9. AWS Route 53

What does a Name Server do in the context of DNS?

• It stores website content

• It resolves DNS queries

• It manages email servers

• It provides internet security

What does the 'A' record type in Route 53 do?

• Maps a hostname to IPv6

• Maps a hostname to IPv4

• Maps a hostname to another hostname

• Maps a hostname to a DNS resolver

What is the purpose of a CNAME record in Route 53?

• Maps a hostname to IPv4

• Maps a hostname to IPv6

• Maps a hostname to another hostname

• Maps a hostname to a DNS resolver

What is a Hosted Zone in Route 53?

• A container for DNS records

• A virtual machine instance

• A cloud storage bucket

• A database table

How much does Amazon Route 53 charge per hosted zone?

• $1.00

• $0.50

• $2.00

• $0.25

What is a key difference between a Public Hosted Zone and a Private Hosted Zone in Route 53?

• Public Hosted Zones are used for internal DNS resolution.

• Private Hosted Zones are accessible over the internet.

• Public Hosted Zones are accessible over the internet.

• Private Hosted Zones are used for external DNS resolution.

What is the impact of having a high TTL (Time To Live) for DNS records in Route 53?

• More frequent updates to DNS records.

• Less traffic on Route 53 and possibly outdated records.

• Increased cost due to frequent DNS queries.

• Records are outdated for less time.

Which of the following is true about CNAME records in AWS Route 53?

• CNAME records can be used for root domains.

• CNAME records point a hostname to any other hostname.

• CNAME records are free of charge.

• CNAME records can be used for both root and non-root domains.

Which of the following is NOT a supported Route 53 Routing Policy?

• Simple

• Weighted

• Failover

• Random

In a Simple Routing Policy, what happens if multiple values are returned?

• The first value is always chosen.

• A random one is chosen by the client.

• The last value is always chosen.

• All values are used simultaneously.