Route 53 - Global DNS

Question 1

Is Route 53 globally resilient

Answer 1

Yes

Question 2

container that holds information about how you want to route traffic on the internet for a specific domain, records stored in them are publicly resolvable

Answer 2

Public Hosted Zones

Question 3

container that holds information about how you want Amazon Route 53 to respond to DNS queries for a domain and its subdomains within one or more VPCs

Answer 3

Private Hosted Zone

Question 4

Maps a NAME to an IPv4 or IPv6 address

Answer 4

“A” record (IPv4) “AAAA” record (IPv6)

Question 5

Maps a NAME to another NAME

Answer 5

CNAME record

Question 6

record at the top node of a DNS namespace, also known as the zone apex that maps a NAME to an AWS resource

Answer 6

Alias Record

Question 7

lets you configure standard DNS records, with no special Route 53 routing such as weighted or latency. Resolves your DNS to a resource as is

Answer 7

Simple Routing

Question 8

monitor the health and performance of your web applications, web servers, and other resources

Answer 8

Health Check

Question 9

Are Health Checks seperate from records?

Answer 9

Yes but they are used by records

Question 10

Default health check interval

Answer 10

30 seconds

Question 11

health checker evaluates the health of the endpoint based on two values

Answer 11

response time and failure threshold

Question 12

Whether the endpoint responds to a number of consecutive health checks that you specify

Answer 12

Failure threshold

Question 13

HTTP and HTTPS, TCP, and HTTP and HTTPS with string matching are how health checks determine if an endpoint is healthy or unhealthy

Answer 13

True

Question 14

Health checks can monitor an endpoint, other health checks or monitor CloudWatch alarms

Answer 14

True

Question 15

Routing policy lets you route traffic to a resource when the resource is healthy or to a different resource when the first resource is unhealthy. You can specify two DNS records with the same DNS name and have them point to two different targets

Answer 15

Failover Routing

Question 16

Routing policy to configure Amazon Route 53 to return multiple values, such as IP addresses for your web servers, in response to DNS queries to improve availability

Answer 16

Multi value routing

Question 17

routing policy that lets you associate multiple resources with a single domain name and choose how much traffic is routed to each resource based on the the weights you assign for each target. The greater the weight, the greater the traffic portion it receives

Answer 17

Weighted routing

Question 18

routing policy for when you have resources in multiple AWS Regions and you want to route traffic to the region that provides the fastest performance

Answer 18

latency-based routing

Question 19

Routing policy lets you choose the resources that serve your traffic based on the geographic location of your users, meaning the location that DNS queries originate from. Allows you to restrict distribution of content to only the locations in which you have specified

Answer 19

Geolocation routing

Question 20

routing lets Amazon Route 53 route traffic to your resources based on the geographic location of your users and your resources and, optionally, shift traffic from resources in one location to resources in another

Answer 20

Geoproximity routing

Question 21

When positive, Route 53 treats the source of a DNS query and the resource that you specify in a geoproximity record (such as an EC2 instance in an AWS Region) as if they were closer together than they really are

Answer 21

Bias