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Dynamic Memory Allocation in C Interview Questions

Below we have listed all the Dynamic Memory Allocation in C Interview Questions and answers. Feel free to comment on any Dynamic Memory Allocation in C Interview Questions or answer by the comment feature available on the page.

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C Dynamic Memory Allocation: malloc(), calloc(), free() & realloc() The exact size of array is unknown untill the compile time,i.e., time when a compiler compiles code written in a programming language into a executable form. Dynamic allocation is a pretty unique feature to C (amongst high level languages). It enables us to create data types and structures of any size and length to suit our programs need within the program.

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Is it better to use malloc() or calloc()?
3.6 Rating
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How can you determine the size of an allocated portion of memory?
3.8 Rating
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when should the volatile modifier be used?
3.6 Rating
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Difference between calloc() and malloc()?
3.8 Rating
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What are advantages and disadvantages of external storage class?
4.2 Rating
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What is the purpose of realloc( )?
3.5 Rating
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what is the difference between the functions memmove() and memcpy()?
2.8 Rating
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What is the heap?
3.6 Rating
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What?s wrong with this code?

Char*p
*p=malloc(10);
5.0 Rating
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What?s wrong with this code?

Char*p
*p=malloc(10);
4.9 Rating
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What is the difference between new/delete and malloc/free?
3.0 Rating
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Difference between malloc and calloc?
4.5 Rating
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What is static memory allocation and dynamic memory allocation?
3.5 Rating
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when memory will be created after defining in c and c++;
3.1 Rating
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Why does malloc(0) return valid memory address ? What's the use ?
4.5 Rating
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How can you determine the size of an allocated portion of memory ?
3.6 Rating
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Difference between calloc and malloc ?
3.5 Rating
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Why do we need to test weather it is memory leak or not?

How are we going to know that?


3.1 Rating
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How to write calloc() in terms of malloc()? ie malloc() should initialise the memory to zero after allocating it
3.2 Rating
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What is the difference between calloc() and malloc() ?
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Latest 20 Questions
An offer which is open for acceptance over a period of time is: (a) Cross Offer (b) Counter Offer (c) Standing Offer (d) Implied Offer
Specific offer can be communicated to__________ (a) All the parties of contract (b) General public in universe (c) Specific person (d) None of the above
_________ amounts to rejection of the original offer. (a) Cross offer (b) Special offer (c) Standing offer (d) Counter offer
A advertises to sell his old car by advertising in a newspaper. This offer is caleed: (a) General Offer (b) Special Offer (c) Continuing Offer (d) None of the above
In case a counter offer is made, the original offer stands: (a) Rejected (b) Accepted automatically (c) Accepted subject to certain modifications and variations (d) None of the above
In case of unenforceable contract having some technical defect, parties (a) Can sue upon it (b) Cannot sue upon it (c) Should consider it to be illegal (d) None of the above
If entire specified goods is perished before entering into contract of sale, the contract is (a) Valid (b) Void (c) Voidable (d) Cancelled
______________ contracts are also caled contracts with executed consideration. (a) Unilateral (b) Completed (c) Bilateral (d) Executory
A offers B to supply books @ Rs 100 each but B accepts the same with condition of 10% discount. This is a case of (a) Counter Offer (b) Cross Offer (c) Specific Offer (d) General Offer
_____________ is a game of chance. (a) Conditional Contract (b) Contingent Contract (c) Wagering Contract (d) Quasi Contract
There is no binding contract in case of _______ as one's offer cannot be constructed as acceptance (a) Cross Offer (b) Standing Offer (c) Counter Offer (d) Special Offer
An offer is made with an intention to have negotiation from other party. This type of offer is: (a) Invitation to offer (b) Valid offer (c) Voidable (d) None of the above
When an offer is made to the world at large, it is ____________ offer. (a) Counter (b) Special (c) General (d) None of the above
Implied contract even if not in writing or express words is perfectly _______________ if all the conditions are satisfied:- (a) Void (b) Voidable (c) Valid (d) Illegal
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____________ agreements are created by situation: (a) Written (b) Oral (c) Void (d) Implied
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