What type of Route 53 alias could be set?
Amazon Route 53 also offers alias records, which are an Amazon Route 53-specific extension to DNS. You can create alias records to route traffic to selected Amazon Web Services resources, including Amazon Elastic Load Balancing load balancers, Amazon CloudFront distributions, VPC interface endpoints.
What is the TTL value within the Route 53 service?
TTL (seconds) If you specify a longer value (for example, 172800 seconds, or two days), you reduce the number of calls that DNS recursive resolvers must make to Route 53 to get the latest information in this record. This has the effect of reducing latency and reducing your bill for Route 53 service.
What is TTL AWS Route 53?
The time for which a DNS resolver caches a response is set by a value called the time to live (TTL) associated with every record. Amazon Route 53 does not have a default TTL for any record type.
How do I create alias record in Route 53?
AWS A Record Alias via AWS Route 53 Console Click on the Resource Record (the A Record) for the Domain/Sub-Domain you would like to edit. On the right hand corner of the screen, you get to edit the Record Set. Type for this record will remain as “A — IPv4 address”. But, in the Alias: section, choose “Yes”.
Which three main functions does Amazon Route 53 perform select all responses that apply Group of answer choices?
Amazon Route 53 is a highly available and scalable Domain Name System (DNS) web service. You can use Route 53 to perform three main functions in any combination: domain registration, DNS routing, and health checking. Your website needs a name, such as example.com.
What is CNAME and alias in Route 53?
Amazon Route 53 alias records provide a Route 53–specific extension to DNS functionality. Unlike a CNAME record, you can create an alias record at the top node of a DNS namespace, also known as the zone apex. For example, if you register the DNS name example.com, the zone apex is example.com.
What is a Route 53 record set?
When Amazon Route 53 receives a DNS query for a domain name and type for which you have created latency resource record sets, Route 53 selects the latency resource record set that has the lowest latency between the end user and the associated Amazon EC2 Region.
What is difference between CNAME and Alias?
Understanding the differences The CNAME record maps a name to another name. It should only be used when there are no other records on that name. The ALIAS record maps a name to another name, but can coexist with other records on that name.
What is Route 53 alias record?
Amazon Route 53 alias records provide a Route 53–specific extension to DNS functionality. Alias records let you route traffic to selected AWS resources, such as CloudFront distributions and Amazon S3 buckets. They also let you route traffic from one record in a hosted zone to another record.
What TTL value does Route 53 use for Alias Records?
If an alias record points to another record in the same hosted zone, Route 53 uses the TTL of the record that the alias record points to. For more information about the current TTL value for Elastic Load Balancing, go to Request routing in the Elastic Load Balancing User Guide and search for “ttl”.
Does Route 53 respond to DNS queries using the Alias Resource?
If the health check status is healthy, Route 53 considers the alias resource record set to be healthy and includes the alias record among the records that it responds to DNS queries with. If the health check status is unhealthy, Route 53 stops responding to DNS queries using the alias resource record set.
What is the difference between a and Route 53 CNAME records?
A CNAME record redirects DNS queries for a record name regardless of record type, such as A or AAAA. Route 53 responds to a DNS query only when the name of the alias record (such as acme.example.com) and the type of the alias record (such as A or AAAA) match the name and type in the DNS query.
What is Route 53 and how does it work?
Route 53 responds to the first DNS query with the name of the record that you want to redirect to. Then the DNS resolver must submit another query for the record in the first response to get information about where to direct traffic, for example, the IP address of a web server.