Stream of Knowledge

 Cyber Attack Countermeasures :  Module 4 Quiz #cyber #quiz #coursera #exam #module #answers 1 . Question 1 CBC mode cryptography involves which of the following? 1 / 1  point Mediation of overt channels Mediation of covert channels Auditing of overt channels Auditing of covert channels None of the above Correct Correct! CBC mode is specifically designed to close covert communication channels in block encryption algorithms. 2 . Question 2 Which is a true statement? 1 / 1  point Conventional crypto scales perfectly well Conventional crypto scales poorly to large groups Conventional crypto does not need to scale All of the above Correct Correct! The symmetric key based method inherent in conventional cryptography does not scale well to large groups. 3 . Question 3 Public Key Cryptography involves which of the following? 1 / 1  point Publicly known secret keys Publicly known private keys Publicly known public keys All of the above Correct Correct! Public keys, by definition, are pub