Encryption algorithms Study guides, Class notes & Summaries
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Computer Security Principles and Practice 4th Edition By William Stallings - Test Bank
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Chapter 2 – Cryptographic Tools 
 
TRUE/FALSE QUESTIONS: 
 
T	F	1. Symmetric encryption is used primarily to provide confidentiality. 
T	F	2. Two of the most important applications of public-key encryption are 
 digital signatures and key management. 
 
T	F	3. Cryptanalytic attacks try every possible key on a piece of ciphertext 
 until an intelligible translation into plaintext is obtained. 
 
T 	F	4. The secret key is input to the encryption algorithm. 
 
T	F	5. Triple DES tak...
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WGU-C838-Pre-Assessment Exam 2023 update
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WGU-C838-Pre-Assessment Exam 2023 update 
 
"Which phase of the cloud data lifecycle allows both read and process functions to be performed? 
(A) Share 
(B) Store 
(C) Create 
(D) Archive" - Answer Create 
 
"Which phase of the cloud data security lifecycle typically occurs simultaneously with creation? 
(A) Use 
(B) Share 
(C) Store 
(D) Destroy" - Answer Store 
 
"Which phase of the cloud data life cycle uses content delivery networks? 
(A) Share 
(B) Create 
(C) Destroy 
(D) Archive" - Answer...
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WGU Course C838 - Managing Cloud Security| 1037 QUESTIONS| WITH COMPLETE SOLUTIONS
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Which phase of the cloud data life cycle allows both read and process functions to be performed? 
 
A Create 
B Archive 
C Store 
D Share correct answer: A 
 
Which phase of the cloud data security life cycle typically occurs simultaneously with creation? 
 
A Share 
B Store 
C Use 
D Destroy correct answer: B 
 
Which phase of the cloud data life cycle uses content delivery networks? 
 
A Destroy 
B Archive 
C Share 
D Create correct answer: C 
 
Which phase of the cloud data life cycle is...
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WGU Course C839 - Intro to Cryptography Exam 2022 completely Solved
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What type of encryption uses different keys to encrypt and decrypt the 
message? 
A Symmetric 
B Private key 
C Secure 
D Asymmetric D 
The most widely used asymmetric encryption algorithm is what? 
A RSA 
B Vigenere 
C DES 
D Caesar Cipher A 
Original, unencrypted information is referred to as ____. 
A text 
B plaintext 
C cleantext 
D ciphertext B 
Which of the following is NOT an asymmetric system? 
A PGP 
B RSA 
C SSL 
D DES D 
In order for User A to send User B an encrypted message that onl...
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WGU C839 - Introduction to Cryptography| 190 QUESTIONS| WITH COMPLETE SOLUTIONS.
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WGU C839 - Introduction to Cryptography | 190 QUESTIONS | WITH COMPLETE SOLUTIONS. 
Serpent CORRECT ANSWERS: Symmetric Block Cipher 
Block Size: 128 bits 
Key Size: 128, 192, or 256 bits 
Rounds: 32 
Network: Substitution-Permutation 
Tiny Encryption Algorithm (TEA) CORRECT ANSWERS: Symmetric Block Cipher 
Block Size: 64 bits 
Key Size: 128 bits 
Cryptography CORRECT ANSWERS: Deciphering secret writings, kryptos means hidden and 
grafo means write. Must not be readable by interlopers over secure...
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WGU Course C838 - Managing Cloud Security with complete solutions
- Exam (elaborations) • 148 pages • 2022
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Which phase of the cloud data life cycle allows both read and process functions to be performed? 
 
A Create 
B Archive 
C Store 
D Share 
A 
 
 
Which phase of the cloud data security life cycle typically occurs simultaneously with creation? 
 
A Share 
B Store 
C Use 
D Destroy 
B 
 
 
 
 
 
 
00:57 
01:12 
Which phase of the cloud data life cycle uses content delivery networks? 
 
A Destroy 
B Archive 
C Share 
D Create 
C 
 
 
Which phase of the cloud data life cycle is associated with crypt...
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WGU-C838 2023 -2024 Exam Questions With Correct Answers
- Exam (elaborations) • 31 pages • 2023
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WGU-C838 2023 -2024 Exam Questions With Correct Answers 
"Which phase of the cloud data lifecycle allows both read and process functions to be performed? 
(A) Share 
(B) Store 
(C) Create 
(D) Archive" - CORRECT ANSWER Create 
 
"Which phase of the cloud data security lifecycle typically occurs simultaneously with creation? 
(A) Use 
(B) Share 
(C) Store 
(D) Destroy" - CORRECT ANSWER Store 
 
"Which phase of the cloud data life cycle uses content delivery...
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WGU C839 Questions and Answers 100% Pass
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WGU C839 Questions and Answers 100% Pass Symmetric Which encryption standard uses the same key to encrypt and decrypt messages? 
Skipjack Which algorithm is designated as a Type 2 product by the National Security Agency (NSA)? 
X.509 v3 What is the most commonly used format for certificates? 
Certificate revocation list (CRL) What is referenced to determine if a certificate has been revoked? 
Sender's public key What needs to be installed on end users' computers to allow them to trust applicat...
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PCI ISA Exam Question And Answers 2022
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For PCI DSS requirement 1, firewall and router rule sets need to be reviewed every _____________ months 
6 months 
 
 
 
Non-console administrator access to any web-based management interfaces must be encrypted with technology such as......... 
HTTPS 
 
 
 
Requirements 2.2.2 and 2.2.3 cover the use of secure services, protocols and daemons. Which of the following is considered to be secure? 
SSH, TLS, IPSEC, VPN 
 
 
 
Which of the following is considered "Sensitive Authentication Data"? 
Car...
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WGU C839- test Questions and Answers Already Passed
- Exam (elaborations) • 10 pages • 2022
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WGU C839- test Questions and Answers Already Passed What is the block and key size for Blowfish - 64 bit block - 32-448 bit key 
What term from the list below best describes a data concealment for covert communication that makes use of LSB replacement? Steganography 
What term from the list below best describes a data concealment for covert communication that makes use of LSB replacement? Steganography 
Which block cipher below uses a block size of 128 bits and key sizes up to 256 bits? TwoFish ...
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IAPP-CIPT Study Guide With A+ 2022
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"Client side" Privacy Risk 
- Represents computers typically used by company employees. 
- These computers normally connect to the company's server-side systems via wireless and hardwired networks. 
- Client side can represent a significant threat to the company's systems as well as sensitive data that may be on the client computers. 
- Employees often download customer files, corporate e-mails and legal documents to their computer for processing. 
- Employees may even store their personal i...