2nd Form Revision EOY Exam

2nd Form Revision EOY Exam

GRADED A+ (ACTUAL EXAM ) Questions and Answers (Solved)

• Binary

Answer: A counting system using Base 2 consisting of 0s and 1s. 0

= off and 1 = on.

• 11101101 binary into denary

Answer: 237 denary in binary

• 00111101 binary into denary

Answer: 61 denary in binary

• 161 denary into binary

Answer: 10100001 binary in denary

• 1 byte

Answer: 8 bits.

• A nibble

Answer: Half a byte or 4 bits.

• Variable

Answer: A named value that can be changed as the programming is

running.

8. width=int(input("Enter the width:"))

Answer: In Python, asks the user to enter a value for the width of the

shape and then converts the value into an integer and assigns the value to the variable "width".

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• IF Statement

Answer: A type of selection statement used to make decisions.

• Hex AD into denary

Answer: 173 denary in Hex

• Hex 2B into binary

Answer: 0010 1011 binary in Hex

• Hex 23 into denary

Answer: 35 denary in Hex

• Denary 255 into Hex/Binary

Answer: Hex FF/Binary 1111 1111 in Denary

• Iteration

Answer: In programming the code will repeat in a loop. There are

two types of loops, a FOR loop and a WHILE loop.

• Sequence

Answer: In programming is the code will run in the order written,

line by line.

• Selection

Answer: In programming is an IF statement. The code will run IF a

condition has been met.

• Alan Turing

Answer: A mathematician who worked at Bletchley Park during

World War

• Created the Bombe which was used to crack the Enigma code.

• The Bombe

Answer: The name of the machine used to crack the Enigma code

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