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Avalara Technologies
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I applied via Job Fair and was interviewed in Apr 2023. There were 3 interview rounds.
Selenium is an open-source automation testing framework used for web applications.
Selenium supports multiple programming languages like Java, Python, C#, etc.
It consists of Selenium WebDriver, Selenium IDE, and Selenium Grid.
Selenium WebDriver is used for automating web applications by interacting with the web elements.
Selenium IDE is a record and playback tool for creating test cases.
Selenium Grid is used for parallel...
Checked exceptions are checked at compile time, while unchecked exceptions are not.
Checked exceptions must be either caught or declared in the method signature using 'throws' keyword.
Unchecked exceptions do not need to be explicitly handled.
Examples of checked exceptions include IOException, ClassNotFoundException.
Examples of unchecked exceptions include NullPointerException, ArrayIndexOutOfBoundsException.
Exceptions in Selenium are errors that occur during test execution, such as ElementNotVisibleException or TimeoutException.
Selenium WebDriver throws exceptions when it encounters errors during test execution.
Common exceptions include NoSuchElementException, ElementNotVisibleException, TimeoutException, StaleElementReferenceException, and WebDriverException.
Handling exceptions in Selenium can be done using try-catch blo...
Waits in Selenium are used to synchronize tests with the browser's state.
Waits help to handle synchronization issues in Selenium tests
There are two types of waits in Selenium - Implicit Wait and Explicit Wait
Implicit Wait sets a default waiting time for the entire test script
Explicit Wait allows the test to wait for a certain condition to be met before proceeding
Reverse string without using loop
Use recursion to reverse the string
Base case: if string length is 0 or 1, return the string
Recursive case: return the last character + reverse(rest of the string)
Implement a parenthesis balancing algorithm using a stack
Use a stack to keep track of opening parentheses
When encountering a closing parenthesis, pop from stack and check if it matches the closing parenthesis
If stack is empty or mismatched parentheses, return false
If all parentheses are balanced, return true
I applied via Naukri.com and was interviewed in May 2024. There was 1 interview round.
posted on 9 May 2024
I applied via Campus Placement and was interviewed in Apr 2024. There were 2 interview rounds.
Tha aptitude exam was not very easy and not that difficult. It was something which one can easily get into.
posted on 18 Jul 2024
I applied via Naukri.com and was interviewed before Jul 2023. There were 2 interview rounds.
IPC mechanism in Windows allows communication between processes through shared memory, message passing, and synchronization.
IPC mechanisms in Windows include named pipes, mailslots, shared memory, and sockets.
Named pipes allow communication between processes on the same machine or over a network.
Mailslots are used for one-way interprocess communication.
Shared memory allows processes to share data by mapping a region of...
Multi-threading in Windows allows multiple threads to run concurrently within a single process.
Windows provides APIs like CreateThread and CreateProcess to create and manage threads.
Threads share the same memory space within a process, allowing for efficient communication and resource sharing.
Windows supports both user-mode and kernel-mode threads, with user-mode threads being more lightweight.
Synchronization mechanism...
Memory mapping in Windows allows files to be mapped directly into memory for faster access and manipulation.
Memory mapping allows files to be accessed as if they were in memory
File mapping can be used for sharing data between processes
Improves performance by reducing disk I/O operations
Examples: CreateFileMapping, MapViewOfFile, UnmapViewOfFile
Critical section in Windows is a synchronization mechanism used to protect shared resources from concurrent access.
Critical sections are used to ensure mutual exclusion between threads accessing shared resources.
They are implemented using the Windows API functions InitializeCriticalSection, EnterCriticalSection, and LeaveCriticalSection.
Critical sections are more efficient than mutexes for synchronization within a sing...
posted on 11 Sep 2024
It was online , evryone cheated , and even solving all the questions wont get you shortlisted
Dynamic memory allocation in C allows for allocating memory at runtime, enabling flexibility in memory usage.
Use functions like malloc(), calloc(), and realloc() to dynamically allocate memory in C.
Remember to free the allocated memory using free() to prevent memory leaks.
Dynamic memory allocation is commonly used for creating arrays or structures of unknown size at compile time.
posted on 29 Sep 2024
I applied via Instahyre and was interviewed in Aug 2024. There were 2 interview rounds.
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