The marks obtained by 20 students in an entrance examination out of 100 are given below:
60, 50, 75, 25, 80, 35, 85, 60, 65, 95, 31, 91, 71, 68, 25, 30, 62, 73, 77, 64
Using a spreadsheet package, perform the following tasks:
a) Enter the data in a spreadsheet.
b) Create a frequency distribution using class intervals: 0–10, 11–20, 21–30, …, 91–100.
c) Draw a histogram for the data.
d) Calculate the mean and standard deviation using spreadsheet formulas.
e) Find the minimum and maximum marks.

Fill in the blanks with a/an, the or no article Ǿ.
______ software engineer must possess ______ analytical mind and ______ ability to solve
problems efficiently.
During ______ interview, candidates should answer ______ questions confidently and maintain
______ positive attitude.
______ interviewer usually appreciates ______ honest responses and ______ clear
communication skills.
______ confidence combined with preparation often leads to ______ successful career.

Rewrite these sentences beginning with the words given below. 
a. Someone has completed the software installation.
The software installation ___________________________
b. They will announce the examination results tomorrow.
The examination results ___________________________
c. People believe that cloud computing will transform education.
It is believed that _________________________________
d. We advised the participants to submit their reports online.
The participants __________________________________
e. The faculty conducted an orientation programme.
An orientation programme ________________________

Explain the role of structures and nested structures in C programming. Define appropriate structures for a
Library Management System containing:
 Book ID
 Title
 Author
 Publisher
 Number of Copies
Write functions to:
 Input book details.
 Display all records.
 Search a book using Book ID.
 Display books written by a specified author. 

Explain the concept of dynamic memory allocation in C. Write a C program that dynamically allocates
memory to store the details of N products (Product ID, Product Name, Quantity, Price).
The program should:
 Accept product details.
 Display all products.
 Find the costliest product.
 Calculate the total inventory value.
 Release the allocated memory before termination.
Discuss the advantages of dynamic memory allocation in this context.

Without using any built-in string handling functions, write a menu-driven C program to perform the
following operations on a given string:
1. Reverse the string.
2. Count the number of words.
3. Convert the string to uppercase.
4. Check whether the string is an anagram of another string.
5. Display the frequency of vowels and consonants.
Use the switch-case construct for implementing the menu.

Write a C program to perform operations on a square matrix of order N.
The program should:
 Find the sum of each row and each column.
 Compute the sum of the principal and secondary diagonals.
 Check whether the matrix is symmetric.
 Display the transpose of the matrix.

Identify the part of the sentence which is grammatically incorrect:

Write a C program that accepts n integer values from the user and performs the following operations
using one-dimensional arrays:
 Find the second largest and second smallest elements.
 Count the number of even and odd numbers.
 Display all duplicate elements, if any.
 Compute the average of all elements.

Find words from the passage that mean the same as the following: 

Explain the concepts of recursion and iteration in C with suitable examples. Write two separate C
programs to calculate the Greatest Common Divisor (GCD) of two positive integers:
 using an iterative approach and
 using a recursive approach
Compare both approaches

Which quality mentioned in the passage do you consider most important for professional success? Give reasons. 

Why is time management essential for remote teams? 

Perform the following conversion of numbers: 
i) Decimal (3456345123)10 to binary and hexadecimal
ii) Hexadecimal (CABFF114)h into Octal.

 Draw three more diagrams, each showing the state of the machine after execution of every instruction viz. LOAD, ADD and STOR. Show the changes in the values of Registers and memory locations, if any, due to the execution of the instruction. Show all the addresses and values in hexadecimal notations. 

What challenges are associated with digital collaboration? 

Draw a diagram showing the Initial State of the machine with the addresses and content of memory locations in hexadecimal. Show only those address locations of the memory that store the instruction and data. Also, show the content of all the stated registers. 

How does effective communication improve teamwork? 

 Stores the content of the Accumulator register to memory location C. However, this machine is different from the example of Figure 4 in the following ways:
 Each memory word of this new machine is of 32 bits in length.
 Each instruction is of length 32 bits with 8 bits for operation code (opcode) and 24 bits for specifying one direct operand. The size of operand is 32 bits.
 The Main Memory of the machine is of size 224 words.
 The three consecutive instructions are placed starting from memory location (C450AF)h ; operand A is at location (F01000)h and contains a value (11AB234F)h, Operand B is at location (F01001)h and contains a value (11122350)h and operand C is at location (F01001)h and contains a value (00000000)h.
 The AC, IR, MAR and MBR registers are of size 32 bits, whereas PC register is of size 24 bits.
The initial content of the PC register is (C450AF)h.

Why has digital collaboration become important in modern organizations?