Introduction to Computing MCQs with Answers
Practice important Introduction to Computing MCQs with answers and explanations.
Chapter: 42
Q641:
What must be coordinated during DMA operations to avoid issues?
A. The amount of data to be stored
B. The speed of the CPU
C. The activity on the computer's bus
D. The external device’s compatibility
Correct Answer:
C
Chapter: 43
Q642:
What is the main difference between parallel and serial communication?
A. Parallel transfers data one bit at a time, serial transfers multiple bits at once
B. Serial transfers data one bit at a time, parallel transfers multiple bits at once
C. Parallel uses less complex architecture, serial uses more
D. Serial is faster than parallel
Correct Answer:
B
Chapter: 43
Q643:
What is a major advantage of parallel communication?
A. Requires less complex architecture
B. Transfers data one bit at a time
C. Has a slower data transfer rate
D. Requires simpler data paths
Correct Answer:
A
Chapter: 43
Q644:
Which communication method is typically slower but simpler?
A. Parallel communication
B. Serial communication
C. Ethernet communication
D. USB communication
Correct Answer:
B
Chapter: 43
Q645:
What is an example of a high-speed data transfer over short distances?
A. Ethernet
B. DSL
C. Fiber Optics
D. USB
Correct Answer:
D
Chapter: 43
Q646:
What technology is used for faster long-distance communication?
A. Modem
B. DSL
C. Fiber Optics
D. Coaxial cables
Correct Answer:
B
Chapter: 43
Q647:
What is the rate at which bits are transferred measured in?
A. Bits per minute
B. Bits per hour
C. Bits per second
D. Bits per day
Correct Answer:
C
Chapter: 43
Q648:
How does a USB compare to traditional voice lines?
A. USB is slower
B. Traditional voice lines are faster
C. USB provides several hundred Mbps
D. Traditional voice lines offer higher speeds
Correct Answer:
C
Chapter: 43
Q649:
How many kilobits (kbps) are equivalent to 1 kilobyte (KB) per second?
A. 8 kbps
B. 100 kbps
C. 1000 kbps
D. 8000 kbps
Correct Answer:
A
Chapter: 43
Q650:
Which of the following is used to convert bit patterns to audible tones?
A. DSL
B. Fiber Optics
C. Coaxial cables
D. Modem
Correct Answer:
D
Chapter: 43
Q651:
What is a common use of fiber optics and coaxial cables?
A. High-speed internet and television
B. Voice communication
C. Modem connection
D. Simple data transfer
Correct Answer:
A
Chapter: 43
Q652:
What is the typical data transfer rate of USB and FireWire?
A. Several hundred Mbps
B. Several thousand Mbps
C. Several million Mbps
D. Several billion Mbps
Correct Answer:
A
Chapter: 44
Q653:
What is the primary goal of improving a computer's performance?
A. Increasing execution speed
B. Improving the machine's throughput
C. Reducing the CPU's temperature
D. Minimizing memory usage
Correct Answer:
B
Chapter: 44
Q654:
What does pipelining in a CPU help to increase?
A. Execution speed
B. Throughput
C. Memory size
D. Disk space
Correct Answer:
B
Chapter: 44
Q655:
How does pipelining increase a computer’s throughput?
A. By allowing steps in the machine cycle to overlap
B. By increasing the CPU’s clock speed
C. By reducing the instruction size
D. By adding more memory
Correct Answer:
A
Chapter: 44
Q656:
In pipelining, what happens when a JUMP instruction is encountered?
A. All instructions in the pipe are executed
B. The CPU fetches new instructions as needed
C. The throughput is significantly increased
D. The instructions in the pipe are not the ones needed
Correct Answer:
D
Chapter: 44
Q657:
How long does it take for an electric pulse to travel 1 foot in a wire?
A. 1 nanosecond
B. 2 nanoseconds
C. 0.5 nanoseconds
D. 10 nanoseconds
Correct Answer:
B
Chapter: 44
Q658:
What is the effect of pipelining on the time required to fetch and execute individual instructions?
A. It reduces the time required
B. It keeps the time required the same
C. It increases the time required
D. It eliminates the need for fetching
Correct Answer:
B
Chapter: 44
Q659:
Which technique allows multiple instructions to be at different stages of processing simultaneously?
A. Parallel processing
B. Pipelining
C. Multitasking
D. Caching
Correct Answer:
B
Chapter: 44
Q660:
What can modern machine designs do beyond simple pipelining?
A. Fetch several instructions simultaneously and execute multiple instructions at once
B. Only fetch one instruction at a time
C. Execute instructions in a serial fashion
D. Use multiple processors for single instructions
Correct Answer:
A