QUESTION 45
Company 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.

QUESTION 46
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.)

QUESTION 47
Server Load Balancer supports protocols like ______________. (Choose four.)

QUESTION 48
Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. It supports adding existing ECS instances into the scaling group, whose status however must be _________.

QUESTION 49
Alibaba Cloud relational database service (RDS) is a stable, reliable and elastic online database service. RDS supports below database types ? (Choose three.)

QUESTION 50
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?

QUESTION 51
What is the full name of ECS?

QUESTION 52
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.)

QUESTION 53
A/Anis a copy of data on a disk at a certain point in time.

QUESTION 54
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?

QUESTION 55
Which of the followings are not the operations that you can do on a cloud disk snapshot? (Choose two.)

QUESTION 56
Alibaba Cloud does not support Intranet communication between products that are not in the same region, which does not mean?

QUESTION 57
In which of the following cases would you need to apply an ICP license? (Choose three.)

QUESTION 58
Which of the following ECS instance configurations can’t be changed if we don’t change instance type?

QUESTION 59
If you are running an online ticket booking service with relatively fixed traffic, then which kind of charging mode is more suitable for you?