- (Topic 4)
Following the deployment of a new VM, a cloud engineer notices the backup platform has not added the machine to the appropriate job. The backup platform uses a text-based variable for job configuration. This variable is based on the RPO requirements for the workload. Which of the following did the cloud engineer forget to configure when deploying the virtual machine?
✑ Tags
Correct Answer:
A
Tags are key-value pairs that can be applied to cloud resources to organize, categorize, and filter them. Tags can also be used to assign resources to backup jobs based on their RPO requirements. The cloud engineer forgot to configure the appropriate tag for the new VM that matches the text-based variable of the backup platform. Therefore, the backup platform did not add the VM to the correct job. References: Tags and labels |
Cloud Storage | Google Cloud, CompTIA Cloud+ Certification Exam Objectives, Domain 4.0: Operations and Support, Objective 4.3: Given a scenario, apply the appropriate methods for cost control in a cloud environment.
- (Topic 4)
A Cloud administrator needs to reduce storage costs. Which of the following would BEST help the administrator reach that goal?
Correct Answer:
B
The correct answer is B. Implementing deduplication would best help the administrator reduce storage costs.
Deduplication is a technique that eliminates redundant copies of data and stores only one unique instance of the data. This can reduce the amount of storage space required and lower the storage costs. Deduplication can be applied at different levels, such as file-level, block-level, or object-level. Deduplication can also improve the performance and efficiency of backup and recovery operations.
Enabling compression is another technique that can reduce storage costs, but it may not be as effective as deduplication, depending on the type and amount of data. Compression reduces the size of data by applying algorithms that remove or replace redundant or unnecessary bits. Compression can also affect the quality and accessibility of the data, depending on the compression ratio and method.
Using containers and rightsizing the VMs are techniques that can reduce compute costs, but not necessarily storage costs. Containers are lightweight and portable units of software that run on a shared operating system and include only the necessary dependencies and libraries. Containers can reduce the overhead and resource consumption of virtual machines (VMs), which require a full operating system for each instance. Rightsizing the VMs means adjusting the CPU, memory, disk, and network resources of the VMs to match their workload requirements. Rightsizing the VMs can optimize their performance and utilization, and avoid overprovisioning or underprovisioning.
- (Topic 1)
In an existing IaaS instance, it is required to deploy a single application that has different versions.
Which of the following should be recommended to meet this requirement?
Correct Answer:
A
Containers are a type of deployment technology that packages an application and its dependencies into a lightweight and portable unit that can run on any platform or environment. Containers can help deploy a single application that has different
versions in an existing IaaS instance, as they can isolate and run multiple versions of the same application without any conflicts or interference. Containers can also enable faster and easier deployment, scaling, and management of cloud-based applications. References: CompTIA Cloud+ Certification Exam Objectives, page 11, section 1.6
- (Topic 4)
A systems administrator is planning to deploy a database cluster in a virtualization environment. The administrator needs to ensure the database nodes do not exist on the same physical host. Which of the following would best meet this requirement?
Correct Answer:
B
Anti-affinity is the concept of ensuring that certain virtual machines or workloads do not run on the same physical host. This can improve the availability and performance of the system, as well as prevent a single point of failure. In this scenario, the systems administrator needs to ensure the database nodes do not exist on the same physical host, so anti-affinity would best meet this requirement. Oversubscription is the concept of allocating more resources to virtual machines than the physical host actually has, which can improve the utilization and efficiency of the system, but it does not guarantee the separation of the database nodes. A firewall is a device or software that controls the network traffic between different zones or segments, which can improve the security and isolation of the system, but it does not affect the placement of the database nodes. A separate cluster is a group of hosts that share common resources and policies, which can improve the scalability and manageability of the system, but it does not ensure the database nodes do not exist on the same physical host within the cluster. References: CompTIA Cloud+ CV0-003 Certification Study Guide, Chapter 1, Cloud Architecture and Design, page 131.
- (Topic 4)
A systems administrator is troubleshooting issues with audio lag during phone conferences. When looking at the core switch, the administrator notices its buffers are consistently full, and packets are being dropped due to the large number being sent and received. There is no room in the budget for new hardware, but it is critical that the audio lag be fixed immediately. Which of the following will most likely resolve the issue?
Correct Answer:
B
Quality of Service (QoS) rules can be configured to prioritize certain types of traffic, such as voice over IP (VoIP) traffic. This can help reduce audio lag during phone conferences by ensuring that VoIP packets are delivered faster and with less delay than other types of traffic. QoS rules can be applied at different levels of the network, such as the core switch, the router, or the firewall. By configuring QoS rules for VoIP traffic, the administrator can avoid packet drops and buffer overflows that can affect the quality of the audio. References: [CompTIA Cloud+ CV0-003 Study Guide], Chapter 3, Objective 3.2: Given a scenario, troubleshoot network connectivity issues.
