Amazon Applications Engineer Interview Questions and Answers

To search a file inside folder levels via command line, use the 'find' command.

• Open the command prompt or terminal

• Navigate to the folder where you want to start the search

• Use the 'find' command followed by the name of the file you want to search for

• Optionally, you can specify the depth of the search using the '-maxdepth' flag

• Example: 'find . -name myfile.txt -maxdepth 2'

Discovered a bug in the software during testing and resolved it by identifying the root cause and implementing a fix.

• During testing, found a bug where the application crashed when a specific input was entered.

• Investigated the issue by analyzing the code and logs to identify the root cause.

• Implemented a fix by updating the code to handle the input correctly and retested to ensure the bug was resolved.

Check volume settings, restart phone, check for software updates, test with headphones

• Check if volume is turned up on the phone

• Restart the phone to see if that resolves the issue

• Check for any software updates that may fix the problem

• Test the speakers with headphones to determine if the issue is with the speakers or the phone

Check if array of strings is monotonous

• Iterate through the array and compare each string with the next one to check for monotonicity

• If all strings are in increasing or decreasing order, the array is monotonous

• Examples: ['apple', 'banana', 'cherry'] is monotonous, ['orange', 'kiwi', 'apple'] is not

Reverse a linked list

• Create three pointers: current, prev, and next

• Iterate through the linked list, updating pointers accordingly

• Set the head of the linked list to the new tail