Binary

Description

GCSE Computer Science (Binary) Quiz on Binary, created by Levnt on 23/05/2016.
Levnt
Quiz by Levnt, updated more than 1 year ago
Levnt
Created by Levnt over 8 years ago
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Resource summary

Question 1

Question
What is a signed integer?
Answer
  • An integer that can be a either a negative or positive number
  • An integer that is converted into binary
  • An integer that can be processed by the CPU

Question 2

Question
What is a floating point number?
Answer
  • A number that has no fixed value
  • A number that has a decimal point
  • A number that has had an operation carried out on it in the ALU

Question 3

Question
Why does ipv6 allow more IP addresses than ipv4?
Answer
  • ipv6 uses six binary numbers but ipv4 only uses four
  • ipv6 addresses are 128-bit and ipv4 addresses are 32-bit
  • ipv6 can do binary calculations faster than ipv4

Question 4

Question
What is -6 in binary converted using two's complement?
Answer
  • 1010
  • 1011
  • 0010

Question 5

Question
What is three in binary converted using two's complement?
Answer
  • 0100
  • 0111
  • 0011

Question 6

Question
What is the result of 9+8 in binary if processed in a system which only supports 4-bit numbers?
Answer
  • 0011
  • 0001
  • 10001

Question 7

Question
How could the number -5 be represented using 8-bit binary sign and magnitude?
Answer
  • 00000101
  • 100000101
  • 10000101

Question 8

Question
What is the result of this binary addition: 0110 + 0101 ?
Answer
  • 1011
  • 1111
  • 0111

Question 9

Question
What is the largest unsigned base 10 integer value that 7 bits can be used to represent?
Answer
  • 256
  • 127
  • 255

Question 10

Question
When does overflow happen?
Answer
  • When the pattern of bits is too large to be represented by the number of bits available in a register
  • When a machine code program crashes
  • When two binary numbers are successfully added together
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