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CompTIA Cloud+ CV0-002 Exam: Virtual Machine Performance Tuning    
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Topics:     - Host and Guest Resource Allocation     - Optimizing Performance          The efficient running of a virtual machine guest results not only from proper and well-thought-out virtual machine configurations, but also from the hypervisor’s configuration settings.     Virtual machines must have the appropriate resources to function correctly while not using excessive resources that can be better used by other virtual machines. In some cases, adding more virtual machines (scaling out, horizontally) or removing virtual machines (scaling in) in response to application requests... Show more
CompTIA Cloud+ CV0-002 Exam: Virtual Machine Performance Tuning    
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25 Questions

1. Your cloud-based web application has recently experienced usage spikes. Additional web servers are needed to handle these demands. What should you do?
2. A web application is experiencing slow performance when running back-end database queries. Which configuration would most likely improve query performance?
3. You plan to use a Linux virtual machine guest to conduct wireless network penetration tests. The virtual NICs will not support this functionality. The hypervisor has a supported USB adapter plugged in. What should you do?
4. Users in your company use a web portal in a private cloud to deploy new virtual machines. The underlying resource usage for all virtual machines is logged, but users are not prevented from creating new virtual machines. What type of configuration logs this type of data?
5. Host DNS records for devices no longer on the network still exist in DNS. Which option should you enable to remove stale DNS entries?
6. Which of the following items normally have a large influence on cloud-based web application performance?
7. Which capacity setting ensures a guaranteed amount of resources for a hypervisor?
8. Which type of quota, when reached, prevents additional resource use?
9. Your company IT director asks you to check into running the company’s public website in a public cloud provider environment. Uptime is of the utmost importance. Which document should you refer to?
10. You need to archive six virtual machines that were used for product development. The total consumed disk space is 3TB. What should you do to minimize consumed archival disk space?
11. Which term describes child artifacts left behind by software that did not properly clean up after itself?
12. Which configuration ensures continued SAN connectivity in the event of an HBA failure?
13. Which term describes the total number of routers and switches a packet passes through to reach its destination?
14. Which configuration separates physical compute resources into groups for higher-level management?
15. Which PowerShell command retrieves log information from a remote computer named Charlee1?
16. Your cloud load balancer has recently experienced excessive requests for a web application. What should you do to ensure the capacity exists to handle peak requests?
17. What is wrong with the following PowerShell code?
18. Which term describes the timeframe where a CPU cannot perform computations because it is waiting for I/O operations?
19. You need to ensure VoIP traffic is sent over the network before other types of traffic. What should you configure?
20. Which Microsoft tool provides hypervisor and virtual machine management capabilities?
21. A web server administrator has changed the listening port from 80 to 81 to increase security and restarted the web server daemon. External traffic must be able to reach the server. What is the next task that should be performed by the web server administrator?
22. You plan to use a cloud provider CLI to automate monthly management tasks. What is the first thing you should do prior to running these tasks?
23. Adan has configured an isolated network infrastructure for a private cloud. After starting multiple hypervisors on the network for the first time, he notices unacceptable network latency for one specific hypervisor. What is the most likely cause of the problem?
24. Which hypervisor component communicates to the hypervisor to reclaim memory inside a virtual machine guest?
25. What does the following PowerShell code accomplish?

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