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10+ Chimatech Project Interview Questions and Answers

Updated 5 Feb 2024
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Q1. What have you done on real implementation on linux OS?

Ans.

I have implemented various software applications on Linux OS.

  • Developed a web application using Python Flask framework on Linux server

  • Created a custom Linux kernel module for a hardware device driver

  • Implemented a distributed system using Apache Kafka on Linux machines

  • Optimized performance of a database server running on Linux by tuning kernel parameters

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Q2. What is microprocessor and explain register names?

Ans.

A microprocessor is a computer processor that incorporates the functions of a central processing unit on a single integrated circuit.

  • Microprocessors are used in various electronic devices such as computers, smartphones, and gaming consoles.

  • Register names include program counter (PC), accumulator (ACC), general-purpose registers (GPR), and memory address register (MAR).

  • Registers are used to store data and instructions temporarily for processing.

  • The number of registers and thei...read more

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Q3. What is difference between C and C++?

Ans.

C++ is an extension of C with object-oriented programming features.

  • C++ supports object-oriented programming while C does not.

  • C++ has classes and templates while C does not.

  • C++ has better support for exception handling than C.

  • C++ has a standard library while C does not.

  • C++ allows function overloading while C does not.

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Q4. What is difference between array and linked list?

Ans.

Arrays are contiguous blocks of memory while linked lists are made up of nodes that point to the next node.

  • Arrays have fixed size while linked lists can grow dynamically.

  • Insertion and deletion are faster in linked lists than in arrays.

  • Arrays have better cache locality while linked lists have better memory utilization.

  • Arrays are accessed using indices while linked lists are accessed using pointers.

  • Examples of arrays include int[] and char[] while examples of linked lists inclu...read more

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Q5. Explain whole process for Example.c file to Example.exe conversion

Ans.

The process of converting Example.c file to Example.exe involves several steps.

  • Preprocessing: includes header file inclusion, macro expansion, and conditional compilation

  • Compilation: converts source code to object code

  • Linking: combines object code with libraries to create executable file

  • Debugging: identifying and fixing errors in code

  • Optimization: improving performance of executable file

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Q6. What is data abstraction and explain with code?

Ans.

Data abstraction is the process of hiding implementation details and showing only necessary information.

  • Abstraction is achieved through abstract classes and interfaces.

  • It helps in reducing complexity and increasing efficiency.

  • Example: abstract class Shape with abstract method draw() implemented by its subclasses like Circle and Rectangle.

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Q7. Write a SQL query to join two tables?

Ans.

SQL query to join two tables

  • Use JOIN keyword to combine two tables based on a common column

  • Specify the columns to be selected using SELECT keyword

  • Use ON keyword to specify the common column between two tables

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Q8. WAP for recursion and explain its working?

Ans.

Recursion is a technique where a function calls itself to solve a problem. WAP for recursion is to write a program using recursion.

  • Recursion is used to solve problems that can be broken down into smaller sub-problems.

  • The base case is the condition where the function stops calling itself.

  • The recursive case is where the function calls itself with a smaller input.

  • Example: Factorial of a number can be calculated using recursion.

  • Example: Fibonacci series can be generated using rec...read more

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Q9. What is TCP/IP,OSI model?

Ans.

TCP/IP is a protocol used for communication between devices on the internet. OSI model is a conceptual framework for network communication.

  • TCP/IP is a suite of protocols that governs communication between devices on the internet.

  • OSI model is a conceptual framework that divides network communication into seven layers.

  • TCP/IP is based on a four-layer model, which includes the application, transport, internet, and network access layers.

  • The OSI model includes the physical, data li...read more

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Q10. What is program counter?

Ans.

Program counter is a register that stores the memory address of the next instruction to be executed by the processor.

  • Program counter is also known as instruction pointer.

  • It is a part of the processor's control unit.

  • The value of program counter is incremented after each instruction is executed.

  • If a program counter is corrupted, the processor may execute incorrect instructions.

  • Example: If the program counter is pointing to memory address 100, the next instruction to be executed...read more

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Q11. Explain SQL commands?

Ans.

SQL commands are used to interact with databases and manipulate data.

  • SELECT: retrieve data from a database

  • INSERT: add new data to a database

  • UPDATE: modify existing data in a database

  • DELETE: remove data from a database

  • CREATE: create a new database or table

  • ALTER: modify the structure of a database or table

  • DROP: delete a database or table

  • JOIN: combine data from multiple tables

  • GROUP BY: group data based on a specific column

  • ORDER BY: sort data based on a specific column

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Q12. WAP to reverse string?

Ans.

A program to reverse a given string.

  • Create an empty string to store the reversed string.

  • Iterate through the original string from end to start.

  • Append each character to the empty string.

  • Return the reversed string.

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Q13. Explain pointers and heap ?

Ans.

Pointers are variables that store memory addresses. Heap is a region of memory used for dynamic memory allocation.

  • Pointers are used to access memory directly

  • Heap is used for dynamic memory allocation

  • Pointers can be used to create data structures like linked lists

  • Heap memory must be manually managed to avoid memory leaks

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Q14. What is join and how many types.

Ans.

Join is a SQL operation that combines rows from two or more tables based on a related column between them.

  • Join is used to retrieve data from multiple tables in a single query.

  • There are four types of joins: Inner Join, Left Join, Right Join, and Full Outer Join.

  • Inner Join returns only the matching rows from both tables.

  • Left Join returns all the rows from the left table and matching rows from the right table.

  • Right Join returns all the rows from the right table and matching rows...read more

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2 Interview rounds
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HR Round
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