A user needs to perform a one-time backup of an Amazon Elastic Block Store (Amazon EBS) volume that is attached to an Amazon EC2 instance.
What is the MOST operationally efficient way to perform this backup?
A. Attach another EBS volume to the EC2 instance, and copy the contents.
B. Copy the EBS volume to a server that is running outside AWS and is connected with AWS Direct Connect.
C. Create an EBS snapshot of the volume.
D. Create a custom script to copy the EBS file contents to Amazon S3.
Show Answer
Correct Answer: C
Explanation: Creating an EBS snapshot is the most operationally efficient option because it provides a point-in-time, incremental backup managed by AWS without requiring additional infrastructure, data copying, or custom scripts. It is fast, reliable, and designed specifically for backing up EBS volumes.
Question 183
A company needs an event history of which AWS resources the company has created.
Which AWS service will provide this information?
A. Amazon CloudWatch
B. AWS CloudTrail
C. Amazon Aurora
D. Amazon EventBridge
Show Answer
Correct Answer: B
Explanation: AWS CloudTrail records a history of AWS API calls and events, including the creation, modification, and deletion of AWS resources. This provides an event history of which resources were created and by whom. CloudWatch focuses on metrics and logs, EventBridge on event routing, and Aurora is a database service.
Question 184
A company is using AWS Identity and Access Management (IAM).
Who can manage the access keys of the AWS account root user?
A. IAM users in the same account that have been granted permission
B. IAM roles in any account that have been granted permission
C. IAM users and roles that have been granted permission
D. The AWS account owner
Show Answer
Correct Answer: D
Explanation: The AWS account root user’s access keys can only be created, rotated, or deleted by the AWS account owner (the root user). IAM users and IAM roles cannot manage or control the root user’s access keys, regardless of permissions granted to them. AWS best practice is to avoid using root access keys and instead use IAM users or roles for day-to-day operations.
Question 185
Which AWS service or feature allows a company to have its own logically isolated section of the AWS Cloud?
A. AWS VPN
B. Availability Zones
C. Amazon Virtual Private Cloud (Amazon VPC)
D. AWS Regions
Show Answer
Correct Answer: C
Explanation: An Amazon Virtual Private Cloud (VPC) provides a logically isolated section of the AWS Cloud where a company can launch AWS resources in a virtual network it defines. Regions and Availability Zones are AWS infrastructure constructs, and AWS VPN is a connectivity service, not the isolation boundary itself.
Question 186
Which benefit is always free of charge with AWS, regardless of a user’s AWS Support plan?
A. AWS Developer Support
B. AWS Developer Forums
C. Programmatic case management
D. AWS technical account manager (TAM)
Show Answer
Correct Answer: B
Explanation: AWS Developer Forums are available to all users at no cost, regardless of the AWS Support plan. The other options—Developer Support, programmatic case management, and a Technical Account Manager—are features tied to paid AWS Support plans.
Question 187
An ecommerce company plans to move its data center workload to the AWS Cloud to support highly dynamic usage patterns.
Which benefits make the AWS Cloud cost-effective for the migration of this type of workload? (Choose two.)
A. Reliability
B. Security
C. Elasticity
D. Pay-as-you-go resource
E. High availability
Show Answer
Correct Answer: C, D
Explanation: For highly dynamic workloads, AWS is cost-effective primarily because of elasticity and pay-as-you-go pricing. Elasticity allows resources to scale up and down automatically based on demand, preventing overprovisioning during low usage. Pay-as-you-go pricing ensures the company only pays for the resources it actually consumes, which directly reduces costs compared to maintaining fixed on-premises capacity. Reliability, security, and high availability are important benefits, but they are not the primary cost drivers for this scenario.
Question 188
Which statements accurately describe the relationships among components of AWS global infrastructure? (Choose two.)
A. There are more AWS Regions than Availability Zones.
B. There are more edge locations than AWS Regions.
C. An edge location is an Availability Zone.
D. There are more AWS Regions than edge locations.
E. There are more Availability Zones than AWS Regions.
Show Answer
Correct Answer: B, E
Explanation: AWS has a relatively small number of Regions globally, each Region contains multiple Availability Zones, so there are more Availability Zones than Regions. Edge locations, used primarily by services like CloudFront and Route 53, are far more numerous and distributed worldwide than Regions. Therefore, statements B and E correctly describe AWS global infrastructure relationships.
Question 189
A company needs to deploy a PostgreSQL database into Amazon RDS. The database must be highly available and fault tolerant.
Which AWS solution should the company use to meet these requirements?
A. Amazon RDS with a single Availability Zone
B. Amazon RDS snapshots
C. Amazon RDS with multiple Availability Zones
D. AWS Database Migration Service (AWS DMS)
Show Answer
Correct Answer: C
Explanation: High availability and fault tolerance for Amazon RDS are achieved by deploying the database in a Multi-AZ configuration. Amazon RDS with multiple Availability Zones automatically provisions and maintains a synchronous standby replica in a different AZ and performs automatic failover if the primary instance fails. The other options do not provide built-in high availability across AZs.
Question 190
A company wants to rightsize its Amazon EC2 instances.
Which configuration change will meet this requirement with the LEAST operational overhead?
A. Add EC2 instances in another Availability Zone.
B. Change the size and type of the EC2 instances based on utilization.
C. Convert the payment method from On-Demand to Savings Plans.
D. Reprovision the EC2 instances with a larger instance type.
Show Answer
Correct Answer: B
Explanation: Rightsizing EC2 means matching instance size and type to actual workload utilization to eliminate over- or under-provisioning. Changing the size and type based on utilization directly achieves rightsizing with minimal operational overhead. The other options address availability, pricing models, or scaling up only, not rightsizing.
Question 191
Which AWS Cloud design principle is a company using when the company implements AWS CloudTrail?
A. Activate traceability.
B. Use serverless compute architectures.
C. Perform operations as code.
D. Go global in minutes.
Show Answer
Correct Answer: A
Explanation: AWS CloudTrail records and logs all API calls and account activity, providing visibility and auditability of actions taken within the AWS environment. This directly aligns with the AWS Cloud design principle of activating traceability, which focuses on enabling monitoring, logging, and auditing to understand and track system behavior.
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