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Online c programming test using online tool
I applied via Naukri.com and was interviewed before Feb 2023. There was 1 interview round.
Storage classes in C define the scope and lifetime of variables.
Storage classes include auto, register, static, extern, and typedef.
Auto variables are local to the block they are declared in.
Register variables are stored in CPU registers for faster access.
Static variables retain their value between function calls.
Extern variables are declared in one file and can be used in another file.
Typedef is used to create new dat
Device drivers are software programs that allow the operating system to communicate with hardware devices.
Device drivers act as a translator between the hardware device and the operating system.
They provide a standardized interface for the operating system to interact with different types of hardware devices.
Device drivers help improve system stability and performance by enabling efficient communication between hardwar...
You can copy files from one device to another by using file transfer protocols like FTP, SCP, or by physically transferring the files via USB or external storage devices.
Use FTP (File Transfer Protocol) to transfer files over a network
Use SCP (Secure Copy Protocol) for secure file transfers
Physically transfer files by connecting devices via USB or using external storage devices like USB drives or SD cards
Swapping two variables without using a third variable
Use XOR operation: a = a ^ b; b = a ^ b; a = a ^ b;
Use addition and subtraction: a = a + b; b = a - b; a = a - b;
Use multiplication and division: a = a * b; b = a / b; a = a / b;
I applied via LinkedIn and was interviewed before Jun 2021. There were 2 interview rounds.
Code snippets of c programming
Use #include to include header files
Use int main() to start the program
Use printf() to print output
Use scanf() to take input
Use if-else statements for conditional execution
Use loops like for, while, do-while for repetitive tasks
Use arrays to store multiple values of same data type
Use pointers to manipulate memory addresses
Use structures to group related data
Use functions to modularize code
ISR routine is a function that is executed in response to an interrupt signal.
ISR stands for Interrupt Service Routine
It is used to handle hardware interrupts
ISR routines are written in C language
They are executed when an interrupt signal is received
ISR routines should be short and efficient
They should not block other interrupts
Examples of ISR routines include handling keyboard input or timer interrupts
What people are saying about Wipro
I applied via Referral and was interviewed in Nov 2020. There were 5 interview rounds.
I applied via Walk-in and was interviewed in Jul 2019. There were 3 interview rounds.
I applied via Company Website and was interviewed before Oct 2019. There were 4 interview rounds.
I appeared for an interview before Jul 2021.
Polymorphism is the ability of an object to take on many forms. It allows objects of different classes to be treated as if they were of the same class.
Polymorphism is achieved through method overriding and method overloading.
Method overriding is when a subclass provides a specific implementation of a method that is already provided by its parent class.
Method overloading is when a class has two or more methods with the ...
Dependency Injection is a design pattern where the dependencies of an object are injected into it rather than created within it.
It helps in achieving loose coupling between objects
It makes testing easier as dependencies can be mocked or stubbed
There are three types of Dependency Injection - Constructor Injection, Setter Injection, and Interface Injection
Example: In a web application, the database connection object can ...
Garbage Collection in .Net automatically manages memory by freeing up unused objects.
Garbage Collector runs in the background and periodically checks for unused objects.
It frees up memory by deallocating objects that are no longer being used.
GC can be configured using different modes like Server, Workstation, Concurrent, etc.
GC can also be manually triggered using GC.Collect() method.
GC.SuppressFinalize() method can be...
I applied via Campus Placement and was interviewed before Aug 2021. There was 1 interview round.
Data structure is a way of organizing and storing data in a computer so that it can be accessed and used efficiently.
Data structures are used to manage large amounts of data efficiently.
They can be implemented using arrays, linked lists, trees, graphs, and other techniques.
Examples include stacks, queues, hash tables, and binary search trees.
Choosing the right data structure for a particular problem is important for op...
Stack and Queue are used in real-time systems for managing tasks and events.
Stack is used for managing function calls, undo/redo operations, and backtracking.
Queue is used for managing events, scheduling tasks, and buffering data.
Real-time systems use both data structures for managing tasks and events in a time-sensitive manner.
Examples include task scheduling in operating systems, event handling in GUI applications, a
I applied via Company Website and was interviewed before Aug 2021. There were 2 interview rounds.
Any programming language i.e.as resume mentioned
I applied via Walk-in and was interviewed before Apr 2021. There were 3 interview rounds.
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