Sportz Interactive Software Developer Interview Questions and Answers

Mcq based on language

Q1. Do you know STL. Find loop in linked list.
Ans. 
STL knowledge and finding loop in linked list
• STL (Standard Template Library) is a C++ library that provides containers, algorithms, and iterators.

• To find a loop in a linked list, we can use Floyd's cycle-finding algorithm.

• In this algorithm, we use two pointers, one moving at a slower pace and the other at a faster pace.

• If there is a loop in the linked list, the faster pointer will eventually catch up to the slower poin...read more
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HACKERANK CODING TEST

Q1. BASIC STUFF ABOUT DBMS, OOPS, SYSTEM DESIGN
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MACHINE LEARNING - HAD TO DESIGN ONE OF CRICBUZZ FEATURE

Classes, oops, array, constructor

Q1. Write a code for copy constructor
Ans. 
A copy constructor is a special type of constructor that creates a new object as a copy of an existing object.
• Copy constructor should have a parameter of the same class type

• It is used to create a new object by copying the values of an existing object

• It is called when a new object is created from an existing object
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Q2. Write a code for virtual function
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A virtual function is a member function that is declared within a base class and is redefined by a derived class.
• Declare a virtual function in the base class using the 'virtual' keyword.

• Override the virtual function in the derived class using the 'override' keyword.

• Use the base class pointer to call the virtual function, which will be resolved at runtime based on the actual object type.
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Q1. Design patterns
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Q2. Oops concept and implementation
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Oops concept refers to Object-Oriented Programming principles and their implementation in software development.
• Oops concepts include inheritance, polymorphism, encapsulation, and abstraction.

• Inheritance allows a class to inherit properties and behaviors from another class.

• Polymorphism allows objects to be treated as instances of their parent class.

• Encapsulation hides the internal state of an object and only exposes nec...read more
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Q1. 4 Coding question to be solve live
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Three coding online assessments - screening round.

Two to three coding questions based on dynamic programming.

Q1. Resume based and computer network
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Q1. Simple hr question
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Q1. What are the storage classes in C.
Ans. 
C has four storage classes: auto, register, static, and extern.
• Auto: default storage class for local variables

• Register: stores variables in CPU registers for faster access

• Static: retains value between function calls

• Extern: used to access global variables across multiple files
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Q2. How does static and extern differ from one another
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Static and extern are storage classes in C/C++ with different functionalities.
• Static variables have a local scope but retain their value between function calls.

• Extern variables are declared outside a function and can be accessed by other files.

• Static functions can only be called within the same file they are declared in.

• Extern functions are declared in one file and can be used in other files.

• Static classes and function...read more
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Q3. How you can send one file from one system to another using C program?
Ans. 
Use sockets to establish a connection between two systems and transfer the file using file I/O operations.
• Create a socket on the sender system using socket() function.

• Bind the socket to a port using bind() function.

• Establish a connection to the receiver system using connect() function.

• Open the file to be transferred using fopen() function.

• Read the file contents using fread() function.

• Send the file contents using send()...read more
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Q4. What is half duplex and full duplex ?
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Q5. What is serial protocol?
Ans. 
Serial protocol is a communication protocol used to transmit data between devices one bit at a time.
• Serial protocol is used in many applications such as RS-232, SPI, I2C, and USB.

• It is a simple and reliable way to transmit data over a long distance.

• Serial protocol can be synchronous or asynchronous.

• It is commonly used in embedded systems and communication between microcontrollers and sensors.
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Q6. Write a program to store data in a file block by block, each block containing 100 bytes. Reserve first 4 bytes for reading index, second four bytes for writing index. Here index is the block index which is...read more
Ans. 
Program to store data in file block by block with 100 bytes per block and first 4 bytes for reading index and second 4 bytes for writing index.
• Use file handling functions to read and write data to file

• Use a loop to write data block by block

• Use a counter to keep track of block index

• Use bitwise operators to extract index from first 4 bytes
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