Variable Length Subnet Mask (VLSM)

Question 1

/30

Answer 1

• 64 subnets
• 4 IPs per subnet
• 255.255.255.252

Question 2

/29

Answer 2

• 32 subnets
• 8 IPs per subnet
• 255.255.255.248

Question 3

/28

Answer 3

• 16 subnets
• 16 IPs per subnet
• 255.255.255.240

Question 4

/27

Answer 4

• 8 subnets
• 32 IPs per subnet
• 255.255.255.224

Question 5

/26

Answer 5

• 4 subnets
• 64 IPs per subnet
• 255.255.255.192

Question 6

/25

Answer 6

• 2 subnets
• 128 IPs per subnet
• 255.255.255.128

Question 7

/24

Answer 7

• 1 subnet
• 256 IPs per subnet
  -255.255.255.0