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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 Î 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
Ø (ab) (ab) = (a . a) (b . b)
Ø 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 q
+ i sin q, 0<q <2p
prove that {1+a}/{1-a} = i cot q/2
Answer: i. If a = cos q
+ i sin q,0 <q <
2p prove that 1+a/1-a = i cot q/2
L.H.S
= 1+ cos q + i sin q
1 - cos q
- i sin q
= 2 cos^2 q/2
+ 2 i sin q/2 cos q/2
2
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) = Σm(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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