10+ Interview Questions and Answers

Traverse an array by jumping the number of times the value at that index

• Create a loop to traverse the array

• Use modulo operator to handle circular array

• Jump to the index based on the value at current index

• Repeat until all elements are visited

Code to find strings in a dictionary matching a given pattern

• Iterate through the dictionary and check if each string matches the pattern

• Add the matching strings to an output array

• Return the output array

Form the largest string using a, b, and c with the condition that 3 (a, b, or c) can't be together.

• Start with the most frequent letter and alternate with the other two.

• If there are two letters with the same frequency, start with the one that has the least number of adjacent letters.

• Example: 'abcabcab' is not valid, but 'abacbac' is valid and larger.

BGP confederation is a method to reduce the number of iBGP peers. BGP state machines are used to maintain BGP sessions. NSSA is a type of OSPF area. AS-PATH in BGP confederation is modified.

• BGP confederation is used to split a large AS into smaller sub-ASes to reduce the number of iBGP peers.

• BGP state machines are used to maintain BGP sessions and exchange routing information.

• NSSA (Not-So-Stubby Area) is a type of OSPF area that allows external routes to be imported into the ...read more

A thread pool is a group of threads that can be reused to execute multiple tasks concurrently.

• Define a task interface that encapsulates the work to be done

• Create a queue to hold tasks

• Create a fixed number of threads in the pool

• Each thread should loop indefinitely, taking tasks from the queue and executing them

• Use synchronization primitives to ensure thread safety

• Consider using a thread-safe data structure for the task queue, such as a concurrent queue

• Consider using a thread-s...read more

I will communicate the limitations of automation and suggest alternative solutions.

• Identify the specific task or process that cannot be automated

• Analyze the reasons why it cannot be automated

• Provide alternative solutions or workarounds

• Communicate the limitations and alternatives to the business stakeholders

Sort a stack without auxiliary space

• Use recursion to pop elements from stack and insert them in sorted order

• Compare the top element with the next element and swap if necessary

• Repeat until stack is sorted

End to end automation will be achieved through a systematic approach involving analysis, design, implementation, testing, and deployment.

• Identify the processes that can be automated

• Design a solution that integrates with existing systems

• Implement the automation using appropriate tools and technologies

• Test the automation thoroughly to ensure it meets requirements

• Deploy the automation and monitor its performance

• Continuously improve the automation to optimize efficiency

Shared and unique pointer implementation in C++

• Shared pointers allow multiple pointers to refer to the same object, automatically deleting the object when the last pointer is destroyed.

• Unique pointers allow only one pointer to refer to an object, automatically deleting the object when the pointer is destroyed.

• Shared pointers use reference counting to keep track of the number of pointers referring to an object.

• Unique pointers use move semantics to transfer ownership of an obje...read more

Yes, I have experience with hardware documentation.

• I have documented hardware installation and setup procedures.

• I have created user manuals for hardware products.

• I have worked with engineers to document hardware specifications and design.

• I have experience with CAD drawings and schematics.

• I have created troubleshooting guides for hardware issues.

Developed a web application for tracking and analyzing user behavior

• Used React.js for front-end development

• Implemented data visualization using D3.js

• Utilized Node.js and Express for back-end development

• Integrated with MongoDB for data storage

Yes, I have an electronics background.

• I have a Bachelor's degree in Electrical Engineering.

• I have worked on various electronics projects during my studies.

• I have experience with circuit design and troubleshooting.

• I am familiar with electronic components and their functions.

Implement a sorting algorithm to sort an unsorted array of strings without using inbuilt methods.

• Use a sorting algorithm like bubble sort, selection sort, or insertion sort to manually sort the array.

• Compare each element with the next one and swap them if they are in the wrong order.

• Repeat this process until the array is sorted.

• Example: ['banana', 'apple', 'cherry'] -> ['apple', 'banana', 'cherry']

U-boot hands off control to Linux kernel during boot process.

• U-boot loads Linux kernel image into memory

• U-boot sets up necessary parameters for Linux kernel

• U-boot passes control to Linux kernel by jumping to its entry point

• Linux kernel takes over and initializes system hardware