Alibaba Cloud ACP-Cloud1 問題集

質問 1：
By using ApsaraDB for RDS to implement read/write splitting, which of the following can be achieved?
(Number of correct answers 2)
A. Read requests are distributed to multiple instances.
B. Both read and write requests are distributed to multiple instance
C. Write requests are distributed to multiple instances.
D. Read/write requests to the database are separated.
正解：A,D
解説: (Topexam メンバーにのみ表示されます)

質問 2：
When a customer uses Alibaba Cloud Object Storage Service (OSS) service and finds there exist an amount of Internet downstream traffic, he/she can use Alibaba Cloud Content Delivery Network (CDN) service to reduce the traffic cost.
Because the Internet traffic cost of CDN is lower than that of OSS, moreover, the back-to-source traffic cost from CDN to OSS is also lower than a user access to OSS directly.
A. False
B. True
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 3：
A large shopping mall deploys a new video surveillance system. The five-floor building in which the mall is located has 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 so rapidly that the engineers find 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.
A. OSS
B. ECS
C. CDN
D. Container Service
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Before data communication is setup, the security groups match the security group rules one by one to query whether to allow access requests Assume that the user has created two security group rules 1 and 2 The protocol type, port range, authorization type, and authorization object of the two security group rules are the same. The difference is that Rule 1 is a denial policy, rule 2 is an allowed policy, so the following statement is correct_______ (Number of correct answers 2)
A. If rule 1 and rule 2 have different priorities, the rule with a small priority number takes effect
B. If rule 1 and rule 2 have the same priority, the rule of the denial policy takes effect first, and the rule of the allowed policy does not take effect
C. If rule 1 and rule 2 have different priorities, the rule with a large priority number takes effect.
D. If rule 1 and rule 2 have the same priority, the rule of the allowed policy takes effect first, and the rule that of the denial policy does not take effect.
正解：A,B
解説: (Topexam メンバーにのみ表示されます)

質問 5：
In Alibaba Cloud VPC, the device used for connecting each VSwitch is ________.
A. Route Table
B. ECS
C. VRouter
D. SLB
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 6：
There are scheduled tasks and event-triggered tasks in Auto Scaling. Regarding event-triggered tasks, which of the following metrics are supported for this type of task? (Choose four.)
A. Disk IOPS
B. CPU workload
C. Memory utilization rate
D. Inbound and outbound traffic
E. Average system workload
正解：A,B,C,D
解説: (Topexam メンバーにのみ表示されます)

質問 7：
Which of the following statements is true for Alibaba Cloud RDS?
A. Databases with the same name are allowed to be hosted on the same instance.
B. Physical host CPU and memory resources are not shared among the common type of RDS instances.
C. All editions of RDS support HA mode.
D. Multiple databases can be created for one instance.
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 8：
Alibaba Cloud OSS is a cloud storage service that features massive capacity, outstanding security, low cost, and high reliability. OSS uses multiple copies of data to achieve data redundancy and can restore interrupted OSS services within two minutes when hardware failure occurs.
A. FALSE
B. TRUE
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 9：
The maximum number of connections for an RDS instance depends on ____________.
A. CPU utilization rate
B. Network traffic
C. Disk capacity
D. Memory size
正解：D
解説: (Topexam メンバーにのみ表示されます)