______ is a step-by-step method for solving a problem or doing a task.
a. A construct
b. A recursion
c. An iteration
d. An algorithm
Answer: d
The _______ manager is responsible for access to I/O devices.
The _______ manager is responsible for access to I/O devices.
a. memory
b. process
c. device
d. file
Answer: c
The _______ manager is responsible for archiving and backup.
The _______ manager is responsible for archiving and backup.
a. memory
b. process
c. device
d. file
Answer: d
_____ can occur if a process has too many resource restrictions.
_____ can occur if a process has too many resource restrictions.
a. Starvation
b. Synchronization
c. Paging
d. Deadlock
Answer: a
To prevent _______, an operating system can put resource restrictions on pro-cesses.
To prevent _______, an operating system can put resource restrictions on pro-cesses.
a. starvation
b. synchronization
c. paging
d. deadlock
Answer: d
The _______ scheduler moves a process from one process state to another.
The _______ scheduler moves a process from one process state to another.
a. job
b. process
c. virtual
d. queue
Answer: b
The _______ scheduler creates a process from a job and changes a process back to a job.
The _______ scheduler creates a process from a job and changes a process back to a job.
a. job
b. process
c. virtual
d. queue
Answer: a
Every process is _______.
Every process is _______.
a. only a job
b. only a program
c. only a partition
d. a job and a program
Answer: d
A program becomes a _______ when it is selected by the operating system and brought to the hold state.
A program becomes a _______ when it is selected by the operating system and brought to the hold state.
a. job
b. process
c. deadlock
d. partition
Answer: a
A process in the ready state goes to the running state when _______.
A process in the ready state goes to the running state when _______.
a. it enters memory
b. it requests I/O
c. it gets access to the CPU
d. it finishes running
Answer: c
A process in the _______ state can go to either the ready, terminated, or waiting states.
A process in the _______ state can go to either the ready, terminated, or waiting states.
a. hold
b. virtual
c. running
d. hold or running
Answer: c
In _______, the program can be divided into equally sized sections called pages, but the pages need not be in memory at the same time for execution.
In _______, the program can be divided into equally sized sections called pages, but the pages need not be in memory at the same time for execution.
a. partitioning
b. paging
c. demand paging
d. demand segmentation
Answer: c
In _______, the program can be divided into differently sized sections.
In _______, the program can be divided into differently sized sections.
a. partitioning
b. paging
c. demand paging
d. demand segmentation
Answer: d
In paging, a program is divided into equally sized sections called _______.
In paging, a program is divided into equally sized sections called _______.
a. pages
b. frames
c. segments
d. partitions
Answer: a
______ is a multi-programming method in which multiple programs are entirely in memory with each program occupying a contiguous space.
______ is a multi-programming method in which multiple programs are entirely in memory with each program occupying a contiguous space.
a. Partitioning
b. Paging
c. Demand paging
d. Demand segmentation
Answer: a
In _______, only one program can reside in memory for execution.
In _______, only one program can reside in memory for execution.
a. mono-programming
b. multi-programming
c. partitioning
d. paging
Answer: a
_____ is multi-programming without swapping.
_____ is multi-programming without swapping.
a. Partitioning
b. Virtual memory
c. Demand paging
d. Queuing
Answer: a
______ is multi-programming with swapping.
______ is multi-programming with swapping.
a. Partitioning
b. Paging
c. Demand paging
d. Queuing
Answer: c
Multi-programming requires a _______ operating-system.
Multi-programming requires a _______ operating-system.
a. batch
b. time-sharing
c. parallel
d. distributed
Answer: b
______ supervises the activity of each component in a computer system.
______ supervises the activity of each component in a computer system.
a. An operating system
b. Hardware
c. A queue
d. An application program
Answer: a
______ is a program that facilitates the execution of other programs.
______ is a program that facilitates the execution of other programs.
a. An operating system
b. Hardware
c. A queue
d. An application program
Answer: a
What is indicated when the domain name has only two letters like .us, .uk, .au, .mx, or .ca
What is indicated when the domain name has only two letters like .us, .uk, .au, .mx, or .ca
a. invalid domain
b. private domain
c. secure domain
d. country domain
Answer: d
Identifies company or commercial sites
Identifies company or commercial sites
a. .org
b. .com
c. .gov
d. .edu
Answer: b
Every computer looking to access the Internet would be known as this
Every computer looking to access the Internet would be known as this
a. client
b. desktop
c. hub
d. server
Answer: a
______ is a protocol for accessing and transferring documents on the WWW.
______ is a protocol for accessing and transferring documents on the WWW.
a. FTP
b. SMTP
c. TELNET
d. HTTP
Answer: d
______ is a protocol for e mail services.
______ is a protocol for e mail services.
a. FTP
b. SMTP
c. TELNET
d. HTTP
Answer: b
______ is a protocol for file transfer.
______ is a protocol for file transfer.
a. FTP
b. SMTP
c. TELNET
d. HTTP
Answer: a
_____ protocol (s) is one of the protocols in the transport layer.
_____ protocol (s) is one of the protocols in the transport layer.
a. Only TCP
b. Only UDP
c. Only SCTP
d. TCP, UDP, and SCTP
Answer: d
IP addresses are currently _______ bits in length.
IP addresses are currently _______ bits in length.
a. 4
b. 8
c. 32
d. 40
Answer: c
Which physical topology uses a hub or switch?
Which physical topology uses a hub or switch?
a. bus
b. ring
c. star
d. bus and ring
Answer: c
What is the domain name in the e mail address kayla@nasa.gov?
What is the domain name in the e mail address kayla@nasa.gov?
a. kayla
b. kayla@nasa.gov
c. nasa.gov
d. gov
Answer: c
The _______ layer of the TCP/IP protocol suite is responsible for source-to-destination delivery of the entire message.
The _______ layer of the TCP/IP protocol suite is responsible for source-to-destination delivery of the entire message.
a. transport
b. network
c. data-link
d. session
Answer: b
The _______ layer of the TCP/IP protocol suite is responsible for node-to-node delivery of a frame between two adjacent nodes.
The _______ layer of the TCP/IP protocol suite is responsible for node-to-node delivery of a frame between two adjacent nodes.
a. transport
b. network
c. data-link
d. session
Answer: c
The _______ layer of the TCP/IP protocol suite transmits a bit stream over a physical medium.
The _______ layer of the TCP/IP protocol suite transmits a bit stream over a physical medium.
a. physical
b. data-link
c. network
d. transport
Answer: a
The _______ layer of the TCP/IP protocol suite provides services for end users.
The _______ layer of the TCP/IP protocol suite provides services for end users.
a. data-link
b. transport
c. application
d. physical
Answer: c
The TCP/IP model has _______ layers.
The TCP/IP model has _______ layers.
a. five
b. six
c. seven
d. eight
Answer: a
To set (force to 1) all the bits of a bit pattern, make a mask of all 1s and then _______ the bit pattern and the mask.
To set (force to 1) all the bits of a bit pattern, make a mask of all 1s and then _______ the bit pattern and the mask.
a. AND
b. OR
c. XOR
d. NOT
Answer: b
To un-set (force to 0) all the bits of a bit pattern, make a mask of all 0s and then _______ the bit pattern and the mask.
To un-set (force to 0) all the bits of a bit pattern, make a mask of all 0s and then _______ the bit pattern and the mask.
a. AND
b. OR
c. XOR
d. NOT
Answer: a
To flip all the bits of a bit pattern, make a mask of all 1s and then _______ the bit pattern and the mask.
To flip all the bits of a bit pattern, make a mask of all 1s and then _______ the bit pattern and the mask.
a. AND
b. OR
c. XOR
d. NOT
Answer: c
We use a bit pattern called a _______ to modify another bit pattern.
We use a bit pattern called a _______ to modify another bit pattern.
a. mask
b. carry
c. float
d. byte
Answer: a
For the binary OR operation, only an input of _______ gives an output of 0.
For the binary OR operation, only an input of _______ gives an output of 0.
a. two 0s
b. two 1s
c. one 0 and one 1
d. two 2s
Answer: a
For the binary AND operation, only an input of _______ gives an output of 1.
For the binary AND operation, only an input of _______ gives an output of 1.
a. two 0s
b. two 1s
c. one 0 and one 1
d. two 2s
Answer: b
______ operator (s), if the input is two 1s, the output is 0.
______ operator (s), if the input is two 1s, the output is 0.
a. In only AND
b. In only OR
c. In only XOR
d. In AND, OR, or XOR
Answer: c
______ operator (s), if the input is two 0s, the output is 0.
______ operator (s), if the input is two 0s, the output is 0.
a. In only AND
b. In only OR
c. In only XOR
d. In AND, OR, or XOR
Answer: d
The unary _______ operator inverts its single input.
The unary _______ operator inverts its single input.
a. AND
b. OR
c. NOT
d. XOR
Answer: c
_____ operator (s) takes two inputs to produce one output.
_____ operator (s) takes two inputs to produce one output.
a. Only AND
b. Only OR
c. Only XOR
d. AND, OR, or XOR
Answer: d
If we are adding two numbers, one of which has an exponent value of 7 and the other an exponent value of 9, we need to shift the decimal point of the smaller number _______.
If we are adding two numbers, one of which has an exponent value of 7 and the other an exponent value of 9, we need to shift the decimal point of the smaller number _______.
a. one place to the left
b. one place to the right
c. two places to the left
d. two places to the right
Answer: c
If the exponent in Excess_127 is binary 10000101, the exponent in decimal is _______.
If the exponent in Excess_127 is binary 10000101, the exponent in decimal is _______.
a. 6
b. 7
c. 8
d. 9
Answer: a
In two's complement representation with a 4-bit allocation, we get _______ when we add 5 to 5.
In two's complement representation with a 4-bit allocation, we get _______ when we add 5 to 5.
a. -5
b. -6
c. -7
d. 10
Answer: b
In two's complement representation with a 4-bit allocation, we get _______ when we add 1 to 7.
In two's complement representation with a 4-bit allocation, we get _______ when we add 1 to 7.
a. 8
b. 1
c. -7
d. -8
Answer: d
For an 8-bit allocation, the largest decimal number that can be represented in two's complement form is _______.
For an 8-bit allocation, the largest decimal number that can be represented in two's complement form is _______.
a. 8
b. 127
c. 128
d. 256
Answer: b
For an 8-bit allocation, the smallest decimal number that can be represented in two's complement form is _______.
For an 8-bit allocation, the smallest decimal number that can be represented in two's complement form is _______.
a. -8
b. -127
c. -128
d. -256
Answer: c
In two's complement addition, if there is a final carry after the left most column addition, _______.
In two's complement addition, if there is a final carry after the left most column addition, _______.
a. add it to the right most column
b. add it to the left most column
c. discard it
d. increase the bit length
Answer: c
The _______ method of integer representation is the most common method for storing integers in computer memory.
The _______ method of integer representation is the most common method for storing integers in computer memory.
a. sign-and-magnitude
b. one's complement
c. two's complement
d. unsigned integers
Answer: c
______ is a logical bit operator.
______ is a logical bit operator.
a. The exclusive OR
b. The unary NOT
c. The binary AND
d. exclusive OR, unary NOT, or binary AND
Answer: d
_______ is an arithmetic operation.
_______ is an arithmetic operation.
a. The exclusive OR
b. The unary NOT
c. Subtraction
d. The binary AND
Answer: c
The combination of sign and mantissa of a real number in IEEE standard float-ing point format is stored as an integer in the ____________ representation.
The combination of sign and mantissa of a real number in IEEE standard float-ing point format is stored as an integer in the ____________ representation.
a. unsigned
b. sign-and-magnitude
c. two's complement
d. one's complement
Answer: b
The precision of the fractional part of a number stored in a computer is defined by the _______.
The precision of the fractional part of a number stored in a computer is defined by the _______.
a. sign
b. exponent
c. mantissa
d. last digit
Answer: c
When a fractional part is normalized, the computer stores the _______.
When a fractional part is normalized, the computer stores the _______.
a. only the sign
b. only the exponent
c. only the mantissa
d. the sign, exponent, and mantissa
Answer: d
In an Excess conversion, we _______ the number to be converted.
In an Excess conversion, we _______ the number to be converted.
a. add the bias number to
b. the bias number from
c. multiply the bias number by
d. divide
Answer: a
Which number representation method is often used to store the exponential value of a fractional part?
Which number representation method is often used to store the exponential value of a fractional part?
a. unsigned integers
b. two's complement
c. Excess
d. ten's complement
Answer: c
Assume a new Excess system uses 17 bits to represent the exponent section. What is he bias value in this system?
Assume a new Excess system uses 17 bits to represent the exponent section. What is he bias value in this system?
a. 17
b. 16
c. 65535
d. 65536
Answer: c
In the _______ graphic method of representing an image in a computer, re-scaling of the image creates a ragged or grainy image.
In the _______ graphic method of representing an image in a computer, re-scaling of the image creates a ragged or grainy image.
a. bitmap
b. vector
c. quantized
d. binary
Answer: a
In the _______ graphic method of representing an image in a computer, the image is decomposed into a combination of geometrical figures.
In the _______ graphic method of representing an image in a computer, the image is decomposed into a combination of geometrical figures.
a. bitmap
b. vector
c. quantized
d. binary
Answer: b
In the _______ graphic method of representing an image in a computer, each pixel is assigned a bit patterns.
In the _______ graphic method of representing an image in a computer, each pixel is assigned a bit patterns.
a. bitmap
b. vector
c. quantized
d. binary
Answer: a
An image can be represented in a computer using the _______ method.
An image can be represented in a computer using the _______ method.
a. bitmap graphic
b. vector graphic
c. only
d. either bitmap or vector graphic
Answer: d
A 32-bit code called _______ represents symbols in all languages.
A 32-bit code called _______ represents symbols in all languages.
a. ANSI
b. Unicode
c. EBCDIC
d. Extended ASCII
Answer: b
If the ASCII code for E is 1000101, then the ASCII code for e is _______. An-swer the question without consulting the ASCII table.
If the ASCII code for E is 1000101, then the ASCII code for e is _______. An-swer the question without consulting the ASCII table.
a. 1000110
b. 1000111
c. 0000110
d. 1100101
Answer: d
How many symbols can be represented by a bit pattern with ten bits?
How many symbols can be represented by a bit pattern with ten bits?
a. 128
b. 256
c. 512
d. 1024
Answer: d
In a set of 64 symbols, each symbol requires a bit pattern length of _______ bits.
In a set of 64 symbols, each symbol requires a bit pattern length of _______ bits.
a. 4
b. 5
c. 6
d. 7
Answer: c
A byte consists of _______ bits.
A byte consists of _______ bits.
a. 2
b. 4
c. 8
d. 16
Answer: C
Convert the hexadecimal number 1B to decimal:
Convert the hexadecimal number 1B to decimal:
a) 21
b) 23
c) 27
d) 29
Answer: C
Convert the binary number 101010 to hexadecimal:
Convert the binary number 101010 to hexadecimal:
a) 1A
b) 1B
c) 2A
d) 2B
Answer: C
Convert the binary number 1001 to decimal. The answer is:
Convert the binary number 1001 to decimal. The answer is:
a) 7
b) 9
c) 11
d) 15
Answer: B
Which of the following is equivalent to 24 in decimal?
Which of the following is equivalent to 24 in decimal?
a) (11000)2
b) (1A)16
c) (31)8
d) None of the others
Answer: A
Which of the following is equivalent to 12 in decimal?
Which of the following is equivalent to 12 in decimal?
a) (1110)2
b) (C)16
c) (15)8
d) None of the others
Answer: B
Which of the following representations is erroneous?
Which of the following representations is erroneous?
a) (110)2
b) (141)8
c) (EF)16
d) 22A
Answer: D
Which of the following representations is erroneous?
Which of the following representations is erroneous?
a) (111)2
b) (346)8
c) (EEG)16
d) 221
Answer: C
Which of the following representations is erroneous?
Which of the following representations is erroneous?
a) (10211)2
b) (342)8
c) (EEE)16
d) 145
Answer: A
Which of the following representations is erroneous?
Which of the following representations is erroneous?
a) (10111)2
b) (349)8
c) (3AB)16
d) 256
Answer: B
When converting a binary fraction to decimal, we repeatedly ____.
When converting a binary fraction to decimal, we repeatedly ____.
a) divide
b) multiply
c) add to
d) subtract from
Answer: B
When converting a decimal integer to base b, we repeatedly _____
When converting a decimal integer to base b, we repeatedly _____
a) divide
b) multiply
c) add to
d) subtract from
Answer: A
The base of the hexadecimal number system is ____.
The base of the hexadecimal number system is ____.
a) 2
b) 8
c) 10
d) 16
Answer: D
The base of the octal number system is ____.
The base of the octal number system is ____.
a) 2
b) 8
c) 10
d) 16
Answer: B
The base of the binary number system is ____.
The base of the binary number system is ____.
a) 2
b) 8
c) 10
d) 16
Answer: A
The base of the decimal number system is ____.
The base of the decimal number system is ____.
a) 2
b) 8
c) 10
d) 16
Answer: C
_____ separated the programming task from computer operation tasks.
_____ separated the programming task from computer operation tasks.
a. Algorithms
b. Data processors
c. High-level programming languages
d. Operating systems
Answer: C
The first computing machine to use the idea of storage and programming was called _______.
The first computing machine to use the idea of storage and programming was called _______.
a. the Madeline
b. EDVAC
c. the Babbage machine
d. the Jacquard loom
Answer: D
One of the first computers based on the von Neumann model was called _______.
One of the first computers based on the von Neumann model was called _______.
a. Pascal
b. Pascaline
c. ABC
d. EDVAC
Answer: D
The first electronic special-purpose computer was called _______.
The first electronic special-purpose computer was called _______.
a. Pascal
b. Pascaline
c. ABC
d. ENIAC
Answer: C
_____ is the design and writing of a program in structured form.
_____ is the design and writing of a program in structured form.
a. Software engineering
b. Hardware engineering
c. Algorithm development
d. Instructional architecture
Answer: A
______ is a set of instructions in a computer language that tells the computer what to do with data.
______ is a set of instructions in a computer language that tells the computer what to do with data.
a. An operating system
b. An algorithm
c. A data processor
d. A program
Answer: D
A 17th-century computing machine that could perform addition and subtraction was the _______.
A 17th-century computing machine that could perform addition and subtraction was the _______.
a. Pascaline
b. Jacquard loom
c. Analytical Engine
d. Babbage machine
Answer: A
FORTRAN and COBOL are examples of _______.
FORTRAN and COBOL are examples of _______.
a. hardware
b. operating systems
c. computer languages
d. algorithms
Answer: C
A step-by-step solution to a problem is called _______.
A step-by-step solution to a problem is called _______.
a. hardware
b. an operating system
c. a computer language
d. an algorithm
Answer: D
According to the von Neumann model, _______ are stored in memory.
According to the von Neumann model, _______ are stored in memory.
a. only data
b. only programs
c. data and programs
d. neither data nor programs
Answer: C
In a computer, the _______ subsystem serves as a manager of the other subsys-tems.
In a computer, the _______ subsystem serves as a manager of the other subsys-tems.
a. ALU
b. input/output
c. memory
d. control unit
Answer: D
In a computer, the _______ subsystem accepts data and programs and sends pro-cessing results to output devices.
In a computer, the _______ subsystem accepts data and programs and sends pro-cessing results to output devices.
a. ALU
b. input/output
c. memory
d. control unit
Answer: B
In a computer, the _______ subsystem performs calculations and logical opera-tions.
In a computer, the _______ subsystem performs calculations and logical opera-tions.
a. ALU
b. input/output
c. memory
d. control unit
Answer: A
In a computer, the _______ subsystem stores data and programs.
In a computer, the _______ subsystem stores data and programs.
a. ALU
b. input/output
c. memory
d. control unit
Answer: C
The _______ model is the basis for today's computers.
The _______ model is the basis for today's computers.
a. Leibnitz
b. von Neumann
c. Pascal
d. Charles Babbage
Answer: B
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