1.4 SUBNETTING and IP ADDRESSING Flashcards
1
Q
What do you use to find the number of network IDs for a subnet?
A
2^x
x = number of borrowed host bits
2
Q
What do you use to find the number of useable host IP addresses for a subnet?
A
2^y -2
y = number of bits leftover from network portion
3
Q
What is VLSM?
A
Variable Length Subnet Masking, it is the subnetting of subnets, allowing variable number of hosts on each subnet.
4
Q
What is required for VLSM?
A
Any modern routing protocol such as RIPv2, IS-IS, BGP, EIGRP, OSPF.
5
Q
What is significant about /30?
A
It is used for point-to-point connections due to only having two useable host addresses.
6
Q
2^0
A
1
7
Q
2^1
A
2
8
Q
2^2
A
4
9
Q
2^3
A
8
10
Q
2^4
A
16
11
Q
2^5
A
32
12
Q
2^6
A
64
13
Q
2^7
A
128
14
Q
2
A
2^1
15
Q
1
A
2^0
