CS 160: INTRODUCTION TO
COMPUTER SCIENCE QUESTIONS
AND CORRECT ANSWERS
Which of the following best describes the OR operation? - CORRECT
ANSWER-if either input is TRUE OR both inputs are TRUE then the result
is TRUE, otherwise the result is FALSE
Which of the following bit patterns represents the value -9 in two's
complement notation? - CORRECT ANSWER-11110111
http://www.exploringbinary.com/twos-complement-converter/
Factors which affect the performance of magnetic disk storage systems
include - CORRECT ANSWER-The time required to move the read/write
heads from one track to another
,The time required for data to rotate around to the read/write head
The data transfer rate
Which of the following bit patterns represents the value 9 in two's
complement notation? - CORRECT ANSWER-00001001
http://www.exploringbinary.com/twos-complement-converter/
Which of the following bit patterns cannot be expressed in hexadecimal
notation? - CORRECT ANSWER-0FDG 110011
http://www.binaryhexconverter.com/hex-to-decimal-converter
http://www.exploringbinary.com/twos-complement-converter/
Which of the following bit patterns (represented in hexadecimal notation)
represents a positive number in 8-bit two's complement notation? -
,CORRECT ANSWER-http://www.binaryhexconverter.com/hex-to-decimal-
converter
http://www.exploringbinary.com/twos-complement-converter/
Which of the following representations in two's complement notation
represents the largest value? - CORRECT ANSWER-00000010
http://www.exploringbinary.com/twos-complement-converter/
Assuming that each of the following bit patterns originally had even parity,
which one contains an error? - CORRECT ANSWER-010011000
Which of the following data storage systems provides the most efficient
random access to individual data items? - CORRECT ANSWER-Main
memory
, Which of the following is the binary representation of 6 5/8? - CORRECT
ANSWER-110.101
http://www.exploringbinary.com/twos-complement-converter/
convert the fraction to decimal and then add on to the number.
Which of the following mass storage systems is preferred because it has
the fewest moving parts? - CORRECT ANSWER-Flash drives
Which of the following representations in two's complement notation
represents the smallest value? - CORRECT ANSWER-11110000
http://www.exploringbinary.com/twos-complement-converter/
What is the largest value that can be stored in 32 bits using two's
complement notaton? - CORRECT ANSWER-4,294,967,295
What is the largest value that can be stored in 16 bits using two's
complement? - CORRECT ANSWER-2,147,483,647
COMPUTER SCIENCE QUESTIONS
AND CORRECT ANSWERS
Which of the following best describes the OR operation? - CORRECT
ANSWER-if either input is TRUE OR both inputs are TRUE then the result
is TRUE, otherwise the result is FALSE
Which of the following bit patterns represents the value -9 in two's
complement notation? - CORRECT ANSWER-11110111
http://www.exploringbinary.com/twos-complement-converter/
Factors which affect the performance of magnetic disk storage systems
include - CORRECT ANSWER-The time required to move the read/write
heads from one track to another
,The time required for data to rotate around to the read/write head
The data transfer rate
Which of the following bit patterns represents the value 9 in two's
complement notation? - CORRECT ANSWER-00001001
http://www.exploringbinary.com/twos-complement-converter/
Which of the following bit patterns cannot be expressed in hexadecimal
notation? - CORRECT ANSWER-0FDG 110011
http://www.binaryhexconverter.com/hex-to-decimal-converter
http://www.exploringbinary.com/twos-complement-converter/
Which of the following bit patterns (represented in hexadecimal notation)
represents a positive number in 8-bit two's complement notation? -
,CORRECT ANSWER-http://www.binaryhexconverter.com/hex-to-decimal-
converter
http://www.exploringbinary.com/twos-complement-converter/
Which of the following representations in two's complement notation
represents the largest value? - CORRECT ANSWER-00000010
http://www.exploringbinary.com/twos-complement-converter/
Assuming that each of the following bit patterns originally had even parity,
which one contains an error? - CORRECT ANSWER-010011000
Which of the following data storage systems provides the most efficient
random access to individual data items? - CORRECT ANSWER-Main
memory
, Which of the following is the binary representation of 6 5/8? - CORRECT
ANSWER-110.101
http://www.exploringbinary.com/twos-complement-converter/
convert the fraction to decimal and then add on to the number.
Which of the following mass storage systems is preferred because it has
the fewest moving parts? - CORRECT ANSWER-Flash drives
Which of the following representations in two's complement notation
represents the smallest value? - CORRECT ANSWER-11110000
http://www.exploringbinary.com/twos-complement-converter/
What is the largest value that can be stored in 32 bits using two's
complement notaton? - CORRECT ANSWER-4,294,967,295
What is the largest value that can be stored in 16 bits using two's
complement? - CORRECT ANSWER-2,147,483,647
