ACA-Cloud1 : ACA Cloud Computing Certification Exam

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Alibaba
ACA-Cloud1
ACA Cloud Computing Certification Exam
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Question: 41
___________________ is a ready-to-use service that seamlessly integrates with Elastic Compute Service (ECS) to manage
varying traffic levels without manual intervention.
A. Server Load Balancer
B. OSS
C. RDS
D. VPC
Answer: A
Question: 42
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?
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.
Answer: A
Question: 43
When we talk about the ‘Elastic’ feature for ECS product, we are not talking about _____________.
A. Elastic Computing
B. Elastic Storage
C. Elastic Network
D. Elastic Administration
Answer: D
Question: 44
Your website has high volume of traffic and sudden spikes for a very short time. In this scenario, ______________ can manage
traffic peak efficiently and maintain a consistent user experience.
A. Server Load Balancer
B. Auto Scaling
C. RDS
D. VPC
Answer: B
Reference: https://www.alibabacloud.com/blog/designing-a-cloud-based-architecture-for-internet-of-vehicles-iov-series-
ii_594263
Question: 45
What is the full name of ECS?
A. Elastic Compute Service
B. Elastic Computing Server
C. Elastic Cost Server
D. Elastic Communication Server
Answer: A
Question: 46
Alibaba Cloud does not support Intranet communication between products that are not in the same region, which does not mean
______________?
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.
Answer: B
Reference: https://www.alibabacloud.com/help/doc-detail/40654.htm
Question: 47
If you are running an online ticket booking service with relatively fixed traffic, then which kind of charging mode is more suitable
for you?
A. Pay-As-You-Go
B. Prepaid
C. Paypal-pay
D. bitcoin-pay
Answer: A
Question: 48
Using a cloud computing service is simple and straightforward. One can choose the instance with desired specification, finish
payment and then use it right away. Moreover, the underlying physical machines are managed by cloud service providers and
transparent to users.
A. TRUE
B. FALSE
Answer: A
Question: 49
A/An _________________ is a copy of data on a disk at a certain point in time.
A. image
B. snapshot
C. template
D. EIP
Answer: B
Question: 50
Multiple lower-configuration I/O-optimized ECS instances can be used with ___________ to deliver a high-availability
architecture.
A. Server Load Balancer
B. RDS
C. Auto Scaling
D. OSS
Answer: A

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