Route53

Question 1

ELBs do not have pre-defined IPv4 addresses. you resolve them using a DNS name

-given the choice, always use an alias over CNAME

Answer 1

yes

Question 2

key difference between alias and cname:

a cname can’t be used for naked domain names (zone apex record). you can’t have a CNAME for http://google.com, it must be either an A record or alias

t or f

Answer 2

t

Question 3

new domain names can take up to 3 days to register in aws

Answer 3

t

Question 4

_____. ____ routing lets you configure route53 to return multiple values, such as IP addresses for yourweb servers, in response to DNS queries. you can specify multiple values for almost any record, but multivalue answer routing also lets you check the health of each resource, so route53 returns only values for healthy resources.

This is similar to simple routing, but it allows you to put health checks on each record set.

Answer 4

multivalue answer