CV0-003 Exam Dumps - CompTIA Cloud+ Questions and Answers

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.

Detailed Explanation:

C. Bare-metal: Type 1 hypervisors run directly on the hardware, without requiring a host operating system. This provides high performance and direct resource access.

References:

CompTIA Cloud+ CV0-003 Study Guide Chapter 14: Compute Sizing for Deployment​​.

Containers are packages of software that contain all of the necessary elements to run in any environment. Containers virtualize the operating system and run anywhere, from a private data center to the public cloud or even on a developer’s personal laptop. Containers provide an isolated environment for running applications, sharing the host OS kernel but isolating processes, file systems, and network resources. Containers package applications and their dependencies together, ensuring they run consistently across different environments, from development to production. Containers are lightweight, resource-efficient, fast, and immutable, making them ideal for portability and scalability. By using containers, a cloud administrator can easily move resources from one environment to another without changing the code or configuration of the applications. References: CompTIA Cloud+ CV0-003 Study Guide, Chapter 2: Deploying a Cloud Environment, page 75-76; What are containers?; Portability in the Cloud: Cloud Native and Containers.

A password and a physical token are two factors of authentication that can provide a higher level of security than a password alone. A physical token is a device that generates a one-time code or password that the user must enter along with their password to access the cloud provider console. This is an example of multi-factor authentication (MFA), which requires the user to present two or more pieces of evidence to prove their identity. MFA can prevent unauthorized access even if the password is compromised, as the attacker would also need to have the physical token to log in.

The correct answer is C. Anti-affinity rule.

An anti-affinity rule is a configuration option that prevents two or more virtual machines (VMs) from running on the same physical host. This can improve the availability and fault tolerance of the VMs, as it reduces the risk of losing multiple VMs due to a single host failure. An anti-affinity rule can also improve the performance and load balancing of the VMs, as it distributes the workload across different hosts and avoids resource contention .

A round-robin method is a load balancing algorithm that distributes incoming requests to a pool of servers in a circular order. A round-robin method does not consider the availability, capacity, or location of the servers, and may assign requests to servers that are overloaded, offline, or far away. A round-robin method does not ensure that each node runs on a different physical server.

A live migration is a process that allows moving a running VM from one physical host to another without interrupting its operation. A live migration can improve the availability and performance of the VMs, as it enables dynamic load balancing, maintenance, and disaster recovery. However, a live migration does not prevent two or more VMs from running on the same physical host in the first place.

A priority queue is a data structure that stores elements based on their priority values. A priority queue allows inserting and removing elements in order of their priority, such that the element with the highest priority is always at the front of the queue. A priority queue can be used to implement scheduling algorithms for processes or tasks, but it does not affect where they run on physical servers.

Detailed Explanation:

D. Implement a virtual patch in the WAF: A virtual patch in the Web Application Firewall (WAF) provides immediate protection against a zero-day vulnerability by filtering malicious traffic, without requiring downtime for system updates.

References:

CompTIA Cloud+ CV0-003 Study Guide Chapter 8: Data Security and Compliance Controls​​.

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.

The latency test results show that the connectivity from APAC to EMEA and Americas regions has the highest latency values, ranging from 162 ms to 380 ms. This indicates that there is a significant delay in the network communication between these regions, which could affect the performance and availability of the cloud services. The connectivity from EMEA to all regions also has high latency values, ranging from 60 ms to 328 ms, which could also cause issues for the application deployment team. Therefore, these locations need to be investigated further to identify and resolve the root cause of the network latency.

Some possible causes of network latency are :

Congestion: The network bandwidth may be insufficient to handle the volume of traffic, resulting in packet loss, retransmission, and queuing delays.

Distance: The physical distance between the source and destination nodes may increase the propagation delay, which is the time it takes for a signal to travel through a medium.

Routing: The network topology and configuration may affect the number and quality of hops that a packet takes to reach its destination, resulting in transmission and processing delays.

Hardware: The performance and capacity of the network devices, such as routers, switches, firewalls, and servers, may affect the speed and efficiency of data processing and delivery.

Some possible solutions to reduce network latency are :

Scaling: The network resources can be increased or optimized to handle the traffic demand, such as adding more bandwidth, load balancers, or caching servers.

Location: The network nodes can be placed closer to each other or to the end users, such as using edge computing, content delivery networks (CDNs), or regional cloud data centers.

Routing: The network routes can be improved or optimized to reduce the number and distance of hops, such as using direct peering, dedicated circuits, or software-defined networking (SDN).

Hardware: The network devices can be upgraded or replaced with faster and more reliable ones, such as using solid-state drives (SSDs), fiber-optic cables, or 5G technology.

References:

What is Network Latency? | Cloudflare

How To Reduce Network Latency In 2021 - DNSstuff

1. Understanding the Issue:

A non-supported Linux version indicates an issue with the configuration or template used during provisioning.

Automation scripts work correctly, so the problem likely lies upstream in the provisioning setup.

2. Analyzing the Options:

A. Provisioning script indentation:

Incorrect. Indentation issues typically result in syntax errors, not incorrect Linux versions. ❌

B. Template selection:

Correct. Incorrect or outdated templates can provision servers with unsupported configurations or OS versions. ✅

C. API version:

Incorrect. API versioning is related to compatibility with cloud services but is unlikely to affect the OS version on a server. ❌

D. Script account:

Incorrect. The account running the script has no direct impact on the OS version of the provisioned server. ❌

3. Why Template Selection is Key:

Templates define the OS, version, and configurations for provisioned instances.

Reviewing the selected template ensures it aligns with the organization's standards.

4. References:

CompTIA Cloud+ Objectives:

Section 3.4 - Configure the appropriate compute sizing for a deployment, highlighting template-based provisioning.

CompTIA Study Guide: Discusses template selection during provisioning processes. ​