PSEB CLASS 12 COMPUTER SCIENCE SHORT ANSWER TYPE QUESTIONS

12th Computer Science: Complete Short Question Bank

Chapter 1: Office Automation and Typing

Q1: Write the shortcut keys to move text in Word.

To move text, use Ctrl+X (Cut) and then Ctrl+V (Paste).

Q2: Name the four types of text alignments in Word.

1. Left
2. Center
3. Right
4. Justify

Q3: Which Excel function combines contents of different cells?

The Concatenate() function is used to join text from multiple cells into one.

Q4: Name Punjabi fonts used for typing.

AnmolLipi, Raavi, Joy, and Asees.

Chapter 2: Control Statements

Q1: What is "Nested if" statement?

Writing an 'if' statement inside another 'if' statement is called a Nested if statement.

Q2: Which statements alter the normal flow of a program?

Control Statements (Branching, Looping, and Jumping).

Q3: Which statement is used to skip statements inside a loop?

The continue statement (a type of Jumping Statement).

Q4: Name the Post-Test loop in C.

The do while loop.

Chapter 3: Computer Networks

Q1: What is a Bridge in networking?

A Bridge is a 2-port network device used to connect two similar network segments and filter traffic based on MAC addresses.

Q2: Name the different types of OSI layers.

Physical, Data Link, Network, Transport, Session, Presentation, and Application layers.

Chapter 4: Current Trends in IT

Q1: What is Bluetooth technology?

A short-range wireless technology used for exchanging data between fixed and mobile devices over short distances.

Q2: Define GPS Technology.

Global Positioning System (GPS) is a satellite-based navigation system used to find the exact location, velocity, and time synchronization.

Q3: Define 5G Technology.

The 5th generation mobile network designed to connect virtually everyone and everything together including machines, objects, and devices at ultra-high speeds.

Chapter 5: AI and Expert System

Q1: Who is the father of AI?

John McCarthy.

Q2: What are the limitations of Expert Systems?

They lack common sense, cannot handle inconsistent knowledge, and are expensive to maintain compared to human experts for simple tasks.

Chapter 6: Digitalization

Q1: What is E-Commerce?

Electronic Commerce is the buying and selling of goods or services using the internet.

Q2: Name types of E-Commerce.

B2B (Business to Business), B2C (Business to Customer), C2C (Customer to Customer), and C2B (Customer to Business).

Chapter 7: E-Governance

Q1: What are Sewa/Suvidha Kendras?

These are service centers established at the village or town level to provide various government-to-citizen (G2C) services under one roof.

Q2: Mention four uses of an Aadhaar card.

1. Identity Proof
2. Opening Bank Accounts
3. Getting LPG Subsidy
4. Applying for Passports

Chapter 8: Image Editing

Q1: What are Masks in GIMP?

Masks are used to protect or hide parts of a layer, allowing you to modify transparency without permanently deleting pixels.

Q2: How to create a duplicate image in GIMP?

Go to the 'Image' menu and select 'Duplicate' or use the shortcut Ctrl+D.

Chapter 9: Audio and Video Editing

Q1: What are Codecs?

A Codec is a program or device that compresses data for transmission and decompresses it for playback.

Q2: What is Video Splitting?

The process of dividing a single video clip into multiple smaller parts or sections.