IT-105 GMU MidTerm

1.Using the opcode table below, What is the binary machine language instruction for Multiply?

a. 1111 0100

b. 0110 0011

c. 1111 0110

d. 0010 1100

c. 1111 0110

2. When the processor has completed the instruction in M4, where is 9?

a. In M2 and the Register 2

b. In M1 and the Instruction Pointer

c. In M3 and the Accumulator

d. In M5 and the accumulator

d. In M5 and the accumulator

3. Calculate the file size of an image in that comprises of 512x512 pixels with 6 bits assigned per pixel in terms of MB?

a. 32 MB

b. 0.1875 MB

c. 54 MB

d.. 0.54 MB

e. 100 MB

b. 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?

a.. 32 GB

b. 0.1875 MB

c. 7.91 GB

d.. 700 GB

e. None of the above

c. 7.91 GB

5. Which of the following is measured in terms of GHz?

a. Number of CPUs

b. Data rate

c. Processor speed

d. All of the above

c. Processor speed

6. Which of the following is classified as volatile memory?

a. RAM

b. ROM

c. All of the above

d. None of the above

a. RAM

7. Which component of the CPU is responsible for arithmetic and logical operations?

a. Control unit

b. ALU

c. Cache memory

d. Both and b

e. All of the above

b. ALU

8. Which component of the CPU is used to store frequently used instructions and data?

a. Control unit

b. ALU

c. Cache memory

d. Both and b

e. All of the above

c. Cache memory

9. What is the minimum standard sampling frequency that is used to digitize audio signals for CD-quality music?

a. 2,000 Hz

b. 4,000 Hz

c. 8,000 Hz

d. 16,000 Hz

e. 44,100 Hz

e. 44,100 Hz

10. One example of a low-level programming language is which of the following?

a. Assembly language

b. Java

c. COBOL

d. C++

e. HTML

a. Assembly language

11. 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:

a. Machine language

b. Assembly language

c. High-level language

d. 5GL

e. BIOS

a. Machine language

12. The length of the binary code that the camera generates for each pixel is called the:

a. Bit depth

b. Number of Pixels

c. RAM

d. Filter

e. Memory

a. Bit depth

13. Calculate how many bits there are in a 4 KB digital audio file?

a. 4,000 bits

b. 32,000 bits

c. 32,768 bits

d. 4,096 bits

e. None of the above

c. 32,768 bits

14. How many "adds" does it take the ALU to process a 64 bit number if the word length is 16?

a. 3

b. 4

c .1

d. 2

b. 4

In the Von Neumann Model, communication between the memory and processing unit consists of the Memory Address Register (MAR) and the Memory Data Register (MDR).

a. True

b. False

a. True

16. What are CPU cycles during instruction processing? List in the correct order.

a. Fetch, decode, execute, write-back

b. Decode, fetch, write-back, execute

c. Execute, fetch, decode, write-back

d. Wrote-back, fetch, execute, decode

a. Fetch, decode, execute, write-back

17. An accumulator is a register in a computer processor that:

a. Contains the address of the instruction being executed at the current time.

b. Is a temporary memory to hold the result of arithmetic operations

c. Contains an instruction loaded from RAM

d. None of the above

b. Is a temporary memory to hold the result of arithmetic operations

18. A program counter is a register in a computer processor that:

a. Contains the address of the instruction being executed at the current time.

b. Is a temporary memory to hold the result of arithmetic operations

c. Contains an instruction loaded from RAM

d. None of the above

a. Contains the address of the instruction being executed at the current time.

19. Which of the following is a memory element that temporary holds a single unit or word of data?

a. Arithmetic Logic Unit (ALU)

b. Control Unit

c. Registers

d. None of the Above

e. All of the Above

c. Registers

20. 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?

a. Control Unit

b. Clock cycle

c. Cache

d. None of the Above

e. All of the Above

b. Clock cycle

Which of the following translates assembly language code to machine code?

a. Assembler

b. compiler

c. Cache

d. None of the Above

e. All of the Above

a. Assembler

Which of the following transforms high-level source code in a high-level programming language into a low level object code (binary code)?

a. Assembler

b. Compiler

c. Cache

d. None of the Above

e. All of the Above

b. Compiler

When the control unit swings into action, which step comes first?

a.Perform arithmetic operations.

b.Load data into the ALU.

c.Fetch an instruction.

d.Execute the instruction.

c.Fetch an instruction.

Which Processor Instruction Execution method simultaneous use of more than one processor (multiple cores) to execute a program?

a. Serial processing

b. Pipeline processing

c. Parallel Processing

d. None of the Above

c. Parallel Processing

Which Processor Instruction Execution method processes data one instruction at a time, completing one instruction before beginning another?

a. Serial processing

b. Pipeline processing

c. Parallel Processing

d. None of the Above

e. All of the Above

a. Serial processing

Which Processor Instruction Execution method allows a processor to begin executing an instruction before completing the previous instruction?

a. Serial processing

b. Pipeline processing

c. Parallel Processing

d. None of the Above

e. All of the Above

b. Pipeline processing

Which CPU cache allows a microprocessor to access data the fastest?

a. Level 1 cache (L1)

b. Level 2 cache (L2)

c. Level 3 cache (L3)

d. None of the Above

e. All of the Above

a. Level 1 cache (L1)

x86 processors use ____________.

a. RISC technology

b. CISC technology

c. ARM technology

d. None of the Above

e. All of the Above

b. CISC technology

To represent the color gray in RGB system, the decimal value for green is 128. What are the equivalent hexadecimal and binary values for green?

a. 80 and 10000000

b. 81 and 10100001

c. 82 and 10000010

d. 128 and 1000100

a. 80 and 10000000

A characteristic of bitmap graphics is that they are resolution dependent, so that reducing the resolution also reduces the image quality.

a. True

b. False

a. True

Vector graphics require more storage space than bitmaps, but vectors can be enlarged without becoming pixelated.

a. True

b. False

a. True

What is the storage needed to store one video frame with 2080x1040 resolution in True-color format?

2,080 x 1,040 x 24 = 51916800

a. 415334400 bits

b. 2163200 bits

c. 6489600 bits

d. 51916800 bits

d. 51916800 bits

Based on the diagram below for Run Length Encoding (RLE), what is the repeat count for the Pixel value of 22?

a. 9

b. 12

c. 30

d. 6

e. 8

d. 6

Which step in the research process tells the reader what other researchers have discovered about the topic of the paper, or tells the reader about other relevant research?

a. Formulating the hypothesis

b. Literature Review

c. Data Collection

d. Data Analysis

e. Results

b. Literature Review

Which step in the research process is a tentative assumption made in order to draw out and test its logical or empirical consequences to a scientific question?

a. Formulating the hypothesis

b. Literature Review

c. Data Collection

d. Data Analysis

e. Results

a. Formulating the hypothesis

Convert the hexadecimal number F13C to decimal

A. 61677

B. 61568

C. 61756

D. 61765

C. 61756

Octal is know as base_______

A. 16

B. 10

C. 2

D. 8

D. 8

Convert the octal number 250 to decimal

A. 168

B. 178

C. 167

D. 177

A. 168

Gates are also know as:

A. RAM

B. Combinational logic elements

C. Semiconductors

D. All of the above

B. Combinational logic elements

Which of the following represents an AND gate:

A. A+B

B. A*B

C. A/B

D. A-B

B. A*B

A NOT gate is also know as an (a):

A. Inverter

B. Complimenter

C. Neither A or B

D. Both A and B

D. Both A and B

A decoder is a piece of hardware that transforms ______________ into control signals

A. Operands

B. Opcodes

C. Digits

D. All of the above

B. Opcodes

A MUX is another ______________________ logic circuit.

A. Simple

B. Combinational

C. Binary

D. Complex

B. Combinational

The ________________is an example of a simple, functional digital circuit built from two logic gates.

A. Full Adder

a. Half adder

b. Two-bit adder

c. All of the above

a. Half adder

______________is common in programming languages

A. Octal

B. Hexadecimal

C. Python

D. All of the above

B. Hexadecimal

_________________ refers to the number of times per second that a sound is measured during the recording process.

A. Bit rate

B. Sampling rate

C. Frame rate

D. Bit rate

B.Sampling rate

______________________is the process by which machines produce sound that resembles spoken words (Digital to Analog conversion).

A. Speech recognition

B. Speech synthesis

C. Speech sampling

D. All of the above

B.Speech synthesis

Graphics stored in True Color format require _____ bits for each pixel.

A. 36

B. 16

C. 24

D. 48

C.24

___________________is a representation of a 3-D object using separate lines, which resemble wire, to create a model.

A. Scale

B. Wireframe

C. Vector image

D. Bitmap image

B.Wireframe

The number of frames that are displayed per second is the ____________

A. Image rate

B. Bit rate

C. Frame rate

D. Pixel rate

C. Frame rate

An ______________________is a contrasting scanning technique that produces an image by drawing every other line, then going back and filling in the in-between lines.

A. Progressive scan

B. Interlaced scan

C. Resolutions scan

D. Bitmap scan

B. Interlaced scan

________________provides a way to compress data and reconstitute it into its original state; uncompressed data stays exactly the same as the original data. Reduces the file size, not the quality

A. File Zipping

B. Lossy compression

C. Lossless compression

D. Encryption

C. Lossless compression

Audio compression is usually _____________.

A. Lossy

B. Lossless

C. Audio is not compressed

D. None of the above

A. Lossy

_________________is a type of lossless compression that replaces a series of similarly colored pixels with a binary code that indicates the number of pixels and their colors

A. Resolution-length encoding

B. Run-length encoding

C. Raster-length encoding

D. None of the above

B. Run-length encoding

___________ stores only the pixels that change color from one frame to the next

A. Image compression

B. Interframe compression

C. Neither A or B

D. Both A and B

B. Interframe compression

Gigabyte is:

a. 210 bytes

b. 220 bytes

c. 230 bytes d. 215 bytes

c. 230 bytes

First task to digitize information is __________.

a. to reduce infinite number of measurements to a finite number b. to round of the speed values to the closet speed value available

c. assign a binary code to the rounded off values d. all of the above

a. to reduce infinite number of measurements to a finite number

What is the binary representation 132?

a. 11110000 b. 10000100

c. 10010000 d. none of the above

b. 10000100

What is decimal representation of 0110?

a. 1 b. 8

c. 7 d. 6

d. 6

What is the result of adding binary numbers -15 and +5 ?

a. 0000 b. 10110

c. 0010 d. 00010

b. 10110

What is the binary representation of -8 in 8-bit 2's complement form?

a. 11111000 b. 11111011

c. 11001111 d. 10111111

a. 11111000

Which numbering system is related to the following series of numbers?

0, 1, 2, 3, 4, 5, 6, 7, 10 , 11, 12, 13, 14, 15, 16, 17, 20, 21, 22, 23, 24, 25, 26, 27, 30

a. binary b. octal

c. decimal d. hex

b. octal

How many unique locations can be represented with 5 bits address?

a. 64 b. 5

c. 32 d. 10

c. 32

Convert 1110101010110001(2) into hexadecimal shorthand:

a. FAC1(16)

b. EAC1(16)

c. FAB1(16)

d. EAB1(16)

d. EAB1(16)

Which type of signal varies smoothly and continuously over time?

a. Digital signal

b. Analog signal

c. All of the above

d. None of the above

b. Analog signal

A group of eight bits is called a _______.

a. byte

b. megabit

c. binary

d. numeric data

a. byte

The term 'stored program' means that a series of instructions for a computing task can be loaded into a computer's memory.

a. True

b. False

a. True

What is the decimal representation of hexadecimal FF(base 16)?

a. 128

b. 256

c. 64

d. 255

d. 255

ASCII stands for:

a. American Standard Computer Interface Information

b. American Standard Code for Information Interchange

c. American Standard Code for Internet Interchange

d. Aluminum Sulfate Complex with Iridium Iodine

b. American Standard Code for Information Interchange

The overflow bit status if adding two negative numbers yields to a positive number is:

a. 1

b. 0

c. both

d. unknown

a. 1

The carry bit status two`s complement arithmetic operation 7-5= +2 is:

a. 1

b. 0

c. both

d. unknown

a. 1

How many different values can 3 bits represent?

a. 1

b. 8

c. 16

d. 256

b. 8

Which of the following statements defines a computer?

a) A programmable machine that inputs data and outputs processes

b) Any device capable of processing information to produce a desired result.

c) A programmable device capable of accepting input, processing input, and producing output

d) b and c

d) b and c

Which of the following functions is supported by a computer?

a) Accepting data and Processing data

b) Producing output

c) Storing results

d) All of the above

d. All of the above

What is the decimal equivalent for binary sequence 10001001 ?

a. 194

b. 128

c. 137

d. 136

c. 137