EMT Practice Test

1. Question Content...

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Question1: Which of the following scenarios is applicable to use RDS read-only instances?

Question2: Which of the following statements about file uploading to OSS strategy is not correct?

Question3: In which of the following cases would you need to apply an ICP license? (Choose three.)

Question4: A/Anis a copy of data on a disk at a certain point in time.

Question5: Which of the following statements is true for RDS?

Question6: You can retrieve data directly from an ECS Image and use it right away.

Question7: 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.)

Question8: 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?

Question9: 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?

Question10: Which of the followings are not the operations that you can do on a cloud disk snapshot? (Choose two.)

Question11: Alibaba Cloud relational database service (RDS) is a stable, reliable and elastic online database service. RDS supports below database types? (Choose three.)

Question12: 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?

Question13: Which of the following is not the database type supported by RDS?

Question14: Which three of the following statements about domain name binding to your OSS bucket are correct? (Choose three.)

Question15: 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?

Question16: A company uses Alibaba Cloud SLB and Auto Scaling at the same time, hoping this combination can help save O&M cost and provide a stable and reliable system.
However, because they do not have relevant experience, the company's engineers listed some precautions based on their understanding, and turned the list to you for advice.
As an expert of Alibaba Cloud, you tell them only________is correct.

Question17: Alibaba Cloud's object storage (Object Storage Service, OSS for short) can be used to store massive amount of files, but there is still a maximum number of files in a single bucket.

Question18: Alibaba Cloud CDN can directly accelerate the access to the files stored in OSS and reduce OSS traffic costs.

Question19: 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.)

Question20: Which 2 OSS object types can be configured as parameter for object lifecycle management? (Choose two.)

Question21: 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.)

Question22: Which of the following statements is wrong when comparing RDS with self-built database?

Question23: When we talk about the 'Elastic' feature for ECS product, we are not talking about.

Question24: Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. Which of the following application scenarios are suitable for Auto Scaling?
(Choose three.)

Question25: Alibaba Cloud does not support Intranet communication between products that are not in the same region, which does not mean?

Question26: Alibaba Cloud Object Storage Service (OSS) is a massive, highly available, secured and cost effective storage service. One of the special characteristics of OSS is its superior data reliability, because of its underlying backup technology and policies. Which of the following statement about OSS backup is correct?

Question27: Alibaba Cloud provides anti-DDoS products of different levels. If the service availability needs to be kept at
99.9% or higher under DDoS attacks, which of the following is the MOST suitable product?

Question28: Alibaba Cloud China Connect is a service that can help international companies do business in China. Which of the following services is not included in China Connect?

Question29: Which of the following ECS instance configurations can't be changed if we don't change instance type?

Question30: You canan ECS instance's configuration. (Choose two.)

Question31: What is the full name of ECS?

Question32: 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?