Computer Science IGCSE

What is the denary equivalent of 00110111

• 53

• 54

• 55

• 56

What is the binary equivalent of the denary value 240

• 11110000

• 11111000

• 01111000

• 10111000

Convert 4096 kilobytes (kB) to megabytes (MB)

• 2MB

• 1MB

• 4MB

• 8MB

Convert the hexadecimal value 4A2F into denary

• 18990

• 18991

• 18992

• 18993

The direction and method of data transmission where data is sent in one direction only, one bit at a time, along a single wire

• Simplex, Parallel

• Duplex, Serial

• Simplex, Serial

• Half-Duplex, Parallel

Explain why parity checking is done

What is meant by URL ?

• Uniform Response Locator

• Uniform Resource Locator

• Universal Response Location

• Universal Resource Location

Explain the difference between IP Address and MAC address

Write two advantages of using SSDs over HDDs for storage

State two benefits of using a USB connection