ITE 221 Questions and Answers 2024| Exam Quizes
Combined
Light, radio frequencies and electricity travel through space or cables as a(n)
________________? ** Answ** Sine Wave
The _________________ of a sine wave is measured in degrees, with 0 degrees representing the
beginning of the wave's cycle and 360 degrees representing the end. ** Answ** Phase
A wave with encoded bits is called a (n) ___________________ wave because it transports bits
from one place to another. ** Answ** Carrier
A (n) ______________ signal wave uses the full range of a carrier wave characteristics to
encode continuous data values. ** Answ** Analog
The term ____________ refers to changes to the data signal caused by interaction with the
communication channel. ** Answ** Distortion
The FM method hold frequency constant while varying amplitude to represent data
True
False ** Answ** False
Phase is a wave characteristic that's fundamental the same as amplitude or frequency
True
False ** Answ** False
,Circuit switching is inefficient for most data transmission setting because few users require high
data transmission capacity continuously.
True
False ** Answ** True
A complete ____ of sine wave follows its full range from zero to positive peak, back to zero, to
negative peak, and then back to zero again.
a. Cycle
b. Wave
c. Crest
d. Trough ** Answ** a. Cycle
________ represents bit values as specific wave amplitudes.
a. Frequency modulation
b. Polar modulation
c. Amplitude modulation
d. Phase modulation ** Answ** c. Amplitude modulation
The ______________ transmits data between computer systems components. ** Answ**
data bus
The _________________ distributes electrical power to directly attached devices or their device
controllers. ** Answ** power bus
Storage and I/O devices are normally connected to the system bus or a subsidiary bus through a
(n) ** Answ** Device controller
, A special- purpose register called the ________________ always points to the next empty
address in the stack and is incremented or decremented automatically each time the stack is push
or popped. ** Answ** stack pointer
In data transfer rate and data transfer unit size are addressed in part by ________________ ,
which consumes substantial CPU resources. ** Answ** interrupt processing
Performances is improved if storage and IO devices can transmit data between with explicit CPU
involvement.
true
false ** Answ** false
The CPU communicates with a peripheral device by moving data to or from an I/O port's
dedicated bus.
true
false ** Answ** false
Data written to a cache during a wide operation isn't automatically removed from the cache after
its written underlying storage device.
true
false ** Answ** true
One way to limit wait states is to use SDRAM cache between the CPU and SRAM primary
storage.
true
false ** Answ** false
Combined
Light, radio frequencies and electricity travel through space or cables as a(n)
________________? ** Answ** Sine Wave
The _________________ of a sine wave is measured in degrees, with 0 degrees representing the
beginning of the wave's cycle and 360 degrees representing the end. ** Answ** Phase
A wave with encoded bits is called a (n) ___________________ wave because it transports bits
from one place to another. ** Answ** Carrier
A (n) ______________ signal wave uses the full range of a carrier wave characteristics to
encode continuous data values. ** Answ** Analog
The term ____________ refers to changes to the data signal caused by interaction with the
communication channel. ** Answ** Distortion
The FM method hold frequency constant while varying amplitude to represent data
True
False ** Answ** False
Phase is a wave characteristic that's fundamental the same as amplitude or frequency
True
False ** Answ** False
,Circuit switching is inefficient for most data transmission setting because few users require high
data transmission capacity continuously.
True
False ** Answ** True
A complete ____ of sine wave follows its full range from zero to positive peak, back to zero, to
negative peak, and then back to zero again.
a. Cycle
b. Wave
c. Crest
d. Trough ** Answ** a. Cycle
________ represents bit values as specific wave amplitudes.
a. Frequency modulation
b. Polar modulation
c. Amplitude modulation
d. Phase modulation ** Answ** c. Amplitude modulation
The ______________ transmits data between computer systems components. ** Answ**
data bus
The _________________ distributes electrical power to directly attached devices or their device
controllers. ** Answ** power bus
Storage and I/O devices are normally connected to the system bus or a subsidiary bus through a
(n) ** Answ** Device controller
, A special- purpose register called the ________________ always points to the next empty
address in the stack and is incremented or decremented automatically each time the stack is push
or popped. ** Answ** stack pointer
In data transfer rate and data transfer unit size are addressed in part by ________________ ,
which consumes substantial CPU resources. ** Answ** interrupt processing
Performances is improved if storage and IO devices can transmit data between with explicit CPU
involvement.
true
false ** Answ** false
The CPU communicates with a peripheral device by moving data to or from an I/O port's
dedicated bus.
true
false ** Answ** false
Data written to a cache during a wide operation isn't automatically removed from the cache after
its written underlying storage device.
true
false ** Answ** true
One way to limit wait states is to use SDRAM cache between the CPU and SRAM primary
storage.
true
false ** Answ** false
