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NEW QUESTION 31
Multiple lower-configuration I/O-optimized ECS instances can be used withto deliver a high- availability architecture.
- A. OSS
- B. Auto Scaling
- C. Server Load Balancer
- D. RDS
Answer: C
NEW QUESTION 32
You are developing a highly available web application using stateless web servers. Which services are suitable for the application? (Choose three.)
- A. ECS
- B. SLB
- C. OSS
- D. RDS
- E. MaxCompute
Answer: A,C,D
NEW QUESTION 33
Server Load Balancer supports health checks for ECS instances and allows user to specify the frequency. If an ECS instance does not qualify the health check, traffic will not be forwarded to that instance, thereby ensuring application availability.
- A. FALSE
- B. TRUE
Answer: A
Explanation:
Explanation
NEW QUESTION 34
A/An _________________ is a copy of data on a disk at a certain point in time.
- A. image
- B. template
- C. snapshot
- D. EIP
Answer: C
NEW QUESTION 35
Company A builds a sales management platform based on Alibaba Cloud services, using 3 ECS instances. One of the ECS instance has MySQL installed as the database server of the platform, the other two are used as WEB servers. After some time, due to the rapid increase of employees and sales analysis requests, the performance of the platform is challenged in terms of response time. Through CloudMonitor, it is found that the average CPU usage reaches 70% for the two WEB server ECS instances and the database load reaches 75% for the database server ECS instance. In this situation, company A may choose which Alibaba Cloud services to improve the performance . (Choose two.)
- A. Use content delivery network, CDN, to accelerate the caching of the platform's css, JavaScript files etc.
- B. By adding a SLB instance and increase the number of ECS instances to reduce the work load on current ECS instances.
- C. Import data into OSS to share the storage load of the platform.
- D. Use RDS to replace existing self-built database, in order to obtain better database performance; also creating RDS read-only instances to handle read-only requests, hence reduce the work load on master RDS instance.
Answer: B,D
NEW QUESTION 36
Server Load Balancer supports health checks for ECS instances and allows user to specify the frequency. If an ECS instance does not qualify the health check, traffic will not be forwarded to that instance, thereby ensuring application availability.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 37
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. Prepaid
- B. Pay-As-You-Go
- C. Paypal-pay
- D. bitcoin-pay
Answer: B
NEW QUESTION 38
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. Databases
- C. large-traffic apps
- D. simple web applications
- E. no limited online storage
Answer: A,B,C,D
NEW QUESTION 39
Server Load Balancer can manage sudden spikes in traffic, minimize response time and maintain 99.99% availability of your web application.
- A. FALSE
- B. TRUE
Answer: B
Explanation:
Manage sudden spikes in traffic, minimize response time and maintain 99.99% availability of your web application with Server Load Balancer.
Reference:
https://arcelon.co.id/product/server_load_balancer.php
NEW QUESTION 40
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.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 41
Which of the following statements is true for RDS?
- A. Databases with the same name are allowed in the same instance.
- B. None of the above is true.
- C. Resources are not shared among the databases in the same RDS instance.
- D. Multiple databases can be created in one RDS instance.
Answer: D
NEW QUESTION 42
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. Look for answers in Alibaba Cloud forum.
- C. You cannot obtain any help from Alibaba Cloud.
- D. Open a ticket to Alibaba Cloud help desk.
Answer: A,B,D
NEW QUESTION 43
When we talk about the 'Elastic' feature for ECS product, we are not talking about.
- A. Elastic Storage
- B. Elastic Computing
- C. Elastic Network
- D. Elastic Administration
Answer: D
NEW QUESTION 44
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. FALSE
- B. TRUE
Answer: B
NEW QUESTION 45
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. VPC
- B. Auto Scaling
- C. RDS
- D. Server Load Balancer
Answer: B
Explanation:
Reference:
https://www.alibabacloud.com/blog/designing-a-cloud-based-architecture-for-internet-of-vehicles- iov-series-ii_594263
NEW QUESTION 46
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. VPC
- B. Auto Scaling
- C. RDS
- D. Server Load Balancer
Answer: B
NEW QUESTION 47
You canan ECS instance's configuration. (Choose two.)
- A. downgraded
- B. uploaded
- C. downloaded
- D. upgraded
Answer: A,D
NEW QUESTION 48
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