NSLookUp Quiz

What is the primary function of DNS (Domain Name System)?

• To encrypt internet communications

• To map Internet names to their corresponding IP addresses

• To increase internet speed

• To monitor internet usage

What real-world object/concept can DNS be compared to?

• It is compared to a telephone

• It is compared to a library

• It is compared to a contacts list in a phone

• It is compared to a postal service

Why is DNS compared to a phone contacts list?

• Typing a website's name and getting its IP address

• Clicking on a contact's name to call them without knowing their number

• Sending an email to a friend by typing their name

• Searching for a file in a computer using a search engine

What information can be obtained from researching a domain's DNS records? Select all that apply.

• Mail server info

• All IP addresses for their Internet-connected servers

• Types of software used

• Social Security Number of Registar

What could the information from DNS records potentially be used for?

• Improving SEO rankings

• Starting point for further recon or uncovering vulnerabilities for an attack

• Enhancing website design

• Conducting market research

What is the primary use of nslookup and dig tools in network management?

• To hack into DNS records

• To search the DNS records of a domain

• To create new DNS records

• To delete DNS records

Which operating systems support the nslookup tool?

• Windows only

• Linux only

• Both Windows and Linux

• Neither Windows nor Linux

What is the default type of information returned by the nslookup command when using the 'type' option as 'A'?

• IPv6 address

• Mail server information

• IPv4 address

• DNS records text

Which nslookup type option is used to retrieve information about mail servers?

• SOA

• TXT

• A

• MX

What does the 'SOA' record in nslookup reveal?

• Text included in the DNS records

• IPv6 address information

• Administrator information for a domain

• Mail server details