CompTIA CV0-003 Exam
CompTIA Cloud+ Certification (Page 20 )

Updated On: 9-Feb-2026

A DevOps administrator is automating an existing software development workflow. The administrator wants to ensure that prior to any new code going into production, tests confirm the new code does not negatively impact existing automation activities. Which of the following testing techniques would be BEST to use?

  1. Usability testing
  2. Regression testing
  3. Vulnerability testing
  4. Penetration testing

Answer(s): B

Explanation:

B. Regression testing

Regression testing would be the best technique to use in this scenario. Regression testing is conducted to ensure that new code changes do not negatively impact the existing functionality or automation activities. It involves re-running test cases from a previously verified test suite to confirm that the new code has not introduced any bugs or issues in the previously working functionalities.


Reference:

https://www.guru99.com/regression-testing.html



Some VMs that are hosted on a dedicated host server have each been allocated with 32GB of memory. Some of VMs are not utilizing more than 30% of the allocation. Which of the following should be enabled to optimize the memory utilization?

  1. Auto-scaling of compute
  2. Oversubscription
  3. Dynamic memory allocations on guests
  4. Affinity rules in the hypervisor

Answer(s): C



A systems administrator would like to reduce the network delay between two servers. Which of the following will reduce the network delay without taxing other system resources?

  1. Decrease the MTU size on both servers.
  2. Adjust the CPU resources on both servers.
  3. Enable compression between the servers.
  4. Configure a VPN tunnel between the servers.

Answer(s): A

Explanation:

Compressed transmission needs compression and decompression processes before using the data. Reducing MTU size scales headers transmissions up, reduces transmission efficiency, but speeds up packet send/receive actions, not waiting for more data to fill the MTU. Extinguish a fire better with small buckets or big buckets? Throughput of reasonably small buckets is better.



An SQL injection vulnerability was reported on a web application, and the cloud platform team needs to mitigate the vulnerability while it is corrected by the development team. Which of the following controls will BEST mitigate the risk of exploitation?

  1. DLP
  2. HIDS
  3. NAC
  4. WAF

Answer(s): D

Explanation:

D. WAF (Web Application Firewall)

A WAF is the best control to mitigate the risk of SQL injection vulnerabilities while the development team fixes the issue. A WAF can identify and block SQL injection attacks by analyzing the traffic between the application and the user. It can also help to protect against other types of attacks that exploit web application vulnerabilities.


Reference:

https://www.netsparker.com/blog/web-security/sql-injection-vulnerability/



To save on licensing costs, the on-premises, IaaS-hosted databases need to be migrated to a public DBaaS solution. Which of the following would be the BEST technique?

  1. Live migration
  2. Physical-to-virtual
  3. Storage-level mirroring
  4. Database replication

Answer(s): D

Explanation:

D. Database replication

Database replication would be the best technique to migrate on-premises IaaS-hosted databases to a public DBaaS solution while saving on licensing costs. Database replication involves copying a database from one location to another, which can be done in near real-time. This allows the data to be continuously synchronized between the on-premises database and the public DBaaS solution, without disrupting operations or requiring a complete migration all at once. Additionally, database replication can be done with minimal downtime and minimal impact to the performance of the database.






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