Subnetting Flashcards
1
Q
What is the range of first octet addresses for private IP class A?
A
1-126
(Since first octet is 00000000)
2
Q
What is the default subnet mask for private IP class A?
A
255.0.0.0 (/8)
3
Q
What is the range of first octet addresses for private IP class B?
A
128-191
(Since first octet is 10000000)
4
Q
What is the default subnet mask for private IP class B?
A
255.255.0.0 (/16)
5
Q
What is the range of first octet addresses for private IP class C?
A
192-223
(Since first octet is 11000000)
6
Q
What is the default subnet mask for private IP class C?
A
255.255.255.0 (/24)
7
Q
Why is CIDR used now instead of class-based subnetting rules?
A
More efficient address allocation without wasting addresses.
8
Q
What is the backronym for CIDR?
A
Classless interdomain routing.
