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NEW QUESTION 14
Object Storage Service (OSS) supports access logging. A bucket owner can activate access logging for their buckets in the OSS management console. When access logging is activated for bucket A, OSS automatically accesses the request logs for this bucket (in hours) and generates and writes an object to the user-specified bucket B according to certain naming rules. Which of the following
statements is true for OSS logging?
- A. Buckets A and B can be separate buckets (or a single bucket) but they must belong to the same user
- B. Buckets A and B can belong to different users.
- C. Buckets A and B must be different buckets.
- D. Buckets A and B must be the same bucket.
Answer: A
NEW QUESTION 15
Alibaba Cloud SLB can distribute user requests to backend ECS instances. These ECS instances must have the same specification (CPU, Memory)
- A. False
- B. True
Answer: B
NEW QUESTION 16
OSS supports multi-part uploading for large files, namely dividing a large file into multiple parts and uploading them in order. This function is suitable for scenarios such as uploading large files or uploading files with poor connectivity.
After completing all the multi-part uploading tasks, if you forget to invoke the "Complete Multipart Upload" interface, there will be fragment files left in OSS, occupying bucket storage space-To facilitate deleting those files, OSS provides the________function.
- A. Bucket clearing
- B. Fragment management
- C. OpenAPI batch deletion
- D. Online batch deletion
Answer: D
NEW QUESTION 17
The daily PV volume of a community website is as high as 20 million. The applications of the website are deployed on ECS instances while logs are stored on the data disks of a single ECS instance.
Now, the website wants to extend the log retention period to 24 months and ensure that logs can be quickly downloaded when needed. The current data disks they have can only help retain three months of logs In this case, ________ is the ideal solution for solving the log retention issue.
- A. OSS
- B. CDN
- C. Container Service
- D. ApsaraDB for RDS
Answer: B
NEW QUESTION 18
All RDS for MySQL backups are full backups.
- A. False
- B. True
Answer: B
NEW QUESTION 19
Object Storage Service (OSS) supports sub accounts, and you can allocate access permissions to different buckets for each sub account.
- A. True
- B. False
Answer: B
NEW QUESTION 20
Alibaba Cloud CloudMonitor is a service that monitors Alibaba Cloud resources and Internet functions currently provided by CloudMonitor? (Number of correct answers: 3)
- A. Cloud service monitoring
- B. Customized monitoring
- C. Operation auditing
- D. Site monitoring
- E. Custom firewall
Answer: A,B,D
Explanation:
https://cloudacademy.com/course/alibaba-security-monitoring-1275/introduction-to-cloud-monitor/#:~:text=Cloud%20Monitor%20is%20a%20service,safeguard%20your%20products%20and%20business.
NEW QUESTION 21
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?
- A. Each scaling group can span up to two regions. After adding the ECS instance, the number of regions of all the ECS instances in the scaling group must be no greater than two.
- B. The instance and the scaling group must be in the same region and zone.
- C. The instance and the scaling group must be in the same region but not necessarily the same zone.
- D. The instance and the scaling group can be in different regions and zones.
Answer: C
NEW QUESTION 22
SLB is a load balancing service that distributes traffic to multiple cloud servers It provides a wide range of functions to meet the needs of various business scenarios If a user wants to use SLB and ECS instances to deploy two-way authenticated HTTPS websites, the following statement is correct_______.
- A. You need to host server SSL certificates and client CA certificates on SLB
- B. SLB can only support HTTPS one-way authentication
- C. SLB can only host SSL certificates, not CA certificates.
- D. SLB can only host CA certificates, not SSL certificate
Answer: B
NEW QUESTION 23
Which of the following statements is most accurate about the Data Transmission Service (DTS) database migration function?
- A. Supports warning when source and destination has some unresolved conflict found.
- B. Supports migrating MySQL databases from external sources.
- C. Supports database schema replication between instances.
- D. Supports all of the above functions.
Answer: C
NEW QUESTION 24
Many websites have suffered DDoS attacks of different volumes. Therefore, accurate understanding of DDoS attacks is critical to website security protection. Which of the following statements about DDoS attacks is the MOST accurate?
- A. A DDoS attacks crack the server's logon password by means of a massive number of attempts.
- B. The purpose of a DDoS attack is to steal confidential information.
- C. DDoS attacks primarily target databases.
- D. The main purpose of a DDoS attack is to prevent the target server from providing normal services. Currently, the DDoS attack is one of the strongest and most indefensible website attacks.
Answer: D
NEW QUESTION 25
A company launched its online service just a year ago. It uses five ECS instances and does not have a full-time system administrator Over the last six months, the company's system has encountered various security problems Several high-risk vulnerabilities were exploited by hackers, leading to leakage of the company's confidential dat
a. Which of the following Alibaba Cloud products can be used to quickly resolve this problem?
- A. Anti-DDoS Pro Service
- B. Managed Security Service
- C. Security Center
- D. Cloud Firewall
Answer: D
NEW QUESTION 26
Names of the files in each OSS bucket must be unique Also, they can be renamed.
- A. True
- B. False
Answer: B
NEW QUESTION 27
Alibaba Cloud Content Delivery Network (CDN) performs content acceleration with the support of intelligent DNS resolution The following function_________is NOT included in intelligent DNS resolution.
- A. If a user activates mirror sites in different IDCs, intelligent DNS resolution can achieve load balancing by guiding customers in different places to different mirror sites.
- B. The intelligent DNS resolution supports web page content caching. A user will receive data from the origin site at first-time access, and then will be reading data from cache in subsequent requests
- C. A user request is directed to the server nearest to the customer based on location information of the pre-configured IP section.
- D. The intelligent DNS resolution can parse the same domain name into different IP addresses based on the IP of different visitors.
Answer: A
NEW QUESTION 28
After creating an RDS for MySQL read-only instance, which of the following CAN NOT be performed by the read-only instance in RDS management console?
- A. Parameter configuration
- B. Specification change
- C. Intranet/Internet switchover
- D. SQL log auditing
Answer: A
NEW QUESTION 29
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 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. Based on SLB's working mechanism, approximately 20% of loads will be assigned to ecs_inst1
- B. 100% of loads will be assigned to ecs__inst1, and the remaining 4 ECS instances will stay idle
- C. Based on request level parameters of external requests, all requests with a request level parameter of 100 will be transferred to ecs_inst1
- D. We do not know the weight settings of the remaining 4 ECS instances, so we cannot tell what would happen
Answer: D
NEW QUESTION 30
A new media company uses a mobile app to provide news and information services. They utilize Auto Scaling to add/reduce ECS instances dynamically to address service traffic spikes.
Based on the estimation of their service and technical personnel the company thinks they require 10 ECS instances during idle hours and 10 to 20 ECS instances (dynamically adjusted) during some busy hours, which are normally from 07:30 to 09:00 and from 18:30 to 20:00 In the scaling group; they set the "Minimum number of instances" to 10 and "Maximum number of instances" to 20.
To simplify deployment tasks and save costs, which of the following scaling modes should they choose?
- A. Fixed quantity mode
- B. Event-triggered mode
- C. Healthy mode
- D. Scheduled mode
Answer: A
NEW QUESTION 31
Company A constructed a sales management platform using three Elastic Compute Service (ECS) instances. One of the instances runs MySQL, and is used as the database server. The other two instances are used as Web servers After some time, the number of employees in Company A dramatically increases, leading to higher sales volumes At the same time, the platform response speed is gradually decreasing too.
According to the report from CloudMonitor, the average CPU utilization rate of the two Web servers exceeds 70%, and database load reaches 75% Company A can select Alibaba Cloud_________ services.to cope with the issue and optimize the performance. (Number of correct answers: 2)
- A. Incorporate Server Load Balancer (SLB) and add additional ECS instances to relieve the load on existing ECS instances
- B. Replace the self-built MySQL database with ApsaraDB for RDS to obtain better database performance, and utilize RDS read-only instances to handle read-only requests
- C. Use Content Delivery Network (CDN) to enhance content loading speed
- D. Import database data into Object Storage Service (OSS) to share the storage pressure on the platform
Answer: A,B
NEW QUESTION 32
A startup video streaming company deploys its service on Alibaba Cloud Elastic Compute Service (ECS) Christmas is coming soon and the CEO knows that they need to prepare more computing resources However, they don't want to purchase a large number of Elastic Compute Service (ECS) instances tor a long period of time. Instead, they want to buy ECS instances for a short period of time and release them after the event is over. Which of the following billing methods of ECS is the most suitable?
- A. Pay-As-You-Go with Savings Plan
- B. Subscription with Reserved Instances
- C. Pay-As-You-Go with Reserved Instances
- D. Pay-As-You-Go Only
Answer: A
NEW QUESTION 33
Many cloud computing service providers support users to activate/create a cloud service through Open API. Which of the following protocols is most not likely to be supported by these Open API?
- A. HTTP
- B. Web Service
- C. Restful
- D. PPPoE
Answer: D
NEW QUESTION 34
The backend server pool of an Alibaba Cloud SLB contains multiple ECS instances, which may have different service capacities. To exploit the different service capacities of backend ECS instances, which of the following statements is correct?
- A. SLB cannot assign more requests to certain ECS instances.
- B. Choose Weighted Least-Connection mode, and ECS instances with higher capacities will surely be assigned with more requests.
- C. Choose Round-Robin model and ECS instances with higher capacities will surely be assigned with more requests.
- D. Choose Weighted Round Robin mode to set higher weights to ECS instances with higher capacities The higher the weight of the backend ECS instance the higher chance that the instance will receive requests.
Answer: D
NEW QUESTION 35
You are using Auto Scaling with one scaling group already created, then you want to execute a task at a specific time such as removing 1 ECS instance every night at 00:00. To achieve this, which of the following operations should be performed'? (Number of correct answers; 2)
- A. Create an event-triggered task.
- B. Create a scaling rule
- C. Create a scheduled task.
- D. Create a new scaling group.
Answer: D
NEW QUESTION 36
If an administrator often needs to manage multiple ECS instances in an Alibaba Cloud VPC through the Internet Which of the following solutions can meet this need at low costs and without affecting system security.
- A. Choose an ECS instance from VPC and make it as the bastion host And then, apply an EIP and bind it to this ECS instance. After that the administrator can manage other ECS instances through this bastion host.
- B. Bind an EIP to each of the ECS instances, and Jog on to each of these ECS instances to manage them.
- C. Modify the VPC Security Group policy, to allow access from the Internet.
- D. None of these answers are correct.
Answer: D
NEW QUESTION 37
You would like to deploy your applications on Alibaba Cloud to meet requirements including cost reduction, improving service availability, fast deployment- and redundant backup Alibaba Cloud_________products can help meet these requirements (Number of correct
answers 3)
- A. Reasonable selection of Regions/Zones meets the location needs of application deployment as well as the demands for redundantly backup critical business applications and data.
- B. Utilizing Content Delivery Network (CDN) can meet the demands for redundant backup.
- C. Utilizing Server Load Balancer (SLB) and ECS instances can improve data reliability.
- D. Elastic Compute Service (ECS) snapshot satisfies the needs of rapid recovery of applications and data.
- E. Elastic Compute Service (ECS) image achieve efficient and convenient deployment.
Answer: A,C,E
NEW QUESTION 38
A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group He/she sets the "Minimum number of instances" to 2 and "Maximum number of instances" to 7.
After correctly configuring scaling settings, the customer adds a scaling rule "Add 6 ECS instances", and creates a scheduled task based on this rule.
And then, the customer checks the scaling group and see it already contains 3 valid ECS instances, he/she then enables this scaling group immediately.
How many ECS instance will be added in the scaling group when the scheduled task is activated once'?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 39
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