## CBSE Sample Paper for Class 11 Computer Science (Solved) – Set A

CBSE Sample Paper for Class 11 Computer Science and its solutions are strictly based on the CBSE Board latest syllabus and guidelines. Set A of Solved CBSE Sample Paper for Class 11 Computer Science is given below with its solutions.

## Sample Question Paper

1. Answer the following questions:

(a) Give the full form of PROM. (1 mark)
(b) Who introduced the concept of Transistors? (1 mark)
(c) Expand RDBMS. (1 mark)
(d) List the differences between Low Level Language and High Level Language. (2 marks)
(e) Write short note on any four operating systems. (4 marks)

2. Answer the following Questions:

(a) Write short note on Level 1 Cache. (2 marks)
(b) What is MIMD? (2 marks)
(c) What is the use of math.cos(x)? Give Example. (2 marks)
(d) Convert the following:

(i) (1101101)2 to decimal
(ii) (4567)8 to Binary
(iii) (B678A)16 to Decimal
(iv) (125)10 to Binary (4 marks)

3. Answer the following questions:

(a) Write short note on Static Binding. (2 marks)
(b) List two logical operators in python with an example (2 marks)
(c) Reduce the following Boolean Expression to three literals:
ABC+ A’BC+A’BC’+A’B’C’ (3 marks)
(d) Write four functions performed by compression tools. (4 marks)

4. Answer the following questions:

(a) What is List? How do you create a list in Python? (2 marks)
(b) What is the difference between input() and raw_input()? Explain with example. (2 marks)
(c) List some common datatypes used in Python. (3 marks)
(d) List with example some math functions in Python. (3 marks)

5. Answer the following questions:

(a) Which loops are supported by pyhton? (1 mark)
(b) Write the output of following program: (2 marks)
a=10
b=20
b=b+a
print “a = “,a,”b = “,b
(c) How can you define a function in Python? Give Proper Syntax. (2 marks)
(d) Write a program in Python to input a decimal integer and print its reverse binary equivalent. (3 marks)
(e) Write short note on symbols used in a flow chart (4 marks)

6. Answer the following questions:

(a) Differentiate between isdigit( ) and isalpha( ). (1 mark)
(b) What is a keyword? List some keywords in Python. (2 marks)
(c) What is the meaning of slicing a list in python? Explain by a small code. (3 marks)
(d) Write and explain four features of RISC. (4 marks)

7. Answer the following questions:

(a) Define system software. (1 mark)
(b) Draw a labeled diagram of basic computer system. (2 marks)
(c) Write a python program to find factorial of a number. (2 marks)
(d) Idenify Errors in the following lines of code(Underline each correction) (3 marks)
def sin(x,n) #line 1
sine = 0
for (i in range[n]) #line 2
sign = (-1)*i**i #line 3
sine = sine + ((x**(2.0*i-1))/factoria1(2**i-1))*sign
return sine