5. Convert the IPv4 address whose hexadecimal representation is A44FFIBC to dotted

decimal notation. (10p)

6. A network on the Internet has a subnet mask of 255.255.240.0. What is the maximum

number of hosts it can handle? (5p)

7. A large number of consecutive IP address are available starting at 198.16.0.0. Suppose that

four organizations, A, B, C, and D, request 4000, 2000, 4000, and 8000 addresses,

respectively, and in that order. For each of these, give the first IP address assigned, the last

IP address assigned, and the mask in the w.x.y.z/s notation. (10p)

8. Why does UP exist? Would it not have been enough to just let user processes send raw IP

packets? (Sp)

9. The first piece of code contains a server program that provides a service to a certain

application, what is it? Describe the code by adding comments to each line? (10p)

10. The second piece of code contains a protocol that allows unidirectional data flow over an

unreliable channel, which Protocol is that? Describe the code by adding comments to each

line? (15p)

5. Convert the IPv4 address whose hexadecimal representation is A44FF1BC to dotted decimal notation. (10p) 6. A network on the Internet has a subnet mask of 255.255.240.0. What is the maximum number of hosis it can handle? (5p) 7. A large number of consecutive IP address are available starting at 198.16.0.0. Suppose that four organizations, A,B,C, and D, request 4000,2000,4000, and 8000 addresses, IP address assigned, that order. For each of these, give the first IP address assigned, the last 8. Why does UDP exist? Wo mask in the w.x.y.z/s notation. (10p) packets? (5p) veen enough to just let user processes send raw IP application, what code contains a server program that provides a service to a certain 10. The second piece of code contains a protocol that ading comments to each line? (10p) unreliable channel, which Protocol is protocol that allows unidirectional data flow over an line? (15p) channel, which Protocol is that? Describe the code by adding comments to each 5. Convert the IPv4 address whose hexadecimal representation is A44FF1BC to dotted decimal notation. (10p) 6. A network on the Internet has a subnet mask of 255.255.240.0. What is the maximum number of hosis it can handle? (5p) 7. A large number of consecutive IP address are available starting at 198.16.0.0. Suppose that four organizations, A,B,C, and D, request 4000,2000,4000, and 8000 addresses, IP address assigned, that order. For each of these, give the first IP address assigned, the last 8. Why does UDP exist? Wo mask in the w.x.y.z/s notation. (10p) packets? (5p) veen enough to just let user processes send raw IP application, what code contains a server program that provides a service to a certain 10. The second piece of code contains a protocol that ading comments to each line? (10p) unreliable channel, which Protocol is protocol that allows unidirectional data flow over an line? (15p) channel, which Protocol is that? Describe the code by adding comments to each