Which service should an administrator use to register a new domain name with aws?
Amazon Route 53 is a highly available and scalable cloud Domain Name System (DNS) web service. It is extremely reliable and cost effective way to route end users to Internet applications by translating names like www.example.com into the numeric IP addresses like 192.0.2.1 that computers use to connect to each other. Amazon Route 53 supports both IPv4 and IPv6. Our exam tips on Amazon Route 53 covers all core concepts and topics you need to learn in order to prepare yourself for all three Associate Exams. These are: Show
DNS is used to convert friendly domain names such as https://mycompany.com into an Internet Protocol IP address such as https://8.8.8.8. There are two types if IP Addressing –
Note that IPv6 is now used in Route 53, VPCs and EC2s Top Level Domain NameThe top level domain names are controlled by the Internet Assigned Numbers Authority (IANA) in a root zone database which is essentially a database of all available top level domains. These include things like .com or .net SOA (Start of Authority)The Start f Authority stores basic properties of the domain name and the zone that the domain is in. It contains the following information
Name ServersThese are name server records that are used by Top Level Domain Names servers to direct traffic to other DNS servers which contain authoritative records. For example, you can create a route 53 zone, you will be provided 4 NS records. Next, you need to configure your domain name to point to these NS Records and then you can use Route 53 to manage all your DNS records for the Domain Name. Zone FilesA zone file is a text file that contains a mapping between domain names and IP Addresses. Zone files reside on name servers and define the resources available under a specific domain. Hosted ZoneHosted Zones are collections of resource records sets hosted by Amazon Route 53. Similar to standard DNS zone files, a hosted zone is used to manage records under a single domain name. Hosted zones will have metadata and configuration information. There are two types of hosted zones:
Important Note – CNAME records are not allowed for hosted zones in Amazon Route 53. You need to use Alias Record (See Below) Domain RegistrarsDomain names need to be unique across the Internet. Domain registrars are responsible for ensuring this and management of all domain names. Registrars can associate domain names directly under one or more top-level domains. Route 53 now offers Domain Registration service and management. This is a recent change and so you no longer need to host your domain name with third party registrars and can manage all DNS functions from within Route 53. Route 53 support domain name registrations for both generic TLDs and geographical TLDs. Types of Records
Route 53 Routing PoliciesRoute 53 provides you with 5 different routeing policies. These are:
Simple Routing PolicyDefault routeing policy when you create a new resource. You can use simple routeing policy when you a single resource that performs a given function for your domain. For example, Route 53 will respond to DNS queries based only on the values in the resource record set. E..g responding with the IP address of an A record. There is no additional redundancy or intelligence built in; essentially, you would use it to connect to a single web server for your domain name. Weighted Routing PolicyWeighted Routing enables you to associate multiple resources with a single DNS name. With weighted routing policy, you have multiple resources that perform a function, for example, you host an eCommerce website and you want Amazon Route 53 to direct a certain percentage of traffic to one resource and remaining traffic to another resource. Typical use cases include:
In order to configure weighted routeing you will need to:
Amazon Route 53 will search for a resource record set or groups of resource records sets and select one record from the group using the following formula Weight for a given resource record set Latency Based RoutingYou can route traffic based on the lowest network latency for your end users so that your end users can experience a faster response time. You would use this form of routing when you have resources that serve the same functions located in different availability zones or regions. The typical use case here is where you are trying to ensure that users across the globe get access to your resources as fast as possible regardless of location. That means even if you happen to be equidistant from two load balancers serving the same resources, Amazon Route 53 will direct your traffic to the resource which offers the lowest latency in connectivity . Failover Based RoutingYou can use Amazon Route 53 to configure an active-passive failover. In this configuration, you have a default resource which accepts all traffic and if it happens to fail, then traffic is routed to the alternatively passive resource. When setting up the active resource, you need to configure Amazon Route 53 to monitor the health of your primary endpoints using health checks. Health Checks instruct Amazon Route 53 to send requests to endpoints and you can specify:
Amazon Route 53 then monitors the health of your active resource and if that fails the failover routing policy will be applied and DNS will fail over to your passive resource. The following failover options are available:
Important Note – You cannot create failover resource record sets for private hosted zones! GeoLocationThis type of routing policy enables you to route traffic based on the geographical location of your users. For example, you can configure users in the UK to be directed to resources based on the London Region and users across Europe to be directed to the resources hosted by the Frankfurt Region. This is particularly useful when you want to direct traffic that belongs to a specific geographical area to resources that have been configured specifically for them such as language and currency. Another use case is where you need to ensure that only traffic from certain geographical regions can access your content for example where you have restrictions on distribution rights GeoLocation can be specified by
Geolocation works by mapping IP addresses to the locations and here this can sometimes cause issues, when some IP Address ranges may not be mapped to a specific location. You need to create a default resource record set to handle DNS queries from locations that cannot be identified, or where you do not specify geolocation records sets for. Note that if there is no default resource record set then Amazon Route 53 will return a ‘no – answer’ response for queries from those locations. Health ChecksAmazon Route 53 health checks monitor the health and performance of your AWS resources such as instances. You can specify intervals when Amazon Route 53 submits automated requests over the Internet to your application, server, or other resources to verify that it’s reachable, available and functional. You can also configure an Amazon CloudWatch alarm for each health check. In production environments, you can deploy web servers for example across multiple regions and multiple availability zones. If a health check determines that the underlying resource is unhealthy, Amazon Route 53 routes traffic away to other health resources. Additional Study ResourceIn addition to the above core concepts, tips and keynotes, you must review the AWS Route 53 FAQs and you can also review our additional exam keynotes. 180 Practice Exam Questions – Get Prepared for your Exam Day!Our Exam Simulator with 180 practice exam questions comes with comprehensive explanations that will help you prepare for one of the most sought-after IT Certifications of the year. Register Today and start preparing for your AWS Certified Solutions Architect – Associate Exam. Which AWS service provides domain registration?To register a new domain using Route 53
Sign in to the AWS Management Console and open the Route 53 console at https://console.aws.amazon.com/route53/ . If you're new to Route 53, choose Get started. If you're already using Route 53, in the navigation pane, choose Registered domains.
Which AWS service is used for Domain Name System DNS routing?Amazon Route 53 is a highly available and scalable Domain Name System (DNS) web service. Route 53 connects user requests to internet applications running on AWS or on-premises.
Is Route 53 a domain registrar?It is highly available and gives you the possibility to route your users to different endpoints with different types of policies. Route 53 is also a registrar and you can buy and register a domain but the question is what if you registered your domain in 3rd party website such as Godaddy, Google domain, etc.
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