Question 1

What is the DNS Server responsible for?

Accepted Answer

Resolving domain names to IP addresses

Answer

Resolving IP addresses to domain names

Answer

Sending emails

Answer

Storing files and databases

Question 2

What is a domain name?

Accepted Answer

A human-friendly name for an IP address

Answer

An email address

Answer

A type of server

Answer

A type of computer

Question 3

What is an IP address?

Accepted Answer

A unique numerical identifier for a device on a network

Answer

A type of computer

Answer

A domain name

Answer

A type of server

Question 4

What is DNS caching?

Accepted Answer

A process where DNS servers store previously resolved IP addresses

Answer

A process where DNS servers replace IP addresses with domain names

Answer

A process where DNS servers block certain websites

Answer

A process where DNS servers encrypt data

Question 5

What is a DNS resolver?

Accepted Answer

A program or server that queries DNS servers to resolve domain names to IP addresses

Answer

A program that sends emails

Answer

A program that creates domain names

Answer

A program that encrypts data

Question 6

What is a DNS zone?

Accepted Answer

A portion of the DNS namespace under the control of a DNS server

Answer

A type of IP address

Answer

A type of computer

Answer

A type of domain name

Question 7

What is a TTL in DNS?

Accepted Answer

A time limit for how long a DNS record should be cached

Answer

A tool for creating DNS records

Answer

A tool for encrypting DNS records

Answer

A tool for blocking DNS queries

Question 8

What is a recursive DNS query?

Accepted Answer

A query where a DNS resolver queries multiple DNS servers to find the IP address for a domain name

Answer

A query where a DNS resolver sends emails

Answer

A query where a DNS server replaces IP addresses with domain names

Answer

A query where a DNS server blocks certain websites

Question 9

What is an authoritative DNS server?

Accepted Answer

A DNS server that stores and provides information about a specific domain name

Answer

A DNS server that stores and provides information about all domain names

Answer

A type of IP address

Answer

A type of domain name

Question 10

What is a forward DNS lookup?

Accepted Answer

A process where a DNS resolver queries DNS servers to find the IP address for a domain name

Answer

A process where a DNS server replaces IP addresses with domain names

Answer

A process where a DNS server blocks certain websites

Answer

A process where a DNS resolver sends emails

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