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Amazon CLF-C02: Which AWS Service is Highly Available and Scalable DNS Web Service?

By: Author Alex Lim

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Discover why Amazon Route 53 is the ideal highly available and scalable DNS web service for the AWS Certified Cloud Practitioner CLF-C02 exam. Learn its features and functionality to ace your certification.

Question

Which AWS service is a highly available and scalable DNS web service?

A. Amazon VPC
B. Amazon CloudFront
C. Amazon Route 53
D. Amazon Connect

Answer

C. Amazon Route 53

Explanation

Amazon Route 53 is a highly available and scalable DNS web service. It is designed to give developers and businesses an extremely reliable and cost-effective way to route end users to Internet applications by translating names into the numeric IP addresses that computers use to connect to each other. Amazon Route 53 also offers other features like health checks, traffic management, domain name registration, and DNSSEC.

Amazon Route 53 is a highly available, scalable, and reliable Domain Name System (DNS) web service provided by AWS. It is specifically designed to route end-user requests efficiently to infrastructure in AWS or other locations. As a DNS service, it translates domain names (e.g., www.example.com) into the numeric IP addresses (e.g., 192.0.2.1) that computers use to connect to each other.

Here’s why Amazon Route 53 is the correct answer:

High Availability and Scalability

  • Route 53 leverages globally distributed DNS servers to ensure high availability and low latency for DNS queries.
  • It uses automatic scaling to handle varying workloads, making it suitable for applications of all sizes.

Core Features

  • DNS Routing: Supports multiple routing policies such as simple, weighted, latency-based, failover, geolocation, and multi-value answer routing.
  • Health Checking: Monitors the health of resources and redirects traffic to healthy endpoints when necessary.
  • Domain Registration: Allows users to purchase and manage domain names directly through AWS.

Integration with AWS Services

  • Seamlessly integrates with other AWS services like EC2, S3, Elastic Load Balancing, and CloudFront.
  • Provides advanced features like Alias records for mapping domain names to AWS resources without additional costs.

Why Other Options Are Incorrect

A. Amazon VPC: Virtual Private Cloud (VPC) is used for creating isolated network environments within AWS but does not provide DNS services.
B. Amazon CloudFront: A content delivery network (CDN) service designed for fast delivery of web content but not a DNS service.
D. Amazon Connect: A cloud-based contact center solution for customer engagement, unrelated to DNS functionality.

By understanding the role of Amazon Route 53 as a scalable and reliable DNS service, you can confidently answer similar questions on the AWS Certified Cloud Practitioner CLF-C02 exam.

Which AWS Service is Highly Available and Scalable DNS Web Service?

Amazon AWS Certified Cloud Practitioner CLF-C02 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Amazon AWS Certified Cloud Practitioner CLF-C02 exam and earn Amazon AWS Certified Cloud Practitioner CLF-C02 certification.