Question: Encryption is required to </br> (i) protect business information from eavesdropping when it is transmitted on internet </br> (ii) efficiently use the bandwidth available in PSTN </br> (iii) to protect information stored in companies’ databases from retrieval </br> (iv) to preserve secrecy of information stored in databases if an unauthorized person retrieves it </br>
Answer:
MCQ: Encryption is required to </br> (i) protect business information from eavesdropping when it is transmitted on internet </br> (ii) efficiently use the bandwidth available in PSTN </br> (iii) to protect information stored in companies’ databases from retrieval </br> (iv) to preserve secrecy of information stored in databases if an unauthorized person retrieves it </br>
Correct Answer:
A. i and ii
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Related Questions
- 1. Encryption can be done
- 2. By applying permutation (31254) and substitution by 5 characters away from current character (A Æ F , B Æ G etc..) the following string ABRACADABRA becomes
- 3. The following ciphertext was received. The plaintext was permuted using permutation (34152) and substitution. Substitute character by character +3 (A Æ D, etc). The plain text after decryption is: Cipher text :PDLJDLXHVQC
- 4. By symmetric key encryption we mean
- 5. The Acronym DES stands for
- 6. DES works by using
- 7. DES </br> (i) is a symmetric key encryption method </br> (ii) guarantees absolute security </br> (iii) is implementable as hardware VLSI chip </br> (iv) is a public key encryption method </br>
- 8. DES using 56 bit keys
- 9. Triple DES uses
- 10. ripple DES
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