The following quiz “Cryptography and Network Security MCQ Questions And Answers” provides Multiple Choice Questions (MCQs) related to Cryptography and Network Security. These Cryptography and Network Security MCQs are also Interviews (campus interview, walk-in interview, company interview), Placement or recruitment, entrance examinations, and competitive examinations oriented. You can practice the below questions to improve your Cryptography and Network Security skills. You can click on the View Answer button to check the answer. Let’s solve this Cryptography and Network Security MCQ Questions And Answers Quiz. Cryptography is made up of “crypt” which means “hidden” and “graphy” means “writing”. So, it is a technique of securing information and communications through the use of codes so that only those people for whom the information is intended can understand it and can do further process.

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1. _______ is the science and art of transforming messages to make them secure and immune to attacks

1. Cryptography
2. Calligraphy
3. Cryptanalysis
4. None of the above

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2. In symmetric-key cryptography, the key locks and unlocks the box is

1. Shared
2. Same
3. Private
4. Public

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3. The acronym DES stands for

1. Digital Evaluation System
2. Digital Encryption System
3. Digital Encryption Standard
4. Double Encryption Standard

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4. Which of the following is not a physical layer vulnerability?

1. Physical damage or destruction of data and hardware
2. Keystroke and other input logging
3. Physical theft of data and hardware
4. Unauthorized network access

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5. Encryption Strength is based on

1. Length of key
2. Secrecy of key
3. Strength of algorithm
4. All of the above

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Data Science MCQ Questions and Answers

6. An asymmetric-key (or public-key) cipher uses

1. 2 Key
2. 4 Key
3. 3 Key
4. 1 Key

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7.  In asymmetric key cryptography, the private key is kept by ________

1. Sender
2. Receiver
3. All the connected devices to the network
4. Sender and receiver

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8. The keys used in cryptography are

1. Private Key
2. Public Key
3. Secret Key
4. All of the above

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9. The ________ is the original message before transformation

1. Secret-text
2. Plaintext
3. Ciphertext
4. None of the above

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10. The ________ is the message after transformation

1. Plaintext
2. Secret-text
3. Ciphertext
4. None of the above

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