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The Alibaba Cloud Associate (ACA) Security certification, commonly known as ACA Security certification, is the associate-level Alibaba Cloud Security Certification. It covers all of Alibaba Cloud′s security products such as WAF, Security Center, Anti-DDoS, etc.  

Alibaba Cloud Certification Associate (ACA - Alibaba Cloud Certification Associate) is a certification technical designed for personnel who can use Alibaba Cloud Computing and Security products. It covers Alibaba Cloud's core products from computing, storage, networking to security. This certification assesses the certificate holders' possession of the following capabilities:

1. Has general knowledge in Operating System, Cloud Computing and TCP/IP protocols.

2. Able to develop simple solutions and enterprise best practices based on Alibaba Cloud's security products and business needs.

3. Knowledge in the use and operation of Alibaba Cloud's ECS, VPC, Cloud Monitor, and Alibaba Cloud Security products like WAF, Security Center, Anti-DDoS basic and Premium, etc.

This certification exam is not for Alibaba Cloud absolute beginners, prior Alibaba Cloud experience is required. Doing the ACA Cloud Computing Certification before the Security one is highly recommended, since it covers all core products of Alibaba Cloud and gives you a very good overview of the platform. 

Which of the following application vulnerabilities are not as popular as others?

A. SQL Injection

B. XSS exploit

C. File uploading vulnerability

D. Kernel privilege breaking

In a regular server maintenance operation, the purpose of installing a patch on the operating system is?

A. To improve server resource usage

B. to improve system usability

C. to enhance system functionality

D. to avoid existing system vulnerabilities being used by some hackers

Which of the following statements is NOT true about web application security protection best practices?

A. enforce security management to any public service

B. keep installing official released patches will be good enough

C. keep monitoring system processes , performance and status

D. always scan input by user through web application

Which of the following function is provided by 'server guard' patch management service?

A. fix vulnerability found in open source software using Alibaba self-developedpatch

B. detect any vulnerability before it bursts

C. release official patches for any exposed vulnerability

D. stop hacker's vulnerabilities probing

Which of the following function is NOT provided by 'Server Guard' vulnerability detection?

A. Trojan detection

B. weak password detection

C. sensitive data encryption

D. Linux system vulnerability scanning

Which of the following statements is the possible reason that might lead to system vulnerabilities?

A. software logic flaw or mistakes made during software development cycle

B. hardware devices are not up to date

C. system administrator didn't follow the operation manual exactly

D. The proprietary software that is safer than open source one should beinstalled