Latest Alibaba Cloud ACP-Cloud1 Actual Free Exam Questions & Community Discussion, Page 5

Question #57

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. Choose Round-Robin model and ECS instances with higher capacities will surely be assigned with more requests.

C. 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.

D. SLB cannot assign more requests to certain ECS instances.

Discussion 0

Correct Answer: C Vote an answer

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Question #58

Auto Scaling can automatically adjust the number of ECS instances based on user-defined scaling rules to meet service needs. If a user cannot predict service changes or does not have enough history data, he/she can still use dynamic scaling mode to automatically add/remove ECS instances based on certain Cloud Monitor performance metrics (such as the CPU utilization rate)

A. True

B. False

Discussion 0

Correct Answer: A Vote an answer

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Question #59

When distributing loads to multiple ECS instances with an Alibaba Cloud Server Load Balancer (SLB), you can obtain the real IP addresses of users who initiate the requests through _____________. (Choose two.)

A. For Layer-4 services, SLB obtains the real IP addresses of the visitors by means of the HTTP Header:
X-Forwarded-For, but the "Obtain the Visitors Real IP Address" function must be enabled first.

B. For Layer-7 services, SLB obtains the real IP addresses of the visitors by means of HTTP Header: X- Forwarded-For, but the "Obtain the Visitors Real IP Address" function must be enabled first.

C. For Layer-7 services, you can obtain the visitors' real IP addresses directly, without any additional settings.

D. For Layer-4 services, you can obtain the visitors' real IP addresses directly, without any additional settings.

Discussion 0

Correct Answer: B,D Vote an answer

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Question #60

Alibaba Cloud Content Delivery Network (CDN) is a distributed network that is built and overlaid on the bearer network. It is composed of edge node server clusters distributed across different regions.
The following steps ________________ are required when a user uses Alibaba Cloud CDN. (Choose two.)

A. Activate CDN resource monitoring

B. Refresh cache manually

C. Modify domain name resolution and direct it to the given CNAME

D. Add domain name into "CDN Domain Name List"

Discussion 0

Correct Answer: C,D Vote an answer

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Question #61

Which of the following statements is most accurate about the Data Transmission Service (DTS) database migration function?

A. Supports database schema replication between instances.

B. Supports migrating MySQL databases from external sources.

C. Supports warning when source and destination has some unresolved conflict found.

D. Supports all of the above functions.

Discussion 0

Correct Answer: D Vote an answer

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Question #62

Alibaba Cloud ECS is a simple and efficient computing service. ECS helps you quickly deploy applications, improve your O&M efficiency, and reduce IT costs. ECS belongs to this type of service _____________.

A. SaaS (Software as a Service)

B. IaaS (Infrastructure as a Service)

C. DaaS (Data as a Service)

D. PaaS (Platform as a Service)

Discussion 0

Correct Answer: B Vote an answer

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Question #63

Alibaba Cloud SLB can help distribute traffic among multiple backend servers. Which of the following statements is correct about backend servers?

A. The backend servers can only be Alibaba Cloud ECS instances

B. Supports AWS EC2

C. Supports all cloud products in Alibaba Cloud

D. All servers that can be accessed through the Internet are supported

Discussion 0

Correct Answer: A Vote an answer

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Question #64

Alibaba Cloud's Object Storage Service (OSS) can be used to store a large amount of data, but there is still a maximum number of files in a single bucket.

A. True

B. False

Discussion 0

Correct Answer: B Vote an answer

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Question #65

Which of the following statements about file uploading to OSS is NOT correct?

A. If you are uploading some small files (<1MB), you can choose the PUT method to finish uploading in one HTTP request.

B. If you need to upload very large files, it's better to use multi-part uploading to get the capability of resuming from a breakpoint.

C. All file uploading methods provided by Alibaba Cloud OSS service will support resuming from break point.

D. If you are using OSS to store log files that are continuously being updated, it's better to choose the APPEND method instead of overwriting or generating new versions.

Discussion 0

Correct Answer: C Vote an answer

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Question #66

In an Alibaba Cloud Elastic Compute Service (ECS) instance, you can freely change directory permissions of the system root directory in Linux, which has no influence on all services in the Elastic Compute Service (ECS) instance.

A. TRUE

B. FALSE

Discussion 0

Correct Answer: B Vote an answer

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Question #67

If an administrator often needs to manage multiple ECS instances in an Alibaba Cloud VPC through the Internet Which of the following solutions can meet this need at low costs and without affecting system security.

A. Choose an ECS instance from VPC and make it as the bastion host And then, apply an EIP and bind it to this ECS instance. After that the administrator can manage other ECS instances through this bastion host.

B. None of these answers are correct.

C. Bind an EIP to each of the ECS instances, and Jog on to each of these ECS instances to manage them.

D. Modify the VPC Security Group policy, to allow access from the Internet.

Discussion 0

Correct Answer: A Vote an answer

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Question #68

The difference between public and private Server Load Balancers (SLBs) is that private SLBs connect to their backend ECS instances using the private network (Intranet) while public SLBs connect to their backend ECS instances using the public network (Internet).

A. True

B. False

Discussion 0

Correct Answer: A Vote an answer

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Question #69

Alibaba Cloud Content Delivery Network (CDN) is a distributed network that is built and overlaid on the bearer network. It is composed of edge node server clusters distributed across different regions.
Alibaba Cloud CDN can directly accelerate an IP address. The accelerated website does not need to bind a domain name.

A. TRUE

B. FALSE

Discussion 0

Correct Answer: B Vote an answer

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Question #70

Once ECS is created, you can't change its private IP address anymore.

A. True

B. False

Discussion 0

Correct Answer: B Vote an answer

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