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31st July 2014, 12:53 PM
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| Re: Inter Global Technologies Placement Papers
As you want to get Inter Global Technologies Placement Papers, so here I am given you on your request: 1. main() { int arr[]={ 1,2,3,4 }; int *ptr ;;;; ptr++ = arr; printf("%d,%d",ptr[2],arr[2]); return 0; } what is the output : a. compile time error :multiple termination statements for pointer b. lvalue required for ptr c. prints 3 3 d. printd 4 3 ans b: lvalue required for ptr; 2. main() { char s[10]; scanf ("%s",s); printf(s); } what is the output if input is abcd : a. prints abcd b. compiler error c. prints abcd and 6 junk characters d. printd s ans a: prints abcd. 3. main() { char c = 255; printf ("%d",c); return 0; } what is the output a. illegal character assignment b. prints -1 c. prints 2 d. prints 255 ans b: prints -1. 4. main() { int i; for (i=7;i<=0;i--) printf ("hello "); } what is the output a. prints hello 7 times b. prints hello 8 times c. prints hello once d. prints nothing ans b: prints nothing. 5. main() { printf( printf ("world") ); } a. prints world b. prints printf ("world") c. prints nothing d. compiler error ans d: compiler error. Computer Concepts 1. A c source code file can be a. compiled only b. interpreted only c. both compiled and interpreted d. nothing ans c : both compiled and interpreted 2. c programming approach is a. Top down b. bottom up c. both topdown and bottom up d. none of the above ans a:top down approach 3. The access time is less for a. hard disk b. cache c. registers d. main memory ans c:registers 4.resolving of external variables in a program is done at a.complie time b.run time c.link time 4.load time ans c: link time. 5. interrupts inform process about a. events external to process asynchronously b. events external to process synchronously c. both a and b d. events internal to a process ans a: events external to process asynchronously /* C question and answers All questions are tested in Turbo C compiler and have not been tested in gcc or (linux platform) */ 1) #include main() { scanf("%d"); printf(); } which of the following is correct? a)compilation error b)Run time error c)No output d)depends on the compiler ans : a 2) #include #define islower(c) ( a <=(c) && (c)<= z ) #define toupper(c) (islower(c)?(c)-( a - A )  c)) main() { char *p="i am fine"; while(*p) printf("%c",toupper(*p++)); } a)bcd b)AFE c)aFe d)BCd ans : b ( macro substitution 3 times) 3) #include main() { 200; printf("tricky problem"); } a)warning message b)compilation error c)run time error d)none of these ans : a 4)which is the null statement? a) ; b) {} c) ; d)all of these ans : a 5)what is the correct prototype of printf function ? a)printf(char *p,...); b)printf(const *char *p,...); c)printf(const char *p,...); d)printf(const *char p,...); ans : c /* questions on computer concepts */ 1)which of the following is not a system file? a).sys b).com c).ini d)none ans : d 2)A magnetic tape is equivalent to which of the following structure? a)Graphs b)trees c)Lists d)Dictionaries ans : c 3)For a linked list implementation which searching technique is not applicable? a)linear search b)none c)quick sort d)binary search ans : d 4)Encryption and decryption is done in which layer? a)DLL b)Network layer c)transport layer d)presentation layer ans : d 5)which of the following is not performed by the OS? a)cpu shceduling b)memory management c)Transaction d)none ans : c 1. Where is the MBR stored? 1. maintained by OS 2. MBR is in Boot. 3 MBR is in First sector of HDD 4. None of the above. 2. Where is the partition table stored? 1. BIOS 2. CMOS Setup 3. MBR 4. stored per partition. 3. Where is the boot record stored? 1. BIOS 2. CMOS Setup 3. MBR 4. stored per partition. 4. How many primary partitions can be created? 1. 1 2. 2 3. 3 4. 4 Ans : 4. 5. What is the difference between primary & extended partion? 1. Both are same 2. Primary and extended are in logical partion 3. primary cannot be subdivided but extended can be. 4. extended cannot be subdivided but primary can be. ans 3. 6. Can we create 2 primary dos partions? a)Yes b)No c)Depends on the hard Disk. d)None of the above. Ans: Yes 7. Can we create 2 extended partitions ? a)Yes b)No c)Depends on the hard Disk. d)None of the above. Ans: No. 8. How many partitions can be created on a given harddisk? a) Depends on the size of Disk. b) 24 c)4 d)26 9. Can we hide a partition? a) Yes b) No c) Depends on the Hard Disk d) None. ans: Yes. 10. Sliding window protocol lies in which layer? 1. Transport Layer 2. network Layer 3. Datalink layer 4. Application Layer Ans : 3. DAtalink layer 11. Which is the highest priority interrupt . 1. rst5.5 2. rst6.5 3. TRAP 4. HLD 12. 8085 is 1. 16-bit 2. 8-bit 3. 32-bit 4. 20-bit microprocessor. Ans : 2. 8 bit 13. protected mode is present in which processor 1. 8085 2. 8086 3. 80386 4.8087 14. The no. of address lines required to address 4k of memory a)11 b)12 c) 14 d) 16 Ans: b 15) Where is CMOS setup stored a) Hard Disk b) BIOS c)CMOS Ram d) MBR. Ans : CMOS Ram 1) main(){ int a; char *p; a = sizeof(int) * p; printf("%d ",a); } a) compile error b) run time error c) 4 d) compiler dependent ans:a 2)#define SIZE sizeof(int) main(){ int i=-1; if( i < SIZE ) printf("True "); else printf("False "); } a) True b) False c) can t predict d) None of these ans:b (?) 3) int (*fun())[] a) function returning a pointer to an array b) function returning an array of pointers c) pointer to a funtion which takes array as asrument d) Compiler error ans: a 4) main(){ int a=8,d; int *p; p=&a; d=a/*p; print("%d ",d); } a) 1 b) 0 c) compiler error d) run time error ans: c 5) main(){ char *a="Hello"; *a++ = h ; printf("%s ",a); } a) hello b) ello c) runtime error d) compiler error ans:b 6) main(){ char p[]="Hello"; p[0]= h ; printf("%s ", p); } a) hello b) Hello c) compiler error d) run time error ans:a 7) #define mysizeof(a) (&a+1) - &a main( float d; printf("%d ", mysizeof(d) ); } note: assume sizeof float is 8 bytes a) 8 b) 4 c) 1 d) compiler error ans:c 8) main() { int *p=10; printf("%d ",*p); } a) 10 b) run time error c) compiler error d) 5 ans:b (?) 9)main(){ int i=-1; i<<=2; printf("%d ",i); } a) -1 b) -2 c) -4 d) 0 ans:c 10) main(){ int i= 0xffffffff; printf("%d ",i); } note: size of int is 4 bytes a) -1 b) 65635 c) 100 d) error ans:a C questions 1> int A=1,B=2; if(A==B < printf("Hello ")) printf("world "); else printf("Bangalore "); What is the o/p? a> world b> Hello bangalore c> bangalore d> Hello world. ans > d> Hello world. 2> main() { int i; for(i=0; i< 10; i++) { int j=10; j++; printf("j= %d ", j); } } what is o/p ? a> 10 to 19 b> error j undeclared c> 10 times 11 d> 10 - 18 ans> c> 10 times 11. 3> union test{ int a; union test *p; }; main(){ union test q; printf(" a= %d ", q.a); } what is o/p? a> 0 b> syntax error c> garbage value d>run time error ans > c 4> register int a,b; main(){ for(a=0 ; a<5 ; a++) b++; } a> 5 b> 4 c> 0 d> error ans > d 5> # define dprint(expr) printf(" expr= %d ", expr) main(){ int i=10,j=2; dprint(i / j) ; } a> 5 b > expr= 5 c> i / j= 5 d> error. ans > b. Operating system concepts 1> Virtual memory is a> Infinite, user is not constrained while writing program. b> Finite it is limited by main memory + swap memory. c> Infinite ,Yes As the process needs memory it is allocated by demand paging. d> Finite ,It is limited by machines addressing capacity. ans> d 2> Find the correct sentence a> UNIX is monolithic MS-DOS is Microkernel b> UNIX & MS-DOS are both monolithic. c> UNIX & MS-DOS are both Microkernel. d> All are wrong. ans> b 3> In which OSI layer packet sequencing is checked a> Physical layer b> Data link layer c> Network layer d> Transport layer ans> d 4> In General purpose OS user cannot change which state of process. a> premption b> sleep c> creation d> ready ans> a 5> Which addressing scheme is not common for 8085 & 8086 a> Register addressing b> Indexed addressing c> Register Indirect addressing d> Direct addressing. Ans: b C What is the output of the following : 1. main() { int *p ; p=(int *)malloc(-10); } a) allocates 0 bytes b) allocates memory, if available c) compilation error d) Runtime error Ans) b 2. main() { for( printf("a") ; printf("b") ; printf("c") ) ; } a) abc b) abc abc abc .....(infinite times) c) a bc bc bc ....(infinite times) d) Error Ans) c 3. main() { int i= 10 * fun() ; printf("%d",i); } fun() { return 10 ; } a) 0 b) 10 c) 100 d) Error Ans) c 4. int i= 10 * fun() ; main() { printf("%d",i) ; } fun() { return 10 ; } a) 0 b) 10 c) 100 d) Error Ans) d 5. Assume size of int to be 2 bytes : main() { int i = 100 ; printf("%d ", sizeof(i++)); printf("%d ",i) ; } a) 2 100 b) 2 101 c) 100 101 d) 101 100 Ans) a Computer Fundamentals : 1. Which one of the following always resides in the memory ? a) Linker b) Loader c) Compiler d) All of the Above Ans) b 2. Which of these is not a layer in OSI model ? a) Application layer b) Network Layer c) Internet Layer d) Data Link Layer Ans) c 3. Which one of the following data structures is best suited for searching ? a) Arrays b) Singly Linked List c) Doubly Linked List d) Hash Table Ans) d 4. Which of the following data structures is best suited for Deletion ? a) Arrays b) Singly Linked List c) Doubly Linked List d) Hash Table Ans) c 5.Which one of these is not a scheduling technique in Operating System? a) Last-Come-First-Serve Scheduling b) First-Come-First-Serve Scheduling c) Preemptive Scheduling d) Round Robin Scheduling Ans) a 6. Demand Paging is a) All the pages of a process is loaded at the start b) When a single page is demanded then all other pages are also loaded c) When a page is required then only it is loaded d) None of the Above Ans) c 7. Page Fault is a) A page is referenced that is not in the memory . b) A page is referenced that is not in the Disk. c) A page being added to the process. d) None of the above Ans) a 8. If the number of internal nodes in a binary tree is n , then what is the number of external nodes ? a) n -1 b) n c) n + 1 d) 2n Ans) c 9. "Banker s Algorithm" is used for : a) Deadlock Detection b) Deadlock Avoidance c) Deadlock Prevention d) All of the above Ans) b 10. Which of the following is used fro designing a lexical analyser of a compiler ? a) Finite Automata b) Push Down Automata c) Turing Machine d) None of the above Ans) a 11. Which layer in the OSI model is responsible for End to End connectivity ? a) Data Link Layer b) Network Layer c) Transport Layer d) Session Layer Ans) c 1) what is big-endian. a) MSB at lower address LSB at higher address b) LSB at lower address MSB at higher address c) memory mgmt technique d) none of the above Ans:a 2)what is Little-endian. a) MSB at lower address LSB at higher address b) LSB at lower address MSB at higher address c) memory mgmt technique d) none of the above Ans:b 3)8086 has a)16 bit data bus ,16 bit address bus b)16 bit data bus,32 bit address bus c)8 bit data bus,16 bit address bus d)8 bit data bus,8 bit address bus Ans:a 4) what is the scheduling algorithm used in general operating systems. a) FCFS algorithm b) Highest Priority First algorithm c) Round-Robin algorithm d) None of the above Ans:c 5)Router is present at a)Physical layer b)Data Link Layer c)Network Layer d)None of above Ans:c 6)Condition for deadlock occurance a) Mutual Exclusion b) no premption c) hold and wait d) circular wait e) all of the above Ans:d 7)PCI stands for a)Programmable computer Interface b)Peripheral Computer Interface c)programmable Control Interface d)Peripheral Component Interface Ans:d 8)Toggle state in J-K flip-flop is a)0 1 b)1 0 c)1 1 d)0 0 Ans :c 9)Interrupt is serviced a)Immediatly when it occurs b)After the completion of current instruction. c)Ignored d)None of the above. Ans:b C Questions : 1.what is the o/p ? void main() { char *mess[]={"Have","a","nice","day","Bye"); printf("%d %d",sizeof(mess),sizeof(mess[1])); } a. 16 4 b. 5 4 c. 20 4 d. Error Answer: c 2.what is the o/p of the following programe? void main() { int i,count=0; char *p1="abcdefghij"; char *p2="alcmenfoip"; for(i=0;i<=strlen(p1);i++) { if(*p1++ == *p2++) count+=5; else count-=3; } printf("count=%d ",count); } a. 15 b. 6 c. 12 d. compiler error Answer: b ( note : strlen(p1) == i when i=6) 3.what does main return on successful execution? a. 1 b. 0 c. -1 d.Nonzero Answer : b 4. main(int argc,char *argv[]) { printf((argc > 1 ? "%c" : "%c",*++argv); } If the i/p string is "GESL Bangalore". a. G b. E c. B d. GESL Answer: c 5. How do u declare a pointer to an array of pointers to int? a. int *a[5]; b. int **a[5]; c. int *(*a)[5]; d. u con not declare Answer: c Questions on OS: 1.UDP is a a. Reliable protocol b. Unreliable protocol c. Connectionless protocol d. Both b & c Answer: d 2.Real Time OS uses a. RISC processor b. CISC processor c. SISC processor d. Any of the above Answer: a 3.Race condition could be overcome using a. A global variable b. A local variable c. Mutex d. All of the above 4.Repeaters are in a. Data link layer b. Physical layer c. Network layer d. Transport layer Answer: b 5.Telecom Networking uses a. Packet switching b. Circuit switching c. Message switching d. Non of the above Ans : b ( normally ) |
