N5 Computing Quiz - Part 1

What is the 8-bit binary representation of the decimal number 54?

• 00110110

• 11001010

• 10101010

• 01100100

What is the mantissa and exponent in the floating-point representation of the speed of light, 299,792.458 km per second, when expressed as 0.299792458 x 10^6?

• Mantissa: 0.299792458, Exponent: 6

• Mantissa: 299792.458, Exponent: -6

• Mantissa: 2.99792458, Exponent: 5

• Mantissa: 299792458, Exponent: -8

Take a look at this code. What will happen if a user inputs a number less than 13 or greater than 21 in the program?

• The program will terminate immediately

• The program will output the number

• The program will ask the user to enter the number again

• The program will store the number in a database

Looking at the same code, which of the following is a valid input according to the program's validation loop?

• 10

• 22

• 13

• 5

What is the condition that leads to the payment step in the ticketing system diagram?

• The number of printed tickets is less than the number of tickets requested by the customer.

• The number of printed tickets is equal to the number of tickets requested by the customer minus one.

• The number of printed tickets is greater than the number of tickets requested by the customer.

• The number of printed tickets is equal to the number of tickets requested by the customer.

Looking at the same flowchart; what happens if the condition
'is printed tickets = number of tickets -1'
is not met in the ticketing system diagram?

• The system takes payment for the tickets.

• The system generates a code for the ticket.

• The system asks for the name for the ticket.

• The system prints the ticket with code and name.

Look at this pseudocode for a Rock; Paper, Scissors game. According to the game design, which action is repeated from round 0 to 4?

• Display winner

• Set scores to zero

• Get computer choice and player choice

• Update score for winner

How would a computer typically store a bit-mapped graphic using 4 colours such as this one?

• As a vector graphic

• Each pixel is stored as bits. As there are 4 colours, each pixel will need 2 bits to describe it

• In a single binary file

• Through an external graphics card