Introduction to Cyber Society MCQs with Answers
Practice important Introduction to Cyber Society MCQs with answers and explanations.
Chapter: 4
Q81:
Which of the following is a good practice to prevent password cracking?
A. Use simple passwords
B. Use the same password for multiple sites
C. Use strong and unique passwords
D. Avoid using passwords
Correct Answer:
C
Chapter: 4
Q82:
What should you do to prevent unauthorized access to your computer?
A. Log out or lock your computer when not in use
B. Share your password with close friends
C. Click on random links
D. Download unfamiliar software
Correct Answer:
A
Chapter: 4
Q83:
Cyber security helps in securing data from _______.
A. viruses
B. authorized access
C. threats such as data theft or misuse
D. physical theft
Correct Answer:
C
Chapter: 4
Q84:
The CIA triad in cyber security stands for Confidentiality, Integrity, and _______.
A. Assurance
B. Access
C. Availability
D. Authentication
Correct Answer:
C
Chapter: 4
Q85:
_______ ensures that data has not been modified.
A. Integrity
B. Availability
C. Confidentiality
D. Accessibility
Correct Answer:
A
Chapter: 4
Q86:
Home computers are often targeted by intruders because they are _______.
A. secure
B. easy to break into
C. difficult to access
D. rarely used
Correct Answer:
B
Chapter: 4
Q87:
A _______ is a program that can duplicate itself, steal information, or harm the system.
A. firewall
B. malware
C. Trojan horse
D. password cracker
Correct Answer:
C
Chapter: 4
Q88:
_______ is a software that infects and damages a computer system without the owner's knowledge.
A. Antivirus
B. Malware
C. Firewall
D. Trojan horse
Correct Answer:
B
Chapter: 4
Q89:
A virus can be spread through _______.
A. CD-ROMs
B. physical contact
C. email attachments
D. website links
Correct Answer:
C
Chapter: 4
Q90:
To protect your computer from threats like viruses, you should install _______.
A. a game
B. random software
C. a security suite
D. nothing
Correct Answer:
C
Chapter: 5
Q91:
What is the method of hiding plaintext to conceal its substance called?
A. Decryption
B. Encryption
C. Ciphering
D. Encoding
Correct Answer:
B
Chapter: 5
Q92:
What is the result of encrypting plaintext?
A. Plaintext
B. Secret text
C. Hidden text
D. Cipher text
Correct Answer:
D
Chapter: 5
Q93:
How did Julius Caesar encrypt his messages?
A. By replacing every letter with the next one
B. By shifting each letter by 3 positions
C. By reversing the letters
D. By using numbers instead of letters
Correct Answer:
B
Chapter: 5
Q94:
In Caesar's cipher, what does the letter 'S' encrypt to?
A. T
B. U
C. V
D. W
Correct Answer:
C
Chapter: 5
Q95:
What is a cipher text?
A. A method of writing
B. Unreadable text after encryption
C. Plaintext before encryption
D. A secure key
Correct Answer:
B
Chapter: 5
Q96:
What is the main challenge of using a shared secret key for encryption?
A. Finding the key
B. Keeping the key secret
C. Deciphering the key
D. Using the key
Correct Answer:
B
Chapter: 5
Q97:
Why is trust in a courier important when using a secret key?
A. To ensure the key is kept safe
B. To make sure the key is not lost
C. To prevent the key from being overheard or intercepted
D. To avoid using a public key
Correct Answer:
C
Chapter: 5
Q98:
What could happen if the secret key is intercepted during transit?
A. Nothing
B. The message remains secure
C. The encryption becomes stronger
D. The information can be read, modified, or forged
Correct Answer:
D
Chapter: 5
Q99:
What does a Certification Authority (CA) do in Public Key Infrastructures?
A. Encrypts data
B. Issues certificates
C. Deciphers messages
D. Transmits keys
Correct Answer:
B
Chapter: 5
Q100:
The role of a Certification Authority (CA) is analogous to which of the following?
A. A mail carrier
B. A government’s Passport Office
C. A military general
D. A secure courier
Correct Answer:
B