Sample Questions and Answers
✅ Domain: Monitoring, Reporting, and Automation
Which AWS service enables you to collect, view, and analyze logs from AWS resources and applications?
A. AWS CloudTrail
B. AWS X-Ray
C. Amazon CloudWatch Logs
D. AWS Config
Correct Answer: C. Amazon CloudWatch Logs
Explanation: CloudWatch Logs allows you to monitor, store, and access log files from EC2, Lambda, and other AWS services.
A SysOps Admin wants to monitor the CPU utilization of an EC2 instance. Which type of CloudWatch metric should be used?
A. Custom Metric
B. Detailed Metric
C. Standard Metric
D. Basic Metric
Correct Answer: D. Basic Metric
Explanation: EC2 instances send basic metrics like CPU utilization to CloudWatch at 5-minute intervals by default.
Which CloudWatch feature can automatically change the state of AWS resources based on defined thresholds?
A. CloudWatch Logs
B. CloudWatch Metrics
C. CloudWatch Alarms
D. CloudWatch Dashboards
Correct Answer: C. CloudWatch Alarms
Explanation: Alarms allow actions such as auto-scaling or sending notifications when a metric breaches a threshold.
✅ Domain: High Availability and Business Continuity
How can a SysOps Administrator improve the availability of a web application hosted in a single AWS Region?
A. Use Elastic Beanstalk
B. Use Auto Scaling in one Availability Zone
C. Deploy instances across multiple Availability Zones
D. Enable EC2 detailed monitoring
Correct Answer: C. Deploy instances across multiple Availability Zones
Explanation: Distributing instances across AZs ensures higher availability and fault tolerance.
Which AWS service allows automatic recovery of an EC2 instance if it becomes impaired?
A. AWS Auto Scaling
B. Elastic Load Balancer
C. CloudWatch Alarm with EC2 recovery action
D. Amazon Inspector
Correct Answer: C. CloudWatch Alarm with EC2 recovery action
Explanation: CloudWatch alarms can be configured to trigger instance recovery on specific health issues.
✅ Domain: Deployment, Provisioning, and Automation
A SysOps Admin wants to automate the deployment of infrastructure using code. Which tool should they use?
A. AWS CodePipeline
B. AWS CloudFormation
C. AWS Config
D. AWS OpsWorks
Correct Answer: B. AWS CloudFormation
Explanation: CloudFormation enables the definition of infrastructure as code using YAML or JSON templates.
Which AWS service lets you define and enforce configurations using Chef or Puppet?
A. AWS CloudFormation
B. AWS OpsWorks
C. AWS Systems Manager
D. AWS Lambda
Correct Answer: B. AWS OpsWorks
Explanation: OpsWorks is a configuration management service that supports Chef and Puppet automation tools.
What AWS service can a SysOps Admin use to run commands remotely on multiple EC2 instances?
A. AWS CLI
B. AWS Systems Manager Run Command
C. Amazon Inspector
D. CloudFormation Stack
Correct Answer: B. AWS Systems Manager Run Command
Explanation: Run Command enables administrators to remotely manage and automate tasks across EC2 instances.
✅ Domain: Security and Compliance
Which service helps a SysOps Admin monitor AWS account activity?
A. Amazon CloudWatch
B. AWS Config
C. AWS CloudTrail
D. AWS IAM
Correct Answer: C. AWS CloudTrail
Explanation: CloudTrail logs API calls and activities, providing auditing and compliance capabilities.
How can an admin enforce the use of encryption on an S3 bucket?
A. Enable versioning
B. Enable MFA Delete
C. Set a bucket policy requiring encryption
D. Use Glacier lifecycle rule
Correct Answer: C. Set a bucket policy requiring encryption
Explanation: You can create a bucket policy that denies uploads unless encryption headers are present.
✅ Domain: Networking and Content Delivery
Which service automatically distributes traffic across multiple EC2 instances?
A. CloudFront
B. AWS Route 53
C. AWS Load Balancer
D. AWS VPN
Correct Answer: C. AWS Load Balancer
Explanation: Load balancers manage traffic distribution and increase fault tolerance.
What is the primary purpose of Amazon Route 53?
A. CDN
B. Database hosting
C. Domain registration and DNS routing
D. VPC peering
Correct Answer: C. Domain registration and DNS routing
Explanation: Route 53 provides DNS services and health checks to route traffic intelligently.
✅ Domain: Cost and Performance Optimization
Which tool helps in recommending reserved instance purchases?
A. AWS Cost Explorer
B. AWS Trusted Advisor
C. AWS Budgets
D. AWS CloudWatch
Correct Answer: B. AWS Trusted Advisor
Explanation: Trusted Advisor gives recommendations for RI purchases to optimize cost.
A SysOps Admin wants to be alerted when spending exceeds $100 for the month. What should they use?
A. CloudTrail
B. AWS Budgets
C. Cost Explorer
D. Trusted Advisor
Correct Answer: B. AWS Budgets
Explanation: AWS Budgets can trigger alerts based on forecasted or actual spending.
Which EC2 instance pricing option is best for steady workloads?
A. Spot Instances
B. On-Demand
C. Dedicated Hosts
D. Reserved Instances
Correct Answer: D. Reserved Instances
Explanation: Reserved Instances offer cost savings over On-Demand pricing for long-term, steady usage.
✅ Domain: Storage and Data Management
What is the default consistency model for Amazon S3?
A. Eventual consistency
B. Strong consistency
C. Read-after-write consistency
D. Write-after-read consistency
Correct Answer: B. Strong consistency
Explanation: S3 now provides strong read-after-write consistency for all objects.
Which AWS service is best suited for storing infrequently accessed backups?
A. Amazon S3 Standard
B. Amazon EBS
C. Amazon S3 Glacier
D. AWS Storage Gateway
Correct Answer: C. Amazon S3 Glacier
Explanation: Glacier is designed for archival storage at low cost.
What happens when an EBS volume is detached without being unmounted?
A. The volume is deleted
B. The data is corrupted
C. Nothing happens
D. The volume becomes read-only
Correct Answer: B. The data is corrupted
Explanation: Detaching an EBS volume without unmounting can lead to data corruption.
✅ Domain: Troubleshooting
A new EC2 instance is unreachable via SSH. What’s the first step to troubleshoot?
A. Restart the instance
B. Check the key pair
C. Check the security group rules
D. Recreate the instance
Correct Answer: C. Check the security group rules
Explanation: Ensure that port 22 is allowed in inbound rules from your IP.
CloudWatch shows that an instance is underutilized. What should the SysOps Admin do?
A. Increase instance size
B. Convert to Reserved Instance
C. Stop the instance
D. Use a smaller instance type
Correct Answer: D. Use a smaller instance type
Explanation: Right-sizing helps save cost and improve resource efficiency.
✅ More Scenario-Based Questions
A user has deleted an EC2 instance accidentally. How can the SysOps Admin recover it?
A. Use CloudTrail to restore
B. Restore from AMI or snapshot
C. Use EC2 Auto Recovery
D. Reboot EC2 instance
Correct Answer: B. Restore from AMI or snapshot
Explanation: EC2 instances must be recreated from AMIs or EBS snapshots if deleted.
A company wants to prevent users from deleting critical S3 objects. What should be done?
A. Enable S3 versioning
B. Enable MFA delete
C. Apply S3 lifecycle policy
D. Use KMS encryption
Correct Answer: B. Enable MFA delete
Explanation: MFA Delete provides an extra layer of protection against accidental or malicious deletion.
What service helps visualize AWS cost and usage data?
A. AWS Billing Console
B. AWS Budgets
C. AWS Trusted Advisor
D. AWS Cost Explorer
Correct Answer: D. AWS Cost Explorer
Explanation: Cost Explorer provides detailed visualizations for cost trends.
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