Computer Science Topics
Postgraduate level — Computer Science
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quiz Questions
Q141
In basic computer numeric representation, what is the exact decimal equivalent of the binary sequence 0110?
4
5
6
8
Explanation
To convert the binary code 0110 to its decimal equivalent, calculate the positional base-2 tracking columns: (0 × 2³) + (1 × 2²) + (1 × 2¹) + (0 × 2⁰) = 0 + 4 + 2 + 0 = 6.
Q142
Which type of computer software utility operates natively as an optimization program by reorganizing files on a hard disk drive so that data bits are grouped in contiguous sectors?
Disk Defragmenter
Device Driver
Text Editor
Assembler script
Explanation
A Disk Defragmenter is a system utility tool engineered to rearrange fragmented files on a hard drive into contiguous blocks, which significantly reduces the mechanical movement of read/write heads and optimizes system access speeds.
Q143
Which basic computer hardware device uses a specialized matrix of fine pins hitting an ink-soaked fabric ribbon against paper to generate alphanumeric symbols?
Laser Printer
Dot Matrix Printer
Inkjet Printer
Thermal Plotter
Explanation
A Dot Matrix Printer is an impact printer that characteristically patterns text and graphics by using a print head featuring a grid of tiny pins that strike an ink ribbon against paper units.
Q144
What critical operational sequence is performed during a 'Cold Boot' routine that is cleanly bypassed during a standard 'Warm Boot' command?
The loading of primary OS kernel buffers
The Power-On Self-Test (POST) diagnostic routing
The memory mapping allocation of virtual swap zones
The serialization of compiler bytecode strings
Explanation
During a Cold Boot (starting a computer from a completely powered-off state), the system firmware natively runs the Power-On Self-Test (POST) to diagnose baseline hardware parameters. A Warm Boot bypasses POST since the electrical power stays uninterrupted.
Q145
Which unit parameter corresponds precisely to exactly 1024 Gigabytes (GB) in standardized data metrics frameworks?
1 Megabyte (MB)
1 Terabyte (TB)
1 Petabyte (PB)
1 Exabyte (EB)
Explanation
In binary computer data tracking frameworks following the base-2 scale, 1 Terabyte (TB) is mathematically equivalent to exactly 1024 Gigabytes (GB).
Q146
In basic computer numeric representation frameworks, what is the exact decimal equivalent value represented by the binary code sequence 0101?
3
5
7
9
Explanation
To convert the binary code 0101 to its decimal equivalent, calculate the positional base-2 tracking columns: (0 × 2³) + (1 × 2²) + (0 × 2¹) + (1 × 2⁰) = 0 + 4 + 0 + 1 = 5.
Q147
Which type of system utility software operates natively as an optimization program by scanning secondary storage setups to securely locate and delete temporary browser history, cached assets, and orphan log registries?
Disk Defragmenter
Disk Cleanup / System Cleaner
Device Driver compiler
Linker asset assembly
Explanation
A Disk Cleanup utility (or system cleaner) is explicitly engineered to scan local drives, identifying and erasing redundant data strings like temp files and caching overheads to optimize available storage tracking space safely.
Q148
Which basic hardware printing peripheral uses a specialized non-impact process where electrostatic charges systematically guide fine dry ink toner particles to map digitized profiles onto paper layers?
Dot Matrix impact printer
Laser Printer
Daisy Wheel striker unit
Piezoelectric inkjet nozzle roll
Explanation
A Laser Printer is a high-speed non-impact printer that characteristically utilizes a focused laser beam combined with an electrostatic drum assembly to bind dry toner dust particles precisely onto target document sheets.
Q149
What is the primary technical parameter that explains why Static RAM (SRAM) configurations exhibit significantly faster memory access loops compared to standard Dynamic RAM (DRAM)?
SRAM relies on microscopic vacuum relays operating inside parallel data grids natively
SRAM implements transistor flip-flops that hold binary states continuously without requiring dynamic refresh cycles
SRAM maps logic states exclusively via laser-etched non-volatile optical matrix pipelines
SRAM completely bypasses the internal address bus tracking lines managed by the CPU core
Explanation
SRAM architecture implements transistor-based flip-flop structures to continuously maintain bit logic states as long as electric power remains constant, bypassing the leaky capacitor circuits used in DRAM that mandate slow, continuous dynamic refresh cycles.
Q150
Which unit parameter corresponds precisely to exactly 1024 Kilobytes (KB) inside standardized binary processing data metrics frameworks?
1 Byte frame
1 Megabyte (MB)
1 Gigabyte (GB)
1 Terabyte (TB)
Explanation
Following base-2 binary computing configurations natively deployed across standard computer hardware frameworks, exactly 1024 Kilobytes bundle together to equal exactly 1 Megabyte (MB).