SMU Winter Drive Assignments

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SEM 2 BSCIT WINTER 2014
BT0068, Computer Organization and Architecture
1 Perform the following conversions:
1. (11 101 110)2 = ()8
2. ( 1110 0010 1111) 2 = ()16
3. ( 85)10 = ()2
4. ( 10101)2 = ()10
5. (111.001)2 = ()8
2 Differentiate between primary memory and secondary memory.
3 Explain CPU organization of 8085 microprocessor with diagram.
4 Explain fundamental Computer Architectures.
5 Explain direct and associative mapping functions.
6 Explain any five addressing modes with example.
BT0069, Discrete Mathematics
1 A bit is either 0 or 1: a byte is a sequence of 8 bits. Find the number of bytes that,
(a)can be formed
(b)begin with 11 and end with 11
(c)begin with 11 and do not end with 11
(d)begin with 11 or end with 11.
2 Solve the recurrence relation ar -7ar-1 + l0ar-2 = 0 for n  2 given that a0 = 10, a1 = 41 using
generating functions.
3 Show that R  S can be derived from the premises P  (Q S),  R  P and Q.
4 (i) Define Poset
(ii) Let n be a positive integer and Dn denotes the set of all divisors of n. Consider the partial order
‘divides’ in Dn. Draw the Hasse diagrams for D6,, D24 and D30 .
5 If  is a homomorphism of G into G1 with kernal K, then prove that K is a normal subgroup of G.
6 (i) State the rules of inference
(ii) Consider the following statements:
All men are selfish, All kings are men. Prove that all kings are selfish.
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BT0070, Operating Systems
1 What do you mean by batch operating system? Explain advantages and disadvantages of it.
2 Why do we need threads in designing of OS? Describe similarity and differences between
processes and threads.
3 Explain process state with diagram.

2. 4 Explain the concept of paging with the help of an example.
5 Explain any two basic architectures for multiprocessor interconnections.
6 Explain the methods of directory implementation.
BT0071, Technical Communication
1 Explain meaning of technical writers and also explain its role.
2 What is Audience Analysis? Explain its significance in Technical Communication.
3 Explain any five things that are needed to be kept in mind before interview.
BT0072, Computer Networks
1 What is Computer networking? Explain LAN and WAN.
2 How do you Implement packet switching? Briefly explain.
3 What is the function of data link layer? Explain the services of the data link layer.
4 Explain sliding window protocol.
5 Discuss any two design issues of Session Layer.
6 Explain the types of modes on which IPSec operates.
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