Quick Answer: What Are The Two Different Types Of DNS Requests?

There are three types of queries in the DNS system:

  • Recursive Query.
  • Iterative Query.
  • Non-Recursive Query.
  • DNS Resolver.
  • DNS Root Server.
  • Authoritative DNS Server.

What are the two types of DNS?

What are the different types of DNS server? All DNS servers fall into one of four categories: Recursive resolvers, root nameservers, TLD nameservers, and authoritative nameservers.

What are the two different types of DNS requests quizlet?

What are the two types of DNS requests? What do they each do? Recursive Query – Query that demands a resolution or the answer that it can’t be found. Iterative Query – Query that does not demand a resolution.

What are the different types of DNS records?

DNS Record types

  1. A (Host address)
  2. AAAA (IPv6 host address)
  3. ALIAS (Auto resolved alias)
  4. CNAME (Canonical name for an alias)
  5. MX (Mail eXchange)
  6. NS (Name Server)
  7. PTR (Pointer)
  8. SOA (Start Of Authority)

What is a DNS request?

A DNS query (also known as a DNS request) is a demand for information sent from a user’s computer (DNS client) to a DNS server. In most cases a DNS request is sent, to ask for the IP address associated with a domain name.

Is DNS a protocol?

(Although many people think “DNS” stands for “Domain Name Server,” it really stands for “Domain Name System.”) DNS is a protocol within the set of standards for how computers exchange data on the internet and on many private networks, known as the TCP/IP protocol suite.

What is the purpose of DNS?

Domain Name Servers (DNS) are the Internet’s equivalent of a phone book. They maintain a directory of domain names and translate them to Internet Protocol (IP) addresses. This is necessary because, although domain names are easy for people to remember, computers or machines, access websites based on IP addresses.

What is the first step in the DNS lookup process?

Process

  • Step 1: Requesting Website Information. First, you visit a website by typing a domain name into a web browser.
  • Step 2: Contact the Recursive DNS Servers.
  • Step 3: Query the Authoritative DNS Servers.
  • Step 4: Access the DNS Record.
  • Step 5: Final DNS Step.
  • Authoritative DNS Server.
  • Recursive Nameserver.

What is the first step in the DNS name resolution process?

How does DNS work?

  1. Step 1: Request information.
  2. Step 2: Ask the recursive DNS servers.
  3. Step 3: Ask the root name servers.
  4. Step 4: Ask the TLD name servers.
  5. Step 5: Ask the authoritative DNS servers.
  6. Step 6: Retrieve the record.
  7. Step 7: Receive the answer.

What is the purpose of a DNS server quizlet?

Terms in this set (33) Each domain contains resource records that contain host names, IP addresses and other information. DNS queries retrieve information from a domain. DNS server service that maintains DNS information.

What is the most common record type in DNS?

Common DNS records and their uses

  • The A record is one of the most commonly used record types in any DNS system.
  • The MX record, which stands for “mail exchange”, is used to identify mail servers to which mail should be delivered for a domain.
  • An NS record identifies which DNS server is authoritative for a particular zone.

What is the difference between an A record and a Cname?

There are important differences between these two records. The CNAME record points a name to another name instead of to an IP. An A record points a name to an IP . A CNAME record can point a name to another CNAME or to an A record.

What TTL means?

Time-to-live

How does a DNS request work?

Normally a DNS Query is a request sent from a DNS Client to a DNS Server, asking for the IP Address related with a Fully Qualified Domain Name (FQDN). When a DNS Client needs to find the IP Address of a computer known by its Fully Qualified Domain Name (FQDN), it queries DNS servers to get the IP Address.

How does a DNS work?

The Domain Name System (DNS) is the phonebook of the Internet. Web browsers interact through Internet Protocol (IP) addresses. DNS translates domain names to IP addresses so browsers can load Internet resources. Each device connected to the Internet has a unique IP address which other machines use to find the device.

What is DNS and its purpose?

Domain Name Servers (DNS) are the Internet’s equivalent of a phone book. They maintain a directory of domain names and translate them to Internet Protocol (IP) addresses. This is necessary because, although domain names are easy for people to remember, computers or machines, access websites based on IP addresses.

What layer is DNS?

In OSI stack terms, DNS runs in parallel to HTTP in the Application Layer (layer 7). DNS is in effect an application that is invoked to help out the HTTP application, and therefore does not sit “below” HTTP in the OSI stack. DNS itself also makes use of UDP and more rarely TCP, both of which in turn use IP.

What is default gateway IP?

Ad. In the networking world, a default gateway is an IP address that traffic gets sent to when it’s bound for a destination outside the current network. On most home and small business networks—where you have a single router and several connected devices—the router’s private IP address is the default gateway.

How do I find out what my DNS server is?

To see your DNS servers, run ipconfig /all and scroll up to find the “DNS Servers” line. The first IP address is your primary server and the second is your secondary. DNS servers show up only when you include the /all option.