Question 1

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?

Accepted Answer

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

Question 2

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.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following statements is true for RDS?

Accepted Answer

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 4

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.)

Accepted Answer

A)  Official corporate websites 
B)  large-traffic apps 
C)  Databases 
D)  simple web applications 
E)  no limited online storage

Question 5

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

Accepted Answer

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 6

Which method is not supported by OSS to create a bucket?

Accepted Answer

A)  through OSS API/SDK 
B)  through ECS instance filesystem directory operation 
C)  through oss cmd tool 
D)  through cloud console

Question 7

Some applications may encounter large traffic fluctuations within a short period. When ECS is used with _______, the number of ECS instances is automatically adjusted based on traffic.

Accepted Answer

A)  Server Load Balancer 
B)  RDS 
C)  Auto Scaling 
D)  OSS

Question 8

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

Accepted Answer

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

Question 9

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

Accepted Answer

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 10

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

A) True 
 B)False

Question 11

Company В builds a music download website based on OSS and ECS, and users can download mp3 files after registering for the website. Recently, the public network traffic to the OSS has doubled but the increase of registered users is less than 10%. After in-depth analysis, engineers find that many user download requests are raised from search engine but not the website itself. In this case, which of the following measures is thought to be able to address this issue.

Accepted Answer

A)  Migrates music files from the OSS to the data disks for ECS instances. 
B)  Changes the website access mode to HTTPS. 
C)  Limits access sources by configuring "Anti-leech settings" of OSS bucket attributes. 
D)  Introduce SLB for extra protection.

Question 12

RDS for MySQL is a PaaS, which means after creating the RDS instance, the user does not need to take care of the underlying OS, runtime environment of software packages. These would be taken care of by Alibaba Cloud.

Accepted Answer

A) True 
 B)False

Question 13

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?

Accepted Answer

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.

Question 14

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

Accepted Answer

A)  MySQL 
B)  SQL Server 
C)  Postgre SQL 
D)  Oracle database

Question 15

Multiple lower-configuration I/O-optimized ECS instances can be used with ___________ to deliver a high-availability architecture.

Accepted Answer

A)  Server Load Balancer 
B)  RDS 
C)  Auto Scaling 
D)  OSS

Question 16

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

Accepted Answer

A)  MySQL 
B)  SQL Server 
C)  PostgreSQL 
D)  Oracle database

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 "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?

Accepted Answer

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

Question 18

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?

Accepted Answer

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.

Question 19

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.)

Accepted Answer

A)  Private-read 
B)  Public-read-write 
C)  Public-read 
D)  Private

Question 20

SQL injection is a common application layer attack, usually through building special input parameters and pass it to web applications to steal or sabotage the application data. Which of the following is the target for SQL injection?

Accepted Answer

A)  Web application 
B)  Database 
C)  Confidential files on the server 
D)  Pictures on server

Exam 1: ACA Cloud Computing Certification Exam

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?

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.

Which of the following statements is true for RDS?

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.)

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

Which method is not supported by OSS to create a bucket?

Some applications may encounter large traffic fluctuations within a short period. When ECS is used with _______, the number of ECS instances is automatically adjusted based on traffic.

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

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

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.

RDS for MySQL is a PaaS, which means after creating the RDS instance, the user does not need to take care of the underlying OS, runtime environment of software packages. These would be taken care of by Alibaba Cloud.

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?

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

Multiple lower-configuration I/O-optimized ECS instances can be used with ___________ to deliver a high-availability architecture.

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

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.)

SQL injection is a common application layer attack, usually through building special input parameters and pass it to web applications to steal or sabotage the application data. Which of the following is the target for SQL injection?