IEO MAKERS FABLAB (OPC) PRIVATE LIMITED interview experience Real time questions & tips from candidates to crack your interview

SDE - 1

IEO MAKERS FABLAB (OPC) PRIVATE LIMITED
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1 rounds | 1 Coding problems

Interview preparation journey

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Preparation
Duration: 1 month
Topics: I prepared HTML,CSS, Java Script ,data structures and algorithms.
Tip
Tip

Tip 1 : Revise data structure and algorithms.
Tip 2 : Revise HTML,CSS ,JS and show your projects.
Tip 3 : Be Confident.

Application process
Where: Campus
Eligibility: NO
Resume Tip
Resume tip

Tip 1 : Mention your projects
Tip 2 : Put things in chronological order

Interview rounds

01
Round
Medium
Video Call
Duration40 minutes.
Interview date10 Apr 2020
Coding problem1

1. What is Dangling pointer?

Problem approach

Dangling Pointer is a pointer that doesn’t point to a valid memory location. Dangling pointers arise when an object is deleted or deallocated, without modifying the value of the pointer, so that the pointer still points to the memory location of the deallocated memory. Following are examples.

// EXAMPLE 1
int* ptr = (int*)malloc(sizeof(int));
..........................free(ptr);

// ptr is a dangling pointer now and operations like following are invalid
*ptr = 10; // or printf("%d", *ptr);

// EXAMPLE 2
int* ptr = NULL
{
int x = 10;
ptr = &x;
}
// x goes out of scope and memory allocated to x is free now.
// So ptr is a dangling pointer now.

Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

Skill covered: Programming

Which SQL keyword removes duplicate records from a result set?

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