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Chapter 2 QUIZ

Authored by shaloof khalid

Computers

10th Grade

Used 14+ times

Chapter 2 QUIZ
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

When carrying out asymmetric encryption , which of the following users would keep the private key.

sender

receiver

all members

none of above

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following is the final number in the code , which is calculated from rest of the numbers in the code.

Parity Check

CheckSum

Checkdigit

EchoCheck

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following statements about asymmetric encryption is true? Circle the correct answer.

uses a public key only

uses both public and private key

always uses 64 bit encryption

none of above

4.

MULTIPLE CHOICE QUESTION

10 mins • 5 pts

Media Image

Using an algorithm for ISBN- 13, calculate the CheckDigit for:

978151045759

2

3

1

5

5.

MULTIPLE CHOICE QUESTION

10 mins • 5 pts

Media Image

Find the Check Digit using Modulo 11 method.

213111000428

(note that step of weights assigning, will change as per length of the number)

5

6

7

10

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In encryption, which of the following is the term used to describe the message before it is encrypted. Choose correct answer.

Simpletext

plaintext

notext

ciphertext

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following methods uses an extra bit , added to a byte to ensure it contains an even number of 1's or odd number of 1's ? Choose correct answer.

CRC

ECHO

PARITY

ARQ

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