Chapter 8: The Domain Name System and Network Routing: Amazon Route 53 and Amazon CloudFront
- 1. A. Name servers resolve IP addresses from domain names, allowing clients to connect to resources. Domain registration is performed by domain name registrars. Routing policies are applied through record sets within hosted zones.
- 2. C. A domain is a set of resources identified by a single domain name. FQDN stands for fully qualified domain name. Policies for resolving requests are called routing policies.
- 3. D. The rightmost section of an FQDN address is the TLD. aws. would be a subdomain or host, amazon. is the SLD, and amazon.com/documentation/ points to a resource stored at the web root of the domain server.
- 4. A. CNAME is a record type, but it’s not a category. TTL, record type, and record data are all category names.
- 5. C. An A record maps a hostname to an IPv4 IP address. NS records identify name servers. SOA records document start of authority data. CNAME records define one hostname...
