ACP-Cloud1トレーニング最新認定問題をゲットAlibaba Cloud Computing合格目指せ2022年03月17日
認定トレーニングACP-Cloud1試験問題集テストエンジン
質問 17
Which of the following scenarios can be done using Alibaba Cloud Express Connection? (Number of correct answers: 2)
- A. Intranet communication between two VPCs under the same account in the same region
- B. Intranet communication between two VPCs in different accounts and different CIDR Blocks
- C. Intranet communication between VPCs and Smart Access Gateway in customers different branch offices
- D. Intranet communication between a VPC and servers in an external IDC
正解: B,C
質問 18
RDS accounts can be used to connect with the databases created on a given RDS instance. Each account can be bound with multiple databases. Yet, the read/write permissions of each database can only be assigned to one RDS account
- A. True
- B. False
正解: A
質問 19
The backend server pool of an Alibaba Cloud SLB contains multiple ECS instances, which may have different service capacities. To exploit the different service capacities of backend ECS instances, which of the following statements is correct?
- A. Choose Weighted Least-Connection mode, and ECS instances with higher capacities will surely be assigned with more requests.
- B. SLB cannot assign more requests to certain ECS instances.
- C. Choose Round-Robin model and ECS instances with higher capacities will surely be assigned with more requests.
- D. Choose Weighted Round Robin mode to set higher weights to ECS instances with higher capacities The higher the weight of the backend ECS instance the higher chance that the instance will receive requests.
正解: D
質問 20
Names of the files in each OSS bucket must be unique Also, they can be renamed.
- A. False
- B. True
正解: A
質問 21
The Alibaba Cloud CDN can directly accelerate access to the files stored in OSS and reduce OSS traffic costs.
- A. True
- B. False
正解: A
質問 22
Alibaba Cloud ECS provides multiple instance types to meet the needs of different business scenarios. A medium-sized enterprise user wants to use two ECS instances, one to deploy a single Tomcat service and the other one to deploy Memcache. Which of the following configurations is most recommended?
- A. Tomcat: 4 cores. 8G, Memcache: 2 cores: 16G
- B. Tomcat: 4 cores: 4G, Memcache: 2 cores: 16G
- C. Tomcat: 4 cores 8G. Memcache: 2 cores 8G
- D. Tomcat: 4 cores, 4G, Memcache: 2 cores, 8G
正解: D
質問 23
When using Alibaba Cloud SLB. you can set different weights for backend ECS instances The higher the weight of a backend ECS instance the more load will be assigned to it An SLB instance has 5 ECS instances in the backend server pool, all of which are healthy Among these 5 ECS instances, the weight of ecs_inst1 is set to 100. Which of the following statements is correct?
- A. We do not know the weight settings of the remaining 4 ECS instances, so we cannot tell what would happen
- B. 100% of loads will be assigned to ecs__inst1, and the remaining 4 ECS instances will stay idle
- C. Based on SLB's working mechanism, approximately 20% of loads will be assigned to ecs_inst1
- D. Based on request level parameters of external requests, all requests with a request level parameter of 100 will be transferred to ecs_inst1
正解: A
質問 24
A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group He/she sets the "Minimum number of instances" to 2 and "Maximum number of instances" to 7.
After correctly configuring scaling settings, the customer adds a scaling rule "Add 6 ECS instances", and creates a scheduled task based on this rule.
And then, the customer checks the scaling group and see it already contains 3 valid ECS instances, he/she then enables this scaling group immediately.
How many ECS instance will be added in the scaling group when the scheduled task is activated once'?
- A. 0
- B. 1
- C. 2
- D. 3
正解: B
質問 25
You are designing a solution for a startup company, the proposed solution is like this You suggest they use ECS instances to process requests from mobile App clients, and use SLB to distribute data traffic and ensure the load across each backend ECS instance is balanced.
Moreover to deal with volatile fluctuations in business volume (page views are much higher on the weekends), you also suggest they use Auto Scaling to dynamically increase or reduce computing resources.
The company is satisfied with the solution you proposed. However, they have one concern that when removing an idle instance from the scaling group: if Auto Scaling shuts the instance down directly, the service running on that instance will be abruptly terminated, resulting in poor user experience.
In order to eliminate your customer's concern, which of the following solutions should you recommend them?
- A. Find the ECS instance that is going to be removed from the backend server pool of the SLB instance, and manually remove this instance from the backend server pool Applications running on this ECS instance will normally return results, but this instance will not be assigned with new requests.
- B. Use the Lifecycle Hook function embedded m Auto Scaling Define a suitable timeout and a web hook to do the necessary work before the instance is removed.
- C. First, insert a script into the image for creating the ECS instance Second, make the script run automatically when the operating system in this ECS instances is about to shut down. This script contains the processing logic that can ensure the instance finish all the remaining tasks before shutting down.
- D. Find the ECS instance that is going to be removed from the backend server pool of the SLB instancer and automatically set the weight of this ECS instance to 0. This instance will not be assigned with new requests, and will be automatically removed from the backend server pool after existing tasks are completed.
正解: B
質問 26
Alibaba Cloud provides comprehensive security protection covering networks, hosts, applications, databases, and content for on-cloud clients. Users using Alibaba Cloud services only need to focus on their own services, without the need to pay any attention to security protection issues.
- A. False
- B. True
正解: A
質問 27
Alibaba Cloud CloudMonitor is a service that monitors Alibaba Cloud resources and Internet functions currently provided by CloudMonitor? (Number of correct answers: 3)
- A. Customized monitoring
- B. Custom firewall
- C. Operation auditing
- D. Cloud service monitoring
- E. Site monitoring
正解: A,D,E
解説:
https://cloudacademy.com/course/alibaba-security-monitoring-1275/introduction-to-cloud-monitor/#:~:text=Cloud%20Monitor%20is%20a%20service,safeguard%20your%20products%20and%20business.
質問 28
Object Storage Service (OSS) supports access logging. A bucket owner can activate access logging for their buckets in the OSS management console. When access logging is activated for bucket A, OSS automatically accesses the request logs for this bucket (in hours) and generates and writes an object to the user-specified bucket B according to certain naming rules. Which of the following statements is true for OSS logging?
- A. Buckets A and B must be the same bucket.
- B. Buckets A and B can belong to different users.
- C. Buckets A and B can be separate buckets (or a single bucket) but they must belong to the same user
- D. Buckets A and B must be different buckets.
正解: C
質問 29
You need to create a new ECS instance for a 10-data test. Which of the following billing methods is most cost-effective?
- A. Preemptible
- B. Subscription
- C. Pay-As-You-Go
- D. Pay-AS-You-Go with Savings Plan
正解: B
質問 30
For ECS and RDS instances under different Alibaba Cloud accounts but in the same region, which of the following statements is NOT correct for migrating self-built MySQL databases (running on ECS) to RDS?
- A. The data can be imported via the public network.
- B. The data cannot be migrated.
- C. The data can be imported via the Intranet
- D. The data can be imported by running mysqldump.
正解: D
質問 31
An online education website is built based on ECS. SLB and Auto Scaling, which greatly reduces resource cost, O&M cost and without compromising system stability and user experience.
Now. the website admin wants to keep the user information (such as source IP, accessed URLs, and duration on each page) for analysis to support their upcoming campaign events In this case, which of the following statements is NOT correct?
- A. Let each ECS instance in the scaling group keeps the user access information it processes Thus, the data saved by these ECS instances can be accessed and analyzed at any time, making the solution not only simple, but also efficient reliable, and cost-effective.
- B. Synchronize user-related access information to OSS in real time or quasi real time for further use
- C. Save user-related access information to ApsaraDB for RDS in real time or quasi real time, which can then be used for performing query and analysis.
- D. Synchronize user-Synchronize user-related access information to ApsaraDB for Memcache in real time or quasi real time. Then, access Memcache using an application or make the data in Memcache persistent based on certain rules and then can use the persistent data for further analysis.
正解: D
質問 32
Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies It supports adding an existing ECS instance into the scaling group but imposes certain requirements on instance region In this case, which of the following statements is true?
- A. The instance and the scaling group must be in the same region but not necessarily the same zone.
- B. Each scaling group can span up to two regions. After adding the ECS instance, the number of regions of all the ECS instances in the scaling group must be no greater than two.
- C. The instance and the scaling group can be in different regions and zones.
- D. The instance and the scaling group must be in the same region and zone.
正解: A
質問 33
By using ApsaraDB for RDS to implement read/write splitting, which of the following can be achieved? (Number of correct answers 2)
- A. Read/write requests to the database are separated.
- B. Both read and write requests are distributed to multiple instance
- C. Read requests are distributed to multiple instances.
- D. Write requests are distributed to multiple instances.
正解: B,D
質問 34
Alibaba Cloud Content Delivery Network (CDN) performs content acceleration with the support of intelligent DNS resolution The following function_________is NOT included in intelligent DNS resolution.
- A. If a user activates mirror sites in different IDCs, intelligent DNS resolution can achieve load balancing by guiding customers in different places to different mirror sites.
- B. The intelligent DNS resolution can parse the same domain name into different IP addresses based on the IP of different visitors.
- C. The intelligent DNS resolution supports web page content caching. A user will receive data from the origin site at first-time access, and then will be reading data from cache in subsequent requests
- D. A user request is directed to the server nearest to the customer based on location information of the pre-configured IP section.
正解: A
質問 35
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