DNS/DHCP, Resource Records

Question 1

A records

Answer 1

Used by IPv4
contains domain name and address

Question 2

AAAA records

Answer 2

Used by IPv6
contains domain name and address

Question 3

Function of Mail Exchanger (MX)

Answer 3

identifies host name of email server
requires MX & A records

Question 4

Function of Text Records (TXT)

Answer 4

Storage of text information
used for verification
used for email security

Question 5

Function of Domain Keys Identified Mail (DKIM)

Answer 5

digital signature for leaving mail

Question 6

Function of Sender Policy Framework (SPF)

Answer 6

a list of approved email servers that your domain can send mail to
checks if mail is from an authorized host

Question 7

function of Domain based Message Authentication Reporting and Conformance (DMARC)

Answer 7

extension use to prevent email spoofing

Question 8

What is a DHCP leases

Answer 8

temporary IP addresses that have been assigned by DHCP

Question 9

What is a DHCP Reservation

Answer 9

an address that is remembered by DHCP

Question 10

What is a DHCP Scope

Answer 10

a single pool of ip addresses

Question 11

What is Virtual LAN (VLAN)

Answer 11

A broadcast domain for all devices, but the seperation came from the switch iteslf

Question 12

Function of a Virtual Private Network (VPN)

Answer 12

Encrypts data will browsing a public network