1. An insurance company branch has 8 staff members working on their standalone systems. The printers and scanners are connected with the branch manager's computer. Every staff member using the branch manager's system for printing and scanning services. To print and scan branch manager need to present there for keying in the password. Now, company wants to connect all the system through networking. Design a network for the company based on the following conditions:

a. Branch Manager has full control over all the resources.

b. All the staff members can access the resources connected to the branch manager's system.

c. Company also wants to recruit some more field staff. For field staff daily attendance and other works, they add 3 more systems in the network. d. All the new three system are not allowed to access the any other network resources but can be accessed by the branch manager's system

2) An 8-bit byte with binary value 11001101 is to be encoded using an even-parity Hamming code. What is the binary value after encoding?

3) A bit stream 10101010 is transmitted using the standard CRC method. The divisor is 1101. Show the actual bit string transmitted. Suppose the second bit from the left is inverted during transmission. Show that how this error is detected by the receiver?