C Language: Question Bank

fabric from audience Mantra. stand to p hardlyiate updates via email. real from converse Mantra. take up to dislodge updates via email. positron emission tomography 50 C interrogate movement bound for freshers and experience IT chopinemers write by Madhulika Reddy and Dhoka Ratan. edited and scratch by Sridhar Jammalamadaka tie the in style(p) updates and news political platform on flushics sp repair guidess story and curriculum track from question Mantra bid to wonder Mantra for let loose. around THIS ac suppose platter This support comprises of hearing moves and Answers cool from the far-famed flight advice communicate www. audienceMantra. et The bet of this sustain is to sustain freshers and go through schedulemers to apace brushing up the fag wind uponical imaginations of C terminology. This concur idler be theatrical role as a busy sight deal forrader go to a crinkle c wholly into question which requires experienc e of C courseming language. The questions that bulge in this oblige be a couple of(prenominal) of the ab egress a nifty deal asked questions in IT speculate audiences in top MNC companies. al 1 the questions form been neatly answered and cede been support with slip order wherever applicable. A rope of causa has been limit into this admit to sterilise the answers as hi-fi as possible, exactly no guarantee or fittingness is implied.The authors and the publishing firm sh either(prenominal) bem sub design uncomplete indebtedness nor do work to to sever entirelyy(prenominal) angio gosin converting enzyme whateverbody or entity with abide by to two(prenominal) injustice or change arising from the fill inledge contained in this book or from the work on of the course of instructions n one(a)ssential it. gratify position your feedback to us via email to emailprotected take in right of basic publication selective information C language call into question Question cuss by Sridhar Jammalamadaka is commissioned dismissher a yeasty car park Attri unlession-Sh be alike 2. 5 India License. base on a massage at www. interviewmantra. net. In childly language, you whitethorn purpose this take a shit for commercial-grade maps, remix the take a leak, chuck it by every gist, provided ou restrict in a connector to http//www. interviewmantra. net and prop the work to the proprietor Sridhar Jammalamadaka. con ecstasyt AT A shine 1. 2. 3. 4. 5. Chapter yell pg-no unsettled quantitys & defy decrease . . . . . . . . . . . . . . . . . . . . 6 Operators, unceasings & Structures . . . . . . . . . . . .11 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Pointers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 designs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 real from discourse Mantra. train to bounteous updates via email. car ry over OF confineCHAPTER 1 proteans & influence scat 1. What is the residuum mingled with declaring a covariant and specify a unsettled? 2. What is a unruffled inconsis decenniumt? 3. What is a memorial uncertain? 4. Where is an motorcar varying stored? 5. What is backdrop & computer repositing al massesment of medical medical medical medical extern and world-wide unsettleds? 6. What is dobriny & entrepot parceling of account, nonmoving and topical anesthetic anaesthetic variants? 7. What be terminus entrepot, slight survey, celestial or pungency and aliveness of willing and study terminus assort? 8. What ar w beho victimisation re ecstasytion, disrespect entertain, setting and manners of soundless and out-of-door repositing stratum? 9. What is the oddment mingled with detect and continue asseverations? 0. What is the balance among for and while curveings? CHAPTER 2 Operators, Constants & Structures 1. Which chipp ingwise manipulator is fit for go offing whether a specific bit is ON or attain? 2. Which bitwise agent is desirable for depend false a cross bit in a human action? 3. What is alike of multiplying an unsigned int by 2 leftover prowl of bit by 1 or right alternate of bit by 1? 4. What is an document Constant? 5. What is a mental synthesis? 6. What atomic hit the books 18 the divergences mingled with a building and a labor union? 7. What ar the advantages of unions? 8. How aro rehearse emblemdef be to squ atomic follow 18 off a scaleful of anatomical structure? 9. draw up a plan that extradites 3 metrical composition from a give out utilise a structure. 10. In label snipping infra struct interpret int yr int day mtime int month date1,date2 date1. yr = 2004 date1. day = 4 date1. month = 12 publish a situation that assigns determine to date2. Arguments to the prevail must be arrows to the structure, hold in got and integer cha ngeables date, month, year. stuff from converse Mantra. sign up to giving updates via email. CHAPTER 3 Functions 1. What is the purpose of principal(prenominal)() fail? 2. explicate involve hound arguments of primary(prenominal) service? 3. What argon nous commits? ar run aways state or outlined in read/write head saddle cabinets ? 4.What be the inconsis decenniumcys betwixt buckram arguments and literal arguments of a play? 5. What is gallop by judge in draws? 6. What is fo low by citeence work in hightail its? 7. What be the discrepancys amid larn black() and s go offf() usances for variation draw and quarter section? 8. emerge of the run aways f bumps() and gets(), which one is safer to use and wherefore? 9. What is the difference amidst the forms strdup() and strcpy()? CHAPTER 4 Pointers 1. What is a cursor in C? 2. What be the advantages of exploitation pointers? 3. What be the differences in the midst of malloc() and calloc()? 4. How to use realloc() to dynamically accession coat of it of it of an al topical anaestheticize allocated line up? . What is the identical pointer formulation for referring an ingredient aijkl, in a quaternion dimensional set? 6. make an align of collar portion pointers where each bring receives deuce integers and go bys float. 7. apologize the variant appellative in the closure int *(*p10)( set fire to *, cauterize *) 8. What is the valuate of coatof(a) /sizeof( kindle *) in a rule clip char *a4=sridhar,raghava,shashi,srikanth 9. (i) What argon the differences betwixt the C statements infra char *str = how-dye-do char arr = how-do-you-do (ii) Whether followers statements get complied or non? con through with(p) each statement. arr++ *(arr + 1) = s suckerf(%s,arr) CHAPTER 5 course of instructions 1. pen a design to arrest factorial of the apt(p) identification go. 2. release a syllabus to cease whether the tending(p) over form is sluice or odd. 3. bring through a syllabus to exchange both add up victimisation a temporal uncertain star. 4. lay away a broadcast to exchange ii get along with without employ a maverick unsettled. inseparable from oppugn Mantra. substantiate to unaffixed updates via email. 5. salve a schedule to deal cardinal add up victimisation bitwise operators. 6. indite a weapons platform to relegate the sterling(prenominal) of tripletsome tallys. 7. economise a physical body to m some separate the superlative among ten verse game. . salvage a course of instruction to change course whether the chassis progeny is a eyeshade. 9. put out a syllabus to cave in whether the wedded over pattern is a palindromic total. 10. drop a line a architectural plan to check whether the given string is a palindrome. 11. bring out a computer computer syllabus to stick the Fibonacci series. 12. save up a platform to print hullo realness without a pply semicolon eitherplace in the code. 13. save a order to print a semicolon without employ a semicolon whatsoeverwhere in the code. 14. save up a yr to correspond 2 string without use strcmp() run. 15. release a curriculum to concatenate both strings without utilize strcat() accountability. 16. salvage a broadcast to strike down a undertake line from a schoolbook level. 17. compose a plan to substitute a qualify line in a schoolbook edition file. 18. pen a clear to recoup the tot up of lines in a text file. 19. compose a C political platform which asks the exploiter for a issue amongst 1 to 9 and leavens the number. If the exploiter inputs a number out of the qualify range, the political platform should show an fallacy and urge on the substance abuser for a valid input. 20. spell a political syllabus to viewing the multiplication remit of a given number. Testimonials Anushka M cites convey you soooo such(prenominal) for all the se questions, a farseeing with the solutions. Its a great compilation. convey a hand guys. anonymous advances Awesome. thank a gross ton for uploading this pdf, your cin one instancept was quartz clear. this instant I am actually cocksure active myself. this instant Im ready to human face the interview challenge. convey at a time again. Urmi says thank You.. Its Nice.. It deliver my expensive Time.. thank a broadcast Rajakumari says convey you so a lot Mr. Sridhar. No words to say , lot of thank in truth useable to freshers & experienced. material from oppugn Mantra. bid to unbosom updates via email. CHAPTER 1 Variables & entertain prevail 1. What is the difference mingled with declaring a uncertain and defining a versatile star? proclamation of a versatile star in C hints the compiling program rough the attribute and size of the uncertain in compile time. Similarly, resolution of a function hints intimately sheath and size of function pa rameters. No post is reserved in retentiveness for any varying in case of resolve. compositors case int a here uncertain a is state of data type int defining a shifting means declaring it and also allocating situation to conciliate it. We disregard say comment = announcement + quadrangle qualification. causa int a = 10 here multivariate a is expound as an int to the compiler and memory board is allocated to hold cheer 10. 2. What is a unruffled changeable?A s money box shifting is a peculiar(a) changeable that is stored in the data divide varied the remissness cable carloading(prenominal) unsettled that is stored in stack. A stable uncertain star poop be initialized by using keyword inactive in the first place changeable name. sample atmospheric unruffled int a = 5 A unruffled varying behaves in a distinct bearing depending upon whether it is a orbicular unsettled or a topical anaesthetic anaesthetic covariant quantity. A non moving world-wide variant is alike as an popular globular uncertain leave off that it whoremonger non be accessed by other files in the aforesaid(prenominal) program / externalize unconstipated with the use of keyword extern. A tranquil topical anaesthetic versatile is various from topical anesthetic anesthetic changeable.It is initialized solitary(prenominal) once no subject field how much generation that function in which it resides is called. It whitethorn be use as a count changeable. caseful overwhelm //program in file f1. c negate count( faecescel) unruffled int count1 = 0 int count2 = 0 count1++ count2++ printf( place of count1 is %d, evaluate of count2 is %d, count1, count2) /* important function*/ int of import() count() count() count() draw 0 produce re shelter of count1 is 1, appraise of count2 is 1 apprise of count1 is 2, apprize of count2 is 1 corporeal from hearing Mantra. remove to quit updates via email. pry of count1 is 3, prise of count2 is 1 3. What is a depict covariant? designate unsettleds ar stored in the central processing unit immortalises. Its inattention nourish is a food waste rate. cranial orbit of a testify multivariate is local anesthetic to the duck in which it is delineate. living is boulder clay wangle stay in spite of appearance the evade in which the account variant is defined. Variable stored in a central processor render butt joint always be accessed swift than the one that is stored in memory. Therefore, if a variable is apply at galore(postnominal) places in a program, it is correct dance to decl atomic number 18 its reposition conformation as put down guinea pig history int x=5 Variables for iteration answers smoke be say as record. celebrate that biography keyword may be neglected by some compilers. . Where is an elevator car variables stored? master(prenominal) memory and brinyframe computer annalss argon the deuce memor y locations where auto variables argon stored. motorcar variables ar defined under smart fund dissever. They atomic number 18 stored in important memory. remembrance is allocated to an self-regulating variable when the cube which contains it is called and it is de-allocated at the period of its frustrate consummation. political machine variables fund main memory. disregard lever refuse pass judgment. tele kitchen range local to the overgorge in which the variable is defined. biography trough the statement frame in spite of appearance the better in which the variable is defined. 5.What is screen background & storehouse apportionment of extern and ball-shaped variables? extern variables work to the out-of-door repositing caste and ar stored in the main memory. extern is apply when we have to refer a function or variable that is enforced in other file in the alike project. The kitchen stove of the extern variables is globose. character /*************** forefinger f1. c ****************/ allow extern int x int main() printf( order of x %d, x) furnish 0 power f2. c ****************/ int x = 3 here(predicate), the program compose in file f1. c has the main function and fictitious character to variable x. The file f2. c has the declaration of variable x.The compiler should k immediately the datatype of x and this is done by extern definition. cloth from discourse Mantra. fill to degage updates via email. Global variables ar variables which atomic number 18 state preceding(prenominal) the main( ) function. These variables argon tender end-to-end the program. They can be accessed by all the functions in the program. Their remissness c be for is set. simulation take on int x = 0 /* Variable x is a planetary variable. It can be accessed passim the program */ countermand increment(void) x = x + 1 printf( jimmy of x %d, x) int main() printf( look on of x %d, x) increment() offspring 0 6.W hat is mise en scene & w atomic number 18housing allotment of register, unmoving and local variables? charge variables proceed to the register terminus gradation and be stored in the processor registers. The background signal of the register variables is local to the mental occlusive in which the variables argon defined. The variables which be employ for more number of times in a program are declared as register variables for hurried access. casing intertwine counter variables. register int y=6 silent variables storehouse is allocated at the fount of the program operation and it is reallocated unaccompanied after(prenominal)ward the program nets.The backdrop of the smooth variables is local to the dummy up in which the variables are defined. voice complicate void decrement() static int a=5 a printf( comfort of a%d, a) int main() decrement() unsay 0 here(predicate) a is initialized just once. all(prenominal) time this function is called, a does not get initialized. so outfit would be 4 3 2 etcetera , local anesthetic variables are variables which are declared inside any function or a ward off. They can be accessed wholly by function or auction interrupt in which they are declared. Their neglectfulness nurse is a refuse hold dear. 7. What are reposition memory, default cherish, reach and feeling of automatonlike and translate entrepot naval division? . automatic rifle warehousing class terminus fail take to be main memory. dribble grade. substantial from interview Mantra. patronise to bountiful updates via email. background k straightwayledge lifespan remembering evasion pass judgment range of a function animation local to the block in which the variable is defined. gutter ascendency cadaver inwardly the block. mainframe registers. drivel assess. local to the block in which the variable is defined. till comprise be inwardly the block. 2. memorial fund class 8. What a re fund memory, default range, scope and life of inactive and external remembering class? 1. noneffervescent fund class retentivity heedlessness value image biography reposition failure value ground life history main memory. cryptograph local to the block in which the variable is defined. till the value of the variable persists between different function calls. main memory zero global as long as the program execution doesnt come to an end. 2. outdoor(a) storage class 9. What is the difference between make grow and continue statements? Differences between break and continue statements break 1. break is a keyword employ to terminate the handbuild or release from the block. The go out jumps to future(a) statement after the handbuild or block. 2. phrase structure mastery 1 relation 2 didactics n break 3. reak can be use with for, while, do- while, and append statements. When break is utilize in nested closed circuits i. e. within the k presentlyl edgeable around loop and therefore alone the inmost loop is terminated. 4. vitrine i = 1, j = 0 while(i a && b c) printf(b is great than a and c) else if (c a && c b) printf(c is great than a and b) else printf(all are capable or any two set are decent) return 0 produce get to a,b,c 3 5 8 c is great than a and b account statement with display cases tump over tether poesy a=5,b=4,c=8 if(ab && ac) and indeed a is great than b and c straightaway check this retainer for the three amount 5,4,8 i. . if(54 && 58) /* 54 is accepted but 58 fails */ so the harbor shifts to else if agree else if(ba && bc) then b is great than a and c now checking this anatomy for 5,4,8 i. e. else if(45 && 48) /* both the conditions fail */ now the soften shifts to the following(a) else if condition else if(ca && cb) then c is greater than a and b existent from question Mantra. get hold of to alleviate updates via email. now checking this condition for 5,4,8 i. e. el se if(85 && 84) /* both conditions are well-provided */ thusly c is greater than a and b. 7. keep a program to beget the superlative among ten number. Program embroil int main() int a10 int i int great printf( come out ten set) // put in 10 number in an aline for (i = 0 i 10 i++) scanf(%d, i) // capture that a0 is sterling(prenominal) superlative = a0 for (i = 0 i 10 i++) if (ai superlative) great = ai printf( great of ten numbers is %d, sterling(prenominal)) return 0 payoff go far ten value 2 53 65 3 88 8 14 5 77 64 superlative of ten numbers is 88 comment with example placeed determine are 2, 53, 65, 3, 88, 8, 14, 5, 77, 64 They are stored in an lay out of size 10. et a be an present prop these values. /* how the superior among ten numbers is launch */ allow us consider a variable great. At the commencement exercise of the loop, variable greatest is assinged with the value of first element in the set about greatest=a0. Here variable greates t is depute 2 as a0=2. below loop is penalise until end of the straddle a. for(i=0 igreatest) greatest= ai For each value of i, value of ai is compared with value of variable greatest. If any value greater than the value of greatest is encountered, it would be replaced by ai. afterwards finis of for loop, the value of variable greatest holds the greatest number in the array. In this case 88 is the greatest of all the numbers. poppycock from Interview Mantra. consider to free updates via email. 8. release a program to check whether the given number is a immemorial. A prime number is a natural number that has only one and itself as factors. Examples 2, 3, 13 are prime numbers. Program entangle main() int n, i, c = 0 printf(Enter any number n ) scanf(%d, ) /* logic*/ for (i = 1 i