DNS Flashcards Preview

CompTIA N+ N10-006 > DNS > Flashcards

Flashcards in DNS Deck (13)
Loading flashcards...
1

What is DNS?

Domain Name System

2

What is the DNS cache used for on the server side?

Storing information learned from another DNS server to temporarily negate additional requests
(Client-Server relationship)

3

What are the DNS record types?

A, AAAA, MX, CNAME, PTR

4

What does DNS A record stand for?

Address Record
IPv4

5

What does DNS AAAA record stand for?

Address Record
IPv6

6

What does DNS MX record stand for?

Mail Exchange
(email servers)

7

What does DNS CNAME record stand for?

Canonical Name Record
Alias from one name to another
gogle.com > google.com

8

What does DNS PTR record stand for?

Pointer Record
Reverse lookup (IP address > name)

9

What is Dynamic DNS?

Mapping a fixed name to a changing public IP address
Router behind the IP is reporting it's new IP to a dynamic DNS serveer

10

What is the windows command to view DNS cache?

ipconfig /displaydns

11

What is the windows command to delete the DNS cache?

ipconfig /flushdns

12

What is the windows command to resolve an IP address from an address?

nslookup

13

What is the windows command to specify the DNS resolution record type?

nslookup
set type=