If you do not know the computer knowledge in the Internet era, then you are afraid that you are behind The Times. Now many Internet companies will recruit website operation and maintenance personnel. If you know the relevant technology, then employment will be much more convenient in the future. If you want to apply for Internet operation and maintenance positions, you need to have relevant certificates. Ali cloud ACP certification is a kind of certification that many people will go to test, because Ali cloud market share is relatively high, which also leads to widespread recognition of Ali cloud ACP certification in China. If you plan to register for the ACP certification of Aliyun, the following Xiaobian will introduce Aliyun ACP exam question bank to you.
Ali cloud ACP examination question bank introduction
1. Single choice
When using load balancing SLB of Ali Cloud, in order to achieve high availability across regions, multiple instances of load balancing SLB can be created in different regions and external services can be provided through _A__.
A, DNS polling
B, DNS broadcasting
C, DNS multicast
D. The minimum number of DNS connections
2. Single choice
When using load balancing SLB instances of AliCloud, the availability of back-end cloud server ECS instances can be determined by health check. For the 4-tier service (UDP protocol), the load balancing SLB instance determines whether the cloud server ECS instance is available by _D___.
A. Status code returned by the server side of the cloud server ECS instance
B. Special characters in the contents of the message returned by the server side of the cloud server ECS instance
C. The number of bytes returned by the server side of the cloud server ECS instance
D. Whether the port check timeouts
3. Single choice
Server security hosting is a senior service of Ali Cloud Cloud Shield, the service content includes expert artificial security physical examination, Trojan removal, VIP technical support, etc., this service is for Ali Cloud _B___ products to provide.
A. Cloud database RDS
B. Cloud server ECS
C. Load balancing SLB
D. Proprietary network VPC
4. Single choice
When using AliCloud Autoscaling, we hope to increase or reduce cloud server ECS instances according to the use of computing resources. For example, when the CPU utilization is less than or equal to 30%, we can reduce a cloud server ECS instance. First, we configure the expansion rule to “reduce an ECS”, and then __B__ is needed to achieve it.
A. Create a timed task
B. Create an alarm task
C. Set the properties of the expansion group
D. Create a scalable configuration
5. Single choice
AliCloud object storage OSS is a service charged by use. In order to prevent users’ data on OSS from being hotlinking by others and causing unnecessary expenditure, OSS has designed hotlinking protection function. Is the following statement about hotlinking protection implementation mechanism correct? D
A. Based on IP black and white list mechanism
B. Implementation of HTTP-based Authorization
C. Implementation based on SSL key
D, Based on the table header field referer in HttpHeader
6. Single choice
If Ali cloud object storage 0SS customers want to restrict access to OSS IP, only a limited number of IP addresses can download files on OSS, can be achieved through the __C__ configuration method.
A, OSS itself does not provide IP whitelist, you can deploy SLB in front of OSS, and then configure IP whitelist on SLB
B. Use the IP blacklist function of OSS directly
C. OSS itself does not provide IP whitelist, so you can use CDN to accelerate, and then configure IP whitelist on CDN
D. Use IP whitelist function of OSS directly
7. Single choice
The online platform of an insurance company has more than 200,000 online orders every day, which has been frequently hit by heavy traffic (more than 10G) in the past year, making the service intermittent and seriously affecting the company’s brand and business volume. If the customer uses Ali Cloud’s __D__ product, it can resist this kind of attack and ensure the high availability of the business.
A, DDOS basic protection
B. Server security hosting
C. Situational awareness
D, DDOS high anti IP
8. Single choice
In the public cloud environment, Ali Cloud is responsible for the security of cloud computing infrastructure (such as :IDC environment, physical server operation and maintenance, cloud product virtualization layer, etc.), users need to purchase the cloud products to carry out the necessary security optimization and protection Settings, the following customer behavior you think is the most secure _D___.
A. For the convenience of management, change the administrator password of cloud server ECS instance to 123456
B. In order to reduce the communication cost, the five administrators of GongTong all log in the cloud server ECS instance with the root account
C. To facilitate colleagues working at home to update data, open public network IP for cloud database RDS instance, and allow all IP connections
D. After the ECS instance of cloud server is successfully purchased, the security group firewall of the ECS instance is enabled through the management console immediately, and it is set to allow remote login of only a certain management IP
9. Multiple choice questions
An enterprise runs an e-commerce platform, hosted in a traditional computer room. The main way of sales is to attract customers by recommendation and real comments from members’ friends, so the platform has set up an interactive forum, and the average number of posts in 24 hours is more than 5,000.
The main difficulties are: 2-3 DDoS attacks per week, with traffic ranging from 200M to 1 or 5G each time. In addition, the workload of forum content review is heavy, and a total of 6 people have been put into 24-hour rotation to review whether there is illegal information in the posted content. The company decided last week to move its main platform to Ali Cloud, using the ___AD_ function of Cloud Shield to solve these problems. (Number of correct answers :2)
A, DDoS basic protection, can protect the small-scale DDoS attack
B. Turn on situational awareness to automatically screen illegal information
C, open Ann Knight, in the user post at the time can be immediately blocked
D. Open Ali Green Net, which has the function of automatic identification of illegal contents and can reduce the workload of audit
10. Single choice
You have a running cloud server ECS instance and have completed the deployment of the required application software. If you want to create a new cloud server ECS instance that deploys the same software, __B__ is the most efficient way to get it.
A. Make a snapshot based on the system disk of the existing cloud server ECS instance, and generate a new cloud server ECS instance based on the snapshot
B. Make a custom image based on the system disk of the existing cloud server ECS instance, and generate a new cloud server ECS instance based on the custom image
C. Upload the locally made image and create a new cloud server ECS instance based on the image
D. Generate a new cloud server ECS instance directly and run the deployment of the required software
11. Single choice
After you have built a new block storage, you want to mount the disk to the cloud server ECS instance through the management console of Ali Cloud, but you cannot find the cloud server instance that you want to mount. It must not be caused by ___B_.
A. Block storage and cloud server ECS instance are in the same region
B, Block storage and cloud server ECS instance in the same available area
C. Block storage and cloud server ECS instance are not in the same available area
D. ECS instance of cloud server has been released
Both the SSD cloud disk and the underlying storage medium of the local SSD disk supported by Aliyun’s cloud server ECS products are SSD disks. The description of these two different types of disks correctly includes __BD__. (Number of correct answers :2)
A, There is a limit to the number of SSD cloud disks that can be mounted in an ECS instance, and the number of local SSD disks that can be mounted can be added at will
B. ECS instances where the system disk is local SSD disk do not support downtime migration
C, SSD cloud disk and local SSD disk data security is as high
D, SSD cloud disk, and local SSD disks all have higher IOPS for random and sequential reads and writes than regular cloud disk
13. Single choice choice
You have built A Web application service based on cloud server ECS instance under Ali cloud account A. If you need to quickly create cloud server ECS instance containing the same application in another Ali cloud account B, you can realize the most efficient way through __A__.
A. Create a custom image of the cloud server ECS instance in account A, and share the image to account B, and account B creates a new cloud server ECS instance based on the shared image
B. It can’t be done any other way
C. Create A snapshot of the cloud server ECS instance in account A and share the snapshot to account B to create A new ECS instance based on this snapshot
D. Directly apply for cloud server ECS instance in account B and deploy the same Web application
14. Single choice
When an AliCloud cloud server ECS instance cannot join the specified security group, it may be __A__ cause.
A. The number of security groups that the ECS instance of the cloud server has joined has reached the upper limit
B. The cloud server ECS instance has joined a security group by default after creation, and cannot join other security groups
C. The state of ECS instance of the cloud server is in operation
D. The cloud server ECS instance does not open the public network bandwidth, so it cannot join the security group
Aliyun cloud server ECS products have the advantages that traditional servers and virtual hosts can not reach. In terms of ease of use, the cloud server ECS product _ABCDE___ has obvious characteristics. (Number of correct answers :5)
A, can quickly copy multiple ECS instances
B, support custom mirror, data disk snapshot
C. The management of cloud server ECS instance can be carried out anywhere through the management console of Tongli Cloud
D. Aliyun’s cloud market provides rich operating systems and application software
E. Deploy the same operating system and software environment with one click through mirroring
F. Various system configurations of cloud server ECS instances can be arbitrarily modified without affecting the normal use of ECS instances
16. Single choice
AliCloud Autoscaling is a management service that automatically adjusts its elastic computing resources according to the needs and strategies of the industry. Support for users to add existing cloud server ECS instances, but the cloud server ECS instance state must be __B__.
B. In operation
D. Has stopped
AliCloud Autoscaling is a management service that automatically adjusts users’ flexible resources according to their business needs and strategies. Which of the following application scenarios can be achieved by elastic scaling? (Number of correct answers :3)ACD
A. When an ECS instance in the flex group fails, the elastic flex will create a new ECS instance and take over the computation task of the failed ECS instance
B. Users can automatically adjust their elastic computing resources according to their own business needs, and automatically improve the configuration of ECS when the business needs rise
C. Users automatically adjust their elastic computing resources based on their own business needs to seamlessly increase the number of ECS instances when meeting peak business demand growth
D. Users automatically adjust their elastic computing resources according to their own business needs, and automatically reduce the number of ECS instances to save costs when business needs decline
18. Single choice
Regarding the cost of users using Ali Cloud’s proprietary network VPC products, the following statement is incorrect.
A, Proprietary Network VPC is a free network container
B. The elastic public IP used in VPC is free
C. The switch is free of charge
D. The router is free
19. Multiple choice
The router is the hub of Ali Cloud’s proprietary network VPC. The following statements about routers include __ACD__. (Number of correct answers :3)
A. When creating a VPC, the system will automatically create 1 router for each VPC
B. The router does not support forwarding network traffic according to specific routing entry Settings
C. When VPC is deleted, the corresponding router will be automatically deleted
D. Direct creation and deletion of routers is not supported
20. Single choice
The bill cost of Aliyun 0SS products consists of three parts, including: storage space cost, traffic cost and OSSAPI request cost. The traffic charges are based on how much the user uses the OSS for downlink traffic, while the uplink traffic and traffic accessed through the Intranet are free. Which of the following usage scenarios does not incur OSS traffic charges? C
A. The administrator browses the pictures in OSSBucket in his own office
B. In order to improve the access speed of the store, a Taobao seller uploads all the pictures in the store to OSS and then directly quotes them in the store
C. A department administrator uses OSS as data backup, uploading 200G data from ECS to OSS via Intranet every night
D. The static website on Aliyun ECS directly quotes the pictures in OSS, and the page views of this website from the public network are 100 times per day
21. Single choice
The bill cost of Aliyun OSS products consists of three parts, including: storage space cost, traffic cost and OSSAPI request cost. Each operation on OSS counts as an API request, uploading a file is a PUT request, and downloading a file is a GET request. OSSAPI request fee payment method support __B__.
A, only cover year and month
B. Only pay as you go
C. By the day and by the volume
D, annual and monthly payment and volume payment
Aliyun object storage OSS is a massive, safe, low-cost and highly reliable cloud storage service provided by Aliyun. Billing charges for OSS products consist of three parts, including storage space charges, traffic charges and API request charges. The following traffic charges are charged for ___CD_ operations against the OSS. (Number of correct answers :2)
A. Transfer files from local PC to OSS
B. ECS instance of cloud server downloads OSS file through Intranet IP
C. The cloud server ECS instance downloads the OSS file through the public network IP
D. Download OSS files from local PC
23. Single choice
You want to backup the operation disk data of your ECS cloud server instance of AliCloud on a regular basis, but manual data backup is very time-consuming, or can not be operated on schedule for some reasons, you can use ___B_ to solve the problem of regular data backup in the most efficient way.
A. Please ask the operation and maintenance personnel to make the mirror regularly
B, Set the policy of automatic snapshot of disk, and put this policy into effect on the disk that needs to be backed up
C, Set the disk automatic mirroring policy, and put the policy in effect on the disk to be backed up
D. Please ask the operation and maintenance personnel to take snapshots regularly
24. Single choice
You need to create a disk snapshot of a cloud service ECS instance, which can only be created if the cloud service’s ECS instance is __B__.
B. In operation
C. Under construction
If the same account of Ali Cloud is in the same region and different cloud server ECS instances, the internal network interconnection between ECS instances can be set by security group rules. ECS instances under the same security group are interconnected by default, while ECS instances under different security groups are disconnected by default. If you want two ECS instances InstanceA and instanceB to be able to communicate on the internal network, the following operations correctly include __BD__. (Number of correct answers :2)
A. If Instancea and InstanceB of cloud server ECS are not in the same security group, it only needs to set security group rules in one security group to authorize the access of the other security group, so as to meet the interconnection between the internal network
B, ECS InstanceA and InstanceB into the same security group, can meet the internal network communication
C. In order to achieve internal network interoperability, be sure to put ECS InstanceA and InstanceB in the same security group
D, If ECS InstanceA and InstanceB are not in the same security group, each security group adds a security group rule that authorizes the other security group to access, so as to satisfy the internal network interconnection
26. Single choice
You have started a new cloud server ECS instance of Ali Cloud. You want to allow public network access on port 80 only. This can be done by __D__.
A. Create a new security group, and add a new security group rule to allow traffic into the public network of port 80, and put the cloud server instance into the security group
B. Add a public network access rule to the default security group where this instance is located that only allows public network access on port 80, and add a public network access rule for public network traffic
C. Create a new security group and add a new security group rule to allow traffic into the public network of port 80. Put the cloud server instance into this security group and remove it from the original default security group
D, Add a public network access rule to the default security group where this instance is located to allow only public network traffic on port 80
You plan to build a website based on the ECS instance of AliCloud cloud server. The factors that may affect the opening speed of the website include __ABCE__. (Number of correct answers :4)
A. Bandwidth of the network
B, the size of the content itself
C. Whether the content of other websites is cited too much
D. Disk size of cloud server ECS instance
E. Whether there are a large number of database operations
28. Single choice
OpenSystem Interconnection Reference Model (OSI) is a reference model for open system interconnection jointly developed by ISO and CCITT. It provides a framework of functional structure for open system interconnection information system. The seventh layer we often use is __A__.
A. Application layer
B. Transport layer
C. Session layer
D. Representation layer
29. Multiple choice
AliCloud Load Balancing SLB is a traffic distribution service for ECS instances of multiple cloud servers. Configure and manage a load balancing SLB instance, which involves the following __ABD__ operations. (Number of correct answers :3)
A. Monitoring configuration of load balancing SLB instance
B. Configuration of backend ECS instance of load balancing SLB instance
C. Public network IP of load balancing SLB
D. Attribute configuration of load balancing SLB instance
30. Single choice
The flexible public network IP of Ali Cloud supports dynamic binding and unbinding of cloud server ECS instances. The following statement about the elastic public network IP is incorrect: __C__.
A. An elastic public IP can only be bound to one ECS instance
B. The elastic public network IP can only be bound to the ECS instance of the cloud server of VPC type in the same region
C. The IP of the elastic public network can only be bound to the ECS instance of the cloud server of VPC type in the specific available area in the same region
D. The elastic public network IP cannot be bound to the ECS instance of the cloud server of the classical network
The routing table is a list of administrative routers on Ali Cloud’s proprietary network VPC routers, and the routing entry defines the next-hop address of the network traffic leading to the designated target network segment. The routing table supports configuration via _BD___. (Number of correct answers :2)
A. Log in to the router remotely for control
B. OpenAPI of Aliyun VPC
C. Control the router directly after entering the computer room
D. Management console of VPC for a proprietary network
User A is A system administrator of the company, who often goes to Shanghai on business trips. Whenever he logs in remotely in Shanghai, the system will send out an alarm message, reminding him that “someone logs in remotely, please pay attention to server security”. The __D__ method can solve this problem quickly and self-help.
A. Submit the work order immediately and consult Aliyun engineer
B. Call my friend for advice. He is a famous hacker in the industry
C. Ask for help from company leaders
D. Log in the Aliyun management console and fill in the “common landing location” in the security knight configuration item.
An Aliyun user developed a mobile APP game, which supports the uploading of text and pictures for interactive communication, and is very popular among users. Recently, there are two problems in the operation process; Over 1000 users a day are interrupted by local DNS tampering; In addition, users uploaded illegal pictures, has received a formal warning from the public security personnel. Admins using AliCloud _AC___ product can reduce two risks. (Number of correct answers :2)
A. Ali Green Network
B. Server security hosting
D, DDOS high anti IP
34. Single choice
After you have created AliCloud block storage and completed the mounting of cloud server ECS instance, __D__ operation is needed to use the block storage normally.
A. It can be used directly without operation
B. The Linux cloud server does not require a separate operation
C. Windows cloud server can be used without any separate operation
D. The ECS instance of the landing cloud server is also required to perform the operation of “partition formatting and mounting new partitions” on the mounted disks
Your specific business needs to be temporarily suspended for a period of time. In order to save costs, you want to temporarily not use or release the cloud server ECS instances of these businesses, but you want to continue to retain the services and data running on the existing cloud server ECS instance system disk, which can be achieved through ___B_ in the most economical and efficient way.
A. If the ECS instance of the cloud server is released directly, Ali Cloud will automatically retain data for users
B. Make a custom image of the cloud server and release the instance
C. Suspend the cloud server ECS instance
D. Direct release of the cloud server ECS instance, automatic mirroring can ensure that the application and data that need to be retained can be recovered
36. Single choice
When the system disk of cloud server ECS instance of Ali Cloud is __D__, the system disk capacity of cloud server ECS instance can be expanded.
Blocks such as ordinary cloud disk/high efficiency cloud disk /SSD cloud disk/local SSD disk are supported to select the size of the system disk when newly purchased. The stock of ordinary cloud disk/efficient cloud disk /SSD cloud disk is used as the system disk. When the system disk is replaced, the capacity of the system disk can be re-selected. All the regions support the system to expand the size of the disk. I feel that the choice of AD is more appropriate, but it is a single choice, if the test meets the reference to other information choose D seems to be correct
A, SSD cloud disk
B. Anything else
C. Local SSD disk
D, high efficiency cloud disk
You have purchased a cloud server ECS instance of Ali Cloud and mounted 3 data disks. Now you need to upgrade the cloud service ECS instance. The configuration of the possible level includes __ABCD__. (Number of correct answers :4)
C. Limited Extended Disk Capacity
E. Increase data disk without upper limit
Aliyun cloud server ECS instance is a virtual computing environment, including CPU memory and other basic computing resources. A cloud server ECS instance can also include the _BCDE___ resource. (Number of correct answers :4)
A. Keyboard and mouse
B, IP address and bandwidth
C, the snapshot
39. Do you have any questions
AliCloud cloud server ECS instance can create a custom image through the snapshot of the data disk, which is used for rapid replication and generation of new ECS instance. B
40. Single choice
The load balancing SLB of AliCloud can expand the external service capability of the application system through traffic distribution and improve the availability of the application system by eliminating the single point of failure. The following statement about the characteristics of the load balancing SLB is incorrect.
A. Extensibility: support to delete and add back-end cloud servers to achieve seamless scaling
B. Cross-regional disaster recovery: support the same load balancing SLB instance to distribute the load to cloud server ECS instance across multiple regions, with higher availability
C. Cost: Compared with traditional hardware load balancing, the cost is greatly reduced
D. Security: combining security products of Ali Cloud to provide a variety of security protection, making the application more secure and reliable
41. Single choice
Ali cloud load balancing SLB can expand the ability of the application system deployed in the back-end server to serve the external through traffic distribution, and improve the availability of the application system by eliminating the single point of failure. It must be used with the __D__ provided by Ali cloud.
A. Cloud monitoring
B. Cloud database RDS
C. Proprietary network VPC
D. Cloud server ECS
The load balancing SLB of Ali Cloud provides the service of traffic distribution for ECS instances of multiple cloud servers, which has the characteristics of high availability, low cost, security and reliability. The correct statement about AliCloud’s load balancing SLB is _ABC___. (Number of correct answers :3)
A. Support disaster recovery within the city
B. No need to purchase expensive load balancing equipment once
C. Support elastic capacity expansion according to application load
D. Combination of cloud shield to provide free anti-DDOS attack capability of more than 20G
43. Do you have any questions
By default, the load balancing SLB instance of AliCloud will distribute the access requests from the same client to the same ECS instance of the back-end cloud server for processing, without additional configuration. B
Ali Object Storage OSS is a massive, safe, low-cost and highly reliable cloud storage service provided by Ali Cloud. Compared with self-built storage, OSS has advantages in reliability, security, cost and data processing capacity. The following _D___ are the security advantages of OSS.
A. Flow cleaning and black hole equipment need to be purchased separately. In the cloud market of Aliyun, there are many high-quality suppliers for choice
B. Ali Cloud provides customized security services, which can be customized for one-to-one development according to the needs of users
C. OSS provides flexible development interface, compatible with the mainstream security protection equipment and protocols in the market
D. Provide a variety of authentication and authorization mechanisms, as well as whitelist, hotlinking prevention, master and child account functions
45. Single choice
In traditional IT solutions, to mass data storage to achieve higher than 99, 99999999% of the data reliability, and in the case of a single physical damage of the hardware will not affect the normal service, need to buy more than one professional storage server, at least with a double power supply + double controller + disk redundancy, fault alarm functions can be done. Ali cloud __A__ service naturally has this feature, that is, out of the box.
A. Object storage OSS
B. Cloud database RDS
C. Content distribution network CDN
D. Load balancing SLB
Aliyun object storage OSS is a massive, safe, low-cost and highly reliable cloud storage service provided by Aliyun. Compared with self-built storage, OSS has obvious advantages in reliability, security, cost and data processing power. The following __BCD__ belongs to the cost advantages of OSS. (Number of correct answers :3)
A. There is no need to select the capacity of OSS when it is opened for the first time. Later, the capacity can be expanded at any time according to actual needs, and the service will only be interrupted for 1-2 seconds
B. OSS service is based on multi-line BGP backbone network construction, with no bandwidth limit for downlink and free upstream traffic
C. The end user of OSS does not need to invest operation and maintenance personnel and hosting fees, and the background operation and maintenance are completely responsible by Ali Cloud
D. No need to store hardware devices with peak capacity at one time, but pay according to actual capacity
47. Answer the following questions
Aliyun object storage OSS is a massive, safe, low-cost and highly reliable cloud storage service provided by Aliyun. OSS adopts the multi-copy data redundancy mechanism. When the underlying hardware fails, the OSS service will be interrupted for a short time and can be repaired within 2 minutes at the fastest. B
48. Single choice
AliCloud’s Ann Knight is a product provided by Cloud Shield to protect the server. The following __D__ does not belong to the function of Ann Knight.
A, prevent operating system password violence crack
B. Trojan horse file check
C, remote login reported potato
D. Prevent password cracking of Web application system
49. Single choice
The technical term for this specification is called “protocol”. The invention of a protocol has played a decisive role in the generation of networking, through which tens of thousands of computers can be connected together. This protocol is called ___A_.
A, the TCP/IP
The security threats that cloud computing faces mainly come from three aspects: availability, integrity and confidentiality. The following _BC___ threats will affect the confidentiality of cloud computing. (Number of correct answers :2)
A. Backbone network interruption
B. A back door appears on the website, and private data is made public
C. Illegal access to data
D. Power interruption
Judge the question
Ali cloud shield DDoS high IP protection to resist hundreds of G DDoS attacks, Ali cloud and non-Ali cloud host can make
High IP protection service with cloud shield DDOS. A
Hardware virtualization is the use of software to redefine the division of IT resources, IT can realize the dynamic allocation of IT resources, flexible scheduling, cross-domain sharing, improve the utilization of IT resources, is the basic technology of cloud computing. If one virtual machine crashes due to an error, other virtual machines on the same physical machine will not be affected. What is a feature that describes virtualization technology? D
A. Hardware independent
Compared with the traditional software operation and maintenance mode, cloud computing requires that hardware resources and software sources can be better shared, and any enterprise user can customize the configuration of SaaS software according to their own needs without affecting the use of other users. What technology in the cloud computing environment can fulfill the above requirements? D
A. Computing resource isolation technology
B. CDN technology
C. VPC technology
D. Multi-tenancy technology
Aliyun cloud server ECS is a simple, efficient, flexible and scalable computing service that helps you quickly build more stable and secure applications, improve the efficiency of operation and maintenance, and reduce the cost of operation and maintenance. ECS belongs to _B___.
A. PaaS(Platform as a Service)
B. IaaS(Infrastructure as a Service)
C, DAAS (data as service)
D. SaaS(Software as a Service)
Cloud computing is a business computing model, which distributes computing tasks in a resource pool composed of a large number of computing cameras, so that various application systems can obtain computing power, storage space and information services according to their needs. Which of the following is true about the characteristics of cloud computing? (Number of correct answers :5)ABCDE
D. On demand services
E. High reliability
F. Only support single tenant
Cloud storage is a concept derived from cloud computing. The storage and data services in the storage resource pool are provided to authorized users on demand through the network interface. ABDEF
What are the following characteristics of cloud storage? (Number of correct answers :5)
A. High scalability: the scale of cloud storage can be dynamically scaled to meet the needs of the growth of data scale
B. High reliability and availability: high reliability and availability are provided through replication and automatic fault tolerance of nodes and other technologies
C. Management and maintenance: In order to prevent service termination caused by unexpected failures, users need to understand the specific distribution of data storage on different nodes
D. Transparent service: provide a unified interface, such as a RESTful interface to provide services, and the back-end storage node is transparent to the user
E. On-demand service: Cloud storage is a huge resource pool, which can be applied and used by users on demand
F. Super large scale: cloud storage has a considerable scale, and the data stored by a single user can reach TB level or even PB level
57. Answer the following questions
Cloud computing services can provide data storage capacity with very high reliability. For example, the data reliability of ObjectStorageService (OSS) of Ali Cloud is no less than 99, 99999999%. The data reliability of the calculation is completely realized by the redundancy technology of RAID0+1 on the disk. B
The disk snapshot of AliCloud’s cloud server ECS instance is a copy of the data of a disk at a certain point in time. The following description of a disk snapshot for a cloud server ECS instance is correct __A__.
A. The snapshot is stored on OSS and does not occupy the user’s OSS storage space
B. Snapshots are stored on the user’s own disk
C. Only the system disk supports automatic snapshot
D. The name of a snapshot can start with auto
When you make a call request through the OpenAPI interface provided by the ECS product of AliCloud cloud server, the HTTP status code returned by the server is ___D_, indicating that the call is successful.
A, 3 xx
B, 5 xx
C, 4 xx
D, 2 xx
If you no longer need an ECS instance of AliCloud’s pay-as-you-go cloud server, you can release it. The error with regard to the pay-as-you-go instance release operation is __A__.
A. Under no circumstances can a pay-as-you-go ECS instance be released at any time
B. Select a future time to release an ECS instance by setting the automatic release time
C. Can immediately release pay-as-you-go ECS instances
D. You can set the time of automatic release several times and override the previous setting
Block storage is the data block level random storage with low delay and high availability provided by Ali Cloud for cloud server ECS. The following statement about block storage is incorrect: __C__.
A. Block storage cannot mount cloud server ECS instances across available areas
B. Block storage cannot mount cloud server ECS instances across regions
C. Block storage cannot be mounted on the cloud server ECS instance of the package year
D. Block storage supports mount and unload between multiple cloud server ECS instances in the same available area
Before creating ECS instances of cloud server of Ali Cloud, it is necessary to select the configuration of ECS instances. Ali Cloud provides a recommended configuration combination scheme to meet the needs of most users. These recommended configurations are just a reference for you to start using ECS instances of cloud server. At the same time, Ali cloud also provides a flexible and editable way to modify the configuration. If you find the ECS instance configuration is too low or too high in the process of use, you can modify the configuration at any time to change the ECS instance configuration. The following variants for an ECS instance include ___BCD correctly. (Number of correct answers :3)
A. Degradation of cloud server ECS instance configuration is not supported
B. After the change, the IP address of the public network and the internal network of the cloud server ECS instance will not be changed
C. After upgrading the CPU and memory of the cloud server ECS instance, the ECS instance must be restarted through the management console of Ali Cloud to take effect, and restarting within the ECS instance is invalid
D. After the configuration change, the bandwidth of cloud server ECS instance will take effect immediately
The payment methods of cloud server ECS instances include annual payment and pay-as-you-go payment. The following description correctly includes ___ABD_ for the operation of a pay-as-you-go cloud server ECS instance. (Number of correct answers :3)
A. View the consumption record of cloud server ECS instance
B, can release the unused cloud server ECS instance at any time, will not cause the cost of waste
C. Cannot cancel the automatic release time of cloud server ECS instance that has been set
D. Automatic release time of cloud server ECS instance can be set
64. Do you have any questions
If you execute the command fdisk-l in the cloud server ECS instance of the Linux system, it is not found
/dev/xvdb, /dev/xvdc… , /dev/xvdz, indicates that the ECS instance has no disk. B
A prominent feature of Ali cloud object storage OSS is that it provides high data reliability. When it comes to reliability, it can’t be separated from the technology and strategy of backup. What is the following statement about OSS backup? C
A. OSS provides triple backup (three copies are reserved for each data), which can be quickly restored with human participation in case of failure
B. Users need to consider the security of data by themselves. OSS provides a wealth of backup connections, which is convenient for users to conduct remote backup of data
C. OSS provides triple backup (three copies are reserved for each data) for automatic recovery in case of failure
D. The backup of OSS service adopts the RAID0+1 technical scheme of physical disk, and the service will not be affected if two hard disks fail at the same time
Ali cloud object storage OSS automatically allocates an internal network address and an external network address for each storage space Bucket. If the internal network address is used correctly, on the one hand, free traffic between OSSBUKET and cloud server ECS instance can be realized. On the other hand, the cloud server ECS instance accessing OSSBucket through the Intranet has a better network quality, which can effectively improve the uploading and downloading quality of the application deployed on the ECS instance. The following description of the OSSBucket Intranet address is correct: __C__.
A. If the ECS instance uses the OSSBucket Intranet address, it can only access OSSBucket in the same region and in the same available area as the ECS instance
B, ECS instance can access OSSBucket via Intranet as long as the ECS instance and OSSBucket belong to the same user
C. If an ECS instance needs to access OSSBucket’s internal network address, it can only access buckets in the same region as the ECS instance
D. From any ECS instance on the public cloud, you can access OSSBucket in any region through the Intranet
AliCloud Object Storage OSS automatically aslocates an “outer network address” and an “inner network address” to each Bucket. Correct use of OSS Intranet address can save the traffic cost between OSS and cloud server ECS instance, and cloud server ECS instance accessing OSS via Intranet can effectively improve the quality of uploading and downloading. __ABD__ scenarios can be communicated using the OSS “Intranet address”. (Number of correct answers :3)
A. OSSBUKCET is in R1 region. User B has an ECS instance of cloud server in the available area of this region, and the access log on this ECS instance should be saved in OSS
B. OSSBUKCET in R1 region, the user has two cloud server ECS instances in available area A and available area B. Access logs on both ECS instances should be saved in OSS
C. OSSBucket is located in R2 region, and the user has an ECS instance of cloud server in available area A of R1 region, and the access log on this ECS instance should be saved in OSS
D. OSSBucket is in R1 region, and the user has one cloud server ECS instance in available area A of R1 region, and the access log on this ECS instance should be saved in OSS
To judge the question
Users can use AliCloud object storage OSS image processing service (ImageService) to zoom and add watermark to JPG and JPG images. A
You have deployed MySQL database based on Aliyun cloud server ECS instance. With the continuous growth of business volume, your operation and maintenance work is increasing, including database backup, data synchronization between primary and standby databases and other problems. You can use Aliyun __A__ product to quickly solve this problem.
A. Cloud database RDS
B. Form storage
C. Object storage OSS
D. Opensearch service OpenSearch
An important feature of computing is flexibility. Users of Aliyun can automatically adjust computing resources according to business needs and strategies. Increase ECS instances to improve the processing capacity of the system during peak business volume, and automatically reduce ECS instances to save costs during low business volume. For this scenario, the ___D_ product of Ali Cloud can be used together with cloud server ECS instances to achieve elastic computing.
A. Proprietary network VPC
B. Cloud database RDS
C. Load balancing SLB
D, Elastic telescopic AutoScaling
What is the ACP test of Ali Cloud?
Ali Cloud ACP Professional Certification Test is a professional technical certification for those who use the architecture, development, operation and maintenance of Ali Cloud Computing products. It includes ACP certification for Cloud Computing, ACP certification for Big Data, ACP certification for Cloud Security, ACP certification for Enterprise Internet Architecture and ACP certification for Big Data Analyst. ACP certification is the official certification certificate, not only can increase the competitiveness of the workplace, but also can enjoy the exclusive rights and interests of the certification personnel.
The full mark of the exam paper is 100 points, 80 points can be passed, the end of the exam can check the score and get a certificate (valid for 2 years).
Aliyun ACP certification is useful?
It’s useful. The first is job hunting. Currently, in the operation and maintenance industry, many HR will directly ask whether they have ACP certification during the technical interview. There are also a lot of operations and maintenance positions, whether it is relatively entry-level desktop operations and maintenance or high-end proprietary cloud and hybrid cloud operations and maintenance positions, basically all have the description of ACP certification priority.
The second is the improvement of their own quality, even if you are not in the operation and maintenance industry, through the ACP certification can also greatly improve their technical level. Now is not very popular to expand their own money channels, through the ACP certification is equivalent to broaden their own ways to make money.
The above is the introduction of Ali cloud ACP exam question bank, after the enterprise will move their own website to the cloud is the general trend, now learn some knowledge about the Internet, only good for their own. Now the overall difficulty of Aliyun ACP exam is not very big, before preparing for the exam, you can consult the certification ambassador, they will tell you how to review, so that the passing rate will improve a lot.