2. Application Layer
Dns — Quiz
Test your understanding of dns with 5 practice questions.
Practice Questions
Question 1
Which type of DNS server is responsible for knowing the authoritative name servers for all top-level domains (TLDs)?
Question 2
What record type in DNS maps a domain name to an IPv4 address?
Question 3
When a DNS query is made, and the recursive resolver already has the answer stored from a previous query, what is this process called?
Question 4
Which of the following describes the function of a 'stub resolver' in the DNS resolution process?
Question 5
What is the primary purpose of a 'PTR record' (Pointer record) in DNS?