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CompTIA CV0-004 PDF Cram Exam | New CV0-004 Test Blueprint
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CompTIA Cloud+ (2024) Sample Questions (Q228-Q233):
NEW QUESTION # 228
A cloud engineer has provisioned a VM for a high-frequency trading application. After the VM is put into production, users report high latency in trades. The engineer checks the last six hours of VM metrics and sees the following:
* CPU utilization is between 30% to 60%.
* Networkln is between 50Kbps and 70Kbps.
* NetworkOut is between 3.000Kpbs and 5.000Kbps.
* DiskReadOps is at 30.
* DiskWriteOps is at 70
* Memory utilization is between 50% and 70%.
Which of the following steps should the engineer take next to solve the latency issue?
- A. Modify the disk IOPS to a higher value as the disk IO is being bottlenecked at 100 IOPS.
- B. Move to a network-optimized instance type as the network throughput is not enough.
- C. Increase the instance size to allocate more vCPUs as the CPU utilization is very high.
- D. Increase the memory of the instance as the high-frequency trading application requires more RAM.
Answer: B
Explanation:
Since the NetworkOut is significantly higher than NetworkIn and considering the nature of a high-frequency trading application, the issue most likely lies with network throughput. Moving to a network-optimized instance type would provide higher network bandwidth, which can reduce latency in trades.References: This solution is derived from the Management and Technical Operations domain of the CompTIA Cloud+ objectives, focusing on performance optimization for cloud services.
NEW QUESTION # 229
A software engineer needs to transfer data over the internet using programmatic access while also being able to query the data. Which of the following will best help the engineer to complete this task?
- A. Web sockets
- B. RPC
- C. GraphQL
- D. SQL
Answer: C
Explanation:
GraphQL is the best option for transferring data over the internet with programmatic access and querying capabilities. It is a query language for APIs and a runtime for executing those queries with existing data, providing a more efficient, powerful, and flexible alternative to the REST API.References: Data transfer and querying methods are part of the technical knowledge associated with cloud computing, as included in CompTIA Cloud+.
NEW QUESTION # 230
Which of the following describes the main difference between public and private container repositories?
- A. Private container repositories are used to obfuscate the content of the Dockerfile, while public container repositories allow for Dockerfile inspection.
- B. Private container repositories are hidden by default and containers must be directly referenced, while public container repositories allow browsing of container images.
- C. Private container repository access requires authorization, while public repository access does not require authorization.
- D. Private container repositories must use proprietary licenses, while public container repositories must have open-source licenses.
Answer: C
Explanation:
The main difference between public and private container repositories lies in access control. Public repositories allow users to download and use container images without requiring any authorization, making them accessible to anyone. On the other hand, private repositories require users to have proper authorization, usually through credentials, to access the container images, thus providing a level of privacy and security control. Reference: CompTIA Cloud+ Guide to Cloud Computing (ISBN: 978-1-64274-282-2)
NEW QUESTION # 231
A systems administrator needs to implement a security control that will prevent unknown malware from infecting a system in case the antivirus solution fails. Which of the following should the administrator implement?
- A. Hardened baselines
- B. A software whitelist
- C. A host-based IDS
- D. File integrity monitoring
Answer: B
Explanation:
Application whitelisting is the practice of specifying an index of approved software applications or executable files that are permitted to be present and active on a computer system.
The goal of whitelisting is to protect computers and networks from potentially harmful applications.
NEW QUESTION # 232
A cloud developer is creating a static website that customers will be accessing globally. Which of the following services will help reduce latency?
- A. Application load balancer
- B. CDN
- C. API gateway
- D. VPC
Answer: B
Explanation:
A Content Delivery Network (CDN) is the service that will help reduce latency for a static website accessed globally. CDNs distribute content across multiple geographically dispersed servers, allowing users to connect to a server that is closer to them, thereby reducing the time it takes to load the website.
Reference: The use of CDNs is a common practice to enhance global access and improve user experience, as covered under Cloud Concepts in the CompTIA Cloud+ certification.
NEW QUESTION # 233
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