Question 1

Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. It supports adding existing ECS instances into the scaling group, whose status however must be _________.
A) Running
B) Created
C) Stopped
D) Preparing

Accepted Answer

The ECS instances must be in "Running" status to be added to the auto scaling group.

Question 2

Which of the followings are not the operations that you can do on a cloud disk snapshot? (Choose two.)
A) snapshot duplicate
B) snapshot rollback
C) snapshot download
D) snapshot deletion

Accepted Answer

You cannot duplicate a snapshot because it is a copy of a disk at a specific point in time. Similarly, you cannot download a snapshot as it is typically stored on the cloud provider's server. However, you can rollback to a snapshot and delete a snapshot.

Question 3

As a cloud computing service provider, Alibaba Cloud provides security services including ______. (Choose two.)
A) Security operation for underlying hardware of cloud computing.
B) Application maintenance in ECS instances.
C) Security isolation between cloud computing tenants.
D) IP white list setting for RDS.

Accepted Answer

Alibaba Cloud provides security operation for underlying hardware of cloud computing, which ensures the security and reliability of the entire cloud computing environment. They also provide security isolation between cloud computing tenants, ensuring that each tenant's data and resources are isolated from each other. Options B and D are not security services, but rather maintenance and access control features.

Question 4

An enterprise hosts their servers (include both Linux and Windows servers) in a traditional IDC. Every night hackers with IP addresses from many countries try to crack the password of their servers, making the administrator terribly worried about this. However, because of work requirements, the remote management port of these servers must be opened to public network. The administrator heard that Alibaba Cloud has solutions that can help customers improve the security of their systems. Therefore, he/she wants to migrate the system to Alibaba Cloud. Which of the following functions should the administrator activate in Alibaba Cloud to reduce the possibility of brute force password cracking?
A) CloudMonitor
B) Server Guard
C) Anti-DDoS Basic Service
D) Situation Awareness

Accepted Answer

The best choice for reducing the possibility of brute force password cracking is to activate Server Guard, which provides a variety of security features. For example, Server Guard can protect against brute force attacks by automatically blocking IP addresses with too many failed login attempts. CloudMonitor is a monitoring service, Anti-DDoS Basic Service is focused on DDoS protection, and Situation Awareness is a reporting and risk assessment tool. While these services may also be useful for improving security, they are not specifically designed to address brute force password cracking.

Question 5

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?
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.

Accepted Answer

Configuring Auto Scaling appropriately to automatically add or reduce ECS instances would be the most preferred method from the perspective of cost and implementation simplicity. This is because it would allow the company to automatically scale up or down based on demand, without the need for manual intervention. Additionally, Auto Scaling can be configured with policies based on metrics such as CPU utilization, which would ensure that the company is only paying for the resources it needs during peak traffic periods.

Question 6

When using Alibaba Cloud OSS, you can set access control in 3 different levels, which are _____________ (Choose three.)
A) Bucket level
B) Object level
C) RAM account level
D) Directory level

Accepted Answer

The answer of When using Alibaba Cloud OSS, you can...

Question 7

In which of the following cases would you need to apply an ICP license? (Choose three.)
A) Accelerate your Overseas Website in China
B) Launch your website in China
C) Launch your online shop in China
D) Open your office in China

Accepted Answer

An ICP license is required for websites and online stores to operate legally in China. Additionally, companies that have physical offices in China may also need to obtain an ICP license depending on their business activities. Therefore, options B, C, and D all require an ICP license. Option A, on the other hand, does not necessarily require an ICP license as it is focused on website acceleration rather than website operation.

Question 8

ECS is a highly flexible service. It can be used independently as a simple web server, or used with other Alibaba Cloud products, such as OSS and CDN, to provide advanced solutions. ECS can be used in applications such as: ______________. (Choose four.)
A) Official corporate websites
B) large-traffic apps
C) Databases
D) simple web applications
E) no limited online storage

Accepted Answer

ECS can be used in a variety of applications, including official corporate websites, large-traffic apps, databases, and simple web applications. However, the statement about "no limited online storage" is not accurate - while ECS does include storage options, there are storage limits and pricing considerations to take into account.

Question 9

Alibaba Cloud OSS is a cloud storage service that features massive capacity, outstanding security, low cost, and high reliability. To control the access to the files stored on OSS, OSS provides multiple access permissions for each bucket. These bucket permissions are ____________. (Choose three.)
A) Private-read
B) Public-read-write
C) Public-read
D) Private

Accepted Answer

Alibaba Cloud OSS provides the following access permissions for buckets: Public-read-write, Public-read, and Private. These permissions control how files in the bucket can be accessed by users.

Question 10

You are developing a highly available web application using stateless web servers. Which services are suitable for the application? (Choose three.)
A) RDS
B) SLB
C) ECS
D) MaxCompute
E) OSS

Accepted Answer

The answer of You are developing a highly available web...

Question 11

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.

Accepted Answer

The answer of RDS provides whitelist access policies. You can...

Question 12

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?
A) After-Sales Support Service
B) Support Ticket Service
C) Load and Performance Testing Service
D) None Of The Above

Accepted Answer

The answer of Your friend purchases some Alibaba Cloud resources...

Exam 1: ACA Cloud Computing Certification Exam

Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. It supports adding existing ECS instances into the scaling group, whose status however must be _________.

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

As a cloud computing service provider, Alibaba Cloud provides security services including ______. (Choose two.)

When using Alibaba Cloud OSS, you can set access control in 3 different levels, which are _____________ (Choose three.)

In which of the following cases would you need to apply an ICP license? (Choose three.)

ECS is a highly flexible service. It can be used independently as a simple web server, or used with other Alibaba Cloud products, such as OSS and CDN, to provide advanced solutions. ECS can be used in applications such as: ______________. (Choose four.)

Alibaba Cloud OSS is a cloud storage service that features massive capacity, outstanding security, low cost, and high reliability. To control the access to the files stored on OSS, OSS provides multiple access permissions for each bucket. These bucket permissions are ____________. (Choose three.)

You are developing a highly available web application using stateless web servers. Which services are suitable for the application? (Choose three.)

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.

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?