Network Configurations

Question 1

Private IPv4 Class A, starts with

Answer 1

10

Question 2

Private IPv4 Class B, starts with

Answer 2

172.16 - 172.31

Question 3

Private IPv4 Class C, starts with

Answer 3

192.168

Question 4

Loopback Address is

Answer 4

127.x.x.x

127.0.0.1 most used by defaut

Question 5

APIPA address

Answer 5

169.254.x.x

Question 6

Name the methods to do dynamic assignment of IP address

Answer 6

• BOOTP
• DHCP
• APIPA
• ZeroConf

Question 7

Name the items that DHCP provides

Answer 7

• IP address
• Subnet mask
• Default Gateway
• DNS/WINS server

Question 8

DHCP 4 steps:

Answer 8

DORA (the explorer)

1. Discover
2. Offer
3. Request
4. Acknowledge

Question 9

DNS records functions (used for):
A, AAAA, CNAME, MX, NS

Answer 9

A for domain names with IPv4 addresses.
AAAA for domain names with IPv6 addresses.
CNAME to map domain names to other domain names.
MX for emails.
NS for nameservers.

TXT records store text either as human-readable or machine-readable data.

Question 10

Types of VPNs:

Answer 10

• Site to site
• Client to site
• Clientless

Question 11

Methods of communication using a VPN:

Answer 11

• Full Tunnel
• Split Tunnel

Question 12

IPv6 example:

Answer 12

2018 : 0000 : 0000 : 0000 : 0000: 0000 : 4815 : 54ae
Single zero: 2018 : 0 : 0 : 0 : 0 : 0 : 4815 : 54ae
Double colon: 2018 :: 4815 : 54ae

Question 13

NDP
Neighbor Discovery Protocol

Answer 13

is used in IPv6 and it takes a lot of the functions from router advertisement and neighbor discovery and handles them for you