Amazon CLF-C02 Online Practice Questions and Exam Preparation

Amazon CLF-C02 Online Questions & Answers

• Question 861:

  A company needs a fully managed file server that natively supports Microsoft workloads and file systems. The file server must also support the SMB protocol. Which AWS service should the company use to meet these requirements?

  A. Amazon Elastic File System (Amazon EFS)
  B. Amazon FSx for Lustre
  C. Amazon FSx for Windows File Serve
  D. Amazon Elastic Block Store (Amazon EBS)
  C. Amazon FSx for Windows File Serve

  ---

  Explanation

  Amazon FSx for Windows File Server is a fully managed file server that supports Microsoft workloads and file systems, including the SMB protocol. It provides features such as user quotas, end-user file restore, and Microsoft Active Directory

  integration.

  Amazon EFS is a fully managed file system that supports the NFS protocol, not SMB.

  Amazon FSx for Lustre is a fully managed file system designed for high-performance computing workloads, not Microsoft workloads.

  Amazon EBS is a block storage service that does not provide a file system or support for SMB.

• Question 862:

  A company needs to store data from a recommendation engine in a database.

  Which AWS service provides this functionality with the LEAST operational overhead?

  A. Amazon RDS for PostgreSQL
  B. Amazon DynamoDB
  C. Amazon Neptune
  D. Amazon Aurora
  B. Amazon DynamoDB

  ---

  Explanation

  Amazon DynamoDB is a key-value and document database that delivers single-digit millisecond performance at any scale. It's a fully managed, multi-region, multi- active, durable database with built-in security, backup and restore, and in-memory caching for internet-scale applications. DynamoDB can handle more than 10 trillion requests per day and can support peaks of more than 20 million requests per second. DynamoDB provides the least operational overhead for storing data from a recommendation engine, as it does not require any server provisioning, patching, or maintenance3

• Question 863:

  Which AWS service uses a combination of publishers and subscribers?

  A. AWS Lambda
  B. Amazon Simple Notification Service (Amazon SNS)
  C. Amazon CloudWatch
  D. AWS CloudFormation
  B. Amazon Simple Notification Service (Amazon SNS)

  ---

  Explanation

  Amazon Simple Notification Service (Amazon SNS) is a service that provides fully managed pub/sub messaging. Pub/sub messaging is a pattern that uses a combination of publishers and subscribers. Publishers are entities that produce messages and send them to topics. Subscribers are entities that receive messages from topics. Topics are logical access points that act as communication channels between publishers and subscribers. Amazon SNS enables applications to decouple, scale, and coordinate the delivery of messages to multiple endpoints, such as email, SMS, mobile push notifications, Lambda functions, SQS queues, and HTTP/S endpoints. Amazon SNS OverviewAWS Certified Cloud Practitioner

  -aws.amazon.com

• Question 864:

  A company wants to securely access an Amazon S3 bucket from an Amazon EC2 instance without accessing the internet. What should the company use to accomplish this goal?

  A. VPN connection
  B. Internet gateway
  C. VPC endpoint
  D. NAT gateway
  C. VPC endpoint

  ---

  Explanation

  A VPC endpoint enables private connections between an Amazon VPC and AWS services, like Amazon S3, without requiring internet access. This allows secure access to S3 from an EC2 instance within the same VPC, reducing latency and improving security. VPN connections and NAT gateways do not eliminate internet traffic, and an internet gateway would expose the VPC to the public internet.

• Question 865:

  Which option is an advantage of AWS Cloud computing that minimizes variable costs?

  A. High availability
  B. Economies of scale
  C. Global reach
  D. Agility
  B. Economies of scale

  ---

  Explanation

  Economies of scale is the advantage of AWS Cloud computing that minimizes variable costs. Economies of scale refers to the reduction in the cost per unit as the output increases. AWS Cloud computing leverages economies of scale by providing a large pool of shared resources that can be accessed on demand and paid for as needed. AWS Cloud computing also passes the cost savings to the customers by offering lower prices and discounts. For more information, see Economies of Scale and AWS Pricing.

• Question 866:

  Which AWS service provides a fully managed graph database for highly connected datasets?

  A. Amazon DynamoDB
  B. Amazon RDS
  C. Amazon Neptune
  D. Amazon Aurora
  C. Amazon Neptune

  ---

  Explanation

• Question 867:

  A company is migrating a relational database server to the AWS Cloud. The company wants to minimize administrative overhead of database maintenance tasks.

  Which AWS service will meet these requirements?

  A. Amazon DynamoDB
  B. Amazon EC2
  C. Amazon Redshift
  D. Amazon RDS
  D. Amazon RDS

  ---

  Explanation

  Amazon RDS is the AWS service that will meet the requirements of migrating a relational database server to the AWS Cloud and minimizing administrative overhead of database maintenance tasks. Amazon RDS is a fully managed relational database service that handles routine database tasks, such as provisioning, patching, backup, recovery, failure detection, and repair. Amazon RDS supports several database engines, such as MySQL, PostgreSQL, Oracle, SQL Server, and Amazon Aurora5.

• Question 868:

  An application runs on multiple Amazon EC2 instances that access a shared file system simultaneously.

  Which AWS storage service should be used?

  A. Amazon EBS
  B. Amazon EFS
  C. Amazon S3
  D. AWS Artifact
  B. Amazon EFS

  ---

  Explanation

  Amazon Elastic File System (Amazon EFS) is the AWS storage service that should be used for an application that runs on multiple Amazon EC2 instances that access a shared file system simultaneously. Amazon EFS is a fully managed service that provides a scalable, elastic, and highly available file system for Linux-based workloads. Amazon EFS supports the Network File System version 4 (NFSv4) protocol and allows multiple EC2 instances to read and write data to the same file system concurrently. Amazon EFS also integrates with other AWS services, such as AWS Backup, AWS CloudFormation, and AWS CloudTrail. For more information, see What is Amazon Elastic File System? and [Amazon EFS Use Cases].

• Question 869:

  An auditor needs to find out whether a specific AWS service is compliant with specific compliance frameworks.

  Which AWS service will provide this information?

  A. AWS Artifact
  B. AWS Trusted Advisor
  C. Amazon GuardDuty
  D. AWS Certificate Manager (ACM)
  A. AWS Artifact

  ---

  Explanation

  AWS Artifact is the service that will provide the information about whether a specific AWS service is compliant with specific compliance frameworks. AWS Artifact is a self-service portal that allows you to access, review, and download AWS security and compliance reports and agreements. You can use AWS Artifact to verify the compliance status of AWS services across various regions and compliance programs, such as ISO, PCI, SOC, FedRAMP, HIPAA, and more12

• Question 870:

  Which option is a customer responsibility when using Amazon DynamoDB under the AWS Shared Responsibility Model?

  A. Physical security of DynamoDB
  B. Patching of DynamoDB
  C. Access to DynamoDB tables
  D. Encryption of data at rest in DynamoDB
  C. Access to DynamoDB tables

  ---

  Explanation

  According to the AWS Shared Responsibility Model, AWS is responsible for the security of the cloud, while the customer is responsible for the security in the cloud. This means that AWS is responsible for protecting the infrastructure that runs

  AWS services, such as DynamoDB, while the customer is responsible for properly configuring the security of the provided service. For abstracted services, such as DynamoDB, the customer is primarily responsible for managing their data,

  classifying their assets, and using IAM tools to apply the appropriate permissions. Therefore, the customer is responsible for controlling the access to DynamoDB tables, such as by creating IAM policies, roles, and users, and using encryption

  and authentication mechanisms.

  References:

  Shared Responsibility Model - Amazon Web Services (AWS) Security and compliance in Amazon DynamoDB - Amazon DynamoDB What is Shared Responsibility Model? - Check Point Software