IT 105 GMU Midterm Review

Calculate the file size of an image in that comprises of 512x512 pixels with 6 bits assigned per pixel in terms of MB. - Correct 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. - Correct Answer-7.91 GB Which of the following is measured in terms of GHz? - Correct Answer-Processor speed Which of the following is classified as volatile memory? - Correct Answer-RAM Which component of the CPU is responsible for arithmetic and logical operations? - Correct Answer-ALU Which component of the CPU is used to store frequently used instructions and data? - Correct Answer-Cache memory What is the minimum standard sampling frequency that is used to digitize audio signals for CD-quality music? - Correct Answer-44,100 Hz One example of a low-level programming language is which of the following? - Correct 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: - Correct Answer-Machine language The length of the binary code that the camera generates for each pixel is called the: - Correct Answer-Bit depth Calculate how many bits there are in a 4 KB digital audio file - Correct Answer-32,768 bits How many "adds" does it take the ALU to process a 64 bit number if the word length is 16? - Correct Answer-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). - Correct Answer-True What are CPU cycles during instruction processing? List in the correct order. - Correct Answer-Fetch, decode, execute, write-back An accumulator is a register in a computer processor that: - Correct Answer-Is a temporary memory to hold the result of arithmetic operations A program counter is a register in a computer processor that: - Correct 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? - Correct 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? - Correct Answer-Clock cycle Which of the following translates assembly language code to machine code? - Correct Answer-Assembler Which of the following transforms high-level source code in a high-level programming language into a low level object code (binary code)? - Correct Answer-Compiler When the control unit swings into action, which step comes first? - Correct Answer-Fetch an instruction Which Processor Instruction Execution method simultaneous use of more than one processor (multiple cores) to execute a program? - Correct Answer-Parallel Processing Which Processor Instruction Execution method processes data one instruction at a time, completing one instruction before beginning another? - Correct Answer-Serial processing Which Processor Instruction Execution method allows a processor to begin executing an instruction before completing the previous instruction? - Correct Answer-Pipeline processing Which CPU cache allows a microprocessor to access data the fastest? - Correct Answer-Level 1 cache (L1) x86 processors use ____________. - Correct Answer-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? - Correct Answer-80 and A characteristic of bitmap graphics is that they are resolution dependent, so that reducing the resolution also reduces the image quality. - Correct Answer-True Vector graphics require more storage space than bitmaps, but vectors can be enlarged without becoming pixelated. - Correct Answer-True What is the storage needed to store one video frame with 2080x1040 resolution in True-color format? - Correct Answer- bits 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? - Correct Answer-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? - Correct Answer-Formulating the hypothesis Convert the hexadecimal number F13C to decimal - Correct Answer-61756 Octal is know as base_______ - Correct Answer-8 Convert the octal number 250 to decimal - Correct Answer-168 Gates are also know as: - Correct Answer-Combinational logic elements Which of the following represents an AND gate: - Correct Answer-A*B