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Which one of the following statements allocates enough space to hold an array of 10 integers that are initialized to 0 ?
A) int *ptr = (int *) calloc(10,sizeof(int)); b) int *ptr = (int *) alloc( 10*sizeof(int)); c) int *ptr = (int *) malloc( 10*sizeof(int)); d) int *ptr = (int *)calloc(10*sizeof(int));
santhos kumar
- Dec 23rd, 2006
Yes the answer is (a), only calloc is reinitialized to 0; malloc will have garbage value and alloc is the headerfile used to invoke calloc and malloc.
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Class professor{} class teacher: public virtual professor{}; class researcher: public virtual professor {} class myprofessor :public teacher, public researcher {};Referring to the sample code above ,if an object of class “myprofessor” were created ,how many instances of professor will it contain?
A) 0 b) 1 c) 2 d) 3
Ayushi Agarwal
- Mar 25th, 2010
Ans:bSince class teacher and reseacher inherits class professor virtually only 1 copy of class of professor is inherited by class my professor.
phanimadhavi1
- Jun 10th, 2007
It will get one instance of professor so answer is (b)
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Link list is implemented as a structure (data, link *), How is pointer moved to the next node, cursor points to the present node. A. cursor == cursor->link B. cursor ++ C. ++ cursor D. none of these
abhimanipal
- Mar 4th, 2010
I think the correct answer should be cursor= cursor->linkcursor== cursor->link does not make sense
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Register variables can hold A. Garbage values B. Arrays C. Double values D. All of the above
amar114715
- Jan 5th, 2010
C . Registers hold the values that are temporary and which are being used in programms, It is like cache memory as in computers.
ravi kiran
- Jun 27th, 2006
Register variables can hold A. Garbage valuesB. ArraysC. Double valuesD. All of the aboveo/p: These r can hold garbage values only. its ...
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ACL stands for A. access central limit B. access control limit C. access control list D. Both A and B
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File System Find Command
What is the major expressions used with find command to select file which has been accessed more than 375 days ago?
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#include <iostraem> Referring to the sample code above ,which of the following could you use to make the standards I/O Stream classes accessible without requiring the scope resolution operator ?
A) using namespace std::iostream b) using namespace std; c) using namespace iostream ; d) using iostream;
yash grotra
- Jul 24th, 2006
Its b.
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Which of the following best explains life cycle of Defect ?
a) Defect Found -> Defect Logged -> Defect Debugged -> Defect Closed -> Defect Rechecked b) Defect Found -> Defect Debugged -> Defect Reported -> Defect Rechecked -> Defect Closed c) Defect Debugged -> Defect Found -> Defect Closed -> Defect Reported -> Defect Rechecked d) Defect Found -> Defect Logged -> Defect Debugged -> Defect Rechecked ->...
lara.harsh
- Dec 15th, 2009
d) Defect Found -> Defect Logged -> Defect Debugged -> Defect Rechecked -> Defect Closed
sridharrganesan
- Oct 16th, 2007
Defect Found -> Defect Logged -> Defect Debugged -> Defect Rechecked -> Defect Closedbest suites for the life cyle of the Defect
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You are given an array of N integers from 1 to N. There is one integer which is repeated twice and one which is missing. Write an algorithm to find the missing integer
identitycrisis
- Sep 14th, 2009
#include<iostream>using namespace std;int main(){int a[]={1,2,3,4,5,5,6,8};int sum=0,n=8,temp;for(int i=0;i<n;i++){ if(a[i]!=i+1) { temp=...
Stan Buyanov
- Jul 5th, 2008
//int a[] = {1,2,3,4,4,6,7,...N};for (int i=0; i < N; ++i){ if (a[i] ^ i+1) { std::cout << "missing number is " << i+1; } }
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Modern RDBMS perform the following the following function except ___________.
a) Force column values in one table to match any of the values in a column of another table b) Automatically replicate data on another server c) Automatically create new indexes based on query history d) Prevent unauthorized users from accessing data at the first level
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What is Thread ?(VC++)What is the difference between Cmutex and Csemaphone?
shameelabdulla
- Feb 11th, 2009
Cmutex is the synchronization object to control access of a resource by multiple applications(one thread of each application to access the resource at a time).CSemaphore is the synchronization object ...
sivaprasad
- Oct 25th, 2006
Hai,Thread: is a path Execution of a program....So that the thread having its own stack,and all other resources..In VC++ we have 4 synchronization Objects.1)CCriticalSection: This is not aKernal objec...
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main() { i=10; printf("%d",++i++); printf("%d",++i); } A. 11 and 13 B. 12 and 13 C. error D. Both A and B
Bhoomika sharma
- Dec 13th, 2008
We are given with the above code basically gives us an error as-Lvalue required as:i=10;++i++means okay, let's take ++i=11, thus value of i is 11 now, you have i=11, but the post increment operator me...
dexter7574
- May 19th, 2007
If taken that i is int...then ans is C , error s there will be in lvalue increment error, (linux mode) ..
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How do you represent a negative number in ones complement?
complement and add 1
Bhoomika sharma
- Dec 13th, 2008
You should first write ny num in positive form e.g.-127(in 8-bits)01111111for -127 weput a 1 in front of the num i.e. in the starting position of the represntationi.e. known as a signed magnitudeso is:11111111
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What is ROM?
read only memory
phaniraj baggolli
- Oct 18th, 2008
Read Only Memory is a secondary type non-volatile memory. Write operations cannot be performed since, it is read only. Once if it is programmed you cannot do changes in it.Also there are some ROM in which we can make changes.Type of Rom:- PROM,EPROM,EEPROM.
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Which is a type of primary memory? A. RAM and ROM B. HDD C. CDROM D. none of these
A
Saurabh
- Sep 21st, 2006
Answer is DBcoz ROM is not the primary memory
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}">
#What will be the Outputvoid main(){ clrscr(); printf("yogesh""bansal");}
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Which is layer 3 connection less protocol? A. IP B. ARP C. TCP D. UDP
suryaks
- Jul 14th, 2008
As per the TCP/IP suite, UDP is a layer 4 protocol. But the correct answer for this question is IP, which is layer 3 and connectionless procotol.
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What do you know about trees and tell the types of tree?
babji03
- Jun 6th, 2008
Tree is a finite set of nodes which is non empty by definition, a specially designated node called root and distinct subsets , each subset is again a tree. Types of trees:1.Binary trees2.B+ trees3.B* trees4.Balanced trees5.AVL trees6.Forest..................etc
swathi
- Oct 25th, 2006
Binary tree
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An expression like ((A+B*(D+E/F). Write the postfix expression
babji03
- Jun 6th, 2008
The steps are1. a+b*de/f+2. a+b*def/+ 3. a+bdef/+* 4. abdef/+*+ answer is........... ABDEF/+*+
pvp
- Dec 25th, 2005
( ( A + B * ( D + E / F) ) ) POSTFIX NOTATION IS( ( A + B * ( D + EF/ ) ) )( ( A + B * ( DEF/+ ) ) LIKE PROCEDING FURTHER WE GETABDEF / + * +
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What is the usage of static function?
to access static members
arunMkumar
- May 29th, 2008
In oops Static functions let u to invoke it with out any object of a class , instead u have to use the class name to invoke it... main() { class_name::static_fn_name(); } &nb...
bhoji_005
- Oct 5th, 2007
If you write int i;then i contain garbage value.If you intilize with static int i;Then i contain 0 by default
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