Question # 1
Which of the following would allow a cloud engineer to flatten a deeply nested JSON log to improve readability for analysts?
| A. Grafana
| B. Kibana
| C. Elastic search
| D. Log stash
|
D. Log stash
Explanation:
Log stash can be used to flatten a deeply nested JSON log, which would improve readability for analysts. Log stash is a data processing pipeline that ingests data from various sources, transforms it, and then sends it to a "stash" like Elastic search.
References:
CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Cloud Data Management
Question # 2
A systems administrator needs to configure backups for the company's on-premises VM cluster. The storage used for backups will be constrained on free space until the company can implement cloud backups. Which of the following backup types will save the most space, assuming the frequency of backups is kept the same?
| A. Snapshot
| B. Ful
| C. Differential
| D. Incremental
|
D. Incremental
Explanation:
An incremental backup strategy saves space because it only backs up data that has changed since the last backup. Compared to full and differential backups, incremental backups aresmaller and save more space, which is essential when storage is constrained.
References: CompTIA Cloud+ Guide to Cloud Computing (ISBN: 978-1-64274-282-2)
Question # 3
Which of the following integration systems would best reduce unnecessary network traffic by allowing data to travel bidirectionally and facilitating real-time results for developers who need to display critical information within applications?
| A. REST API
| B. RPC
| C. GraphQL
| D. Web sockets
|
D. Web sockets
Explanation:
Web sockets provide a full-duplex communication channel over a single, long-lived connection, allowing data to flow bidirectionally between a client and a server. This is ideal for real-time applications where developers need to display critical information without unnecessary network overhead, as it reduces the need for repetitive HTTP requests and allows for more efficient, instantaneous data updates and interactions.
Question # 4
Servers in the hot site are clustered with the main site.
| A. Network traffic is balanced between the main site and hot site servers.
| B. Offline server backups are replicated hourly from the main site.
| C. All servers are replicated from the main site in an online status.
| D. Which of the following best describes a characteristic of a hot site?
|
C. All servers are replicated from the main site in an online status.
Explanation:
When servers in a hot site are clustered with the main site, it indicates that all servers are replicated from the main site in an online status. This means that the hot site maintains a live, real-time copy of data and applications, ensuring immediate availability in the event of a failure at the main site. Unlike options A and B, which describe load balancing and backup strategies respectively, clustering with a hot site as described in option C ensures that the hot site can take over with minimal downtime, maintaining business continuity.
References:
CompTIA Cloud+ CV0-004 Study Guide and Official CompTIA Content
Question # 5
| Which of the following strategies requires the development of new code before an application can be successfully migrated to a cloud provider? | | A. Refactor | | B. Rearchitect | | C. Rehost
| | D. Replatform |
A. Refactor
Explanation:
Refactoring requires the development of new code before an application can be successfully migrated to a cloud provider. It often involves restructuring and optimizing the existing code without changing its external behavior to fit into the new cloud environment.
Question # 6
| A company serves customers globally from its website hosted in North America. A cloud engineer recently deployed new instances of the website in the Europe region. Which of the following is the most likely reason? | A. To simplify workflow
| B. To enhance security
| C. To reduce latency
| D. To decrease cost
|
C. To reduce latency
The most likely reason for deploying new instances of a website in the Europe region, in addition to the ones hosted in North America, is to reduce latency for users located in Europe. By having the website's resources closer to the end-users, the data has a shorter distance to travel, resulting in faster load times and better performance.
References: CompTIA Cloud+ Study Guide (Exam CV0-004) by Todd Montgomery and Stephen Olson
Question # 7
| A cloud solutions architect needs to have consistency between production, staging, and development environments. Which of the following options will best achieve this goal? | | A. Using Terraform templates with environment variables
| | B. Using Grafana in each environment
| | C. Using the ELK stack in each environment
| | D. Using Jenkins agents in different environments
|
A. Using Terraform templates with environment variables
Explanation:
Terraform templates with environment variables can ensure consistency across different environments such as production, staging, and development. Terraform allows for infrastructure as code, which can be used to define and maintain infrastructure with consistency.
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