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1.3 OCR Networks Lesson 8

Total questions: 20

Worksheet time: 40mins

Name
Class
Date
1.
IPv4 IP addresses are ___ bit binary numbers
a)
2
b)
8
c)
32
d)
128
2.

Question 1: What does HTTPS stand for? (1-4)

a)

Hypertext Transfer Protocol Secure

b)

Hyper Text Protocol Secure

c)

Hidden Text Transfer Protocol Station

d)

Hypertext Transfer Protocol Station

3.

Question 6: Where is a MAC address stored? (5-6)

a)

In the computer

b)

On the NIC

c)

As a list in the router

d)

In the modem

e)

On the Internet

4.

Question 9: A MAC Address is usually recorded in (5-6)

a)

Binary

b)

Denary

c)

Floats

d)

Hexadecimal

5.

Question 10: Which of these is NOT a real IP address? (7-9)

a)

192.168.2.156

b)

192.168.2.1

c)

192.168.2.200

d)

192.168.2.328

6.

Convert "GJGB" cipher-text back into plain text using the key: 1

a)

FIFA

b)

HKHC

c)

EHEZ

d)

JMER

7.

A cipher is _________________________.

a)

a person who makes up secret codes

b)

an algorithm that is used to scramble text so that it can be passed in secret

c)

a lock that can be used to lock a message in a lock box

d)

any puzzle, such as a crossword or Sudoku puzzle

8.

A Caesar cipher is an example of a ______________________.

a)

transposition cipher

b)

bimodal cipher

c)

substitution cipher

d)

substantial cipher

9.

Who was the first know user of the Caesar Cipher?

a)

Caesar Romanus

b)

Julius Caesar

c)

Alan Turing

d)

There isn't one

10.

In Cryptography, original message, before being transformed, is called

a)

Simple Text

b)

Plain Text

c)

Cipher Text

d)

Filled Text

11.

An encryption algorithm transforms plain text into:

a)

Cipher text

b)

Simple Text

c)

Empty Text

d)

Plain Text

12.

The _______ is a number or a set of numbers on which the cipher operates.

a)

secret

b)

cipher

c)

key

d)

none of the mentioned

13.

The process of converting a ciphertext into plaintext.

a)

encryption

b)

decryption

c)

plaintext

d)

cryptography

14.
An encryption key is used to help decrypt messages
a)
True
b)
False
15.

TRUE or FALSE


Encrypted passwords will provide guaranteed protection from hacking

a)

TRUE

b)

FALSE

16.
Encryption is a way of 
a)
Securing Information on a network
b)
Securing Viruses
c)
Deleting applications
d)
Hacking Passwords
17.

Taking a secret message and reproducing the original plain text is known as?

a)

Caesar Cipher

b)

Encryption

c)

Cipher Text

d)

Decryption

18.
What does this padlock sign mean in the address bar of your browser?
a)
The site is secure and data is transmitted using SSL
b)
There is a padlock available for purchase
c)
The website does not include "safety locks"
d)
The page is locked down using PHP or ASP scripting
19.
Which of these is NOT a valid MAC Address?
a)
9a-36-3e-52-30-f3:96
b)
70-9B-C5-B5-B3-68
c)
80.1a.e3.4d.b1.b2
d)
ff:ff:ff:ff:ff:ff
20.
What are MAC addresses used to identify?
a)
Hardware
b)
Networking software
c)
DSI-Ware
d)
Firmware