VLSM

Select all that are correct about a router

• Each side of a router is a different broadcast domain

• Routers extend broadcast domains

• Routers separate broadcast domains

• Each side of a router is a different subnet

What is the size of a /24 sub-net ?

• 24

• 256

• 253

• 240

What is the range of a 192.168.1.0/25 sub-net ?

• 192.168.1.0 - 192.168.1.128

• 192.168.1.1 - 192.168.1.127

• 192.168.1.0 - 192.168.1.127

• 192.168.1.1 - 192.168.1.128

What is the dotted decimal representation of a /28 network ?

• 255.255.255.0

• 255.255.255.252

• 255.255.255.248

• 255.255.255.240

What is the usable IP range in 192.168.1.128/25 network ?

• 192.168.1.128 - 192.168.1.255

• 192.168.1.129 - 192.168.1.254

• 192.168.1.128 - 192.168.1.254

• 192.168.1.129 - 192.168.1.255

Each time you use or create an IP subnet, there are two IP addresses in the range which cannot be allocated as usable IP addresses, the first address identifies

• broadcast address

• netmask

• gateway

• the subnet

The place to buy IP address ranges in the Asia/Pacific region is called

• NIC

• DARP

• APNIC

• LUG

How would you divide the subnet 98.11.12.0/24 into four equal sized networks ?

• 98.11.12.0/25, 98.11.12.64/25, 98.11.12.128/25, 98.11.12.192/25

• 98.11.12.0/26, 98.11.12.64/26, 98.11.12.128/26, 98.11.12.192/26

• 98.11.12.0/27, 98.11.12.64/27, 98.11.12.128/27, 98.11.12.192/27

• 98.11.12.0/28, 98.11.12.64/28, 98.11.12.128/28, 98.11.12.192/28

What is the subnet id, first usable IP address, last usable IP address and the broadcast address of subnet 98.11.12.0/24 ?

• 98.11.12.1, 98.11.12.2, 98.11.12.255, 98.11.12.256

• 98.11.12.1, 98.11.12.2, 98.11.12.254, 98.11.12.255

• 98.11.12.0, 98.11.12.1, 98.11.12.255, 98.11.12.256

• 98.11.12.0, 98.11.12.1, 98.11.12.254, 98.11.12.255

What is the next IP address that comes after 11.12.23.255?

• 11.12.23.0

• 11.12.23.256

• 11.12.24.0

• 11.12.24.256