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Alibaba Cloud ACA-Cloud1 Dumps

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Total 72 questions

ACA Cloud Computing Associate Questions and Answers

Question 1

In mainland China, the approval requirements for business record filing vary depending on provincial communication management bureaus.

Options:

A.

TRUE

B.

FALSE

Question 2

A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group. He/she sets the “Minimum number of instances” to 6 and “Maximum number of instances” to 8.

After correctly configuring scaling settings, the customer adds a scaling rule “Remove 5 ECS instances”, and creates a scheduled task based on this rule.

And then, the customer checks the scaling group and see it already contains 8 valid ECS instances, he/she then enables this scaling group immediately.

How many ECS instances are left in the scaling group when the scheduled task is activated once?

Options:

A.

One

B.

Six

C.

Zero

D.

Five

Question 3

Which of the following statements is wrong when comparing RDS with self-built database?

Options:

A.

RDS features a high availability of 99.95% while self-built database requires you to implement data protection, primary-standby replication, and RAID all by yourself.

B.

RDS provides automatic backup while self-built database requires you to prepare storage space for backup copies and regularly verify that these copies can be restored.

C.

Self-built database supports quick deployment and elastic scaling.

D.

RDS requires no O&M while self-built database requires a dedicated DBA for maintenance, which results in high HR cost.

Question 4

Cloud disks are reliable because they use_________ to provide block-level data storage for ECS instances, ensuring 99.9999999% data reliability.

Options:

A.

a distributed file management system with 3 redundant copies

B.

a file system

C.

a double copy distributed system

D.

a Linux file system

Question 5

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.

Options:

A.

TRUE

B.

FALSE

Question 6

Alibaba Cloud’s object storage (Object Storage Service, OSS for short) can be used to store massive amount of files, but there is still a maximum number of files in a single bucket.

Options:

A.

TRUE

B.

FALSE

Question 7

Which of the following ECS instance configurations can't be changed if we don't change instance type?

Options:

A.

Mem size

B.

System disk size

C.

Data disk size

D.

Number of data disk

Question 8

Alibaba Cloud provides powerful security services (the same level of security services used to support Alibaba Group double 11 shopping festival). However, you have to pay first before using any of the security services.

Options:

A.

TRUE

B.

FALSE

Question 9

Your website has oscillating traffic peaks that are difficult to predict in advance. In this scenario, it is recommended to use SLB andtogether with ECS.

Options:

A.

RDS

B.

Auto Scaling

C.

VPC

D.

MaxCompute

Question 10

Alibaba Cloud CDN can directly accelerate the access to the files stored in OSS and reduce OSS traffic costs.

Options:

A.

TRUE

B.

FALSE

Question 11

Your friend purchases some Alibaba Cloud resources and uses them to build an online training website. Before the site goes online, your friend wants to perform some performance tests but doesn't know how to do it. In this case, which of the following services can help?

Options:

A.

After-Sales Support Service

B.

Support Ticket Service

C.

Load and Performance Testing Service

D.

None Of The Above

Question 12

Which of the followings are not the operations that you can do on a cloud disk snapshot? (Choose two.)

Options:

A.

snapshot duplicate

B.

snapshot rollback

C.

snapshot download

D.

snapshot deletion

Question 13

A large shopping mall deploys a new video surveillance system. The five-floor building in which the mall is located installed 35 HD cameras to monitor the major exits. The surveillance system is deployed on an ECS instance, which has four 2 TB data disks to store video data.

However, video data grows rapidly and the engineers find that the ECS will run out of storage space within 2 weeks.

In this case,product is thought to be the best solution for addressing the storage challenge while ensuring quick access to historical video data when needed.

Options:

A.

Container Service

B.

ECS

C.

OSS

D.

CDN

Question 14

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. If 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?

Options:

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 rest 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.

Question 15

A company wants to migrate its system to public cloud platform and they choose Alibaba Cloud. The migration process is very important and they want to ensure that everything works right. Which of the following services can the company choose?

Options:

A.

Event Management Service

B.

Aftersales Support

C.

Alibaba Cloud Architecture Design Training

D.

Alibaba Cloud Product Operation Training

Question 16

A video streaming company uses SLB to distribute user requests to 30 ECS instances (the 30 ECS instances have the same configuration). Yet, the company finds that the service traffic soars dramatically every night from 20:00 to 02:00. According to their calculation, the evening traffic is 100% higher than the traffic in other periods of time. To properly respond to user requests, which of the following methods is most preferred from the perspective of cost and implementation simplicity?

Options:

A.

Configure Auto Scaling appropriately to automatically add or reduce ECS instances.

B.

Manually create 30 ECS instances using the custom image, and then add them to SLB every night before 20:00 and remove them after 02:00.

C.

Create 30 ECS instances based on the custom image and add them to SLB. Then, configure weights for these ECS instances to respond to user requests every night from 20:00 to 02:00, and reset those weights to zero for other periods of time.

D.

Configure Auto Scaling appropriately to automatically upgrade/downgrade the ECS instances.

Question 17

Which of the following statements is true for RDS?

Options:

A.

Multiple databases can be created in one RDS instance.

B.

Databases with the same name are allowed in the same instance.

C.

Resources are not shared among the databases in the same RDS instance.

D.

None of the above is true.

Question 18

Server Load Balancer supports health checks for ECS instances and allows user to specify the frequency. If an ECS instance does not qualify the health check, traffic will not be forwarded to that instance, thereby ensuring application availability.

Options:

A.

TRUE

B.

FALSE

Question 19

Alibaba Cloud China Connect is a service that can help international companies do business in China. Which of the following services is not included in China Connect?

Options:

A.

Web hosting

B.

ICP Support

C.

Office registration support

D.

Connect your service with Alibaba Group ecosystem

Question 20

Alibaba Cloud does not support Intranet communication between products that are not in the same region, which does not mean?

Options:

A.

ECS instances in different regions cannot communicate with each other on the intranet.

B.

ECS instances and other products in different regions, such as ApsaraDB for RDS and OSS instances, cannot communicate with each other on the intranet.

C.

Server Load Balancer cannot be deployed for ECS instances in various regions.

D.

Server Load Balancer can be deployed for ECS instances in various regions.

Question 21

You canan ECS instance’s configuration. (Choose two.)

Options:

A.

upgraded

B.

downgraded

C.

downloaded

D.

uploaded

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Total 72 questions