Amazon Route 53 DNS Service
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Questions and Answers

What is a hosted zone in Amazon Route 53 analogous to?

  • A collection of DNS servers
  • A set of routing policies
  • A traditional DNS zone file (correct)
  • A type of health check

    • What type of records are automatically created by Amazon Route 53 for hosted zones?

  • Alias and CNAME records
  • NS and SOA records (correct)
  • A and CNAME records
  • MX and TXT records

    • What is required to associate a Route 53 private hosted zone in one AWS account with a VPC in another account?

  • Using the AWS Management Console
  • Using the AWS CLI (correct)
  • Creating a new hosted zone
  • Configuring the VPC settings

    • What can you use Alias records to map?

    <p>All of the above</p> Signup and view all the answers

    What is not supported by Route 53?

    <p>Extending Route 53 to on-premises instances</p> Signup and view all the answers

    What type of health checks can be pointed at?

    <p>Endpoints that can be IP addresses or domain names</p> Signup and view all the answers

    What is the main difference between Alias and CNAME records?

    <p>Alias records can be used for resolving apex/naked domain names</p> Signup and view all the answers

    Which routing policy uses a database of latency from different parts of the world?

    <p>Latency routing policy</p> Signup and view all the answers

    What is Route 53 Traffic Flow used for?

    <p>Global Traffic Management (GTM) services</p> Signup and view all the answers

    What is not automatically registered with private hosted zones?

    <p>EC2 instances</p> Signup and view all the answers

    What is the primary function of Amazon Route 53?

    <p>To serve as a Domain Name System (DNS) service</p> Signup and view all the answers

    Which statement correctly describes the authoritative DNS server function of Route 53?

    <p>It becomes authoritative upon registering a domain</p> Signup and view all the answers

    How can Route 53 be made the authoritative DNS for an existing domain without a transfer?

    <p>By creating a public hosted zone and changing the existing provider's DNS records</p> Signup and view all the answers

    What is the default limit of domain names that can be managed in Route 53?

    <p>50</p> Signup and view all the answers

    What protocol does Route 53 primarily use for DNS queries?

    <p>UDP port 53</p> Signup and view all the answers

    What is a characteristic of the health checks in Route 53?

    <p>They monitor the availability of Internet-connected resources</p> Signup and view all the answers

    What account feature allows you to control access to a Route 53 hosted zone?

    <p>IAM (Identity and Access Management)</p> Signup and view all the answers

    What happens to changes made to DNS Name Servers through Route 53?

    <p>They can take effect in up to 48 hours due to TTL values</p> Signup and view all the answers

    Which of the following is NOT a routing type supported by Amazon Route 53 Traffic Flow?

    <p>Load Balancing</p> Signup and view all the answers

    What is the primary purpose of Route 53 Resolver?

    <p>To perform DNS resolution for hybrid clouds.</p> Signup and view all the answers

    What is the pricing model for Amazon Route 53 hosted zones?

    <p>Pay per hosted zone per month, with no partial month charges.</p> Signup and view all the answers

    Which of these features would result in higher pricing for Amazon Route 53?

    <p>Using latency-based routing.</p> Signup and view all the answers

    What is the benefit of using the versioning feature in Amazon Route 53 Traffic Flow?

    <p>It allows you to roll back to a previous routing policy version.</p> Signup and view all the answers

    Which of the following is NOT a way to provide resolution of Microsoft Active Directory Domain Controller DNS zones and AWS records?

    <p>Configuring a VPN connection between Active Directory and AWS.</p> Signup and view all the answers

    What is the primary purpose of Amazon Route 53 Resolver?

    <p>To enable bi-directional querying between on-premises and AWS over private connections</p> Signup and view all the answers

    What is charged in Amazon Route 53?

    <p>Hosted zones</p> Signup and view all the answers

    What feature allows you to maintain a history of changes to your routing policies in Route 53?

    <p>Versioning</p> Signup and view all the answers

    What type of routing is more expensive in Amazon Route 53?

    <p>Latency-based routing</p> Signup and view all the answers

    What is the purpose of Route 53 Resolver Endpoints?

    <p>To enable bi-directional querying between on-premises and AWS over private connections</p> Signup and view all the answers

    What is not charged in Amazon Route 53?

    <p>Alias records</p> Signup and view all the answers

    What is used to enable DNS resolution for hybrid clouds?

    <p>Route 53 Resolver</p> Signup and view all the answers

    What is the benefit of using the versioning feature in Amazon Route 53 Traffic Flow?

    <p>To easily roll back to a previous policy version</p> Signup and view all the answers

    What type of routing configurations can be created using Amazon Route 53 Traffic Flow?

    <p>Failover and geolocation</p> Signup and view all the answers

    What is required to extend an on-premises DNS to a VPC?

    <p>A DHCP options set</p> Signup and view all the answers

    Which statement is true regarding Alias records in Route 53?

    <p>Alias records support mapping to AWS service DNS names.</p> Signup and view all the answers

    What must be set to true for VPC settings in private hosted zones?

    <p>DNS resolution</p> Signup and view all the answers

    Which routing policy allows for multiple endpoints that return different IP addresses for a single domain?

    <p>Multi-value Answer Routing Policy</p> Signup and view all the answers

    What is a key feature of health checks in Amazon Route 53?

    <p>They connect to endpoints to assess instance health.</p> Signup and view all the answers

    What happens to CNAME records in Route 53 when dealing with apex domain names?

    <p>They are not allowed for apex domain names.</p> Signup and view all the answers

    What happens when you create a hosted zone with the same name as another hosted zone?

    <p>Multiple hosted zones with different records will coexist.</p> Signup and view all the answers

    Which routing policy requires the use of Route Flow?

    <p>Geo-proximity Routing Policy</p> Signup and view all the answers

    Which functionality does Route 53 Traffic Flow provide?

    <p>Global Traffic Management services</p> Signup and view all the answers

    What protocol is used to specify Fully Qualified Domain Names (FQDN) for NS servers?

    <p>UDP</p> Signup and view all the answers

    What can be done to make Route 53 the authoritative DNS for an existing domain without transferring it?

    <p>Create a public hosted zone and change the DNS Name Servers.</p> Signup and view all the answers

    Which statement about transferring domains to Route 53 is correct?

    <p>Domains can be transferred if the TLD is supported by Route 53.</p> Signup and view all the answers

    What is the role of health checks in Amazon Route 53?

    <p>To verify if Internet-connected resources are reachable and functional.</p> Signup and view all the answers

    Which of the following statements is true about the use of UDP and TCP in Route 53?

    <p>Route 53 primarily uses UDP but can use TCP when necessary.</p> Signup and view all the answers

    How does Route 53 handle domain name registration limits?

    <p>The limit can be increased by contacting support.</p> Signup and view all the answers

    What type of DNS service does Route 53 provide?

    <p>A highly available and scalable DNS service.</p> Signup and view all the answers

    Which feature of Route 53 allows for authoritative DNS within VPCs?

    <p>Private DNS</p> Signup and view all the answers

    What happens to changes made to DNS Name Servers through Route 53?

    <p>Changes may not take effect for up to 48 hours due to DNS TTL values.</p> Signup and view all the answers

    What is required to control management access to a Route 53 hosted zone?

    <p>Utilizing Amazon IAM for access control.</p> Signup and view all the answers

    What is a hosted zone in Amazon Route 53?

    <p>A collection of records for a specific domain.</p> Signup and view all the answers

    What happens when you create a hosted zone with the same name as another hosted zone?

    <p>An error is returned, as a hosted zone with the same name already exists.</p> Signup and view all the answers

    How long can it take for changes to DNS Name Servers to take effect after being modified in Route 53?

    <p>Up to 48 hours</p> Signup and view all the answers

    Which of the following is NOT a function provided by Amazon Route 53?

    <p>Domain registration</p> Signup and view all the answers

    What is the primary purpose of Amazon Route 53 Private DNS?

    <p>To manage DNS records for internal applications within a VPC.</p> Signup and view all the answers

    Which of the following is a benefit of using Alias records in Route 53?

    <p>They allow you to map a domain name to an Elastic Load Balancer.</p> Signup and view all the answers

    How can you control access to your Amazon Route 53 hosted zone?

    <p>By using AWS IAM.</p> Signup and view all the answers

    What is the main purpose of health checks in Route 53?

    <p>To verify the reachability and functionality of your resources.</p> Signup and view all the answers

    Which of the following statements is true about transferring a domain to Route 53?

    <p>You can only transfer domains to Route 53 if the TLD is supported.</p> Signup and view all the answers

    Which of the following is NOT a benefit of using Amazon Route 53?

    <p>Unlimited domain name registration.</p> Signup and view all the answers

    What is the main difference between a public hosted zone and a private hosted zone in Route 53?

    <p>Public hosted zones are used for public websites, while private hosted zones are used for internal applications within a VPC.</p> Signup and view all the answers

    What type of routing policy can be used to create routing configurations based on factors like latency, endpoint health, and load?

    <p>Traffic Flow Policies</p> Signup and view all the answers

    What feature of Amazon Route 53 allows you to manage a history of changes to your routing policies?

    <p>Routing Policy Versioning</p> Signup and view all the answers

    Which of these features in Amazon Route 53 would likely lead to higher pricing?

    <p>Latency-Based Routing</p> Signup and view all the answers

    What is the purpose of Route 53 Resolver Endpoints?

    <p>To resolve DNS queries within a VPC</p> Signup and view all the answers

    Which of the following is NOT a way to provide resolution of Microsoft Active Directory Domain Controller DNS zones and AWS records?

    <p>Deploying a DNS Proxy Server in the VPC</p> Signup and view all the answers

    What is charged in Amazon Route 53?

    <p>Hosted Zones</p> Signup and view all the answers

    What is the main purpose of Amazon Route 53 Resolver?

    <p>To perform DNS resolution for hybrid cloud environments</p> Signup and view all the answers

    Which type of routing configurations can be created using Amazon Route 53 Traffic Flow?

    <p>A combination of failover, geolocation, and latency-based routing</p> Signup and view all the answers

    What is the primary purpose of health checks in Amazon Route 53?

    <p>To monitor the health and availability of your applications</p> Signup and view all the answers

    What is the benefit of using the versioning feature in Amazon Route 53 Traffic Flow?

    <p>It provides a mechanism for reverting to previous routing policy configurations.</p> Signup and view all the answers

    Which of the following statements about hosted zones in Amazon Route 53 is correct?

    <p>A hosted zone can manage multiple records together.</p> Signup and view all the answers

    What is a limitation of Alias records compared to CNAME records?

    <p>Alias records cannot point to ELB instances.</p> Signup and view all the answers

    Which routing policy in Amazon Route 53 is specifically designed to route based on the geographical location of the user?

    <p>Geo-location Routing Policy</p> Signup and view all the answers

    What is required for health checks in Amazon Route 53 to function properly?

    <p>Health checks must be directed to an endpoint.</p> Signup and view all the answers

    How can you extend an on-premises DNS to a VPC in Amazon Route 53?

    <p>By creating a DHCP options set.</p> Signup and view all the answers

    What is a notable difference between Alias records and CNAME records when resolving domain names?

    <p>CNAME records can't resolve apex names.</p> Signup and view all the answers

    Which feature allows you to associate a Route 53 hosted zone with a VPC from a different AWS account?

    <p>Cross-account association</p> Signup and view all the answers

    Which record type is specifically designed for mapping resources to Amazon services in Route 53?

    <p>Alias record</p> Signup and view all the answers

    Which routing policy uses multiple IP addresses to respond to a single DNS query?

    <p>Multi-value Answer Routing Policy</p> Signup and view all the answers

    What must be set to true for private hosted zones in Amazon Route 53 in regards to VPC?

    <p>DNS Resolution</p> Signup and view all the answers

    Study Notes

    Amazon Route 53 Overview

    • Highly available and scalable Domain Name System (DNS) service.
    • Provides worldwide distributed DNS service alongside edge locations.
    • Functions to perform include routing internet traffic and health checks for resources.

    Domain Registration and Management

    • Authoritative DNS server when a domain is registered with Route 53, creating a public hosted zone.
    • For existing domains, create a public hosted zone and update Name Servers without transferring the domain.
    • Changes to Name Servers may take up to 48 hours due to DNS Time To Live (TTL) values.
    • Domains can only be transferred if the Top-Level Domain (TLD) is supported.

    Hosted Zones

    • Hosted zone is a collection of DNS records for a specified domain, similar to a traditional DNS zone file.
    • Two types of hosted zones: public and private; NS and SOA records are automatically created.
    • Multiple hosted zones can share the same name but contain different records.

    Health Checks

    • Health checks verify the availability and functionality of internet-connected resources.
    • Can be pointed at endpoints that are IP addresses or domain names.
    • Various health check types can be created for monitoring resources.

    DNS Record Types

    • Supports multiple DNS record types, including Alias records, which map to AWS resources (e.g., ELB, CloudFront).
    • Alias records allow apex domain name resolution, unlike CNAME records.
    • Wildcard entries supported for all record types except NS records.

    Routing Policies

    • Determine how Route 53 responds to queries; policies include Simple, Failover, Geo-location, Latency, Multi-value Answer, and Weighted Routing.
    • Simple Routing Policy is basic; Failover redirects traffic based on health checks.

    Traffic Flow

    • Global Traffic Management (GTM) feature enables creation of routing policies based on specific criteria like latency and load.
    • Includes versioning for routing policies to maintain change history and rollback options.

    Route 53 Resolver

    • Enables bi-directional DNS querying between on-premises networks and AWS using private connections.
    • Facilitates DNS resolution for hybrid cloud environments.

    Pricing

    • Charges incurred per hosted zone per month without partial month billing.
    • Hosted zones deleted within 12 hours of creation incur no charges.
    • Health checks and specific route types may have varying costs, with some services like Alias records free under certain conditions.

    Amazon Route 53 Overview

    • Highly available and scalable Domain Name System (DNS) service.
    • Provides worldwide distributed DNS service alongside edge locations.
    • Functions to perform include routing internet traffic and health checks for resources.

    Domain Registration and Management

    • Authoritative DNS server when a domain is registered with Route 53, creating a public hosted zone.
    • For existing domains, create a public hosted zone and update Name Servers without transferring the domain.
    • Changes to Name Servers may take up to 48 hours due to DNS Time To Live (TTL) values.
    • Domains can only be transferred if the Top-Level Domain (TLD) is supported.

    Hosted Zones

    • Hosted zone is a collection of DNS records for a specified domain, similar to a traditional DNS zone file.
    • Two types of hosted zones: public and private; NS and SOA records are automatically created.
    • Multiple hosted zones can share the same name but contain different records.

    Health Checks

    • Health checks verify the availability and functionality of internet-connected resources.
    • Can be pointed at endpoints that are IP addresses or domain names.
    • Various health check types can be created for monitoring resources.

    DNS Record Types

    • Supports multiple DNS record types, including Alias records, which map to AWS resources (e.g., ELB, CloudFront).
    • Alias records allow apex domain name resolution, unlike CNAME records.
    • Wildcard entries supported for all record types except NS records.

    Routing Policies

    • Determine how Route 53 responds to queries; policies include Simple, Failover, Geo-location, Latency, Multi-value Answer, and Weighted Routing.
    • Simple Routing Policy is basic; Failover redirects traffic based on health checks.

    Traffic Flow

    • Global Traffic Management (GTM) feature enables creation of routing policies based on specific criteria like latency and load.
    • Includes versioning for routing policies to maintain change history and rollback options.

    Route 53 Resolver

    • Enables bi-directional DNS querying between on-premises networks and AWS using private connections.
    • Facilitates DNS resolution for hybrid cloud environments.

    Pricing

    • Charges incurred per hosted zone per month without partial month billing.
    • Hosted zones deleted within 12 hours of creation incur no charges.
    • Health checks and specific route types may have varying costs, with some services like Alias records free under certain conditions.

    Amazon Route 53 Overview

    • Highly available and scalable Domain Name System (DNS) service.
    • Provides worldwide distributed DNS service alongside edge locations.
    • Functions to perform include routing internet traffic and health checks for resources.

    Domain Registration and Management

    • Authoritative DNS server when a domain is registered with Route 53, creating a public hosted zone.
    • For existing domains, create a public hosted zone and update Name Servers without transferring the domain.
    • Changes to Name Servers may take up to 48 hours due to DNS Time To Live (TTL) values.
    • Domains can only be transferred if the Top-Level Domain (TLD) is supported.

    Hosted Zones

    • Hosted zone is a collection of DNS records for a specified domain, similar to a traditional DNS zone file.
    • Two types of hosted zones: public and private; NS and SOA records are automatically created.
    • Multiple hosted zones can share the same name but contain different records.

    Health Checks

    • Health checks verify the availability and functionality of internet-connected resources.
    • Can be pointed at endpoints that are IP addresses or domain names.
    • Various health check types can be created for monitoring resources.

    DNS Record Types

    • Supports multiple DNS record types, including Alias records, which map to AWS resources (e.g., ELB, CloudFront).
    • Alias records allow apex domain name resolution, unlike CNAME records.
    • Wildcard entries supported for all record types except NS records.

    Routing Policies

    • Determine how Route 53 responds to queries; policies include Simple, Failover, Geo-location, Latency, Multi-value Answer, and Weighted Routing.
    • Simple Routing Policy is basic; Failover redirects traffic based on health checks.

    Traffic Flow

    • Global Traffic Management (GTM) feature enables creation of routing policies based on specific criteria like latency and load.
    • Includes versioning for routing policies to maintain change history and rollback options.

    Route 53 Resolver

    • Enables bi-directional DNS querying between on-premises networks and AWS using private connections.
    • Facilitates DNS resolution for hybrid cloud environments.

    Pricing

    • Charges incurred per hosted zone per month without partial month billing.
    • Hosted zones deleted within 12 hours of creation incur no charges.
    • Health checks and specific route types may have varying costs, with some services like Alias records free under certain conditions.

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    Description

    Learn about Amazon Route 53, a highly available and scalable Domain Name System (DNS) service that provides a worldwide distributed DNS service, health checks, and more.

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