Route53

Question 1

What are Route53 health checks?

Answer 1

Amazon Route 53 health checks are used to monitor the health and performance of our web applications, web servers, and other resources.

Question 2

What can Route53 health checks monitor?

Answer 2

The health of a specified resource, such as a web server.
The status of other health checks.
The status of an Amazon CloudWatch alarm.

Question 3

True/False. Health checks are separate from records, but are used by records.

Answer 3

True.

Question 4

True/False. Health checkers are not located globally and by default perform their checks every 30 seconds. These checks can be sped up to every 10 seconds for an additional cost.

Answer 4

False. Health checkers ARE located globally and by default perform their checks every 30 seconds. These checks can be sped up to every 10 seconds for an additional cost.

Question 5

What types of hosted zones can you have with Route53?

Answer 5

Private Zones, Public Zones, Split View Zones

Question 6

What are Public Hosted Zones?

Answer 6

A public hosted zone is a container that holds information about how you want to route traffic on the internet for a specific domain that is accessible from the public internet.

Externally register domains can point at the R53 Public Zone.

Question 7

True/False. Public hosted zones are accessibe from both the public internet as well as any VPCs that are configured to allow DNS resolution. They are hosted on 4 name servers provided by Route 53.

Answer 7

True.

Question 8

How are Public hosted zones billed?

Answer 8

There is a monthly cost for hosting a public hosted zone, as well as a small charge for each query made against it.

Question 9

What is Private Hosted Zone?

Answer 9

A private hosted zone is similar to a public hosted zone in how it operates. The big difference obviously, is that a private hosted zone isn’t public.

Instead, a private hosted zone is associated with VPCs and is only accessible in those VPCs that it’s associated with.

Question 10

What is Private Hosted Zone?

Answer 10

A private hosted zone is similar to a public hosted zone in how it operates. The big difference obviously, is that a private hosted zone isn’t public.

Instead, a private hosted zone is associated with VPCs and is only accessible in those VPCs that it’s associated with.

Question 11

What is Split View Hosted Zone?

Answer 11

Split view hosted zones help access an internal version of a website using the same domain name that is used publicly.

This could be useful if you wanted people outside of your organization to view a public version of your website, but wanted to allow those inside of your corporate network to be able to access an internal version of the website.

Question 12

What routing policies does Route53 provide?

Answer 12

Simple Routing
Weighted Routing
Multivalue Routing
Failover Routing
Latency Routing
Geolocation Routing
Geoproximity Routing
IP-based Routing

Question 13

What is a Simple Routing policy?

Answer 13

Used to configure standard DNS resources, with no special Route 53 routing such as weighted or latency. Typically used to route traffic to a single resource, such as a web server.

Question 14

What is a Weighted Routing policy?

Answer 14

Routes traffic to multiple resources based on proportions we specify.

Question 15

What is a Multivalue Routing policy?

Answer 15

Allows us to configure Route 53 to return multiple values, such as IP addresses for our web servers, in response to DNS queries.

Question 16

What is a Failover Routing policy?

Answer 16

Can be used with health checks to route traffic to a primary resource if it is healthy, or a secondary resource if the primary resource is unhealthy.

Question 17

What is a Latency Routing policy?

Answer 17

Used to route users to resources with the lowest latency.

Question 18

What is a Geolocation Routing policy?

Answer 18

Used for regional restrictions, language specific content, or load balancing across regional endpoints. This type of routing doesn’t return the closest records, it returns records that are inside of a relevant location.

Question 19

What is a Geoproxomity Routing policy?

Answer 19

Routes traffic to resources based on the location of our users and our resources. Optionally, biases can also be added. Biases are used to expand or shrink the geographic region from which traffic is routes to a resource.

Question 20

What is a IP-based routing policy?

Answer 20

A new type of routing introduced in 2022. Used to provide granular control on how users should be routed based on their IP addresses.