CompTIA Cloud+ (V4) CV0-004 Practice Questions

Answer : B

Updating the IP tables to block connections to a specific IP address as a response to vulnerabilities is an example of remediation. Remediation involves taking direct action to fix vulnerabilities, such as by applying patches, changing configurations, or, in this case, updating firewall rules to block potentially harmful traffic.

References: CompTIA Cloud+ resources and vulnerability management processes

Answer : D

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.

Answer : A, C

For detailed logging to support root cause analysis of past events, the team should implement log retention to ensure logs are kept for the necessary amount of time and log aggregation to compile logs from various sources for easier analysis and correlation.

: Log management practices, including retention and aggregation, are part of the cloud management strategies covered in the CompTIA Cloud+ curriculum, particularly in the domain of technical operations.

Answer : A

In the Docker pull command given, images.comptia.org represents the image registry. A Docker image registry is a collection of repositories that host Docker images. It is where images are stored and organized, and from where they can be pulled for deployment.

: Docker and container management concepts, including image registries, are part of the cloud services understanding in the CompTIA Cloud+ curriculum.

Answer : D

In the CompTIA Cloud+ (CV0-004) objectives under storage solutions and lifecycle management, storage tiers are categorized based on access frequency, performance, and cost optimization. Archive storage is specifically designed for data that must be retained long-term but is rarely accessed. It is typically considered functionally read-only because data stored in archive tiers is not meant for active modification. Instead, it must be restored or rehydrated before it can be accessed for use.

Hot storage is intended for frequently accessed, high-performance workloads. Warm storage supports occasional access with moderate latency and cost. Cold storage is for infrequently accessed data but still allows relatively quicker retrieval than archive. Archive storage, however, offers the lowest cost per GB and the highest retrieval latency, making it ideal for compliance records, legal archives, backups, and historical datasets.

Cloud providers implement archive tiers as part of a data lifecycle policy, automatically transitioning data to lower-cost tiers when it becomes inactive. Therefore, archive storage best fits the description of read-only data accessed only when needed.

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Answer : C

Availability zones provide the best availability for critical applications in the event of a disaster. They are distinct locations within a cloud region that are engineered to be isolated from failures in other availability zones, thus providing redundancy and failover capabilities, which is essential for maintaining high availability of critical applications.

: The concept of availability zones and their importance in disaster recovery and high availability is covered under the domain of Management and Technical Operations in the CompTIA Cloud+ objectives.

Answer : A

To improve container security, the engineer should add the instruction 'USER nonroot' to the Dockerfile. This change ensures that the container does not run as the root user, which reduces the risk of privilege escalation attacks. Running containers as a non-root user is a best practice for enhancing security in containerized environments.

: CompTIA Cloud+ content includes security concerns, measures, and concepts for cloud operations, highlighting container security best practices such as running containers with least privilege to mitigate security risks.