IT 105 TEST QUESTIONS & ANSWERS
If data register "DX" contains the binary value (0000101111001101)2, what value does
DH have? DH is the high byte of a DX register in x86-compatible microprocessors.
a. 110011012
b. 000010112
c. 000011112
d. 000010102 - Answer -B. 000010112
In 32-bit system , the top 16-bits are used to select a RAM segment, and the lower 16
bits are used to select a RAM cell in the selected segment.
True
False - Answer -True
Hardware interrupts are used by devices to communicate that they require attention
from the operating system.
True
False - Answer -True
1010101000101001(2) can be described by the binary grouping below:
a.Nibble
b.Byte
c.Word
d.Double Word - Answer -C. Word
In 32-bit computer, data is 16 bits.
True
False - Answer -False
In 32-bit Windows system, each RAM segment is 64KBytes because 16 bits is required
to reference each RAM cell within a RAM segment.
True
False - Answer -True
Assembly language is independent of the instruction set and the architecture of the
processor.
True
False - Answer -False
which statement is True?
, a.Purpose of segment register is to identify which ROM segment is currently being used
by the current program.
b.To speed up the processor operations, the processor includes some internal memory
locations, called registers.
c.The speed of accessing data in the main memory in faster than accessing L1-Cache.
d.The color light channels are made up of Red, Green, and Yellow. - Answer -B. To
speed up the processor operations, the processor includes some internal memory
locations, called registers.
What is HSL? Choose the best answer.
a.HSL is Hue, Saturation, Luminescence.
b.HSL is cylindrical-coordinate representations of points in an RGY color-model.
c.HSL is cylindrical-coordinate representations of points in an RGB color-model.
d.a and c - Answer -D. A & C
In LCD screen, the acronym LCD stands for Liquid Cathod Display.
True
False - Answer -False
In the context of "Memory Organization" which of the following lines is used for memory
addressing?
A.Chip select
B.Write enable
C.Read enable
D.Address lines - Answer -D.Address Lines
Which of the following component is used for data flow between CPU and memory?
A.bus
B.I/O device
C.address line
D. none of the above - Answer -A. Bus
Which of the following memories has the fastest access?
A.cpu register
B.cache
C.main memory
D.hard drive - Answer -CPU Register
Cache is a Dynamic RAM.
True
False - Answer -False
If data register "DX" contains the binary value (0000101111001101)2, what value does
DH have? DH is the high byte of a DX register in x86-compatible microprocessors.
a. 110011012
b. 000010112
c. 000011112
d. 000010102 - Answer -B. 000010112
In 32-bit system , the top 16-bits are used to select a RAM segment, and the lower 16
bits are used to select a RAM cell in the selected segment.
True
False - Answer -True
Hardware interrupts are used by devices to communicate that they require attention
from the operating system.
True
False - Answer -True
1010101000101001(2) can be described by the binary grouping below:
a.Nibble
b.Byte
c.Word
d.Double Word - Answer -C. Word
In 32-bit computer, data is 16 bits.
True
False - Answer -False
In 32-bit Windows system, each RAM segment is 64KBytes because 16 bits is required
to reference each RAM cell within a RAM segment.
True
False - Answer -True
Assembly language is independent of the instruction set and the architecture of the
processor.
True
False - Answer -False
which statement is True?
, a.Purpose of segment register is to identify which ROM segment is currently being used
by the current program.
b.To speed up the processor operations, the processor includes some internal memory
locations, called registers.
c.The speed of accessing data in the main memory in faster than accessing L1-Cache.
d.The color light channels are made up of Red, Green, and Yellow. - Answer -B. To
speed up the processor operations, the processor includes some internal memory
locations, called registers.
What is HSL? Choose the best answer.
a.HSL is Hue, Saturation, Luminescence.
b.HSL is cylindrical-coordinate representations of points in an RGY color-model.
c.HSL is cylindrical-coordinate representations of points in an RGB color-model.
d.a and c - Answer -D. A & C
In LCD screen, the acronym LCD stands for Liquid Cathod Display.
True
False - Answer -False
In the context of "Memory Organization" which of the following lines is used for memory
addressing?
A.Chip select
B.Write enable
C.Read enable
D.Address lines - Answer -D.Address Lines
Which of the following component is used for data flow between CPU and memory?
A.bus
B.I/O device
C.address line
D. none of the above - Answer -A. Bus
Which of the following memories has the fastest access?
A.cpu register
B.cache
C.main memory
D.hard drive - Answer -CPU Register
Cache is a Dynamic RAM.
True
False - Answer -False
