Networking Concepts Quiz

What is the primary role of DNS in networking?

• Encrypt data

• Assign IP addresses

• Translate domain names to IP addresses

• Monitor internet traffic

What would happen without DNS?

• Devices won’t connect

• Users would type IP addresses instead of domain names

• All IPs would be hidden

• Browsers would stop working

What is a recursive DNS resolver responsible for?

• Registering IP addresses

• Sending email

• Resolving a DNS query by contacting other servers

• Encrypting DNS traffic

What type of attack sends large DNS replies from small queries?

• DNS Spoofing

• DNS Tunneling

• DNS Amplification

• DNS Brute-forcing

What does a DNS Spoofing attack do?

• Blocks DNS traffic

• Sends a fake DNS reply

• Encrypts DNS queries

• Forces DNS to timeout

How can malware exfiltrate data using DNS?

• DNS Encryption

• DNS Spoofing

• DNS Tunneling

• DNS Broadcasting

What port does DNS typically use?

• 25

• 80

• 443

• 53

Which protocol is faster for normal DNS queries?

• TCP

• SSH

• UDP

• FTP

What is the purpose of the command nmap --script=dns-brute ?

• To update DNS cache

• To brute-force DNS subdomains

• To clear DNS records

• To test DNS encryption

What does DHCP do?

• Routes packets across networks

• Translates domain names

• Assigns IP addresses and settings

• Creates virtual machines