CV0-004 Practice Test 6 — 10 Questions

Question 1

An organization uses multiple cloud providers and wants to centralize secrets management. Which solution would best meet this requirement?

Accepted Answer

HashiCorp Vault. HashiCorp Vault is a multi-cloud secrets management solution that can store and rotate secrets across different providers.

Answer

Azure Key Vault

Answer

AWS Secrets Manager

Answer

Google Cloud Secret Manager

Question 2

A company wants to migrate its on-premises workloads to the cloud and requires full control over the operating system, installed software, and security configurations. Which cloud service model should they choose?

Accepted Answer

IaaS. IaaS provides virtualized computing resources where the customer manages the OS and above, giving full control.

Answer

FaaS

Answer

PaaS

Answer

SaaS

Question 3

A cloud database cluster is experiencing replication lag. The primary node shows high write activity, and the replicas are on different availability zones. Which of the following is the most likely cause?

Accepted Answer

Network latency between the primary and replica zones is high.. Network latency between availability zones is a common cause of replication lag in asynchronous replication setups, especially when the primary has high write activity. Option A is incorrect because synchronous replication would cause the primary to wait for acknowledgment from replicas, leading to write slowdown rather than lag on replicas. Option C is incorrect because insufficient storage on replicas would typically cause disk-full errors, not replication lag. Option D is incorrect because vCPU over-allocation on the primary primarily affects compute performance, not the replication process which is more sensitive to network and disk I/O.

Answer

Replication is configured as synchronous.

Answer

The replica nodes have insufficient storage.

Answer

The primary node's vCPU is over-allocated.

Question 4

An organization wants to audit all API calls made in their AWS account. Which AWS service should be enabled to capture these logs?

Accepted Answer

AWS CloudTrail. AWS CloudTrail records API activity for governance, compliance, and auditing.

Answer

Amazon CloudWatch

Answer

AWS Trusted Advisor

Answer

AWS Config

Question 5

A company manages a multi-account AWS environment and wants to deploy consistent infrastructure across several accounts using CloudFormation. The solution must support updates to the infrastructure and detect configuration drift. Which TWO CloudFormation features should be used?

Accepted Answer

StackSets. StackSets (B) is correct because it is the CloudFormation feature designed to deploy and update the same template across multiple AWS accounts and Regions from a single administrator account, which directly satisfies the requirement for consistent infrastructure across several accounts. Drift detection (E) is correct because it lets CloudFormation compare a stack's actual resource configuration against its expected template configuration and report resources that have been modified outside CloudFormation, satisfying the drift-detection requirement. Change sets (A) only preview how proposed changes would affect a single stack before execution, so they do not provide multi-account deployment or drift detection. Outputs (C) merely export values from a stack for cross-stack references and do not deploy or monitor infrastructure. Nested stacks (D) help organize reusable templates within a single account/stack hierarchy but do not natively roll out stacks across multiple accounts or detect drift.

Answer

Change sets

Answer

Outputs

Answer

Nested stacks

Question 6

A cloud administrator is designing network security for a three-tier application. The web tier must be accessible from the internet, but the application and database tiers should only be reachable from the web tier. Which security group configuration should be used?

Accepted Answer

Use separate security groups: web allows HTTP/HTTPS from 0.0.0.0/0; app allows traffic from web security group; db allows traffic from app security group. It uses separate security groups for each tier, implementing the principle of least privilege. The web tier security group allows HTTP/HTTPS from 0.0.0.0/0 for internet access, while the app tier security group references the web tier security group as its source, ensuring only traffic from the web tier can reach the application tier. Similarly, the database tier security group references the app tier security group, restricting access exclusively to the application tier. This configuration enforces strict east-west traffic control and prevents direct internet access to the internal tiers.

Answer

Assign the same security group to all tiers and use a single inbound rule

Answer

Place all tiers in the same subnet and use a network ACL to permit all traffic

Answer

Configure a network ACL for each subnet with allow rules for the required traffic

Question 7

A company wants to migrate its on-premises workloads to the cloud but must keep sensitive data on-premises due to regulatory requirements. Which cloud deployment model should the company use?

Accepted Answer

Hybrid cloud. A hybrid cloud deployment model combines on-premises infrastructure with public cloud services, allowing sensitive data to remain on-premises while other workloads leverage cloud scalability. This directly meets the regulatory requirement to keep sensitive data local while still benefiting from cloud resources for other components.

Answer

Multi-cloud

Answer

Public cloud

Answer

Private cloud

Question 8

A cloud administrator is troubleshooting why a newly launched VM did not complete its initialization. According to the exhibit, what is the most likely cause?

Accepted Answer

The package repository is not configured correctly. The error 'E: Unable to locate package python3-pip' indicates that the package repository is not configured correctly or the package does not exist in the configured sources. This prevents cloud-init from installing the specified package, so the most likely cause is an incorrect repository configuration. Therefore, option B is correct. Option A is incorrect because cloud-init is executing commands, showing it is installed. Option C is incorrect because the error is about a missing package, not a syntax error. Option D is incorrect because the command ran successfully, indicating no network issues; the problem is repository configuration.

Answer

Cloud-init is not installed on the VM

Answer

The cloud-init user data script contains a syntax error

Answer

The VM does not have internet access

Question 9

A cloud administrator needs to design a storage solution that provides block-level access for a database server and must be highly durable. Which storage type should be used?

Accepted Answer

Block storage. Block storage is the correct choice because it provides raw, low-latency block-level access that database servers require for high-performance read/write operations. It also supports features like RAID, snapshots, and replication to achieve high durability, making it ideal for transactional databases.

Answer

File storage

Answer

Archive storage

Answer

Object storage

Question 10

Which of the following is a characteristic of serverless computing (FaaS)?

Accepted Answer

You are charged per execution or compute time. Serverless computing (FaaS) abstracts all infrastructure management and bills based on actual consumption — typically per invocation and per GB-second of compute time. This means you pay only when your function executes, not for idle capacity. This consumption-based model is the defining economic characteristic of FaaS platforms like AWS Lambda, Azure Functions, and Google Cloud Functions.

Answer

You pay for allocated resources regardless of usage

Answer

You must manage the underlying servers

Answer

You have to provision capacity in advance