Tuesday 27 November 2012

Calicut University B.Tech Computer Science and Engineering Cryptography and network security Question paper

Are you looking for the old question papers of calicut university B.Tech Computer Science and Engineering Cryptography and network security ??  Get it from here , Feel free to download the question paper from here and use it to prepare for your upcoming exams.

SEVENTH SEMESTER B.TECH. (ENGINEERING) DEGREE EXAMINATION, JUNE 2009
CSIIT 04 702 -CRYPTOGRAPHY AND NETWORK SECURITY
(2004 Admissions)
Time: Three Hours Maximum : 100 Marks
Answer all questions.
Part A
Each question carries 5marks.
I. (a) What is Euler's totient? Explain.
(b)
Explain on Passive and Active attacks.
(c)
Explain the approaches to attacking RSA algorithm.
(d)
Specify the requirements for hash function.
(e)
Explain the use offair coin flip Algorithm.
(f)
. What ia ...broadcuting?
(g)
Explain_the working principle ofKerberos.
(h)
Describe the transport and tunnel modes of Encapsulating Security Payload. (8 x 5 =40 marks)
PartB
Each question carries 15 marks.
n. (a) (i) Explain how secret keys can be distributed to two communication parties.
(ii) Explain Steganography. (7 + 8 =15 marks)
Or
\ (b) Explain the DES encryption scheme in detail.
m. (a) Discuss in detail about the RSA crypto system.
Or
(b) What is Message authentication code? Explain.

IV.
(a) Explain any two Secret sharing schemes.
Or
(b)
Write short notes on:
(i)
Blind Signatures.
(ii)
Quantum Cyrptography.
(7 + 8 = 15 marks)
V.
(a)
Explain the issues in Web Security.
Or
(b) Explain on:
(i)
Password Selection Strategies.
(ii)
ISO authentication framework.
(7 +8 = 15 marks)
[4 )( 15 = 60 marks1

Calicut University B.Tech Computer Science and Engineering Distributed systems Question paper

Are you looking for the old question papers of calicut university seventh semester  B.Tech Computer Science and Engineering Distributed systems ? ? Get it from here , Feel free to download the question paper from here and use it to prepare for your upcoming exams.

SEVENTH SEMESTER B.TECH. (ENGINEERING) DEGREE
EXAMINATION, JUNE 2009
CSIlT 04 703 -DISTRIBUTED SYSTEMS
(2004 Admissions)
Time : Three Hours Maximum : 100 Marks
Answer all questions.
Part A
Each question carries 5 marks.
1. (a) Give the advantages and disadvantages ofdistributed systems.
(b)
What do you mean by access transparency and concurrency transparency?
(c)
Explain clear synchronization.
(d)
Discuss about Threads and Processes.
(e)
Write on the directory services provided by the distributed system.
(f)
ExPlain briefly the-rDetboda·OfIDter P.niC8M' COmm~.(
g)
Briefly explain Dynamic load sharing.
(h)
Explain the concept of shared memory in distributed systems. (8 )( 5 = 40 marks)
PartB
Each question ca"ies 15 marks.
n. (a) Explain the distributed system architecture.
Or
(b)
Explain the design issues in distributed system.
m.
(a) Write in detail about the features ofconcurrent programming languages.
Or
(b)
Discuss the client-server model ofa distributed system and its protocols.
N.
(a) (i) Explain the requestlreply communication model.
(ll) Discuss an algorithm used to achieve mutual exclusion. (7 + 8 = 15 marks)
Or

(b)
Write short notes on:
(i)
Transaction Communication.
(ii)
Message Passing Communication.
(7 + 8 = 15 marks)
V.
(a)
Describe the real time scheduling and its types.
Or
(b)
Explain the distributed file system implementation and its components.
[4 x 15 = 60 marks]

Calicut University B.Tech Electronics and Communications Engineering Computer programming in c Question paper

Are You Looking old question papers of B.tech ? find here old question paper from calicut university B.Tech Electronics and Communications Engineering Computer programming in c 2008

THIRD SEMESTER B.TECH. (ENGINEERING) DEGREE
EXAMINATION, DECEMBER 2008
CR 04 302-COMPUTER PROGRAMMING IN C
(Common to all except CS, IT, PT)
[2004 Admissions]
Time: Three Hours Maximum: 100 Marks
I.
(a)
What is an algorithm? What are the characteristics necessary for a sequence of instructions
to qualifY as an algorithm ?
(b)
How does a flowchart help a programmer in program development?
(c)
List the relational operators used in C and explain their precedence relationship_
(d)
What is an escape sequence? Explain.
. (e)
State the uses of go to and label statements in C.
(f)
Explain four loop with an example.
(g)
Explain the concept ofpointers and arrays with. an exaI!lple!
(h)
Explain array ofstructures with an example.
(8 x 5 =40 marks)
II.
(a)
What is a system? Why do we refer to a computer as a system? (5 marks)
(b)
Draw flowcharts for the two different structures used for iteration logic. (5 marks)
(c)
What is a generalized algorithm? Why should programs be general in nature? (5 marks)
Or
(a)
What characteristics are desirable for a good computer language? (5 marks)
(b)
What is a self-documenting language? Illustrate with an example. (5 marks)
(c)
Name the three different categories of computer languages. (5 marks)
III.
(a)
Ifyou have access to a computer system with the C compiler, find out the details of the operating
system and special features ofthe compiler.
(5 marks)
(b)
Find errors, ifany, in the following assignment statements and rectify them:
(i) x = y = z = 0.5, 2.0, -5.75 ;
(ii) m =++ a '" 5 ;


(iii) y = sqrt (100) ;
(iv)
p*=xIy
(v)
8 =15;
(vi) Cl = b++ -C *2. (10 marks)
Or
(a)
(i) State the use ofsize ofoperator and how does it work.
(ii) State the use ofmodulers operator and how does it work. (8 marks)
(b)
List the special operators used in C. Explain with examples. (7 marks)
IV. (a) Write a program to generate armstrong number. (5 marks)
(b)
Explain do-while loop with an example. (5 marks)
(c)
Compare and contrast for and do-while loops. (5 marks)
Or
(a)
In what ways does a switch statement differ from an it statement? (5 marks)
(b)
Find errors, if any, in each of the following looping segments. Assume that all the variables have been declared and assigned values :
(i) While (count! = 10) ;
Count = 1;
Sum=sum+x;
Count = count + 1 ;
(ii) name =0 ;
do (name = name + 1 ;
print {(UMy name is John\nU);}
while (name = 1)
(iii) do;
total = total + value;
scan {(liCk f', & value) ;
while (value? =999) ;



(iv) for(X =1, X > 10 ; X =X + 1)
-}
(v)
m = 1
n = 0;
for ( ; m + n < 19 ; ++ n) ;
print f("Hello\n");
m=m+ 10;
(vi)
for(p = 10; p> 0 ;)
P=P-l;
printf("% f', P) ;
(10 marks)
v.
(a)
Assume that the arrays A and B are declared as follows:
int A[5] [4] ;
float B [4] ;
find the errors (if any) in the following program segments.
(i)
for (i = 1 ; i < =5 ; i++)
for (j =1 ; j < = 4 ;j++)
A[i] 111 =0 ;
(ii)
for (i = 1 ; i < 4 ; i++)
Scan f ("% t, B [iD ;
(iii)
for (i =0 ; i < =4 ; i++)
B [i] = B[iJ + i ;
(vi)
for (i =4 ; i > = 0, i --)
for (j =0 ;j < 4 ;j++)
A [iJ 111 =B 111 + 1.0 ;
(8 marks)
(b)
Describe the limitations ofusing getchar and scanffunctions for reading strings. (7 marks)
Or
Turnover
Mets Digital library
Mets Digital library
!
4
D 51466
(a) (b)
Explain the meaning and purpose of the following:(i) Template. (ii) Tag. (iii) Size of. (iv) Struet. Write a program to copy the contents of one file into another.
(8 marks) (7 marks) [4 x 15 =60 marks]