Section 10: Route 53 Flashcards
What is AWS Route 53?
AWS Route 53 is a scalable Domain Name System (DNS) web service designed to provide highly reliable and cost-effective domain registration, DNS routing, and health checking.
True or False: Route 53 can only be used with AWS resources.
False
What are the three main functions of AWS Route 53?
Domain registration, DNS routing, and health checking.
Fill in the blank: Route 53 is designed to provide _____ and cost-effective domain registration.
highly reliable
Which protocol does AWS Route 53 primarily use for DNS queries?
UDP (User Datagram Protocol)
What is a hosted zone in Route 53?
A hosted zone is a container for records that define how to route traffic for a domain and its subdomains.
Multiple Choice: What type of record would you use to point a domain to an IP address? A) CNAME B) A Record C) MX Record
B) A Record
What is the purpose of health checks in Route 53?
Health checks monitor the status of endpoints to ensure traffic is only routed to healthy resources.
True or False: Route 53 can perform DNS failover.
True
What is the maximum number of records you can have in a single hosted zone?
There is no limit on the number of records in a hosted zone, but there is a limit on the number of record sets you can create per account.
Fill in the blank: Route 53 uses _____ to translate domain names into IP addresses.
DNS (Domain Name System)
What is the difference between a public hosted zone and a private hosted zone in Route 53?
A public hosted zone is accessible from the internet, while a private hosted zone is only accessible within one or more VPCs.
Multiple Choice: Which of the following is NOT a type of DNS record supported by Route 53? A) AAAA B) TXT C) JPEG
C) JPEG
What feature does Route 53 offer to help with latency-based routing?
Route 53 uses latency-based routing to direct traffic to the region that provides the lowest latency to the user.
True or False: Route 53 allows for geolocation routing.
True
What is the purpose of a record set in Route 53?
A record set is used to define how Route 53 responds to DNS queries for a specific domain name.
Fill in the blank: Route 53 can be integrated with _____ for managing domain names.
AWS services
How does Route 53 handle DNS queries?
Route 53 answers DNS queries by returning the appropriate record set based on the DNS request.
What is the significance of TTL (Time to Live) in Route 53?
TTL determines how long DNS resolvers cache a DNS record before querying again.
Multiple Choice: Which routing policy would you use to distribute traffic across multiple resources? A) Simple routing B) Weighted routing C) Failover routing
B) Weighted routing
What is an alias record in Route 53?
An alias record allows you to point a domain name to an AWS resource without needing an IP address.
True or False: Route 53 can only manage domains registered with AWS.
False
What is a DNS query?
A DNS query is a request made by a client to a DNS server to resolve a domain name into an IP address.
Fill in the blank: Route 53 supports _____ routing policies to control how traffic is directed.
multiple
What type of routing policy would you use for disaster recovery in Route 53?
Failover routing policy
What does an A record do
Maps hostname to an IP
What does an AAAA record do
maps hostname to IPv6
What does cname do
maps hostname to another hostname
What does a name server do
Server that respond to DNS queries
What domains do cnames work on?
Non Root domains
What domains do alias’s work on?
root and non-root domain
What route 53 record can you not set TTL
Alias
What aws resource cannot be setup with an alias record
EC2 dns name
What routing policy would you use to route traffic to a single resource
Simple
This route 53 health check combines the results of multiple health checks into a single check
Calculated health checks
