DNS Quiz

Can you define what DNS is?

• Domain Name Servers

• Domain Name System

• Domain Notation system

• Domain Notation Server

Answer explanation

DNS is short for domain name system. DNS translates domain names into IP addresses of websites and computers.

This transformation makes internet addresses easier to remember, which can eventually increase the efficiency of different working processes

What DNS zones are there?

• Primary, Secondary and Stub Zones

• First, Second and third zones

• Primary, Secondary and Backup Zones

• Primary, second and third Zone

Answer explanation

There are three types of DNS zones that we typically utilise. These zones include the primary zone, the secondary zone and the stub zone. Each of these zones has its own functions, and we use them on different occasions.

How many record types are there?

• 8

• 7

• 9

• 6

Answer explanation

There is 8 types of records:

A Record

AAAA Record

MX Record

CNAME Record

NS Rescord

Txt Record

PTR Record

CERT Record

How many look-up zones are in DNS?

• 2

• 3

• 1

• 4

Answer explanation

There is both a forward and a reverse lookup zone,

Forward lookup takes the domain and resolves this to an IP address,

A reverse lookup takes the IP address and resolves it to the domain nme.

What is Round Robin DNS?

• Allows you to point the same address to different Ip addresses

• Allows you to point different names to the same address

Answer explanation

Round Robin DNS is a method used for the load distribution of DNS requests against a domain name.

Why would you spoof a DNS entry?

• To Steal Login infomation

• To market the company

• To update old records

• To spread Virus's

What is TTL when configuring DNS

• Tasty Tango Lime

• Time to Live

• Transistor Transistor Logic

• Triangle Tipped Log

DNS servers use _____ servers to help resolve IP addresses to Domain Names

• Authentication servers

• Caching servers

• IP servers

• Authoritative servers

A staff member has changed the Email DNS record and this is now incorrect,

What Record type would you update to fix this?

• MX

• A

• CNAME

• PTR

What is Caching Only Server?

• A server that only caches and relays the correct addresses

• A server that changes the record and Caches the awnser

• A server that only contacts the Name servers for answers

• A server that pretends to be a name server