2023年最新のACA-Cloud1問題集PDFでACA-Cloud1リアル試験問題解答
有効なACA-Cloud1テスト解答とAlibaba Cloud ACA-Cloud1試験PDF問題を試そう
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質問 # 15
You built an online shop using Alibaba Cloud services (ECS, RDS, ...etc.) and very soon you'll have a campaign that every customer that invites 3 friends will get a 50% off coupon. To avoid HTTP flood attacks and ensure only genuine customers (not bots) joining the event, which security product should you choose?
- A. WAF
- B. Server Guard
- C. Anti-DDoS pro
- D. Anti-DDoS Basic
正解：A
解説：
Explanation
After adding your website to the WAF protection list, you can enable HTTP Flood protection and select an appropriate protection mode for the website
質問 # 16
Which of the following scenarios is applicable to use RDS read-only instances?
- A. Improves RDS storage capabilities.
- B. Reduces the read pressure on the RDS primary instance.
- C. Implements data backtracking for the last two days.
- D. Reduces the write pressure on the RDS primary instance.
正解：B
質問 # 17
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. The instance and the scaling group must be in the same region but not necessarily the same zone.
- B. The instance and the scaling group can be in different regions and zones.
- C. 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.
- D. The instance and the scaling group must be in the same region and zone.
正解：D
質問 # 18
Some applications may encounter large traffic fluctuations within a short period. When ECS is used with
, the number of ECS instances is automatically adjusted based on traffic.
- A. Auto Scaling
- B. Server Load Balancer
- C. RDS
- D. OSS
正解：A
解説：
Reference:
https://www.alibabacloud.com/help/doc-detail/25371.htm
質問 # 19
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
正解：B
解説：
Explanation
Manage sudden spikes in traffic, minimize response time and maintain 99.99% availability of your web application with Server Load Balancer.
質問 # 20
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?
- A. Managed Security Service
- B. Situation Awareness
- C. Anti-DDoS Service Basic
- D. Anti-DDoS Service Pro
正解：C
質問 # 21
Server Load Balancer supports protocols like. (Choose four.)
- A. MPLS
- B. MQTT
- C. TCP
- D. HTTPS
- E. UDP
- F. HTTP
正解：C、D、E、F
解説：
Explanation
Comprehensive protocol support - ICMP, TCP, UDP, HTTP, HTTPS,
質問 # 22
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?
- A. Managed Security Service
- B. Situation Awareness
- C. Anti-DDoS Service Basic
- D. Anti-DDoS Service Pro
正解：C
解説：
Explanation
Explanation/Reference: https://www.alibabacloud.com/product/anti-ddos
質問 # 23
An enterprise hosts their servers (include both Linux and Windows servers) in a traditional IDC. Every night hackers with IP addresses from many countries try to crack the password of their servers, making the administrator terribly worried about this. However, because of work requirements, the remote management port of these servers must be opened to public network.
The administrator heard that Alibaba Cloud has solutions that can help customers improve the security of their systems. Therefore, he/she wants to migrate the system to Alibaba Cloud. Which of the following functions should the administrator activate in Alibaba Cloud to reduce the possibility of brute force password cracking?
- A. CloudMonitor
- B. Anti-DDoS Basic Service
- C. Server Guard
- D. Situation Awareness
正解：C
解説：
Explanation/Reference: https://www.alibabacloud.com/blog/blogblogalibaba-cloud-server-guard-a-comprehensive- assessment_284390
質問 # 24
Which 2 OSS object types can be configured as parameter for object lifecycle management? (Choose two.)
- A. Infrequent access
- B. Chunk
- C. Snapshot
- D. Archive
正解：A、D
質問 # 25
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. Import data into OSS to share the storage load of the platform.
- B. By adding a SLB instance and increase the number of ECS instances to reduce the work load on current ECS instances.
- C. Use content delivery network, CDN, to accelerate the caching of the platform's css, JavaScript files etc.
- 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.
正解：B、D
質問 # 26
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. Auto Scaling
- B. Server Load Balancer
- C. VPC
- D. RDS
正解：A
解説：
Reference:
https://www.alibabacloud.com/blog/designing-a-cloud-based-architecture-for-internet-of-vehicles- iov-series-ii_594263
質問 # 27
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.)
- A. You need to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be reduced automatically to save costs when business needs drop.
- B. You need to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be added seamlessly to address traffic peaks and surges.
- C. You want to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be automatically upgraded (with more Memory, more powerful CPU) when needed.
- D. When an ECS instance reacts abnormally in a scaling group, Auto Scaling will create a new ECS instance to take over the computing tasks conducted by the faulty instance.
正解：A、B、D
質問 # 28
Alibaba Cloud does not support Intranet communication between products that are not in the same region, which does not mean?
- A. Server Load Balancer can be deployed for ECS instances in various regions.
- B. Server Load Balancer cannot be deployed for ECS instances in various regions.
- C. ECS instances and other products in different regions, such as ApsaraDB for RDS and OSS instances, cannot communicate with each other on the intranet.
- D. ECS instances in different regions cannot communicate with each other on the intranet.
正解：C
質問 # 29
Which of the following statements is true for RDS?
- A. None of the above is true.
- B. Multiple databases can be created in one RDS instance.
- C. Resources are not shared among the databases in the same RDS instance.
- D. Databases with the same name are allowed in the same instance.
正解：B
解説：
Explanation/Reference: https://www.alibabacloud.com/help/doc-detail/26092.htm
質問 # 30
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?
- A. The main purpose of DDoS attack is to make the target server unable to provide service normally, which is one of the network attacks that are most difficult to defend.
- B. The purpose of DDoS attack is to steal confidential information.
- C. The main target for DDoS attack is the database.
- D. DDoS attack will try to crack the password through a large number of attempts.
正解：A
質問 # 31
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. Auto Scaling
- B. Server Load Balancer
- C. VPC
- D. RDS
正解：A
解説：
Explanation/Reference: https://www.alibabacloud.com/blog/designing-a-cloud-based-architecture-for-internet-of-vehicles- iov-series-ii_594263
質問 # 32
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. no limited online storage
- B. Official corporate websites
- C. Databases
- D. large-traffic apps
- E. simple web applications
正解：B、C、D、E
質問 # 33
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Alibaba Cloud ACA-Cloud1（ACA Cloud Computing Associate）認定試験は、クラウドコンピューティングのスキルや知識を検証するためにAlibaba Cloudが提供するプロフェッショナル認定資格です。この認定試験は、クラウドコンピューティングに関心がある個人で、この分野でのスキルや知識を開発したい方を対象としています。
ACA-Cloud1試験問題集でPDF問題とテストエンジン：https://www.jpntest.com/shiken/ACA-Cloud1-mondaishu