CUET 2026 Computer Science May 31 Shift 1 Question Paper- Download Answer Key and Solution PDF

Concept:

Packet switching is a communication method in which data is divided into small packets before transmission. Each packet may travel through different routes and is reassembled at the destination.

Step 1: Understand Internet communication

The Internet does not establish a dedicated communication path between sender and receiver. Instead, data is broken into packets.

Step 2: Identify the switching technique

Since data travels in the form of packets through various network routes, the Internet uses packet switching.

Final Answer:
\[ \boxed{Packet Switching} \] Quick Tip: The Internet is the most common example of a packet-switched network.

Concept:

Communication modes describe the direction of data flow between devices.


Simplex: One-way communication only.
Half Duplex: Both directions, but one at a time.
Full Duplex: Both directions simultaneously.


Step 1: Analyze telephone communication

During a telephone call, both persons can speak and listen at the same time.

Step 2: Identify the communication mode

Since communication occurs simultaneously in both directions, it is a full duplex system.

Final Answer:
\[ \boxed{Full Duplex} \] Quick Tip: Mobile phones and landline telephones are examples of full duplex communication.

Concept:

Linear search checks each element one by one until the desired item is found.

Step 1: Understand linear search

In linear search, elements are examined sequentially from the beginning to the end of the list.

Step 2: Determine where it is useful

Linear search does not require the data to be sorted. Therefore, it is most useful for unsorted lists.

Final Answer:
\[ \boxed{Unsorted List} \] Quick Tip: Linear search can work on both sorted and unsorted data, but it is especially useful when data is unsorted.

Concept:

Time complexity measures the number of operations required by an algorithm as the size of input increases.

Step 1: Recall complexities
\[ Linear Search = O(n) \]
\[ Binary Search = O(\log n) \]

Step 2: Identify logarithmic search

Binary search repeatedly divides the search space into two halves, reducing the number of comparisons significantly.

Final Answer:
\[ \boxed{Binary Search} \] Quick Tip: Binary Search requires the data to be sorted before searching.

Concept:

Python is a high-level, interpreted, and general-purpose programming language.

Step 1: Recall the creator of Python

Python was developed by Guido van Rossum in the late 1980s and was officially released in 1991.

Step 2: Compare with other options


Dennis Ritchie developed C.
James Gosling developed Java.
Bjarne Stroustrup developed C++.


Therefore, Python was developed by Guido van Rossum.

Final Answer:
\[ \boxed{Guido van Rossum} \] Quick Tip: Python was named after the comedy series "Monty Python's Flying Circus," not after the snake.

Concept:

A function is a reusable block of code that performs a specific task. In Python, functions are created using the def keyword.

Step 1: Recall the syntax for function definition

General syntax:

def function_name():

Example:

def add(a, b):
    return a + b

Step 2: Identify the correct keyword

Python uses the keyword def to define a function.

Concept:

Logical operators are used to combine conditional expressions.

Step 1: Recall Python logical operators

Python provides:
\[ \texttt{and,\ or,\ not} \]

Step 2: Identify the AND operator

The logical AND operator returns True only when both conditions are True.

Example:

x = 10
y = 20

x > 5 and y > 15

Concept:

Binary Search repeatedly divides a sorted list into two halves and checks the middle element.

Step 1: Understand Binary Search

To locate an element efficiently, Binary Search first finds the middle position of the current search range.

Step 2: Apply middle index formula

The middle index is calculated as:
\[ mid=\frac{low+high}{2} \]

where:
\[ low = starting index \]
\[ high = ending index \]

Final Answer:
\[ \boxed{\frac{low+high}{2}} \] Quick Tip: Modern implementations often use \(low+\frac{high-low}{2}\) to avoid overflow.

Concept:

Communication is the process of exchanging information between individuals or devices.

Step 1: Recall the elements of communication

The basic elements are:


Sender
Message
Medium/Channel
Receiver
Feedback


Step 2: Examine the options

Sender, Receiver and Message are communication elements.

A Compiler is a software program that translates source code into machine code and is unrelated to the communication process.

Final Answer:
\[ \boxed{Compiler} \] Quick Tip: Compiler is a programming concept, whereas sender, receiver and message belong to communication systems.

Concept:

Linear Search examines each element one by one until the desired element is found.

Step 1: Consider unsorted data

Linear Search does not require the elements to be arranged in any particular order.

Step 2: Consider small datasets

For a small number of records, Linear Search is simple to implement and performs efficiently.

Step 3: Choose the most appropriate option

Since Linear Search is suitable for both unsorted data and small datasets, the correct answer is:
\[ \boxed{Both A and B} \]

Final Answer:
\[ \boxed{Both A and B} \] Quick Tip: Linear Search is simple but becomes inefficient for very large datasets because its time complexity is \(O(n)\).