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C839 - PRE-ASSESSMENT INTRODUCTION TO CRYPTOGRAPHY QUESTIONS AND ANSWERS 2025

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Which encryption standard uses the same key to encrypt and decrypt messages? - ANSWER Symmetric Key Encryption Which algorithm is designated as a Type 2 product by the National Security Agency (NSA)? - ANSWER SKIPJACK What is the most commonly used format for certificates? - ANSWER X.509 v3 *Version 3* What is referenced to determine if a certificate has been revoked? - ANSWER Certificate Revocation List *(CRL)* What needs to be installed on *end users' computers* to allow them to *trust* applications that have been *digitally signed* by the developer? - ANSWER Sender's public key *(DEVELOPER's)* Which type of certificate *must be certified by an authority* to verify it with other participants? - ANSWER Public Certificate What is an attribute of the Rivest Cipher 4 (RC4) algorithm? - ANSWER It requires a unique nonce. *(# used ONCE)* Which mode generates the key stream with a nonce and incrementing value? - ANSWER Counter (CTR) *Generates the next keystream block* by encrypting successive *values* of a "counter" Which mode is a stream algorithm that concatenates an incrementing value with a nonce? - ANSWER Counter (CTR) Which key would an administrator us

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WGU C839
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WGU C839

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ALPHA PHI ALPHA CHAPTER 4 QUESTIONS
AND ANSWERS WITH SOLUTIONS 2025
What is the title of Chapter 4 of the history book? - ANSWER Local and National Strivings



What was decided about the delegates' expenses? - ANSWER The chapter covered them



What did the delegates do with the expense money? - ANSWER They donated the money back to the
chapter



What did the freshmen committee propose? - ANSWER The encouragement in scholarship, on the part
of the freshmen, who were prospective members



What did Alpha Chapter do with Freshmen interests - ANSWER They voted to not accept freshmen



What was the last year that Alpha chapter accepted freshmen - ANSWER 1918



What practice came out of the freshmen committee report - ANSWER Weekly Progress Reports



How many rules were made from the Freshmen Committee Report - ANSWER 8



Name 2 rules that the members had to adhere to - ANSWER 1. Every freshman shall submit his program
to the

committee.



2. A weekly report, according to above form, be

reported to committee at the end of each week

by each freshman.

a. Deficiencies must be made up within one

week from date of report.

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WGU C839
Course
WGU C839

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