A company is migrating to the AWS Cloud instead of running its infrastructure on premises.
Which of the following are advantages of this migration? (Choose two.)
A. Elimination of the need to perform security auditing
B. Increased global reach and agility
C. Ability to deploy globally in minutes
D. Elimination of the cost of IT staff members
E. Redundancy by default for all compute services
Show Answer
Correct Answer: B, C
Explanation: Migrating to AWS provides increased global reach and agility by leveraging AWS’s worldwide infrastructure, and enables rapid global deployment in minutes using managed services and automation. Security auditing is still required under the shared responsibility model, IT staff are not eliminated, and redundancy is not automatic for all compute services.
Question 143
Which AWS service or tool provides a visualization of historical AWS spending patterns and projections of future AWS costs?
A. AWS Cost and Usage Report
B. AWS Budgets
C. Cost Explorer
D. Amazon Cloud Watch
Show Answer
Correct Answer: C
Explanation: AWS Cost Explorer is specifically designed to visualize historical AWS spending and usage patterns and to generate forecasts of future costs. It provides interactive charts, filtering, and cost projections, which the other options do not offer in the same way.
Question 144
A company has an AWS Business Support plan. The company needs to gain access to the AWS DDoS Response Team (DRT) to help mitigate DDoS events.
Which AWS service or resource must the company use to meet these requirements?
A. AWS Shield Standard
B. AWS Enterprise Support
C. AWS WAF
D. AWS Shield Advanced
Show Answer
Correct Answer: D
Explanation: Access to the AWS DDoS Response Team (DRT) is provided only with AWS Shield Advanced. Shield Standard offers automatic protections but no DRT access, AWS WAF is a filtering service without DRT access, and the Business or Enterprise Support plans alone do not grant DRT access unless Shield Advanced is enabled.
Question 145
A company wants a cost-effective option when running its applications in an Amazon EC2 instance for short time periods. The applications can be interrupted.
Which EC2 instance type will meet these requirements?
A. Spot Instances
B. On-Demand Instances
C. Reserved Instances
D. Dedicated Instances
Show Answer
Correct Answer: A
Explanation: Spot Instances are the most cost-effective EC2 option for short-duration workloads that can tolerate interruptions. They use spare AWS capacity at significantly reduced prices, with the understanding that instances can be interrupted when capacity is needed elsewhere.
Question 146
A company wants the ability to automatically acquire resources as needed and release the resources when they are no longer needed.
Which cloud concept describes this functionality?
A. Availability
B. Elasticity
C. Durability
D. Reliability
Show Answer
Correct Answer: B
Explanation: The ability to automatically scale resources up when demand increases and release them when they are no longer needed is known as elasticity. Availability, durability, and reliability refer to system uptime, data persistence, and consistent operation, not dynamic scaling.
Question 147
A company wants to track the monthly cost and usage of all Amazon EC2 instances in a specific AWS environment.
Which AWS service or tool will meet these requirements?
A. AWS Cost Anomaly Detection
B. AWS Budgets
C. AWS Compute Optimizer
D. AWS Trusted Advisor
Show Answer
Correct Answer: B
Explanation: AWS Budgets allows tracking of both cost and usage on a monthly basis with filtering by service (Amazon EC2) and other dimensions. It provides visibility and alerts for spending and usage in a specific environment, which directly meets the requirement.
Question 148
Which AWS service integrates with other AWS services to provide the ability to encrypt data at rest?
A. AWS Key Management Service (AWS KMS)
B. AWS Certificate Manager (ACM)
C. AWS Identity and Access Management (IAM)
D. AWS Security Hub
Show Answer
Correct Answer: A
Explanation: AWS Key Management Service (AWS KMS) integrates with many AWS services (such as S3, EBS, RDS, and DynamoDB) to manage encryption keys and enable encryption of data at rest. The other options focus on certificates (ACM), identity and permissions (IAM), or security posture management (Security Hub), not data-at-rest encryption.
Question 149
A company migrated its systems to the AWS Cloud. The systems are rightsized, and a security review did not reveal any issues. The company must ensure that additional developments, integrations, changes, and system usage growth do not jeopardize this optimized AWS infrastructure.
Which AWS service should the company use to report ongoing optimization and security?
A. AWS Trusted Advisor
B. AWS Health Dashboard
C. Amazon Connect
D. AWS Systems Manager
Show Answer
Correct Answer: A
Explanation: AWS Trusted Advisor continuously evaluates an AWS environment against best practices for cost optimization, performance, security, fault tolerance, and service limits. It is specifically designed to provide ongoing recommendations and alerts as usage grows or changes are introduced, ensuring the infrastructure remains optimized and secure over time.
Question 150
A company has a workload that will run continuously for 1 year. The workload cannot tolerate service interruptions.
Which Amazon EC2 purchasing option will be MOST cost-effective?
A. All Upfront Reserved Instances
B. Partial Upfront Reserved Instances
C. Dedicated Instances
D. On-Demand Instances
Show Answer
Correct Answer: A
Explanation: The workload runs continuously for a full year and cannot tolerate interruptions, which rules out Spot Instances. For steady, predictable usage over 1 year, Reserved Instances are more cost-effective than On-Demand. Among Reserved Instance options, All Upfront Reserved Instances provide the highest discount compared to Partial Upfront, making them the most cost-effective choice. Dedicated Instances are significantly more expensive and are only needed for compliance or isolation requirements, which are not stated here.
Question 151
Which AWS service or tool provides users with a graphical interface that they can use to manage AWS services?
A. AWS Copilot
B. AWS CLI
C. AWS Management Console
D. AWS software development kits (SDKs)
Show Answer
Correct Answer: C
Explanation: The AWS Management Console is a web-based graphical user interface that allows users to view, configure, and manage AWS services interactively. The other options (CLI, SDKs, Copilot) are command-line or programmatic tools rather than graphical interfaces.
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