Which task is the responsibility of a company that is using Amazon RDS?
A. Provision the underlying infrastructure.
B. Create IAM policies to control administrative access to the service.
C. Install the cables to connect the hardware for compute and storage.
D. Install and patch the RDS operating system.
Show Answer
Correct Answer: B
Explanation: With Amazon RDS, AWS manages the underlying infrastructure, hardware, networking, and the operating system installation and patching. The customer is responsible for configuring access to AWS resources, including creating IAM policies to control administrative access to the RDS service.
Question 284
A company wants to discover, prepare, move, and integrate data from multiple sources for data analytics and machine learning.
Which AWS serverless data integration service should the company use to meet these requirements?
A. AWS Glue
B. AWS Data Exchange
C. Amazon Athena
D. Amazon EMR
Show Answer
Correct Answer: A
Explanation: AWS Glue is AWS's serverless data integration service designed to discover, prepare, move, and integrate data from multiple sources for analytics, machine learning, and application development. AWS Data Exchange is for subscribing to third-party datasets, Amazon Athena is a serverless query service, and Amazon EMR is a managed big data platform rather than a serverless data integration service.
Question 285
Which AWS service or feature allows users to securely store encrypted credentials and retrieve these credentials when required?
A. AWS Encryption SDK
B. AWS Security Hub
C. AWS Secrets Manager
D. AWS Artifact
Show Answer
Correct Answer: C
Explanation: AWS Secrets Manager is the AWS service designed to securely store, manage, encrypt, and retrieve secrets such as database credentials, API keys, and passwords. It integrates with AWS KMS for encryption, supports fine-grained IAM access control, and can automatically rotate secrets. The other options do not provide secret storage and retrieval functionality.
Question 286
Which AWS Cloud Adoption Framework (AWS CAF) perspective focuses on managing identities and permissions at scale?
A. Operations
B. Platform
C. Governance
D. Security
Show Answer
Correct Answer: D
Explanation: The AWS Cloud Adoption Framework (AWS CAF) Security perspective focuses on protecting workloads, managing identities and permissions at scale, detecting threats, and ensuring security controls. Identity and Access Management (IAM) is a core responsibility of the Security perspective.
Question 287
Which AWS service or tool gives a company the ability to release application changes in an automated way?
A. Amazon AppFlow
B. AWS CodeDeploy
C. AWS PrivateLink
D. Amazon EKS Distro
Show Answer
Correct Answer: B
Explanation: AWS CodeDeploy is the AWS deployment service that automates application deployments to Amazon EC2, Amazon ECS, AWS Lambda, and on-premises instances, enabling automated release of application changes. Amazon AppFlow is for data integration, AWS PrivateLink provides private connectivity, and Amazon EKS Distro is a Kubernetes distribution, not a deployment automation service.
Question 288
Where can users find examples of AWS Cloud solution designs?
A. AWS Marketplace
B. AWS Service Catalog
C. AWS Architecture Center
D. AWS Trusted Advisor
Show Answer
Correct Answer: C
Explanation: The AWS Architecture Center provides reference architectures, architecture diagrams, best practices, and example cloud solution designs for a wide range of AWS workloads. AWS Marketplace distributes software, Service Catalog manages approved products within organizations, and Trusted Advisor provides recommendations for optimizing AWS environments.
Question 289
A company needs to use SQL syntax to perform a direct query of objects in an Amazon S3 bucket.
Which AWS service can the company use to meet this requirement?
A. AWS Glue
B. Amazon Athena
C. AWS Lambda
D. Amazon Kinesis
Show Answer
Correct Answer: B
Explanation: Amazon Athena is a serverless interactive query service that allows you to use standard SQL to query data directly in Amazon S3 without loading it into a database. AWS Glue is primarily for data cataloging and ETL, Lambda is compute, and Kinesis is for streaming data.
Question 290
A company has temporary workload that is also variable. The company needs to use Amazon EC2 instances for the workload. The EC2 instances need to handle short bursts of work that cannot stop before finishing.
Which purchase option will meet these requirements?
A. Spot Instances
B. On-Demand Instances
C. Savings Plan
D. Reserved Instances
Show Answer
Correct Answer: B
Explanation: On-Demand Instances are the best fit for temporary and variable workloads that need immediate capacity and must not be interrupted. Spot Instances can be reclaimed by AWS with short notice, making them unsuitable for jobs that cannot stop before completion. Savings Plans and Reserved Instances are pricing commitments rather than instance types and are intended for predictable, longer-term usage.
Question 291
Which AWS design principle emphasizes the reduction of interdependencies between components of an application?
A. Scalability
B. Loose coupling
C. Automation
D. Caching
Show Answer
Correct Answer: B
Explanation: Loose coupling is an AWS Well-Architected design principle that minimizes dependencies between application components so they can change, fail, and scale independently, improving resilience and maintainability.
Question 292
How does the AWS Cloud help companies build agility into their processes and cloud infrastructure?
A. Companies can avoid provisioning too much capacity when they do not know how much capacity is required.
B. Companies can expand into new geographic regions.
C. Companies can access a range of technologies to experiment and innovate quickly.
D. Companies can pay for IT resources only when they use the resources.
Show Answer
Correct Answer: C
Explanation: Agility in the AWS Cloud refers to the ability to rapidly experiment, develop, and innovate. AWS provides a broad portfolio of managed services and technologies that allow companies to quickly build, test, and deploy solutions without waiting for infrastructure procurement. While the other options describe important cloud benefits (elasticity, global reach, and pay-as-you-go pricing), the one most directly tied to building agility is access to a wide range of technologies for rapid experimentation and innovation.
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