Assume that you have been assigned 192.168.111.129/28. 1. How many bits are borr
ID: 3824120 • Letter: A
Question
Assume that you have been assigned 192.168.111.129/28.
1. How many bits are borrowed to create the subnet field?
2. What is the maximum number of subnets that can be created with this number of bits?
3. How many bits can be used to create the host space?
4. What is the maximum number of possible IP addresses in the host space?
5. What is the maximum number of IP addresses that can be actually assigned to a host device in a subnet?
6. What is the subnet mask in binary representation?
7. What is the subnet mask in decimal representation?
8.Please complete the following table for the first 5 subnets
Subnet Number
Subnet Address
Range of IP addresses that can be assigned to a host device
Direct broadcast address
9. What subnet is 192.168.111.49 on?
10. Can a junior network administrator assign 192.168.111.31 as a static IP address for a computer on the network?
YesNo
11. Can 192.168.111.64 be assigned as an IP address to a subnet?
YesNo
Subnet Number
Subnet Address
Range of IP addresses that can be assigned to a host device
Direct broadcast address
Explanation / Answer
Assume that you have been assigned 192.168.111.129/28.
1. How many bits are borrowed to create the subnet field?
Ans. here 4 bit are borrowed.
2. What is the maximum number of subnets that can be created with this number of bits?
Ans. borrowed bits = 4
total subnets = 2^4 = 16
3. How many bits can be used to create the host space?
Ans. 4 bits
4. What is the maximum number of possible IP addresses in the host space?
Ans. 2^4 = 16
5. What is the maximum number of IP addresses that can be actually assigned to a host device in a subnet?
Ans. 2^4 -2 = 16 -2 = 14
6. What is the subnet mask in binary representation?
Ans. 11111111.11111111.11111111.11110000
7. What is the subnet mask in decimal representation?
Ans. 255.255.255.240
9. What subnet is 192.168.111.49 on?
Ans. 192.168.111.48
10. Can a junior network administrator assign 192.168.111.31 as a static IP address for a computer on the network?
YesNo
11. Can 192.168.111.64 be assigned as an IP address to a subnet?
YesNo
Subnet Number Subnet Address Range of IP addresses that can be assigned to a host device Direct broadcast address 1 192.168.111.0 192.168.111.1 - 192.168.111.14 192.168.111.15 2 192.168.111.16 192.168.111.17 - 192.168.111.30 192.168.111.31 3 192.168.111.32 192.168.111.33 - 192.168.111.46 192.168.111.47 4 192.168.111.48 192.168.111.49 - 192.168.111.62 192.168.111.63 5 192.168.111.64 192.168.111.65 - 192.168.111.88 192.168.111.89