IT 105 GMU Midterm Review Exam
Questions With Correct Answers
Calculate the file size of an image in that comprises of 512x512 pixels with 6 bits assigned per
pixel in terms of MB. - answer✔✔0.1875 MB
Calculate the size of a video file in terms of GB if each frame comprises of 512x512 pixels with
6 bits assigned per pixel with a frame rate of 24 fps and lasts for 30 minutes. - answer✔✔7.91
GB
Which of the following is measured in terms of GHz? - answer✔✔Processor speed
Which of the following is classified as volatile memory? - answer✔✔RAM
Which component of the CPU is responsible for arithmetic and logical operations? -
answer✔✔ALU
Which component of the CPU is used to store frequently used instructions and data? -
answer✔✔Cache memory
What is the minimum standard sampling frequency that is used to digitize audio signals for CD-
quality music? - answer✔✔44,100 Hz
One example of a low-level programming language is which of the following? -
answer✔✔Assembly language
When a user launches a piece of software, such as from the hard disk, the instructions and data
that correspond to the software and reside in RAM are in the form of: - answer✔✔Machine
language
The length of the binary code that the camera generates for each pixel is called the: -
answer✔✔Bit depth
Calculate how many bits there are in a 4 KB digital audio file - answer✔✔32,768 bits
How many "adds" does it take the ALU to process a 64 bit number if the word length is 16? -
answer✔✔4
What are CPU cycles during instruction processing? List in the correct order. - answer✔✔Fetch,
decode, execute, write-back
An accumulator is a register in a computer processor that: - answer✔✔Is a temporary memory to
hold the result of arithmetic operations
A program counter is a register in a computer processor that: - answer✔✔Contains the address of
the instruction being executed at the current time.
Which of the following is a memory element that temporary holds a single unit or word of data?
- answer✔✔Registers
Which of the following indicates the amount of time between two pulses of an oscillator (1 and
0) and
measures the speed of the processor? - answer✔✔Clock cycle
Which of the following translates assembly language code to machine code? -
answer✔✔Assembler
Which of the following transforms high-level source code in a high-level programming language
into a low
When the control unit swings into action, which step comes first? - answer✔✔Fetch an
instruction
Which Processor Instruction Execution method simultaneous use of more than one processor
(multiple cores) to execute a program? - answer✔✔Parallel Processing
Which Processor Instruction Execution method processes data one instruction at a time,
completing one instruction before beginning another? - answer✔✔Serial processing
Which Processor Instruction Execution method allows a processor to begin executing an
instruction before completing the previous instruction? - answer✔✔Pipeline processing
Which CPU cache allows a microprocessor to access data the fastest? - answer✔✔Level 1 cache
(L1)
x86 processors use ____________. - answer✔✔CISC technology
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