What does DNS stand for?

• Domain Name System

• Dynamic Network System

• Digital Network Security

• Data Naming Service

What is the main function of DNS?

• Resolving IP addresses to names

• Providing security for websites

• Translating numbers to letters

• Creating directories for computers

What do IP addresses consist of?

• Symbols

• Numbers

• Letters

• Special characters

What is the purpose of DNS in relation to the internet?

• To convert names to numbers

• To design websites

• To block access to websites

• To track user activity

How does DNS help in browsing the internet?

• By translating domain names to IP addresses

• By encrypting data transfers

• By blocking access to certain websites

• By creating virtual private networks

Ping is the primary TCP/IP command used to troubleshoot connectivity, reachability, and name resolution. Which OS cannot run the command?

• Linux

• Windows

• MacOS

• Android

Which of the following online tools is NOT belong with the group?

• WhatisMyIP.com

• iplocation.net

• command prompt

• mxtoolbox.com

How do spammers often avoid reverse lookups?

• By using hijacked machines

• By using dynamically assigned IP addresses

• By using static IP addresses

• By using VPNs

Why do email servers commonly use reverse lookups?

• To verify the legitimacy of incoming messages

• To encrypt the messages

• To block all incoming messages

• To increase server speed

What is a Reverse DNS lookup?

• A DNS query for the IP address associated with a domain name

• A DNS query for the domain name associated with an IP address

• A type of encryption method

• A method for securing network connections