A project ________ oversees all the details of the project plan
A) predecessor B) planner C) manager D) executor
C
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In a system using public-key cryptography, site B wants to fool C by impersonating A. B waits until A requests to communicate with B. A does this by sending an “I want to communicate” message to B, stating its name (A) and encrypted with B’s public key. Then B springs the trap. It sends an “I want to communicate” message to C claiming it is A and encrypted with C’s public key. To ensure that it is actually communicating with A, C replies (to B) with a message obtained by encrypting a large random number, N , w ith A’s public key. If C gets a response containing N + 1 encrypted with C’s public key, it would like to conclude that the responder is A because only A could have decrypted C’s message. C gets such a response. However, this conclusion is wrong because the
response comes from B. Explain howthis could have happened. (Hint: The protocol can be corrected if the encrypted text of each message includes the name of the sender.) What will be an ideal response?
____ is an encryption technique that uses public and private keys along with a computer algorithm that relies on factoring large prime numbers.
A. AES B. RSA C. DES D. Twofish
Would you use the mean, median, or mode to give a fair representation of the "average" in the following situation? Builders planning houses are interested in the average size of an American family.
A. mode B. median C. median and mean D. mean E. none of these
Adding an abstract modifier to a class prohibits other classes from deriving from that class.
Answer the following statement true (T) or false (F)