What type of DNS record is used for resolving an IP address to a hostname?

Name Server records (NS Record)—specifies that a DNS Zone, such as “example.com” is delegated to a specific Authoritative Name Server, and provides the address of the name server. Reverse-lookup Pointer records (PTR Record)—allows a DNS resolver to provide an IP address and receive a hostname (reverse DNS lookup).

Which DNS record type maps an IP address to a hostname and is used most often for DNS lookups?

The A-record is the most basic and the most commonly used DNS record type. It is also known as a DNS host record, stores a hostname and its corresponding IPv4 address. It is used to translate human friendly domain names such as www.example.com into IP-addresses such as 93.184. 216.34 (machine friendly numbers).

What are the 4 types of DNS?

All DNS servers fall into one of four categories: Recursive resolvers, root nameservers, TLD nameservers, and authoritative nameservers.

Which of the following DNS resource record types associate a host name to an IP address?

The A records maps an IPv4 (32-bit) DNS host name to an IP address. This is the most common resource record type. The AAAA records maps an IPv6 (128-bit) DNS host name to an IP address. The MX record identifies servers that can be used to deliver e-mail.

What is DNS how you resolve DNS types of DNS records?

DNS servers store records. When a DNS query is sent by a device, that query gets a response from those records with the help of DNS servers and resolvers. There are eight records that you see again and again: A, AAAA, CNAME, PTR, NS, MX, SOA, and TXT. We’ll focus here on those.

What is AAAA DNS record?

AAAA records are DNS records that use an IP address to connect a domain to a website, and can be added to your domain at any time. They are similar to A records, but AAAA records point to 128–bit/IPv6 addresses, instead of the IPv4 addresses used by A records.

What is DNS A record?

What is a DNS A record? The “A” stands for “address” and this is the most fundamental type of DNS record: it indicates the IP address of a given domain. For example, if you pull the DNS records of cloudflare.com, the A record currently returns an IP address of: 104.17. 210.9. A records only hold IPv4 addresses.

What DNS record maps a hostname to another hostname?

The CNAME Record
The CNAME Record is typically used alongside other types of DNS Records – A Records and ALIAS Records. An A Record maps a hostname to one or more IP addresses, while the CNAME record maps a hostname to another hostname.

Which type of DNS record is responsible for a name to name mapping?

The “PTR” record stands for Pointer Record. This DNS syntax is responsible for mapping an Ipv4 address to the CNAME on the host. The “NS” record stands for Name Server and it indicates which Name Server is authoritative for the domain.

What is www CNAME record?

A Canonical Name or CNAME record is a type of DNS record that maps an alias name to a true or canonical domain name. CNAME records are typically used to map a subdomain such as www or mail to the domain hosting that subdomain’s content.