FREE PDF 2025 ACA-CLOUD1: RELIABLE ACA CLOUD COMPUTING ASSOCIATE LATEST LEARNING MATERIAL

Free PDF 2025 ACA-Cloud1: Reliable ACA Cloud Computing Associate Latest Learning Material

Free PDF 2025 ACA-Cloud1: Reliable ACA Cloud Computing Associate Latest Learning Material

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The ACA-Cloud1 exam is an online exam that is conducted by Alibaba Cloud. ACA-Cloud1 exam consists of 50 multiple-choice questions that are to be completed within 90 minutes. ACA-Cloud1 Exam is available in both English and Chinese languages. The passing score for the ACA-Cloud1 exam is 60%, and the exam fee is USD 120.

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Alibaba Cloud ACA Cloud Computing Associate Sample Questions (Q37-Q42):

NEW QUESTION # 37
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?

  • A. Pictures on server
  • B. Confidential files on the server
  • C. Database
  • D. Web application

Answer: C

Explanation:
Explanation
SQL injection is a common application layer attack that targets the database of a web application. SQL injection exploits a security vulnerability in the application's software, such as incorrect filtering of user input, that allows an attacker to send malicious SQL statements to the database. These statements can then be executed to steal, modify, or delete data, or even execute commands on the server1. SQL injection can also bypass authentication and authorization mechanisms, and sometimes even impersonate or damage the underlying system2. SQL injection is one of the most common and dangerous web attacks, and it can cause serious damage to the confidentiality, integrity, and availability of web applications3. References: 1: SQL Injection - OWASP2: SQL Injection - Web Application Firewall - Alibaba Cloud Documentation Center3: Web Application Firewall:What is WAF? - Alibaba Cloud.


NEW QUESTION # 38
A video streaming company uses SLB to distribute user requests to 30 ECS instances (the 30 ECS instances have the same configuration). Yet, the company finds that the service traffic soars dramatically every night from 20:00 to 02:00. According to their calculation, the evening traffic is 100% higher than the traffic in other periods of time. To properly respond to user requests, which of the following methods is most preferred from the perspective of cost and implementation simplicity?

  • A. Manually create 30 ECS instances using the custom image, and then add them to SLB every night before 20:00 and remove them after 02:00.
  • B. Configure Auto Scaling appropriately to automatically add or reduce ECS instances.
  • C. Create 30 ECS instances based on the custom image and add them to SLB. Then, configure weights for these ECS instances to respond to user requests every night from 20:00 to 02:00, and reset those weights to zero for other periods of time.
  • D. Configure Auto Scaling appropriately to automatically upgrade/downgrade the ECS instances.

Answer: B

Explanation:
Reference:
https://www.alibabacloud.com/product/auto-scaling


NEW QUESTION # 39
In which of the following cases would you need to apply an ICP license? (Choose three.)

  • A. Open your office in China
  • B. Launch your online shop in China
  • C. Accelerate your Overseas Website in China
  • D. Launch your website in China

Answer: A,B,D


NEW QUESTION # 40
www.company.com is a newly launched social portal for exchanging automotive information. The portal is based on PHP, including 10GB of images, and some JavaScripts files. Currently one single ECS instance is used to host all the application content as well as a MySQL database. With the growing number of users, the portal is getting slower to load images or respond to user requests. Moreover, there will be additional 50GB image content uploaded to the portal every week. Which combination of Alibaba Cloud services below can help resolve the storage and performance issue at the same time?

  • A. OSS + ECS combination
  • B. OSS + MTS combination
  • C. OSS + RDS combination
  • D. OSS + CDN combination

Answer: D

Explanation:
Explanation
Object Storage Service (OSS) is a cloud storage service that provides secure, cost-effective, and scalable storage for various data types, such as images, videos, and documents. OSS can store large amounts of data and support concurrent access from multiple users. OSS can also integrate with other Alibaba Cloud services, such as Media Transcoding Service (MTS), Server Load Balancer (SLB), and Elastic Compute Service (ECS).
By using OSS, the portal can offload the storage and delivery of the image content from the ECS instance, which can improve the performance and availability of the application.
Content Delivery Network (CDN) is a distributed network that delivers content to users based on their geographic locations, the origin servers, and the content delivery policies. CDN can accelerate the delivery of static and dynamic content, such as images, videos, and web pages, by caching the content at edge nodes that are closer to the users. CDN can also reduce the network latency and bandwidth consumption, as well as enhance the security and reliability of the content delivery. By using CDN, the portal can speed up the loading of images and improve the user experience.
Therefore, the combination of OSS and CDN can help resolve the storage and performance issue of the portal at the same time. The other combinations are not as effective or suitable for the portal's scenario. OSS + MTS combination can help with the storage and transcoding of media files, but not with the delivery of images. OSS
+ RDS combination can help with the storage and management of relational databases, but not with the loading of images. OSS + ECS combination can help with the storage and computing of data, but not with the acceleration of content delivery.
References:
Alibaba Cloud Object Storage Service
Alibaba Cloud Content Delivery Network
ACA Cloud Computing Certification Exam Preparation Course


NEW QUESTION # 41
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. Anti-DDoS Service Pro
  • C. Anti-DDoS Service Basic
  • D. Situation Awareness

Answer: C

Explanation:
Reference:
https://www.alibabacloud.com/product/anti-ddos


NEW QUESTION # 42
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