Rajasthan Board 12th Computer Science Exam 2024 : Most Important Question Answers

राजस्थान बोर्ड 12वीं की कम्प्यूटर विज्ञान परीक्षा 2 मार्च, 2024 को निर्धारित है। तो यह आर्टिकल आपके लिए काफी ज्यादा महत्वपूर्ण साबित होने वाला है क्योंकि इस आर्टिकल में आपको बोर्ड परीक्षा के लिए वो ही प्रश्न दिए गए है जो बोर्ड पेपर में आने जा रहे है।

इस पोस्ट में राजस्थान बोर्ड 12th परीक्षा 2024 के लिए हिंदी के महत्वपूर्ण ऑब्जेक्टिव, सब्जेक्टिव (RBSE Board 12th Computer Science Important Objective & Subjective Question 2024) प्रश्न दिये गये है जो आपके पेपर के लिए बहुत महत्वपूर्ण है।

छात्रों को इन (RBSE Board 12th Computer Science Viral Question 2024) प्रश्नों को अच्छी तरह से याद रखना चाहिए, जिससे आपको तैयारी करने में आसानी होगी।

अब आपकी परीक्षा में कुछ ही घंटे बचे है I जिससे कम्प्यूटर विज्ञान के पेपर की तैयारी कर सकते हैं और अच्छे मार्क्स ला सकते है I

RBSE Board 12th Computer Science - Important Quesion

Multiple Choice Question

i. When an error occurs during the execution of a Program, an exception is said to have been ...........................

(a) Created
(b) Asserted
(c) Triggered
(d) Raised

ii. Readlines( ) method return ...................................

(a) String
(b) List
(c) Dictionary
(d) Tuple

iii. .............. adds a new elements at the TOP of the stack.

(a) POP
(b) PUSH
(c) INSERT
(d) (a) (and (b) both

iv. Commonly used storage devices.

(a) Hard disk
(b) SSD
(c) Pen drive
(d) all of the above

v. Which of the following properties belong to the database?

(A) A database is a representation of some aspect of the real world also called mini world.
(B) It is designed, built and populated with data for specific purpose.
(C) It can be of any size and complexity
(D) All of the above.

vi. In SQL, which command is used to change a table's storage characteristic?

(a) Alter Table
(b) Modify Table
(c) Change Table
(d) Hide Table

vii. A computer Network-

(A) It is a collection of hardware components and Computer?
(B) It is interconnected by communication channels.
(C) Allows sharing of resources and information
(D) All of the above

viii. Bandwidth is measured in -

(a) Byte per second
(b) Bit per second
(c) Hertz
(d) Amperes

ix. Identify the malware which does not replicate or clone through an infections

(A) Trojans
(B) Worms
(C) Rookits
(D) Virus

x. ..................... is a python object that represents an error

(A) Interpreter
(B) Compiler
(C) Exception
(D) Module

xi. Stack follows :-

(A) FIFO
(B) LIFO
(C) FILO
(D) LILO

xii. Which data structure can be used to implement both stack and queen

(A) Stack
(B) Array
(C) Quene
(D) Deque

xiii. When two elements map to the same slot in the hash table its is called.

(A) collision
(B) Sorting
(C) Searching
(D) Merging

xiv. The process of placing or rearranging a collection of elements into a particular order is known as

(A) Searching
(B) Sorting
(C) Rearranging
(D) Merging

xv. Commonly used storage devices,

(A) SSD
(B) Pen Drive
(C) HDD
(D) All of the above

xvi. Which of the following is the smallest network ?

(A) WAN
(B) MAN
(C) LAN
(D) None of the above

Fill in blanks

i. ...................... search checks the elements of a list, one at a time, without skipping any elements.

Ans: Linear

ii. The process of placing or rearranging a collection of elements into a particular order is known as ................................

Ans: Sorting

iii. Front and Rear are used to indicate begining and end of ...............

Ans: Queue

iv. ....................... is a python object that represents an error.

Ans: Exception

v. A ......... is a collection of programs that enables users to rate mantain and use a database.

Ans: Database Management System (DBMS)

vi. An attribute in a relation is foreign key if it is the .............. key in any other relation.

Ans: Primary

vii. The term FTP stands for ................. .

Ans: File Transfer Protocol

viii. ........... is a collection of many separate networks.

Ans: Internet

ix. VoLTE stands for ..........................................

Ans: Voice over LTE

x. ................ looks like a legitimate software which once installed acts like a virus.

Ans: Trojan

Answer the following questions.

1. How to catch ID Error Exception in Python?

Ans: In Python, you can catch IDError exceptions using the try-except block:

try:
    # Code that might raise an `IDError` (e.g., accessing an invalid index)
except IndexError as e:
    print("Error: Invalid identifier (ID).", e)

2. When we use open ( ) methods in Python?

Ans: The open() method in Python is used to open a file for various purposes like reading, writing, or appending data. Here are some common use cases:

Reading a file:

with open("data.txt", "r") as file:
    contents = file.read()  # Read the entire file content
    lines = file.readlines()  # Read line by line

Writing to a file:

with open("data.txt", "w") as file:
    file.write("This is new content.")  # Write to the file

Appending to a file:

with open("data.txt", "a") as file:
    file.write("\nMore content.")  # Append to the end of the file

3. Which Method is used to read a specified numbers of bytes(n) of data from a data file.

Ans: The read() method of a file object can be used to read a specific number of bytes:

with open("data.txt", "rb") as file:  # "rb" for reading binary data
    bytes_to_read = 1024
    data = file.read(bytes_to_read)  # Read the first 1024 bytes

4. Assume that height (in cm) of Students in a class are as follows [90, 120, 110, 115, 85, 90, 100, 110, 110]. Find Mean or average height of the Class.

Ans: Here's how to calculate the mean (average) of a list using the sum() and len() functions:

heights = [90, 120, 110, 115, 85, 90, 100, 110, 110]
mean_height = sum(heights) / len(heights)
print("Mean height:", mean_height)

5. What is Database schema?

Ans: A database schema is the blueprint of a database, defining the structure and relationships between tables, including:

• Tables: Represent entities or data categories.
• Columns: Define attributes or properties of each table.
• Data types: Specify the kind of data each column can hold (e.g., text, numbers, dates).
• Constraints: Enforce data integrity and relationships between tables (e.g., primary keys, foreign keys).

6. When we use Update statement in SQL?

Ans: The UPDATE statement in SQL is used to modify existing data in a database table:

UPDATE table_name
SET column1 = new_value, column2 = new_value2
WHERE condition;

7. Write any five components of computer network.

Ans: 

1. Network devices: Routers, switches, hubs, firewalls, etc.
2. Transmission media: Cables (fiber optic, copper), wireless signals.
3. Network protocols: Rules for communication (TCP/IP, UDP, HTTP).
4. Software: Operating systems, network applications (web browsers, email clients).
5. End devices: Computers, smartphones, printers, servers.

8. What is transmission Media?

Ans: Transmission media are the physical channels through which data travels in a network, such as:

• Wired:
  • Coaxial cables
  • Twisted-pair cables
  • Fiber optic cables
• Wireless:
  • Radio waves
  • Microwaves
  • Satellites

9. Define the term Catching an exception.

Ans: Catching an exception refers to handling errors gracefully using a try-except block in programming. When an error occurs within the try block, the corresponding except block is executed to provide an appropriate response.

10. What are the basic operations that can be performed on the stack?

Ans: 

• Push: Adds an element to the top of the stack.
• Pop: Removes and returns the element from the top of the stack.
• Peek: Returns the element at the top of the stack without removing it.
• IsEmpty: Checks if the stack is empty.
• IsFull: Checks if the stack is full (applicable only for limited-size stacks).

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