SAI Consulting Engineers Technical Support Engineer Interview Questions and Answers

Technical plus general knowledge appti

Q1. OOPS concepts and .net questions
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Q1. Salary Discussion and Company culture
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Easy-Moderate, Coding problem related to string

Q1. 1. Merge conflict in Git.
Ans. 
Merge conflict occurs when two or more developers make changes to the same file in Git.
• It happens when two or more developers make changes to the same file in Git.

• Git is unable to automatically merge the changes and requires manual intervention.

• Developers need to resolve the conflict by choosing which changes to keep and which to discard.

• Common tools used to resolve merge conflicts include Git's command-line interface ...read more
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Q2. 2. Reverse a string without inbuilt function
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Reverse a string without inbuilt function
• Iterate through the string from end to start

• Append each character to a new string

• Return the new string
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Q1. 1. Tell me about your current project
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Q1. What are your salary expectations?
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Q1. Question on Object-Oriented Programming Principles
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Q2. What is malloc?
Ans. 
malloc is a function in C programming used to dynamically allocate memory during runtime.
• malloc stands for 'memory allocation'.

• It is used to allocate a specific amount of memory during program execution.

• The allocated memory is not automatically initialized and must be manually managed.

• Example: int *ptr = (int*) malloc(5 * sizeof(int));
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Q3. What is free ?
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Free refers to something that is given or available without cost or payment.
• Free products or services do not require any payment.

• Free can also refer to freedom or liberty, such as free speech or free will.

• Free can also mean available for use without restrictions, like open-source software.
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Q4. Some coding qusetion
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Q5. What is null pointer ?
Ans. 
A null pointer is a pointer that does not point to any memory location.
• Null pointers are used to represent that a pointer does not point to a valid object or memory location.

• Attempting to dereference a null pointer can result in a segmentation fault or program crash.

• Null pointers are commonly used in programming languages like C and C++.

• Example: int* ptr = nullptr; // ptr is a null pointer
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Q1. About my college project
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Q1. Reverse the Linked List?
Ans. 
Reverse a linked list by changing the direction of pointers.
• Start with three pointers: current, previous, and next.

• Iterate through the linked list, updating pointers to reverse the direction.

• Return the new head of the reversed linked list.
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Q2. Reverse a string?
Ans. 
To reverse a string, iterate through the characters and swap the characters from start to end.
• Iterate through the characters of the string

• Swap the characters from start to end until reaching the middle of the string

• Return the reversed string
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