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. Rolling
| B. Blue-green
| C. Canary
| D. Round-robin
|
C. Canary
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
A company's content management system (CMS) service runs on an laaS cluster on a public cloud. The CMS service is frequently targeted by a malicious threat actor using DDoS. Which of the following should a cloud engineer monitor to identify attacks?
| | A. Network flow logs | | B. Endpoint detection and response logs | | C. Cloud provider event logs | | D. Instance syslog |
A. Network flow logs
To identify DDoS attacks against a CMS service, a cloud engineer should monitor network flow logs. These logs provide data about the IP traffic going to and from network interfaces in a public cloud, which is essential for detecting the increased traffic volumes typically associated with DDoS attacks.
References: CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Security in the Cloud
Question # 3
| A cloud service provider requires users to migrate to a new type of VM within three months. Which of the following is the best justification for this requirement? | | A. Security flaws need to be patched. | | B. Updates could affect the current state of the VMs. | | C. The cloud provider will be performing maintenance of the infrastructure. | | D. The equipment is reaching end of life and end of support. |
D. The equipment is reaching end of life and end of support.
The best justification for a cloud service provider requiring users to migrate to a new type of VM within a specific time frame is that the equipment is reaching end of life and end of support (EOL/EOS). This means that the older type of VM will no longer receive updates or support, which could include important security patches, so it is necessary to move to newer VM types to maintain security and performance. References: CompTIA Cloud+ Study Guide (Exam CV0-004) by Todd Montgomery and Stephen Olson
Question # 4
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 # 5
| A critical security patch is required on a network load balancer in a public cloud. The organization has a major sales conference next week, and the Chief Executive Officer does not want any interruptions during the demonstration of an application behind the load balancer. Which of the following approaches should the cloud security engineer take? | | A. Ask the management team to delay the conference. | | B. Apply the security patch after the event. | | C. Ask the upper management team to approve an emergency patch window. | | D. Apply the security patch immediately before the conference. |
C. Ask the upper management team to approve an emergency patch window.
Given the critical nature of the patch and the upcoming major sales conference, the cloud security engineer should seek approval for an emergency patch window. This approach balances the need for security with the business requirement of no interruptions during the conference. References: The strategy of managing critical updates in alignment with business operations is part of the governance and risk management topics in the CompTIA Cloud+ certification material.
Question # 6
| 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 SAN | | D. A NAS uses a slower protocol than a SAN. |
D. A NAS uses a slower protocol than a SAN.
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 # 7
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)
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