CLF-C02 Cloud Technology and Services Practice Test 16 — 15 Questions

Question 1

Which AWS service provides a fully managed API for building conversational interfaces (chatbots) using natural language understanding powered by the same technology as Amazon Alexa?

Accepted Answer

Amazon Lex. Amazon Lex is the correct answer because it is a fully managed AWS service that provides APIs for building conversational interfaces (chatbots) using automatic speech recognition (ASR) and natural language understanding (NLU), leveraging the same deep learning technology that powers Amazon Alexa. This enables developers to create applications that can understand and respond to natural language input.

Answer

Amazon Polly

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Amazon Transcribe

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Amazon Comprehend

Question 2

A company needs to convert text documents into natural-sounding speech in multiple languages for an audiobook application. Which AWS service provides this capability?

Accepted Answer

Amazon Polly. Amazon Polly is a managed service that turns text into lifelike speech using deep learning technologies, supporting multiple languages and voices. It is specifically designed for text-to-speech (TTS) conversion, making it the correct choice for generating natural-sounding audio for an audiobook application.

Answer

Amazon Transcribe

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Amazon Translate

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Amazon Lex

Question 3

A healthcare company needs to extract structured medical data from clinical notes and medical documents. Which AWS service provides ML-powered extraction of medical information from unstructured text?

Accepted Answer

Amazon Comprehend Medical. Amazon Comprehend Medical is specifically designed to extract structured medical information such as diagnoses, medications, and test results from unstructured clinical text using natural language processing (NLP) and machine learning. It is the only AWS service purpose-built for healthcare use cases like parsing clinical notes and medical documents.

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Amazon Textract

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Amazon Comprehend

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Amazon Rekognition

Question 4

Which AWS service enables real-time translation of text between languages for applications serving a global audience?

Accepted Answer

Amazon Translate. Amazon Translate is a neural machine translation service that delivers fast, high-quality, and customizable language translation in real time. It is specifically designed to translate text between languages for applications serving a global audience, making it the correct choice for this use case.

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Amazon Comprehend

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Amazon Polly

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Amazon Transcribe

Question 5

A company wants to deploy AWS services in a specific geographic location within a metropolitan area to reduce latency for end users in that city, while still using standard AWS APIs. Which AWS infrastructure type addresses this?

Accepted Answer

AWS Local Zones. AWS Local Zones are an infrastructure type that places compute, storage, and other select AWS services closer to end users in a specific metropolitan area, enabling single-digit millisecond latency for latency-sensitive applications while using the same AWS APIs and tools as in an AWS Region. This directly meets the requirement of reducing latency within a city without requiring custom APIs or on-premises hardware.

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AWS Outposts

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CloudFront Edge Locations

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AWS Wavelength Zones

Question 6

Which AWS storage service is designed for shared file storage accessible simultaneously by multiple EC2 instances using the NFS protocol?

Accepted Answer

Amazon EFS. Amazon EFS (Elastic File System) is a fully managed, scalable NFS file system that can be mounted concurrently on multiple EC2 instances. It uses the NFSv4.1 protocol, enabling shared access across Availability Zones and instances, which is exactly what the question describes.

Answer

Amazon EBS

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Amazon S3

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Amazon FSx for Windows File Server

Question 7

A company needs to integrate their on-premises Active Directory with AWS to enable SSO for employees accessing AWS services. Which AWS service provides this federation capability?

Accepted Answer

AWS IAM Identity Center. AWS IAM Identity Center (formerly AWS SSO) is the correct service for integrating on-premises Active Directory with AWS to enable single sign-on (SSO) for employees accessing AWS services. It supports federation via SAML 2.0 or SCIM protocols, allowing you to connect your existing AD identity source and centrally manage user access to multiple AWS accounts and business applications.

Answer

Amazon Cognito

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AWS Directory Service AD Connector

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AWS IAM roles

Question 8

Which AWS service provides a private connection from an on-premises network to AWS that bypasses the public internet and provides consistent network performance?

Accepted Answer

AWS Direct Connect. AWS Direct Connect is the correct answer because it provides a dedicated, private network connection from an on-premises data center to AWS, completely bypassing the public internet. This ensures consistent network performance, lower latency, and higher bandwidth, as the connection is established through a standard 1 Gbps or 10 Gbps Ethernet fiber-optic cable linked to an AWS Direct Connect location.

Answer

AWS Site-to-Site VPN

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Amazon CloudFront

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AWS Transit Gateway

Question 9

A company needs to connect multiple VPCs and on-premises networks through a single hub, simplifying network management. Which AWS service acts as a cloud router to interconnect these networks?

Accepted Answer

AWS Transit Gateway. AWS Transit Gateway acts as a cloud router, using a hub-and-spoke model to interconnect multiple VPCs and on-premises networks through a single gateway. It simplifies network management by centralizing routing, supporting transitive routing between all attached networks, and integrating with AWS Direct Connect and VPN connections.

Answer

VPC Peering

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AWS Direct Connect

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Internet Gateway

Question 10

Which Amazon EC2 instance family is optimized for memory-intensive workloads such as in-memory databases, real-time big data analytics, and high-performance computing?

Accepted Answer

Memory-optimized instances (R and X family). Memory-optimized instances (R and X families) are designed for workloads that require large amounts of RAM and high memory bandwidth, such as in-memory databases (e.g., Redis, Memcached), real-time big data analytics (e.g., Apache Spark), and high-performance computing (HPC) tasks. These instances offer a high memory-to-vCPU ratio and support for large instance sizes, enabling efficient processing of data sets that reside primarily in memory.

Answer

Compute-optimized instances (C family)

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Storage-optimized instances (I and D family)

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Accelerated computing instances (P and G family)

Question 11

A company is running their application on EC2 instances behind an Application Load Balancer. They want to ensure the application remains available during an AZ outage. What is the minimum architecture configuration required?

Accepted Answer

EC2 instances distributed across at least two Availability Zones behind an ALB. To remain available during an Availability Zone outage, the application must be resilient to the failure of an entire AZ. An Application Load Balancer distributes traffic across healthy targets, but it cannot route to instances in a failed AZ. Therefore, EC2 instances must be deployed in at least two separate Availability Zones, and the ALB must be configured with subnets in those same AZs to route traffic and perform health checks, ensuring continuous availability if one AZ goes down.

Answer

Multiple EC2 instances in a single Availability Zone

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A single large EC2 instance with enhanced networking

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EC2 instances in a single Region across multiple subnets in the same AZ

Question 12

Which type of Elastic Load Balancer routes HTTP/HTTPS traffic based on content such as URL path, hostname, and HTTP headers, enabling advanced request routing rules?

Accepted Answer

Application Load Balancer (ALB). The Application Load Balancer (ALB) operates at Layer 7 of the OSI model and can route HTTP/HTTPS traffic based on request-level attributes such as URL path, hostname, HTTP headers, and query strings. This enables advanced routing rules like path-based routing (e.g., /api to one target group, /images to another) and host-based routing (e.g., app1.example.com vs app2.example.com). ALB also supports features like WebSocket, HTTP/2, and AWS WAF integration, making it the correct choice for content-based routing.

Answer

Network Load Balancer (NLB)

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Gateway Load Balancer (GWLB)

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Classic Load Balancer

Question 13

A company wants to store frequently changing configuration data and feature flags that their applications need to read at runtime without hard-coding values. Which AWS service provides secure, centralized configuration storage with version history?

Accepted Answer

AWS Systems Manager Parameter Store. AWS Systems Manager Parameter Store is the correct choice because it provides a secure, centralized service for storing configuration data and feature flags, with built-in version history for each parameter. It allows applications to read configuration values at runtime via the AWS SDK or CLI without hard-coding, and supports encryption using AWS KMS for sensitive data.

Answer

Amazon S3

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Amazon DynamoDB

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AWS CloudFormation

Question 14

Which AWS service enables event-driven architectures by acting as a central event bus that routes events from AWS services, SaaS applications, and custom applications to configured targets?

Accepted Answer

Amazon EventBridge. Amazon EventBridge is a serverless event bus that ingests events from AWS services, SaaS partners, and custom applications, then routes them to targets like Lambda, Step Functions, or SQS based on configurable rules. It decouples event producers from consumers, enabling event-driven architectures without polling or custom middleware. This matches the question's description of a central event bus for cross-domain event routing.

Answer

Amazon SNS

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Amazon SQS

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AWS Step Functions

Question 15

A company needs to implement DevOps practices and wants a fully managed service to store their application source code with version control. Which AWS service provides managed Git repositories?

Accepted Answer

AWS CodeCommit. AWS CodeCommit is a fully managed source control service that hosts secure Git-based repositories. It eliminates the need to operate your own source control system by providing managed Git repositories that integrate with other AWS services, making it the correct choice for storing application source code with version control.

Answer

AWS CodeBuild

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AWS CodeDeploy

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AWS CodeArtifact