Network Security Quiz

A person who enjoys learning details about computers and how to enhance their capabilities.

• Cracker

• Hacker

• App controller

• Site controller

In a Rail Fence cipher with 4 rails, if the plaintext is "CRYPTOGRAPHY," what is the ciphertext?

• "CRAOPYRPTOHY"

• "COYRHPTPARYG"

• "CPOTRAGYPRHY"

• "CRPOTPGRYAOYH"

If you have a Caesar cipher ciphertext "WKLVLV DQG WKLVV" and suspect it was encrypted with a shift of 3, what is the decrypted message?

• THREE TIMES THREE

• SHIFTING AND SHIFT

• HELLO WORLD HELLO

• ENCRYPTED AND ENCRYPT

Define Steganography with example.

Which cryptographic concept ensures that a message has not been altered in transit and also identifies the sender?

• Confidentiality

• Integrity

• Availability

• Non-repudiation

What type of encryption relies on the mathematical problem of factoring large composite numbers into their prime factors for security?

• Symmetric-key encryption

• Asymmetric-key encryption

• Hashing

• Steganography

What is the primary advantage of the Running Key Transposition Cipher over traditional transposition ciphers?

• It uses a stronger key

• It is more resistant to frequency analysis

• It is faster for encryption

• It is simpler to implement

Which of the following was the first diagram substitution cipher?

• a) autokey cipher

• b) hill cipher

• c) one time pad cipher

• d) playfair cipher

What will be the plain text corresponding to cipher text "BPKYFS" if playfair cipher is used with keyword as "SECRET" (assuming j is combined with i)?

• a) INDIAN

• b) WORLD

• c) DOLLAR

• d) HELLO

What is the rule for encryption in playfair cipher if the letters in a pair does not appear in same row or column?

• they are replaced by the letter appearing immediately below them respectively

• they are replaced by the letter appearing immediately right to them respectively

• they are replaced by the letter of the same row at the corner of the rectangle defined by the original pair respectively

• that pair is neglected