Introduction to Cyber Society MCQs with Answers
Practice important Introduction to Cyber Society MCQs with answers and explanations.
Multiple Choice Questions
Q91: What is the method of hiding plaintext to conceal its substance called?
- A: Decryption
- B: Encryption
- C: Ciphering
- D: Encoding
View Answer
B
Q92: What is the result of encrypting plaintext?
- A: Plaintext
- B: Secret text
- C: Hidden text
- D: Cipher text
View Answer
D
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
View Answer
B
Q94: In Caesar's cipher, what does the letter 'S' encrypt to?
- A: T
- B: U
- C: V
- D: W
View Answer
C
Q95: What is a cipher text?
- A: A method of writing
- B: Unreadable text after encryption
- C: Plaintext before encryption
- D: A secure key
View Answer
B
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
View Answer
B
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
View Answer
C
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
View Answer
D
Q99: What does a Certification Authority (CA) do in Public Key Infrastructures?
- A: Encrypts data
- B: Issues certificates
- C: Deciphers messages
- D: Transmits keys
View Answer
B
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
View Answer
B