Question # 1 A cloud engineer needs to deploy a new version of a web application to 100 servers. In the past, new version deployments have caused outages. Which of the following deployment types should the cloud engineer implement to prevent the outages from happening this time? A. RollingB. Blue-greenC. CanaryD. Round-robin
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C. Canary
Answer Description Explanation:
A canary deployment is a pattern that reduces the risk of introducing a new software version in production by slowly rolling out the change to a small subset of users before rolling it out to the entire infrastructure. It's an effective strategy to prevent outages since it allows for monitoring and quick rollback if issues arise without affecting all users.References: Canary releases are part of deployment strategies that can help mitigate the risk of outages during updates, a concept included in the CompTIA Cloud+ curriculum.
Question # 2 Which of the following would allow a cloud engineer to flatten a deeply nested JSON log to improve readability for analysts? A. GrafanaB. KibanaC. Elastic searchD. Log stash
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D. Log stash
Answer Description 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 # 3 Which of the following is a difference between a SAN and a NAS? A. A SAN works only with fiber-based networks.B. A SAN works with any Ethernet-based network.C. A NAS uses a faster protocol than a SAND. A NAS uses a slower protocol than a SAN.
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D. A NAS uses a slower protocol than a SAN.
Answer Description A NAS (Network Attached Storage) typically uses file-level protocols such as NFS or SMB, which are generally considered slower and less efficient than the block-level protocols used by SANs (Storage Area Networks), such as iSCSI or Fibre Channel. SANs are designed for high performance and low latency, making them more suitable for applications requiring fast and efficient storage access.
Question # 4 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. SnapshotB. FulC. DifferentialD. Incremental
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D. Incremental
Answer Description 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 # 5 A company's engineering department is conducting a month-long test on the scalability of an in-house-developed software that requires a cluster of 100 or more servers. Which of the following models is the best to use?
A. PaaSB. SaaSC. DBaaSD. laaS
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D. laaS
Answer Description For testing the scalability of an in-house-developed software that requires a cluster of 100 or more servers, Infrastructure as a Service (IaaS) is the best model. IaaS provides the necessary computeresources and allows the engineering department to configure the environment as needed for their specific test without the constraints that might be present in PaaS or SaaS offerings. References: CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Cloud Service Models
Question # 6 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?
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C. All servers are replicated from the main site in an online status.
Answer Description 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 # 7 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 APIB. RPCC. GraphQLD. Web sockets
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D. Web sockets
Answer Description 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 # 8 Which of the following describes the main difference between public and private container repositories?
A. Private container repository access requires authorization, while public repository access does not require authorizationB. 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 repositories must use proprietary licenses, while public container repositories must have open-source licenses.D. Private container repositories are used to obfuscate the content of the Dockerfile, while public container repositories allow for Dockerfile inspection.
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A. Private container repository access requires authorization, while public repository access does not require authorization
Answer Description 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.
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