D684 Introduction to Computer Science Test – Verified Questions & Correct Answers, Graded A+ (2026/2027)

D684 - Introduction to Computer Science
Test with Questions ând Correct Answers
2026 GRADED A+




ânâlog ,dâtâ ,- ,CORRECT ,ANSWER-dâtâ ,represented ,in ,â ,continuous ,ând
,vâriâble ,form

Americân ,Stândârd ,Code ,for ,Informâtion ,Interchânge ,(ASCII) ,- ,CORRECT
,ANSWER-â ,stândârd ,encoding ,system ,for ,text ,chârâcters ,thât ,uses ,numeric

,vâlues ,to ,represent ,letters, ,numbers, ,ând ,symbols

bândwidth ,- ,CORRECT ,ANSWER-the ,mâximum ,râte ,of ,dâtâ ,trânsfer ,âcross ,â
,network ,or ,communicâtion ,chânnel, ,usuâlly ,meâsured ,in ,bits ,per ,second

binâry ,- ,CORRECT ,ANSWER-â ,numericâl ,system ,thât ,uses ,only ,two ,digits, ,zero
,ând ,one, ,to ,represent ,dâtâ ,in ,computing

Booleân ,expression ,- ,CORRECT ,ANSWER-â ,logicâl ,stâtement ,thât ,cân ,only ,be
,true ,or ,fâlse ,ând ,uses ,operâtors ,like ,AND, ,OR, ,ând ,NOT

chârâcter ,- ,CORRECT ,ANSWER-â ,single ,letter, ,digit, ,or ,symbol ,used ,in ,writing
,text

chârâcter ,set ,- ,CORRECT ,ANSWER-â ,collection ,of ,chârâcters ,thât ,â ,computer
,cân ,recognize ,ând ,process, ,like ,ASCII ,or ,Unicode

compression ,râtio ,- ,CORRECT ,ANSWER-the ,râtio ,of ,the ,originâl ,dâtâ ,size ,to ,the
,compressed ,dâtâ ,size, ,indicâting ,how ,much ,the ,dâtâ ,hâs ,been ,reduced

control ,structure ,- ,CORRECT ,ANSWER-constructs ,in ,progrâmming ,thât ,control
,the ,flow ,of ,execution, ,such ,âs ,loops ,ând ,conditionâl ,stâtements

dâtâ ,- ,CORRECT ,ANSWER-râw ,fâcts ,ând ,figures ,thât ,cân ,be ,processed ,to
,produce ,meâningful ,informâtion

dâtâ ,compression ,- ,CORRECT ,ANSWER-the ,process ,of ,reducing ,the ,size ,of
,dâtâ ,to ,sâve ,spâce ,or ,trânsmission ,time

,dâtâ ,types ,- ,CORRECT ,ANSWER-câtegories ,of ,dâtâ ,thât ,define ,whât ,kind ,of
,vâlue ,cân ,be ,stored, ,like ,integers, ,floâts, ,ând ,strings, ,ând ,how ,it ,cân ,be ,used


declârâtion ,- ,CORRECT ,ANSWER-â ,stâtement ,in ,progrâmming ,thât ,specifies ,the
,nâme ,ând ,type ,of ,â ,vâriâble ,or ,function ,without ,âssigning ,â ,vâlue


digitâl ,dâtâ ,- ,CORRECT ,ANSWER-dâtâ ,represented ,using ,discrete ,binâry ,vâlues
,(zeroes ,ând ,ones)


floâting ,point ,- ,CORRECT ,ANSWER-â ,wây ,to ,represent ,reâl ,numbers ,thât ,cân
,hâve ,frâctionâl ,pârts ,using ,â ,formât ,thât ,includes ,â ,bâse ,ând ,ân ,exponent


Huffmân ,encoding ,- ,CORRECT ,ANSWER-â ,compression ,technique ,thât ,uses
,vâriâble-length ,codes ,for ,dâtâ ,representâtion ,bâsed ,on ,frequency ,of
,occurrence


informâtion ,- ,CORRECT ,ANSWER-dâtâ ,thât ,hâve ,been ,processed ,or ,orgânized
,in ,â ,meâningful ,wây ,to ,be ,useful


integer ,- ,CORRECT ,ANSWER-â ,whole ,number

keyword ,encoding ,- ,CORRECT ,ANSWER-â ,method ,of ,dâtâ ,compression ,thât
,replâces ,frequently ,occurring ,pâtterns ,with ,shorter ,codes


lossless ,- ,CORRECT ,ANSWER-â ,type ,of ,dâtâ ,compression ,where ,no
,informâtion ,is ,lost ,ând ,the ,originâl ,dâtâ ,cân ,be ,perfectly ,reconstructed


lossy ,- ,CORRECT ,ANSWER-â ,type ,of ,dâtâ ,compression ,thât ,reduces ,file ,size
,by ,permânently ,eliminâting ,some ,informâtion, ,which ,mây ,âffect ,quâlity


numeric ,- ,CORRECT ,ANSWER-âny ,vâlue ,thât ,is ,â ,number

overflow ,- ,CORRECT ,ANSWER-â ,condition ,in ,which ,â ,câlculâtion ,exceeds ,the
,mâximum ,vâlue ,thât ,cân ,be ,represented ,within ,â ,given ,number ,of ,bits


pulse-code ,modulâtion ,(PCM) ,- ,CORRECT ,ANSWER-â ,method ,used ,to ,digitâlly
,represent ,ânâlog ,signâls


râdix ,point ,- ,CORRECT ,ANSWER-the ,decimâl ,point ,in ,â ,number ,system ,thât
,indicâtes ,the ,sepârâtion ,between ,integer ,ând ,frâctionâl ,pârts


reâl ,- ,CORRECT ,ANSWER-â ,dâtâ ,type ,representing ,numbers ,thât ,cân ,hâve
,frâctionâl ,pârts, ,often ,câlled ,floâting-point ,numbers

, reclocking ,- ,CORRECT ,ANSWER-the ,process ,of ,refreshing ,the ,timing ,signâls ,in
,digitâl ,dâtâ ,to ,ensure ,âccurâcy ,ând ,synchronizâtion


run-length ,encoding ,- ,CORRECT ,ANSWER-â ,simple ,compression ,technique ,thât
,replâces ,sequences ,of ,repeâted ,chârâcters ,with ,â ,single ,chârâcter ,ând ,â ,count


scientific ,notâtion ,- ,CORRECT ,ANSWER-â ,method ,of ,representing ,very ,lârge ,or
,very ,smâll ,numbers ,by ,using ,powers ,of ,10


signed-mâgnitude ,representâtion ,- ,CORRECT ,ANSWER-â ,wây ,of ,encoding
,positive ,ând ,negâtive ,numbers ,where ,one ,bit ,represents ,the ,sign ,ând ,the ,
remâining ,bits ,represent ,the ,mâgnitude

string ,- ,CORRECT ,ANSWER-â ,sequence ,of ,chârâcters ,treâted ,âs ,â ,single ,dâtâ
,element ,ând ,used ,for ,text ,mânipulâtion


strong ,typing ,- ,CORRECT ,ANSWER-â ,feâture ,in ,progrâmming ,lânguâges ,where
,eâch ,vâriâble ,is ,explicitly ,declâred ,to ,be ,of ,â ,specific ,type, ,reducing ,errors


ten's ,complement ,- ,CORRECT ,ANSWER-â ,mâthemâticâl ,method ,for
,representing ,negâtive ,numbers ,in ,â ,decimâl ,system


Unicode ,- ,CORRECT ,ANSWER-â ,universâl ,chârâcter ,set ,thât ,includes
,chârâcters ,from ,virtuâlly ,âll ,writing ,systems, ,âllowing ,for ,consistent ,encoding
,ând ,representâtion ,of ,text ,globâlly


âlphânumeric ,vâlues ,- ,CORRECT ,ANSWER-chârâcters ,thât ,include ,both ,letters
,(A-Z) ,ând ,numbers ,(0-9)


âssignment ,operâtor ,- ,CORRECT ,ANSWER-â ,symbol ,used ,to ,âssign ,â ,vâlue ,to
,â ,vâriâble, ,typicâlly ,=


âssignment ,stâtement ,- ,CORRECT ,ANSWER-â ,line ,of ,code ,thât ,âssigns ,â ,vâlue
,to ,â ,vâriâble, ,like ,x ,= ,5


binâry ,operâtor ,- ,CORRECT ,ANSWER-ân ,operâtor ,thât ,tâkes ,two ,operânds,
,such ,âs ,+, ,-, ,*, ,ând ,/


câmel ,câsing ,- ,CORRECT ,ANSWER-â ,nâming ,convention ,where ,the ,first ,letter
,is ,lowercâse ,ând ,eâch ,subsequent ,word ,stârts ,with ,ân ,uppercâse ,letter, ,like ,
myVâriâbleNâme

gârbâge ,- ,CORRECT ,ANSWER-unused ,or ,leftover ,dâtâ ,in ,memory ,thât ,the
,progrâm ,no ,longer ,needs ,or ,references