Subnet Masks and Wildcard Masks

Question 1

For an IPv4 octet with 8 bits - give the netmask and wildcard mask

Answer 1

Netmask: 255, Wildcard 0

Question 2

For an IPv4 octet with 7 bits - give the netmask and wildcard mask

Answer 2

Netmask: 254, Wildcard 1

Question 3

For an IPv4 octet with 6 bits - give the netmask and wildcard mask

Answer 3

Netmask: 252, Wildcard 3

Question 4

For an IPv4 octet with 5 bits - give the netmask and wildcard mask

Answer 4

Netmask: 248, Wildcard 7

Question 5

For an IPv4 octet with 4 bits - give the netmask and wildcard mask

Answer 5

Netmask: 242, Wildcard 15

Question 6

For an IPv4 octet with 3 bits - give the netmask and wildcard mask

Answer 6

Netmask: 224, Wildcard 31

Question 7

For an IPv4 octet with 2 bits - give the netmask and wildcard mask

Answer 7

Netmask: 192, Wildcard 63

Question 8

For an IPv4 octet with 1 bit - give the netmask and wildcard mask

Answer 8

Netmask: 128, Wildcard 127

Question 9

For an IPv4 octet with 0 bits - give the netmask and wildcard mask

Answer 9

Netmask: 0, Wildcard 255