smu bca fall 2017 Ist sem assignment help

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STUDENT NAME:-
ROLL NO:-
ASSIGNMENT DRIVE - fall 2017
PROGRAM - Bachelor of Computer Application BCA
SEMESTER - I
SUBJECT CODE & NAME - BCA111 Fundamentals of IT & Programming
BK ID B1475 NUMBER OF ASSIGNMENTS, CREDITS & MARKS - 1, 2 Credits & 30 marks


Q1 Explain Software Testing Strategy. 10
Answer:-
Software Testing Strategy
This strategy defines the role of software and leads to software requirements analysis, where the information domain, function,

Q2 What is OSI reference model? 10
Answer:-
OSI Reference Model
The layered model that dominated data communications and networking literature before 1990 was the Open Systems Interconnection (OSI) model. Everyone believed that the OSI model would become the ultimate standard for

Q. 3 Explain the characteristics of computers. 10
Answer:-
The characteristics of a computer are:
1. Speed
The computer is a very high speed electronic device. The operations on the data inside the computer are performed through electronic circuits according to the given instructions. The data and instructions flow along these circuits

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DRIVE
fall 2017
PROGRAM
Bachelor of Computer Application-BCA
SEMESTER
I
SUBJECT CODE & NAME
BCA112 Programming in C

Assignment Set -1
1 What is the basic structure of C Program?

Answer: Structure of C Program
i) Starting of main function
The compulsion function is the main function that would be done as program for addition of two integer numbers void main()
{

ii) Variable declaration
To declare variable we must have the awareness of variable name convention, data type and syntax for declaration etc. int a,b,c;
Or

2 Distinguish between pass by value and pass by reference with the help of an example.

Answer: Difference between pass by value and pass by reference.
Pass by Value Pass by Reference
Passes an argument by value. Passes an argument by reference.
Specifying the ByVal keyword. Specifying the ByRef keyword.
The procedure code does not have The procedure code gives a direct reference to the
any access to the

3 Explain different type of Arithmetic Operators in C.

Answer: The basic operators for performing arithmetic are the same in many computer languages:
+ addition
- subtraction
* multiplication
/ division
% modulus (remainder)

The - operator can be used in two ways: to subtract two numbers (as in a - b), or to negate one number (

Assignment Set -2
1 a) Write a program to print the largest of three numbers.
b) Write a program to find the factorial of a number.

Answer: a. Program to print the largest of three numbers
#include<stdio.h>
main()
{
int a,b,c,big;
printf ( Enter three numbers );
scanf ( %d %d %d , &a, &b, &c);
if (a>b) // check whether a is greater than b if true then
if(a>


2 Explain different functions in C to handle Error during I/O operations.

Answer: The standard I/O functions maintain two indicators with each open stream to show the end-of-file and error status of the stream. These can be interrogated and set by the following functions:
#include <

3 Define macro. How we can declare a macro statement? Explain with an example.

Answer: A preprocessor line of the form
#define name text
defines a macro with the given name, having as its value the given replacement text. After that (for the rest of the

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DRIVE Fall 2017
PROGRAM Bachelor of Computer Application - BCA
SEMESTER I
SUBJECT CODE & NAME BCA113 Basic Mathematics

Assignment Set -1

1 If tan A = 1- cos B . show that tan 2A = tan B.
sinB

Answer: Given that tan A = 1-cosB
SinB

i.e tan A = 1-{1-2sin^2 (B/2)}


2 a) If in group G, (ab)^2 = a^2b^2 for every a, b G prove that G is abelian.
b) Show that if every element of a group G is its own inverse then G is abelian.

Answer: a) (ab)^2 = a^2.b^2

(ab) (ab) = (a . a) (b . b)

A

3 Evaluate dy/dx, when y = log[ (1+x^2)+x]) / [ (1+x^2)-x])

Answer: d/dx{(log[ (1+x^2)+x]) - log[ (1+x^2)-x])

(Since log A/B = Log A log B)

=

Assignment Set -2

1 Integrate the following w.r.t. x
i) x (x + a)
ii) x / (a + bx)

Answer: a) x (x + a)

x (x+


2 Solve: 3/1 + (3.5/1.2) . (1/3) + (3.5.7/1.2.3) . (1/3^2) + .. ]

Answer: Comparing the given series with one of the general Binomial series, we get

P=3, q=2, x/q=1/3

x=2/

3 If a = cos + i sin , 0< 2 prove that {1+a}/{1-a} = i cot

Answer: i. If a = cos + i sin ,0 2 prove that 1+a/1-a = i cot

L.H.S = 1+ cos + i sin
1 - cos - i sin

cos^2 + 2 i sin cos
sin

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DRIVE Fall 2017
PROGRAM Bachelor of Science in Information Technology - B.SC(IT)
SEMESTER I
SUBJECT CODE & NAME Bca114 Digital logic

Assignment Set -1

1 Construct XOR and NAND Gate using NOR Gate.

Answer: a)

2 Convert the following hexadecimal numbers to base 10:
a. 145
b. A2C1

Answer: a. 14516 in Hexadecimal number system and we want to translate it into Decimal.

14516 = 1*16^2+4*16^1+5*16^0

= 256+64

3 Simplify f (a, b, c, d) = m(0, 2, 4, 6, 7, 8, 9, 11, 12, 14)

Answer: The given function is:
f(a.b.c.d)= m(0,2,4, 6,7,8,9,11,12,14)
This is a four variable function so the k map will be look like this:

Assignment Set -2

1 Explain the working of 4 bit Johnson counter with the help of neat diagram.

Answer: A Johnson counter is constructed using serial-in and serial-out (SISO) shift register. The output of the shift register is connected back to the input after passing it through an inverter. Depending on

Q2. Explain the working of MODEM
Answer:

As we know that the computers can t understand our language. Computers understand the language of 0 s and 1 s i.e. digital form. The modem will modulate the signal into a sine wave. So, this modulated digital signal can easily run over the telephone lines. Then the signal will reach the IP hub. After this the demodulation of the signal will take place into digital form. Then you will be connected to the

3 Write a short note on J-K Master Slave Flip-Flop.

Answer: J-K Master Slave Flip Flop
The logic symbol for the master-slave flip-flop only indicates the initial inputs to the master and the outputs from the slave as indicated by the J-K master slave flip-fl

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