Ciphertext - Study guides, Class notes & Summaries
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AQA A-level COMPUTER SCIENCE 7517/2 Paper 2 Version: 1.0 Final *JUN237517201* IB/G/Jun23/E7 7517/2QUESTION PAPER & MARKING SCHEME/ [MERGED] Mark scheme June 2023
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AQA 
A-level 
COMPUTER SCIENCE 
7517/2 
Paper 2 
Version: 1.0 Final 
*JUN* 
IB/G/Jun23/E7 7517/2 
For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
TOTAL 
Monday 19 June 2023 Morning Time allowed: 2 hours 30 minutes 
Materials 
For this paper you must have: 
• a calculator. 
Instructions 
• Use black ink or black ball-point pen. 
• Fill in the boxes at the top of this page. 
• Answer all questions. 
• You must answer the questions in the spaces provided. Do no...
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ISC2 Cybersecurity Certification (CC) Exam Questions and Answers 2024 Graded A
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ISC2 Cybersecurity Certification (CC) Exam 
Questions and Answers 
What type of security training is specifically designed to educate employees about attack 
techniques? - Answer ️️ -capture the flag 
Linda's organization recently experienced a social engineering attack. The attacker called a help 
desk employee and persuaded her that she was a project manager on a tight deadline and locked 
out of her account. The help desk technician provided the attacker with access to the account. 
What ...
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WGU C836 Fundamentals of Information Security Final Exam | Questions and Verified Answers| 2023/ 2024 Update
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WGU C836 Fundamentals of Information Security Final Exam | Questions and Verified Answers| 2023/ 2024 Update 
 
Q: What process ensures compliance with applicable laws, policies, and other bodies of administrative control, and detects misuse? This task contains the radio buttons and checkboxes for options. The shortcut keys to perform this task are A to H and alt+1 to alt+9. 
 
A. Nonrepudiation 
B. Deterrence 
C. Auditing 
D. Accountability 
E. Authorization 
 
 
Answer: 
C. Auditing 
 
Lesson...
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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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Cryptography and Network Security Principles and Practice 8th Edition, William Stallings (SOLUTION MANUAL, 2024), All Chapters 1-20 Covered |Latest Complete Guide A+.
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Cryptography and Network Security Principles and Practice 8th Edition, William Stallings (SOLUTION MANUAL, 2024), All Chapters 1-20 Covered, Latest Guide A+. 
TABLE OF CONTENTS 
Chapter 1: Introduction..............................................................................................5 
Chapter 2: Classical Encryption Techniques ............................................................7 
Chapter 3: Block Ciphers and the Date Encryption Standard .............................. 13 
Cha...
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ISC2 – CC Exam Questions with 100% Correct Answers | Verified | Updated 2024, 345 Questions and Correct Answers. ISC2 - CC Terms additional.
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ISC2 – CC Exam Questions with 100% Correct Answers | Verified | Updated 2024, 345 Questions and Correct Answers. ISC2 - CC Terms additional. 
 
Application Server 
A computer responsible for hosting applications to user workstations. NIST SP 800-82 Rev.2 
Asymmetric Encryption 
An algorithm that uses one key to encrypt and a different key to decrypt the input plaintext. 
Checksum 
A digit representing the sum of the correct digits in a piece of stored or transmitted digital data, against which...
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UPDATED 2024/2025 D487: SECURE SOFTWARE DESIGN QUESTIONS VERIFIED QUESTIONS AND ANSWERS 100% CORRECT
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What are the two common best principles of software applications in the development process? Choose 2 answers. 
Quality code Secure code Information security Integrity 
Availability: Quality code Secure code 
"Quality code" is correct. Quality code is efficient code that is easy to maintain and reusable. 
"Secure code" is correct. Secure code authorizes and authenticates every user transaction, logs the transaction, and denies all unauthorized requisitions. 
What ensures that the user has the ap...
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WGU C839 - Intro to Cryptography with 100% Verified Questions And Answers
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WGU C839 - Intro to Cryptography with 100% Verified Questions And Answers 
 
 
Which of the following most accurately defines encryption? 
 
A changing a message so it can only be easily read by the intended recipient 
 B Making binary changes to a message to conceal it 
C changing a message using complex mathematics D Applying keys to plain text A 
 
What type of encryption uses different keys to encrypt and decrypt the message? 
 
A Symmetric 
B Private key 
C Secure 
D Asymmetric D 
The m...
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WGU C839 EXAM 100 REAL OA EXAM QUESTIONS AND CORRECT ANSWERS 2023-2024 (VERIFIED ANSWERS)|AGRADE
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WGU C839 EXAM 100 REAL OA EXAM QUESTIONS AND CORRECT ANSWERS 2023-2024 (VERIFIED ANSWERS)|AGRADE 
 
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 only User B can read, User A must encrypt message with which of the following keys? 
 
A User A's public key 
B User A's private key 
C User ...
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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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C810 Foundations in Healthcare Data Management 2023.2024 verified to pass
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C810 Foundations in Healthcare Data ManagementUS Constitution - correct answer Which of the following sources of law is the highest law in the United States? 
 
Common Law - correct answer Which of the following four sources of law derives from the English common law and is also known as judge-made or case law? 
 
plaintiff - correct answer The party in a civil case that brings the action and has the burden of proof is the 
 
defendent - correct answer The party who allegedly committed the wrong...
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