Alibaba Cloud ACP-Cloud1 問題練習

Question No : 1
Alibaba Cloud Elastic Compute Service (ECS) instances in different Security Groups will definitely have no way to communicate with each other.

• A.True
• B.False

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Question No : 2
Which of the following statements is NOT correct, when comparing RDS with a self-built database?

• A.Self-built database support quick deployment and elastic scaling.
• B.RDS requires no O&M while self-built database require a dedicated DBA for maintenance, which results in high HR costs.
• C.RDS features a high availability of 99 95% while self-built databases require you to implement data protection primary-standby replication, and RAID all by yourself.
• D.RDS provides automatic backup while self-built databases require you to prepare storage space for backup copies and regularly verify that these copies can be restored.

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Question No : 3
When creating an ECS instance in your Alibaba Cloud VPC, you must specify a VSwitch for that instance at the same time. Otherwise, you will not be able to create this ECS instance.

• A.True
• B.False

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Question No : 4
If you want to build a secure and isolated network environment on Alibaba Cloud; meanwhile, design your network topology and specify Intranet IP addresses or CIDR Blocks in this network environment as needed, you can choose

• A.Leased line
• B.Virtual Private Cloud (VPC)
• C.Auto Scaling
• D.Express Connect

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Question No : 5
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 Intranet
• B.The data cannot be migrated.
• C.The data can be imported via the public network.
• D.The data can be imported by running mysqldump.

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Question No : 6
By using ApsaraDB for RDS to implement read/write splitting, which of the following can be achieved? (Number of correct answers 2)

• A.Write requests are distributed to multiple instances.
• B.Read requests are distributed to multiple instances.
• C.Read/write requests to the database are separated.
• D.Both read and write requests are distributed to multiple instance

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Question No : 7
Once ECS is created, you can't change its private IP address anymore.

• A.True
• B.False

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Question No : 8
RDS provides whitelist access policies. You can set permitted IP addresses and IP network segments to effectively prevent hackers from attacking the server by port scanning.

• A.True
• B.False

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Question No : 9
Alibaba Cloud SLB can distribute user requests to backend ECS instances. These ECS instances must have the same specification (CPU, Memory)

• A.True
• B.False

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Question No : 10
Which of the following scenarios can be done using Alibaba Cloud Express Connection? (Number of correct answers: 2)

• A.Intranet communication between VPCs and Smart Access Gateway in customers different branch offices
• B.Intranet communication between a VPC and servers in an external IDC
• C.Intranet communication between two VPCs in different accounts and different CIDR Blocks
• D.Intranet communication between two VPCs under the same account in the same region

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Question No : 11
To meet business requirements, a user requires that the backend server of an SLB instance include a primary ECS instance and a secondary ECS instance. When the primary instance is working properly, the traffic is only forwarded to the primary ECS, when the primary instance is down, traffic is switched to the standby instance. In this case, you can create an active/standby server group on the backend of the SLB instance.
Which kind of listener supports this feature? (Number of correct answers: 2)

• A.HTTPS
• B.HTTP
• C.UDP
• D.TCP

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Question No : 12
SLB is a load balancing service that distributes traffic to multiple cloud servers It provides a wide range of functions to meet the needs of various business scenarios If a user wants to use SLB and ECS instances to deploy two-way authenticated HTTPS websites, the following statement is correct_______.

• A.SLB can only host SSL certificates, not CA certificates.
• B.You need to host server SSL certificates and client CA certificates on SLB
• C.SLB can only host CA certificates, not SSL certificate
• D.SLB can only support HTTPS one-way authentication

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Question No : 13
Company A constructed a sales management platform using three Elastic Compute Service (ECS) instances. One of the instances runs MySQL, and is used as the database server. The other two instances are used as Web servers After some time, the number of employees in Company A dramatically increases, leading to higher sales volumes At the same time, the platform response speed is gradually decreasing too.
According to the report from CloudMonitor, the average CPU utilization rate of the two Web servers exceeds 70%, and database load reaches 75% Company A can select Alibaba Cloud_________ services.to cope with the issue and optimize the performance. (Number of correct answers: 2)

• A.Import database data into Object Storage Service (OSS) to share the storage pressure on the platform
• B.Incorporate Server Load Balancer (SLB) and add additional ECS instances to relieve the load on existing ECS instances
• C.Use Content Delivery Network (CDN) to enhance content loading speed
• D.Replace the self-built MySQL database with ApsaraDB for RDS to obtain better database performance, and utilize RDS read-only instances to handle read-only requests

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Question No : 14
Which of the following privilege is required to manually install Alibaba Clod Security Center on the server?

• A.Database Access privilege
• B.Common user privilege
• C.System administrator privilege
• D.FTP service privilege

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Question No : 15
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.None of these answers are correct.
• B.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.
• C.Modify the VPC Security Group policy, to allow access from the Internet.
• D.Bind an EIP to each of the ECS instances, and Jog on to each of these ECS instances to manage them.

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