Year 9 EOT1 Nov 2022

What is the term for a message that has been encoded using a cipher? (a)  

• Encryption
• Decryption
• Key
• I don't know

Answer explanation

Encryption is the process of converting a message using a cipher so that it is unreadable to the average person

Tags

cybersecurity

ciphers

The Caesar Cipher is known as what type of cipher?

• Substitution

• Shift

• I don't know

Answer explanation

It is a shift cipher as we move the alphabet along a certain direction.

Tags

cybersecurity

ciphers

Who made the caesar cipher?

• Flarmaan FLexer

• Julius Caesar

• Bob Marley

• Cnad

What type of Encryption is this?

• Caeserpen

• Crosspen

• Pigpen

• Dogpen

Bubble sort takes the first two values of a list, and swaps them if wrong?

• True
• False

Which type of sort algorithm is this?

• Bubble
• Merge
• Insertion

Which of these is a type of searching algorithm?

• Linear search
• Word search
• Search engine
  

Select the best description to explain what a binary search algorithm is.

• Put the elements in order, check each item in turn.

• Put the elements in order, compare with the middle value, split the list in order and repeat.

• Elements do not need to be in order, check each item in turn.

• Elements do not need to be in order, compare to the middle value, split the list in order and repeat

A linear search is to be performed on the list:
12   6   8  1  3
How many comparisons would it take to find number 1?

• 1
• 2
• 3
• 4

What is abstraction?

• The process of filtering out unnecessary detail.
• The process of filtering out irrelevant characteristics
• The process of filtering out irrelevant characteristics and unnecessary detail.