Question 1

Which of the following is not the database type supported by RDS?
A) MySQL
B) SQL Server
C) Postgre SQL
D) Oracle database

Accepted Answer

Oracle database is not supported by RDS.

Question 2

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?
A) Event Management Service
B) Aftersales Support
C) Alibaba Cloud Architecture Design Training
D) Alibaba Cloud Product Operation Training

Accepted Answer

The answer of A company wants to migrate its system...

Question 3

Alibaba Cloud Monitor service stems from years of experience of server monitoring technology in Alibaba group, leveraging the powerful data analysis capability of Alibaba cloud computing platform to provide monitoring service for various clients' applications and servers. A user receives an alert saying that the IOPS utilization rate for an ECS instance exceeds 80%. Yet, he/she is not sure how to handle the situation, the user may obtain help from Alibaba Cloud through the below methods ____________________? (Choose three.)
A) Check ECS or CloudMonitor product documents.
B) Open a ticket to Alibaba Cloud help desk.
C) Look for answers in Alibaba Cloud forum.
D) You cannot obtain any help from Alibaba Cloud.

Accepted Answer

The user can check the product documents, open a ticket to Alibaba Cloud help desk, or look for answers in Alibaba Cloud forum to obtain help from Alibaba Cloud. Option D is incorrect as Alibaba Cloud provides support to its customers.

Question 4

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?
A) One
B) Six
C) Zero
D) Five

Accepted Answer

The answer of A customer uses Alibaba Cloud Auto Scaling...

Question 5

You can create a custom image for ECS using which of the followings? (Choose two.)
A) Data disk snapshot
B) CPU snapshot
C) Memory snapshot
D) System disk snapshot

Accepted Answer

A custom image for ECS can be created using a data disk snapshot or a system disk snapshot, as these contain the necessary data and system configurations.

Question 6

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?
A) Web hosting
B) ICP Support
C) Office registration support
D) Connect your service with Alibaba Group ecosystem

Accepted Answer

The answer of Alibaba Cloud China Connect is a service...

Question 7

Which 2 OSS object types can be configured as parameter for object lifecycle management? (Choose two.)
A) Infrequent access
B) Snapshot
C) Archive
D) Chunk

Accepted Answer

Infrequent access and Archive are the two OSS object types that can be configured as parameters for object lifecycle management. Infrequent access is best suited for objects that are accessed less frequently and Archive is best suited for objects that are rarely accessed or have long-term retention requirements. Snapshot and Chunk are not viable options for object lifecycle management in OSS.

Question 8

Which three of the following statements about domain name binding to your OSS bucket are correct? (Choose three.)
A) Your customized domain name will be audited by Alibaba Cloud
B) your customized domain name need to be put on record in MIIT (Ministry of Industry and Information Technology)
C) the number of domain names you bind to one bucket can't exceed 20
D) mapping a domain name to your bucket endpoint is mandatory

Accepted Answer

The answer of Which three of the following statements about...

Question 9

Alibaba Cloud provides anti-DDoS products of different levels. If the service availability needs to be kept at 99.9% or higher under DDoS attacks, which of the following is the MOST suitable product?
A) Anti-DDoS Service Basic
B) Managed Security Service
C) Situation Awareness
D) Anti-DDoS Service Pro

Accepted Answer

The answer of Alibaba Cloud provides anti-DDoS products of different...

Question 10

You built an online shop using Alibaba Cloud services (ECS, RDS, …etc.) and very soon you'll have a campaign that every customer that invites 3 friends will get a 50% off coupon. To avoid HTTP flood attacks and ensure only genuine customers (not bots) joining the event, which security product should you choose?
A) Anti-DDoS Basic
B) Anti-DDoS pro
C) WAF
D) Server Guard

Accepted Answer

After adding your website to the WAF protection list, you can enable HTTP Flood protection and select an appropriate protection mode for the website

Question 11

Server Load Balancer supports protocols like ______________. (Choose four.)
A) HTTP
B) HTTPS
C) TCP
D) UDP
E) MPLS
F) MQTT

Accepted Answer

Comprehensive protocol support - ICMP, TCP, UDP, HTTP, HTTPS,

Question 12

Anti-DDoS is one of the major features in Alibaba Cloud Security Service. Many websites have experienced different types of DDoS attacks, an accurate understanding of DDoS is crucial to protecting websites. Which of the following descriptions about DDoS attack is the most accurate one?
A) The main target for DDoS attack is the database.
B) DDoS attack will try to crack the password through a large number of attempts.
C) The main purpose of DDoS attack is to make the target server unable to provide service normally, which is one of the network attacks that are most difficult to defend.
D) The purpose of DDoS attack is to steal confidential information.

Accepted Answer

DDoS attack aims to make the target server unable to provide service normally by overwhelming it with traffic. It is considered as one of the most difficult network attacks to defend. Options A, B, and D are not accurate descriptions of DDoS attacks.

Question 13

Alibaba Cloud relational database service (RDS) is a stable, reliable and elastic online database service. RDS supports below database types _______________? (Choose three.)
A) MySQL
B) SQL Server
C) PostgreSQL
D) Oracle database

Accepted Answer

Alibaba Cloud RDS supports MySQL, SQL Server, and PostgreSQL as database types.

Question 14

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) The instance and the scaling group must be in the same region and zone.
C) The instance and the scaling group can be in different regions and zones.
D) 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.

Accepted Answer

The answer of Auto Scaling is a management service that...

Question 15

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

Accepted Answer

The statement "Self-built database supports quick deployment and elastic scaling" is incorrect. RDS also supports quick deployment and elastic scaling, making this statement invalid for comparison. The other statements are true in comparing RDS with a self-built database.

Question 16

You are developing a highly available web application using stateless web servers. Which services are suitable for storing session state data? (Choose two.)
A) RDS
B) Table Store
C) MaxCompute
D) OSS

Accepted Answer

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

Question 17

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 "Adjust to 10 ECS instances", and creates a scheduled task based on this rule. And then, the customer checks the scaling group and see it already contains 6 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?
A) Eight
B) Ten
C) Six
D) Five

Accepted Answer

The answer of A customer uses Alibaba Cloud Auto Scaling...

Question 18

Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. Which of the following application scenarios are suitable for Auto Scaling? (Choose three.)
A) You need to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be added seamlessly to address traffic peaks and surges.
B) You need to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be reduced automatically to save costs when business needs drop.
C) When an ECS instance reacts abnormally in a scaling group, Auto Scaling will create a new ECS instance to take over the computing tasks conducted by the faulty instance.
D) You want to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be automatically upgraded (with more Memory, more powerful CPU) when needed.

Accepted Answer

Auto Scaling is suitable for scenarios where you need to flexibly adjust elastic computing resources based on your business needs. This includes adding ECS instances seamlessly to address traffic peaks and surges (A), reducing ECS instances automatically to save costs when business needs drop (B), and creating new ECS instances when an instance reacts abnormally in a scaling group (C). However, Auto Scaling does not automatically upgrade ECS instances (D).

Question 19

Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. Which of the following is not the feature supported by Alibaba Cloud Auto Scaling?
A) Elastic Scale-Out
B) Elastic Scale-In
C) Elastic Self-Health
D) Elastic Self-Diagnostic

Accepted Answer

Elastic Self-Diagnostic is not a feature of Alibaba Cloud Auto Scaling. The service primarily focuses on scaling resources in and out and maintaining health, but it does not perform self-diagnostics.

Question 20

You can __________________ an ECS instance's configuration. (Choose two.)
A) upgraded
B) downgraded
C) downloaded
D) uploaded

Accepted Answer

You can upgrade or downgrade an ECS instance's configuration to change its specifications, such as vCPUs, memory, and bandwidth. Downloading and uploading are actions related to data transfer and do not involve changing the instance's configuration.

Exam 1: ACA Cloud Computing Certification Exam

Which of the following is not the database type supported by RDS?

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?

You can create a custom image for ECS using which of the followings? (Choose two.)

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?

Which 2 OSS object types can be configured as parameter for object lifecycle management? (Choose two.)

Which three of the following statements about domain name binding to your OSS bucket are correct? (Choose three.)

Alibaba Cloud provides anti-DDoS products of different levels. If the service availability needs to be kept at 99.9% or higher under DDoS attacks, which of the following is the MOST suitable product?

Server Load Balancer supports protocols like ______________. (Choose four.)

Anti-DDoS is one of the major features in Alibaba Cloud Security Service. Many websites have experienced different types of DDoS attacks, an accurate understanding of DDoS is crucial to protecting websites. Which of the following descriptions about DDoS attack is the most accurate one?

Alibaba Cloud relational database service (RDS) is a stable, reliable and elastic online database service. RDS supports below database types _______________? (Choose three.)

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

You are developing a highly available web application using stateless web servers. Which services are suitable for storing session state data? (Choose two.)

Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. Which of the following application scenarios are suitable for Auto Scaling? (Choose three.)

Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. Which of the following is not the feature supported by Alibaba Cloud Auto Scaling?

You can __________________ an ECS instance's configuration. (Choose two.)