The document is a standardized question paper for a data communication and networking course, revised in June 2014, comprising a total of 100 marks and 3 hours duration. It includes seven sections with compulsory questions covering topics such as signal types, network topologies, protocol structures, error detection mechanisms, media types, routing algorithms, and IPv6. Students are instructed to attempt specific sets of questions, with diagrams encouraged where applicable.

1. D a t a C o m m u n i c a t i o n a n d N e t w o r k i n g S t a n d a r d s
Q u e s t i o n P a p e r ( J u n e – 2 0 1 4 ) [ R e v i s e d C o u r s e ]
1 | Page
M u m b a i B . S c . I T S t u d y
F a c e b o o k | T w i t t e r | I n s t a g r a m | G o o g l e + | Y o u T u b e
– Kamal T.
Time: 3 Hours Total Marks: 100
N.B.: (1) All Questions from 1 to 7 are Compulsory.
(2) Attempt any 3 sub questions out of 4 from Q.2 – Q.7.
(3) Draw neat and labelled diagram whenever necessary.
Q.1 Attempt Both The Question: (10 Marks)
(A) What is Signal? Explain Digital Signal in detail. (5)
(B) Explain Bus and Ring Topology. (5)
Q.2 Attempt Any Three From The Following: (15 Marks)
(A) Explain Signal Propagation. (5)
(B) Explain the concept of Fourier Analysis. (5)
(C) Explain Data Transmission Rate and Bandwidth. (5)
(D) Define Analog Signal. Describe the various characteristics of the Analog Signal. (5)
Q.3 Attempt Any Three From The Following: (15 Marks)
(A) Explain structure of an IPv4 Address with example. (5)
(B) Explain the functionalities of OSI Data Link Layer and Application Layer. (5)
(C) Write a short note on TCP/IP Protocol Suite. (5)
(D) State the various design issues of OSI Reference Model. (5)
Q.4 Attempt Any Three From The Following: (15 Marks)
(A) What is CRF? How can you use it for Error Detection? (5)
(B) Explain Error with its types in detail. (5)
(C) Explain Hamming Distance with example. (5)
(D) What is Checksum? Explain with example. (5)
Q.5 Attempt Any Three From The Following: (15 Marks)
(A) What do you mean by Guided and Unguided Media? Explain. (5)
(B) Write short note on Digital to Analog Conversion. (5)
(C) Explain the process of Digital to Analog Conversion. (5)
(D) Write short note on Transmission Impairment. (5)

2. D a t a C o m m u n i c a t i o n a n d N e t w o r k i n g S t a n d a r d s
Q u e s t i o n P a p e r ( J u n e – 2 0 1 4 ) [ R e v i s e d C o u r s e ]
2 | Page
M u m b a i B . S c . I T S t u d y
F a c e b o o k | T w i t t e r | I n s t a g r a m | G o o g l e + | Y o u T u b e
– Kamal T.
Q.6 Attempt Any Three From The Following: (15 Marks)
(A) What is Routing? Explain any on Routing Algorithm. (5)
(B) Distinguish between Circuit Diagram and Packet Switching. (5)
(C) Explain Mesh Topology in detail with advantages and disadvantages. (5)
(D) Write a short note on Virtual Circuit Packet Switching. (5)
Q.7 Attempt Any Three From The Following: (15 Marks)
(A) What is the need of IPv6? (5)
(B) Explain IPv6 Header Format? (5)
(C) Explain IPv6 Addresses. (5)
(D) Explain the concept of Dynamic Host Configuration Protocol (DHCP). (5)