Programming & Computer Science Answers

 Discuss the IPv4 Datagram with the help of suitable examples

Compare and contrast the medium access protocols and elaborate any one of them

Error control and Flow control is critical in effective frame transfer in a data link layer. Discuss the types of errors in detail and suggest suitable solutions for the same

Compare the Go-back N protocol with the rest of the protocols for effective frame transmission in Data link Layer

Elaborate in detail the transition strategies from the IPv4 to the IPv6 with the help of a

suitable example

An organization is granted a block of addresses with the beginning address

150.25.0.0/24. The organization needs to have 3 subblocks of addresses to use in its three

subnets: one subblock of 11 addresses, one subblock of 40 addresses, and one subblock of

125 addresses. Design the network and plot it completely with respective subnets, IP range,

Network IDs

a) Create a java project named school

b) Add two classes, namely student and lect

c) In student class, create the following methods:

i. calculate_stud_age – This method should take year of birth of the student as a

parameter and calculate and return the student’s age

ii. calculate_ave_mark – This method should take three marks of the student ,

Math, English and Physics marks as parameters and return the average mark.

d) In the lect class, create the following methods:

i. get_name – This method should take a string (name of the lect) and

an integer (experience of the lect in years). This method should

output the name of the Lect together with his designation

based on the years of experiences determined by the following:

Professor – if experience is >= 20 years

Associate professor – if experience is >=15 years

Senior lecturer – if experience is >= 10 years

Associate lecturer – if experience is >=5 years

Junior lecturer – if experience is <5 years

based on packet switching and routing as well as te other problems of media resistance and interference.discuss the network performance characteristics

Q3: A network is given as 190.28.0.0/16. Eight subnets are to be created.

(a) What will be the CIDR network prefix?

(b) Express last subnet in dotted decimal notation with mask.

(c) What is the maximum number of hosts in each subnet?

(d) What is the address range for hosts in second subnet?

(e) What is the subnet broadcast address for the first subnet?(10 marks)

Q2: (a) Two 8 bit numbers in a hexadecimal are 05 and 06. Obtain the checksum. (5 marks )    

(b) Explain in detail each field of IPv6 header. (5 marks)