Questions · Page 1 of 3

MCQ . (1 Marks)

🎯

Test yourself on this topic

50 questions · timed · auto-graded

MCQ 11 Mark
What is the collective name of both cryptography and cryptanalysis?
  • Cryptography
  • B
    Cryptanalysis
  • C
    Cryptology
  • D
    All of these
Answer
Correct option: A.
Cryptography
Cryptography
View full question & answer
MCQ 21 Mark
Cryptanalysis is also called
  • code breaking
  • B
    logic breaking
  • C
    design brealdng
  • D
    system breaking
Answer
Correct option: A.
code breaking
code breaking
View full question & answer
MCQ 31 Mark
Which of the followings is known as the process of converting a cipher-text into original plain text?
  • A
    Enciphering
  • B
    Ciphering
  • C
    Encryption
  • Decryption
Answer
Correct option: D.
Decryption
Decryption
View full question & answer
MCQ 41 Mark
Which of the following is an application of various techniques and principles to transform simple message into uninteffigible secret message and to retransform the message back to its original form?
  • Cryptography
  • B
    Cryptanalysis
  • C
    Cryptology
  • D
    All of these
Answer
Correct option: A.
Cryptography
Cryptography
View full question & answer
MCQ 51 Mark
Which of the following is used to transform the original message into unintelligible message by some logic?
  • A
    kaison
  • B
    cipher
  • logic bomb
  • D
    atom bomb
Answer
Correct option: C.
logic bomb
logic bomb
View full question & answer
MCQ 61 Mark
Which of the following is a parasite program that comes along with software that does some harm to the system?
  • A
    Attack
  • Virus
  • C
    Vulnerabilities
  • D
    All of these
Answer
Correct option: B.
Virus
Virus
View full question & answer
MCQ 71 Mark
Which of the followings is needed to send an e-mail besides computers and basic Internet facilities?
  • E-mail id or e-mail addresses
  • B
    Permanent address
  • C
    Postal addresses
  • D
    All of these
Answer
Correct option: A.
E-mail id or e-mail addresses
E-mail id or e-mail addresses
View full question & answer
MCQ 81 Mark
What is an alternative name of Junk mails?
  • A
    Less important mails
  • B
    Very important fast mails
  • Unwanted mails
  • D
    All of these
Answer
Correct option: C.
Unwanted mails
Unwanted mails
View full question & answer
MCQ 91 Mark
What type of information can be send through an E-mail?
  • A
    Text and voice
  • B
    Text and numbers
  • C
    Multimedia
  • All of these
Answer
Correct option: D.
All of these
All of these
View full question & answer
MCQ 101 Mark
When objects are sent via network, they have to be ………. in order to save memory and bandwidth.
  • Compressed
  • B
    Packed
  • C
    Condensed
  • D
    Stacked
Answer
Correct option: A.
Compressed
Compressed
View full question & answer
MCQ 111 Mark
Encryption of the text “My school name is New School” is ……….
  • Oa uejqqn Pcog ku Pgy Uejqqn
  • B
    Oa uejqqn Pcog ku Pgy Uejqnn
  • C
    Oa uejqqn Pcog ku Pgy Uejqqm
  • D
    Oa uejqqn Pcog ku Pgy Uejqmm
Answer
Correct option: A.
Oa uejqqn Pcog ku Pgy Uejqqn
Oa uejqqn Pcog ku Pgy Uejqqn
View full question & answer
MCQ 121 Mark
Both cryptography and cryptanalysis together is known as ……….
  • A
    Cryptanalysis
  • B
    Code Breaking
  • Cryptology
  • D
    Both $(A)$ and $(C)$
Answer
Correct option: C.
Cryptology
Cryptology
View full question & answer
MCQ 131 Mark
………. is the study of principles and methods of transforming an encrypted message back into meaningful information without the knowledge of the key.
  • A
    Cryptanalysis
  • B
    Code Breaking
  • C
    Cryptology
  • Both $(A)$ and $(C)$
Answer
Correct option: D.
Both $(A)$ and $(C)$
Both $(A)$ and $(C)$
View full question & answer
MCQ 141 Mark
Encrypted text can be retrieved but cannot be decoded in the absence of ……….
  • A
    Code
  • B
    Password
  • Key
  • D
    Cipher
Answer
Correct option: C.
Key
Key
View full question & answer
MCQ 151 Mark
The above mentioned critical information is also known as ………. key.
  • A
    Public or private
  • B
    Asymmetric / symmetric
  • Both $(A)$ and $(B)$
  • D
    None of these
Answer
Correct option: C.
Both $(A)$ and $(B)$
Both $(A)$ and $(B)$
View full question & answer
MCQ 161 Mark
The critical information used for encoding or decoding of messages is called as ……….
  • A
    Code
  • B
    Password
  • Key
  • D
    Cipher
Answer
Correct option: C.
Key
Key
View full question & answer
MCQ 171 Mark
The process of converting cipher-text into plain text is known as ……….
  • A
    Decryption
  • B
    Deciphering
  • C
    Decoding
  • All of these
Answer
Correct option: D.
All of these
All of these
View full question & answer
MCQ 181 Mark
The process of converting plain text to cipher-text is known as ……….
  • A
    Encryption
  • B
    Encoding
  • C
    Enciphering
  • All of these
Answer
Correct option: D.
All of these
All of these
View full question & answer
MCQ 191 Mark
In Cryptography Terminology, an algorithm for transforming the original message into unintelligible message is known as ……….
  • A
    Plain Text
  • B
    Cipher Text
  • C
    Algorithm
  • Cipher
Answer
Correct option: D.
Cipher
Cipher
View full question & answer
MCQ 201 Mark
In Cryptography Terminology the transformed secret message is called ……….
  • A
    Plain Text
  • Cipher Text
  • C
    Algorithm
  • D
    Cipher
Answer
Correct option: B.
Cipher Text
Cipher Text
View full question & answer
MCQ 211 Mark
In Cryptography Terminology, the original message is called ………
  • Plain Text
  • B
    Cipher Text
  • C
    Algorithm
  • D
    Cipher
Answer
Correct option: A.
Plain Text
Plain Text
View full question & answer
MCQ 221 Mark
Cryptography can be used as a tool to ……….
  • A
    Provide privacy
  • B
    To authenticate the identities
  • C
    To ensure message integrity
  • All of these
Answer
Correct option: D.
All of these
All of these
View full question & answer
MCQ 231 Mark
………. is an application of various techniques and principles to transform simple message into unintelligible secret message.
  • A
    Crypto
  • Cryptography
  • C
    Cipher-text
  • D
    Encipher
Answer
Correct option: B.
Cryptography
Cryptography
View full question & answer
MCQ 241 Mark
………. is a method of secret writing.
  • Cryptography
  • B
    Crypto
  • C
    Encipher
  • D
    Cipher-text
Answer
Correct option: A.
Cryptography
Cryptography
View full question & answer
MCQ 251 Mark
Many times spam emails are used as carriers of ………. attacks.
  • Denial
  • B
    Sniffing
  • C
    Spoofing
  • D
    Redirecting
Answer
Correct option: A.
Denial
Denial
View full question & answer
MCQ 261 Mark
The ……… attacks are used to shut down or make the system inoperable.
  • Denial
  • B
    Sniffing
  • C
    Spoofing
  • D
    Redirecting
Answer
Correct option: A.
Denial
Denial
View full question & answer
MCQ 271 Mark
……… is renaming the infrastructure such as server.
  • A
    Denial
  • B
    Sniffing
  • Spoofing
  • D
    Redirecting
Answer
Correct option: C.
Spoofing
Spoofing
View full question & answer
MCQ 281 Mark
……… can be defined as listening to various ports and network resources.
  • A
    Smelling
  • Sniffing
  • C
    Spoofing
  • D
    Redirecting
Answer
Correct option: B.
Sniffing
Sniffing
View full question & answer
MCQ 291 Mark
Unauthorized access to any system can be made possible through computers unique ………. address scanning.
  • A
    $ISP$
  • B
    $HTTP$
  • $IP$
  • D
    $TCIP$
Answer
Correct option: C.
$IP$
$IP$
View full question & answer
MCQ 301 Mark
A ……… is a program that triggers when some logical conditions are met.
  • Logic Bomb
  • B
    Melissa
  • C
    Trojan Horse
  • D
    Trap Door
Answer
Correct option: A.
Logic Bomb
Logic Bomb
View full question & answer
MCQ 311 Mark
A ………. is a way of accessing system or resources of the system using an undocumented way.
  • A
    Logic Bomb
  • B
    Melissa
  • C
    Trojan Horse
  • Trap Door
Answer
Correct option: D.
Trap Door
Trap Door
View full question & answer
MCQ 321 Mark
The ……… virus hybridizes characteristics of viruses and worms.
  • A
    Logic Bomb
  • Melissa
  • C
    Trojan Horse
  • D
    Trap Doors
Answer
Correct option: B.
Melissa
Melissa
View full question & answer
MCQ 331 Mark
A Virus is an independent program whereas a Worm is an independent ……….
  • A
    Service
  • B
    Function
  • C
    Service
  • Utility
Answer
Correct option: D.
Utility
Utility
View full question & answer
MCQ 341 Mark
The difference between a ……… and a Worm is the ability to propagate itself independently.
  • A
    Worms
  • Virus
  • C
    Trojan Horse
  • D
    Trap Doors
Answer
Correct option: B.
Virus
Virus
View full question & answer
MCQ 351 Mark
A ………. is an independent program containing harmful software that usually propagates itself on networked systems connected to infected systems.
  • Worms
  • B
    Melissa
  • C
    Trojan Horse
  • D
    Trap Doors
Answer
Correct option: A.
Worms
Worms
View full question & answer
MCQ 361 Mark
Popular example of a Trojan horse is the ……… grabber.
  • A
    Login
  • Password
  • C
    User name
  • D
    Program
Answer
Correct option: B.
Password
Password
View full question & answer
MCQ 371 Mark
The name “……….” is given from Greek Mythology and the story of Troy.
  • A
    Worms
  • B
    Virus
  • Trojan Horse
  • D
    Traps
Answer
Correct option: C.
Trojan Horse
Trojan Horse
View full question & answer
MCQ 381 Mark
A ………. is a program or code segment that hides inside a program and performs a harmful function to computer resources.
  • A
    Worms
  • B
    Virus
  • Trojan Horse
  • D
    Traps
Answer
Correct option: C.
Trojan Horse
Trojan Horse
View full question & answer
MCQ 391 Mark
Antivirus software is available at ………
  • A
    wwwclamantivirus.com
  • B
    www.clamvirus.com
  • www.clamwin.com
  • D
    www.clam.com
Answer
Correct option: C.
www.clamwin.com
www.clamwin.com
View full question & answer
MCQ 401 Mark
……….. antivirus software is an example of free and open source antivirus software.
  • A
    Cleaner
  • Clam
  • C
    Worms
  • D
    Bug
Answer
Correct option: B.
Clam
Clam
View full question & answer
MCQ 411 Mark
When the ……… program is executed, the virus is spread.
  • Host
  • B
    Main
  • C
    Application
  • D
    System
Answer
Correct option: A.
Host
Host
View full question & answer
MCQ 421 Mark
A parasite program is usually attached to some fancy and attractive software.
  • A
    Bug
  • B
    Disease
  • C
    Germ
  • Virus
Answer
Correct option: D.
Virus
Virus
View full question & answer
MCQ 431 Mark
A ………. is a parasite program that comes along with software.
  • A
    Bug
  • B
    Disease
  • C
    Germ
  • Virus
Answer
Correct option: D.
Virus
Virus
View full question & answer
MCQ 441 Mark
While working online, people like to go for safe and ………. operations.
  • Reliable
  • B
    Unreliable
  • C
    Dependable
  • D
    Undependable
Answer
Correct option: A.
Reliable
Reliable
View full question & answer
MCQ 451 Mark
………. systems are difficult to survive without proper security provisions
  • A
    Shopping Sites
  • B
    Bill Payments
  • C
    Banking
  • All of these
Answer
Correct option: D.
All of these
All of these
View full question & answer
MCQ 461 Mark
……….. security counts much when it comes to financial and e-commerce application.
  • A
    Internet
  • Network
  • C
    Services
  • D
    Security
Answer
Correct option: B.
Network
Network
View full question & answer
MCQ 471 Mark
By developing proper ………. measures any organization can improve its brand image and quality of services.
  • A
    Internet
  • B
    Network
  • C
    Services
  • Security
Answer
Correct option: D.
Security
Security
View full question & answer
MCQ 481 Mark
The Information in the form of ……… must be protected and kept hidden from public.
  • A
    Letters
  • B
    Spreadsheets
  • Documents
  • D
    Mail
Answer
Correct option: C.
Documents
Documents
View full question & answer
MCQ 491 Mark
Organization resources include not only hardware and software but ……… also
  • Information
  • B
    Assets
  • C
    Property
  • D
    Belongings
Answer
Correct option: A.
Information
Information
View full question & answer
MCQ 501 Mark
An organization in a shared environment has to keep the information secured against ………. users.
  • A
    Authenticated
  • Unauthenticated
  • C
    Resourceful
  • D
    Shared
Answer
Correct option: B.
Unauthenticated
Unauthenticated
View full question & answer
MCQ . (1 Marks) - Computer STD 9 Questions - Vidyadip