11th Computer Science Public Question Paper PDF 2025

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11th Computer Science Public Question Paper PDF Download for Students

11th Computer Science Public Question Paper PDF Free Download

TTL stands for

(A) Time-To-Login

(B) Time-To-Live

(D) None of these

Option b – Time-To-Live

Which protocol is used to report error messages ( 11th Computer Science mcq )

(A) TCP

(B) IP

(D) SMTP

Option c – ICMP

Which is the error message reported by ICMP

(A) Time exceeded

(B) Host unreachable

(D) All of these

Option d – All of these

What is the use of IP source routing ( 11th Computer Science mcq )

(A) Mapping the Network drive

(B) Troubleshooting

(D) All of the above

Option d – All of the above

Which is the IP source routing method

(A) SSR

(B) LSR

(D) Both A & B

Option d – Both A & B

What is the type of port ( 11th Computer Science mcq )

(A) Serial

(B) Parallel

(D) All of these

Option d – All of these

Parallel ports can transfer …….. bits of data at a time-

(A) 2

(B) 4

(D) 16

Option c – 8

Parallel Port can not connect ( 11th Computer Science mcq )

(A) Printers

(B) Scanners

(D) Monitors

Option d – Monitors

In Computer which range is in registered ports

(A) 0 to 1023

(B) 1024 to 49151

(D) None of these

Option b – 1024 to 49151

USB stands for

(A) United Serial Bus

(B) Universal Serial By-Pass

(D) Universal Serial Bus

Option d – Universal Serial Bus

Which is the fastest port for data transfer ( 11th Computer Science mcq )

(A) USB

(B) Serial

(D) FireWire

Option d – FireWire

The default port for HTTP

(A) 13

(B) 80

(D) 25

Option b – 80

Which is not part of the UDP datagram ( 11th Computer Science mcq )

(A) Source Port

(B) Destination Port

(D) None of these

Option d – None of these

Which is the type of socket-

(A) Datagram

(B) Stream

(d) All of these

Option d – All of these

In which layer of OSI model IP is available ( 11th Computer Science mcq )

(A) Layer 1

(B) Layer 2

(D) Layer 4

Option c – Layer 3

IP is defined in

(A) RFC 790

(B) RFC 791

(D) RFC 793

Option b – RFC 791

How do you change column width to fit the contents? ( 11th Computer Science mcq )

a) Single-click the boundary to the left of the column heading

b) Double-click the boundary to the right of the column heading

c) Press Alt & single-click anywhere in the column

d) All of the above

Option b – Double-click the boundary to the right of the column heading

When you work with large worksheets, you may need to

a) Size the worksheet to fit the specific number of pages

b) Add & remove page breaks

c) Specify only certain print areas

d) All of the above

Option d – All of the above

Hyperlinks cannot be

a) Special shapes like stars & banners

b) Drawing objects like rectangles and ovals

c) Pictures

d) All can be hyperlinks

Option d – All can be hyperlinks

You can use the horizontal and vertical scroll bars to ( 11th Computer Science mcq )

a) Split a worksheet into two panes

b) View different rows and columns

c) Edit the contents of a cell

d) View different worksheets

Option b – View different rows and columns

What do we call a computer program that organizes data in rows & columns of cells? You might use this type of program to keep a record of the Money you earned mowing lawns over the summer.

a) Spreadsheet program

b) Database program

c) Word processor program

d) Desktop publisher program

Option a – Spreadsheet program

You can add an image to a template by clicking the Insert Picture From File button on the …. Toolbar. ( 11th Computer Science mcq )

a) Standard

b) Formatting

c) Drawing

d) Picture

Option d – Picture

What function displays row data in a column or column data in a row?

a) Hyperlink

b) Index

c) Transpose

d) Rows

Option c – Transpose

The Name box ( 11th Computer Science MCQ )

a) Shows the location of the previously active cell

b) Appears to the left of the formula bar

c) Appears below the status bar

d) Appears below the menu bar

Option b – Appears to the left of the formula bar

Which type of the following malware does not replicate or clone themselves through infection?

A. Rootkits

B. Trojans

C. Worms

D. Viruses

Option b – Trojans

Which of the following malware types allows the attacker to access the administrative controls and enables him or her to do almost anything he wants to do with the infected computers?

A. RATS

B. Worms

C. Rootkits

D. Botnets

Option a – RATS

Which of the following statements is true about Trojans? ( 11th Computer Science MCQ )

A. Trojans perform tasks for which they are designed or programmed

B. Trojans replicate themselves or clone themselves through infections

C. Trojans do nothing harmful to the user’s computer systems

D. None of the above

Option a – Trojans perform tasks for which they are designed or programmed

Which of the following is just the opposite of the Open Design principle?

A. Security through obscurity

B. Least common mechanism

C. Least privileges

D. work factor

Option a – Security through obscurity

Which of the following is a type of independent malicious program that never requires any host program? ( 11th Computer Science MCQ )

A. Trojan horse

B. Worm

C. Trap door

D. Virus

Option b – Worm

The term “CHAP” stands for ………..

A. Circuit Hardware Authentication Protocols

B. Challenge Hardware Authentication Protocols

C. Challenge Handshake Authentication Protocols

D. Circuit Handshake Authentication Protocols

Option c – Challenge Handshake Authentication Protocols

A …….. is an electronic device that processes data, converting it into information. ( 11th Computer Science MCQ )

A. stylus

B. None of these

C. case

D. computer

Option d – computer

Something that has easily understood instructions is said to be

A. icon

B. word processing

C. user friendly

D. information

Option c – user friendly

Disk Operating System (DOS) was designed to work with which of the following input devices? ( 11th Computer Science MCQ )

A. Mouse

B. Xbox

C. Printer

D. Keyboard

Option d – Keyboard

Which of the following is not a storage device?

A. CD

B. Floppy disk

C. Hard Disk

D. Printer

Option d – Printer

A SIMM has how many pins? ( 11th Computer Science MCQ )

A. 40

B. 20

C. 34

D. 36

Option a – 40

URL is a reference to a resource on the internet, URL stands for

A. Universal Resource List

B. Uniform Resource Locator

C. Uniform Resource Locator

D. Uniform Resource List

Option b – Uniform Resource Locator

A …….. uses laser Technology to store large amounts of information. ( 11th Computer Science MCQ )

A. None of these

B. Floppy Disk

C. Hard disk

D. Compact Disc Read-only memory (CD-ROM)

Option d – Compact Disc Read-only memory (CD-ROM)

When sending an e-mail, the …….. line describes the contents of the message.

A. contents

B. subject

C. None of these

D. CC

Option b – subject

A device that connects to a Network without the use of cables is said to be ( 11th Computer Science MCQ )

A. None of these

B. open source

C. centralized

D. Wireless

Option d – Wireless

Which of the following peripheral devices displays information to a user?

A. Monitor

B. Secondary storage media

C. None of these

D. Secondary storage devices

Option a – Monitor

A ……… contains specific rules & words that express the logical steps of an algorithm. ( 11th Computer Science MCQ )

A. None of these

B. programming structure

C. programming language

D. syntax

Option c – programming language

What does RAM stand for?

A. Read Accessed & Maintain

B. Random Active Memory

C. Read Active Memory

D. Random Access Memory

Option d – Random Access Memory

VoIP stands for ( 11th Computer Science MCQ )

A. Version over IP

B. Voice on IP

C. Vote over IP

D. Voice over IP

Option d – Voice over IP

Which supercomputer is developed by Indian scientists?

A. Param

B. Super 301

C. Compaq Presario

D. CRAY YMP

Option a – Param

One Gigabyte is approximately equal to: ( 11th Computer Science MCQ )

A. 1,000,000 bytes

B. 1,000,000,000 bytes

C. 1,000,000,000,000 bytes

D. None of these

Option b – 1,000,000,000 bytes

Check the odd term out:

A. Linux

B. Windows

C. Internet

D. Unix

Option c – Internet

The errors that can be pointed out by the compiler are:

A. Syntax error

B. Symantic error

C. Logical error

D. Internal error

Option a – Syntax error

What is the control unit’s function in the CPU?

A. To transfer data to primary storage

B. To store program instructions

C. To perform logic functions

D. To decode program instructions

Option c – To perform logic functions

What do you use to create a chart?

A. Pie Wizard

B. Excel Wizard

C. Data Wizard

D. Chart Wizard

Option d – Chart Wizard

C is?

A. A machine language

B. A third generation high-level language

C. An assembly language

D. All of the above

Option b – A third generation high-level language

A device that converts digital signals to analog signals is:

A. A modem

B. A packet

C. A block

D. Both A and B

Option a – A modem

Which of the following is the most powerful type of computer?

A. Supermicro

B. Super computer

C. Super conductor

D. Megaframe

Option b – Super computer

The ……….. is the administrative section of the computer system?

A. Central Processing Unit

B. Control Unit

C. Input Unit

D. Memory Unit

Option a – Central Processing Unit

Find the odd man out:

A. FTP

B. TCP

C. POP

D. SAP

Option c – POP

Which of the following is NOT an operating system?

A. Window NT

B. Java

C. Dos

D. Unix

Option b – Java

One kilobyte is equal to:

A. 1000 bytes

B. 1024 bytes

C. 100 bytes

D. 1023 bytes

Option b – 1024 bytes

Which of the following is not an example of an operating system?

A. Windows 98

B. BSD Unix

C. Microsoft Office XP

D. Red Hat Linux

Option c – Microsoft Office XP

IC chips used in computers are usually made of:

A. Lead

B. Silicon

C. Chromium

D. Gold

Option b – Silicon

The default port for SMTP is

(A) 22

(B) 23

(D) 25

Option d – 25

SNMP used for

(A) Sending Message

(B) Network management

(d) Sending files

Option b – Network management

Which agency assigns IPS

(A) IEEE

(B) ANSI

(D) BSNL

Option c – ICANN

Which is the component of the IP

(A) Client Identifier

(B) Server Identifier

(d) Both B & C

Option d – Both B & C

Which IP address is reserved for loopback or local host-

(A) 192.168.0.0

(B) 127.0.0.0

(D) None of these

Option c – 127.0.0.1

Which class of IP is used in smaller organizations-

(A) Class A

(B) Class B

(D) Class D

Option c – Class C

The size of the IPv4 is

(A) 16 Bits

(B) 32 Bits

(D) 128 Bits

Option b – 32 Bits

Which is the part of IP

(A) Netid

(B) Subnetid

(D) All of these

Option d – All of these

In a TCP header source & destination header contain-

(A) 8 Bits

(B) 16 Bits

(D) 128 Bits

Option c – 32 Bits

Which is the false statement-

(A) TCP enable dataflow for monitoring

(B) It avoids Network saturation

(D) In the TCP/IP model Internet layer is closest to the user.

Option d – In the TCP/IP model Internet layer is closest to the user

Which is not the application level protocol-

(A) FTP

(B) S/MIME

(d) HTTP

Option a – FTP

RDP server runs on

(A) Computers

(B) Switches

(D) Servers

Option c – Routers

RDP client runs on

(A) Clients

(B) Routers

(D) Servers

Option c – Hosts

Which is the false statement

(A) Telnet is used for remote login

(B) FTP can transfer files between two hosts

(D) TFTP rely on TCP

Option d – TFTP rely on TCP

In any organization, company, or firm, the policies of information security come under ………

A. CIA Triad

B. Confidentiality

C. Authenticity

D. None of the above

Option a – CIA Triad

Why are factors like Confidentiality, Integrity, Availability & Authenticity considered as the fundamentals?

A. They help in understanding the hacking process

B. These are the main elements of any security breach

C. They help to understand security and its components in a better manner

D. All of the above

Option c – They help to understand security and its components in a better manner

In order to ensure the security of the data/information, we need to …….. the data

A. Encrypt

B. Decrypt

C. Delete the data

D. None of the above

Option a – Encrypt

Which of the following is usually considered as the default port number of Apache & several other web servers?

A. 40

B. 80

C. 87

D. None of the above

Option b – 80

DNS translates a Domain name into

A. Hex

B. Binary

C. IP

D. URL

Option c – IP

Which one of the following systems cannot be considered as an example of an operating system?

A. Windows 8

B. Red Hat Linux

C. BSD Linux

D. Microsoft Office

Option d – Microsoft Office

In the CIA Triad, which one of the following is not involved?

A. Availability

B. Confidentiality

C. Authenticity

D. Integrity

Option c – Authenticity

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