CV0-004 Practice Test 28 — 15 Questions

Question 1

A cloud operations team is implementing structured logging for better querying. They have decided to use JSON format. What is a key benefit of structured logging over unstructured logging?

Accepted Answer

Enables querying specific fields. Structured logging (e.g., JSON) enables efficient querying and filtering of log data.

Answer

Easier to read for humans

Answer

Reduced storage costs

Answer

Faster log ingestion

Question 2

A cloud administrator is troubleshooting network connectivity issues between two VPCs in AWS. The administrator wants to examine traffic flow logs to identify dropped packets. Which AWS feature provides detailed network traffic logs for VPCs?

Accepted Answer

VPC Flow Logs. VPC Flow Logs capture IP traffic information for network interfaces in a VPC.

Answer

AWS X-Ray

Answer

AWS CloudTrail

Answer

Amazon CloudWatch Logs

Question 3

A cloud engineer is designing a patching strategy for a fleet of Windows servers running in AWS. The engineer needs to automate patching, define a maintenance window, and have the ability to roll back patches if issues occur. Which two AWS services or features should be used to meet these requirements? (Choose TWO.)

Accepted Answer

AWS Systems Manager Patch Manager. AWS Systems Manager Patch Manager provides automated patching, and maintenance windows define schedules. Rollback can be handled via creating snapshots before patching (not a service but a feature). The correct two are Patch Manager and Maintenance Windows.

Answer

AWS Backup

Answer

AWS CloudFormation

Answer

AWS Config

Question 4

A cloud engineer wants to receive real-time notifications when a CloudWatch Alarm enters the ALARM state. Which notification channel can be configured directly within the CloudWatch Alarm action?

Accepted Answer

Amazon Simple Notification Service (SNS). CloudWatch Alarms can directly send notifications to an SNS topic, which can then deliver to email, SMS, etc.

Answer

PagerDuty

Answer

AWS Chatbot

Answer

Slack webhook

Question 5

A company's disaster recovery plan requires them to restore a database to a specific point in time. Which backup strategy should they use?

Accepted Answer

Continuous replication for DR. Continuous replication enables point-in-time recovery by maintaining ongoing changes.

Answer

Cross-region replication

Answer

Full daily backup

Answer

Snapshot-based backup

Question 6

A company wants to centralize logs from multiple AWS services and analyze them using SQL-like queries. Which service should they use?

Accepted Answer

Amazon CloudWatch Logs Insights. Amazon CloudWatch Logs Insights allows querying log data using a SQL-like query language. CloudWatch Logs is the centralized log management service in AWS.

Answer

AWS CloudTrail

Answer

Amazon S3

Answer

AWS Config

Question 7

A cloud administrator needs to ensure that log data is retained for one year to meet compliance requirements. Which action should be taken for the log group in CloudWatch Logs?

Accepted Answer

Set the log group's retention policy to 365 days. CloudWatch Logs allows setting a retention policy on log groups to automatically expire log events after a specified number of days. Setting it to 365 days meets the one-year requirement.

Answer

Create a CloudWatch Events rule to delete logs after one year

Answer

Increase the log group's data durability by enabling encryption

Answer

Export logs to Amazon S3 and delete the log group

Question 8

A company wants to be notified when their monthly AWS spending exceeds $10,000. Which AWS service should they use to set up this alert?

Accepted Answer

AWS Budgets. AWS Budgets allows setting cost budget thresholds and sending alerts via email or SNS when spending exceeds the limit.

Answer

AWS Trusted Advisor

Answer

AWS Cost Explorer

Answer

AWS CloudWatch Alarms

Question 9

A cloud operations team needs to automate patching of Linux servers. Which TWO services can be used? (Choose TWO)

Accepted Answer

Azure Update Management. AWS Systems Manager Patch Manager and Azure Update Management both support automated patching.

Answer

AWS CloudTrail

Answer

AWS CloudFormation

Answer

AWS Config

Question 10

A cloud administrator is configuring a notification channel for critical alerts. Which TWO of the following are commonly used notification channels in cloud monitoring systems? (Select TWO.)

Accepted Answer

Amazon Simple Notification Service (SNS). Common notification channels include email (SMTP) and integration services like Slack webhooks. SNS is an AWS notification service that can send to email or other endpoints, but PagerDuty is also a common integration.

Answer

Amazon CloudWatch Logs

Answer

AWS Organizations

Answer

AWS CloudTrail

Question 11

A cloud engineer notices that an auto-scaling group is adding and removing instances too frequently, causing instability. Which configuration parameter should be adjusted to reduce this behavior?

Accepted Answer

Increase the cooldown period. Cooldown periods prevent auto-scaling from launching or terminating instances too rapidly after a scaling activity. Scaling thresholds affect when scaling triggers, but the issue is frequency. Lifecycle hooks are for custom actions during scaling events. Health check grace period is for initial instance health.

Answer

Increase the health check grace period

Answer

Disable lifecycle hooks

Answer

Lower the scaling metric thresholds

Question 12

A company wants to implement a tagging strategy for their cloud resources to track costs by department and project. Tags must be applied to resources such as virtual machines and storage buckets. Which of the following is a best practice for cost attribution using tags?

Accepted Answer

Define a set of mandatory tag keys such as CostCenter, Project, and Environment with standardized values.. Using a consistent tagging strategy with key-value pairs (e.g., Department:Finance, Project:Alpha) allows cost allocation and reporting in billing dashboards.

Answer

Apply tags to resources only after creation to avoid governance issues.

Answer

Use a single tag key 'Environment' with values 'Production' or 'Development'.

Answer

Use free-form text for tag values to allow flexibility.

Question 13

A cloud operations team is setting up log-based alerting for security events. They want to use structured logging to facilitate querying. Which TWO practices support effective log-based alerting? (Choose TWO.)

Accepted Answer

Centralize logs in a log management system. Structured logging (JSON) makes logs machine-parseable and easier to query. Using a centralized logging platform enables search and alerting across all logs. Verbose logging generates noise. Random log formats hinder querying. Syslog is not structured.

Answer

Enable verbose logging for all services

Answer

Use random log formats for different applications

Answer

Send all logs to syslog servers

Question 14

A cloud administrator wants to troubleshoot network connectivity issues between two VPCs. Which AWS feature provides detailed logs of IP traffic for analysis?

Accepted Answer

VPC Flow Logs. VPC Flow Logs capture information about IP traffic going to and from network interfaces in a VPC. CloudTrail logs API calls. CloudWatch Logs is for application logs. Route Tables define routing rules but don't log traffic.

Answer

AWS CloudTrail

Answer

VPC Route Tables

Answer

AWS CloudWatch Logs

Question 15

A company wants to optimize 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 reduce cost and improve performance. AWS Cost Explorer is for cost visualization. AWS Trusted Advisor provides general best practice checks but not specific rightsizing. AWS Budgets is for budget alerts.

Answer

AWS Trusted Advisor

Answer

AWS Cost Explorer

Answer

AWS Budgets