CV0-004 Practice Test 7 — 10 Questions

Question 1

A company wants to implement a disaster recovery strategy with an RTO of 15 minutes and an RPO of 1 minute for a critical database. Which approach should be used?

Accepted Answer

Cross-region continuous replication with automatic failover. Continuous replication with automatic failover provides near-zero RPO and fast RTO.

Answer

Scheduled snapshots every hour

Answer

Daily snapshots copied to another region

Answer

Weekly full backups to tape stored offsite

Question 2

A company is performing a disaster recovery test for a critical application. The test reveals that the application's RTO of 1 hour is not being met due to slow database restoration. Which THREE actions could help improve the restoration time? (Select THREE.)

Accepted Answer

Implement continuous replication to a standby database. Pre-warming standby instances reduces launch time, using faster storage like Provisioned IOPS speeds up data access, and implementing continuous replication reduces the amount of data to restore.

Answer

Disable encryption on the database to reduce overhead

Answer

Increase the retention period of automated backups

Question 3

A company uses a multi-cloud environment with AWS and Azure. They want to centralize log collection and enable advanced querying for troubleshooting. Which combination of services should they use?

Accepted Answer

AWS CloudWatch Logs and Azure Log Analytics. AWS CloudWatch Logs and Azure Log Analytics are the centralized logging services for each cloud. They can be aggregated using third-party tools, but the question asks for the native services to use. CloudWatch Logs for AWS, Log Analytics for Azure. CloudTrail is for API auditing, not general log collection.

Answer

AWS CloudTrail and Azure Monitor

Answer

AWS S3 and Azure Blob Storage

Answer

AWS CloudWatch and Azure Application Insights

Question 4

A company is using Azure VMs and wants to centralize logs from multiple applications for security analysis. The logs must be retained for 2 years. Which Azure service should they use?

Accepted Answer

Azure Log Analytics. Azure Log Analytics (now part of Azure Monitor) provides centralized log management and configurable retention up to 2 years (or more with archive).

Answer

Azure Activity Log

Answer

Azure Application Insights

Answer

Azure Storage Analytics

Question 5

A cloud administrator wants to choose an auto-scaling policy that can respond to changing demand patterns. Which TWO policy types support dynamic adjustments based on real-time metrics? (Choose TWO)

Accepted Answer

Target tracking scaling. Target tracking and step scaling both adjust capacity dynamically based on real-time metrics.

Answer

Predictive scaling

Answer

Scheduled scaling

Answer

Simple scaling

Question 6

A company wants to track cloud spending by department and project. Which strategy should be implemented to enable cost attribution?

Accepted Answer

Implement a resource tagging strategy. Resource tagging allows filtering and grouping costs by tags like department or project.

Answer

Use a single account for all workloads

Answer

Enable detailed billing reports

Answer

Use AWS Organizations only

Question 7

An organization wants to reduce cloud costs by identifying underutilized EC2 instances. Which AWS service provides rightsizing recommendations?

Accepted Answer

AWS Compute Optimizer. AWS Compute Optimizer analyzes resource utilization and provides recommendations to optimize AWS resources. AWS Cost Explorer shows spending but not specific rightsizing recommendations.

Answer

AWS Budgets

Answer

AWS Trusted Advisor

Answer

AWS Cost Explorer

Question 8

A cloud administrator cannot deploy a new VM from a custom image. The deployment fails with an error stating 'Incompatible hypervisor version'. What is the most likely cause?

Accepted Answer

The image was created on a newer hypervisor than the current host.. If the custom image was created on a newer version of the hypervisor, it may include features or configuration that are not supported by the older hypervisor version on the host, causing the 'Incompatible hypervisor version' error. Option B is incorrect because virtual hardware version typically relates to compatibility within the same hypervisor, but the error is specifically about hypervisor version mismatch. Option C is incorrect because a corrupt image would typically cause different errors (e.g., file read failure). Option D is incorrect because the error is about hypervisor compatibility, not storage backend support.

Answer

The VM's virtual hardware version is too old.

Answer

The image file is corrupt.

Answer

The storage backend does not support the image format.

Question 9

A cloud architect is designing a multi-account AWS environment and wants to deploy CloudFormation stacks consistently across many accounts. The architect needs a solution that can manage stack instances across multiple accounts and Regions from a single administrator account. Which AWS feature should be used?

Accepted Answer

Stack sets. AWS CloudFormation StackSets allow you to create, update, or delete stacks across multiple accounts and Regions from a single admin account.

Answer

Drift detection

Answer

Nested stacks

Answer

Change sets

Question 10

A cloud application is intermittently slow. Based on the exhibit, which of the following is the most likely cause?

Accepted Answer

A network security group is blocking port 3306.. The intermittent slowness points to a network security group blocking port 3306, which is used by MySQL/MariaDB. When the NSG intermittently drops packets to this port, the application experiences timeouts and retries, causing sporadic slowdowns. This is a common issue in cloud environments where security rules are misconfigured or applied at the wrong priority level.

Answer

The database server is overloaded.

Answer

The database endpoint DNS record is incorrect.

Answer

The application has insufficient memory.