10+ Software Development Engineer Test Interview Questions and Answers

A technical interview question about software development and engineering.

• Software is a set of instructions that tell a computer what to do.

• Framework is a set of rules or guidelines that developers follow to create software.

• Characteristics of software include functionality, reliability, usability, efficiency, maintainability, and portability.

• SDLC models include Waterfall, Agile, Spiral, and V-Model.

• Debugging is the process of finding and fixing errors in software.

• Validation e...read more

Code to return list of tuples with elements summing up to given sum

• Iterate through the list and check for pairs of elements whose sum equals the given sum

• Add the pairs to a list of tuples and return the list

• Use a nested loop to compare each element with all other elements in the list

Computer program is a set of instructions that performs a specific task, while computer software is a collection of programs, data, and instructions.

• A computer program is a single set of instructions that performs a specific task, such as a calculator program

• Computer software is a collection of programs, data, and instructions, such as Microsoft Office

• A computer program is a part of computer software, but not all computer software is a computer program

Sum all digits until single digit is reached

• Iterate through each digit and add them together

• Repeat the process until the sum is a single digit

• Example: For input 1234, sum = 1+2+3+4 = 10, then sum = 1+0 = 1

Use a round-robin tournament scheduling algorithm with a matrix data structure.

• Create a matrix where rows represent teams and columns represent opponents.

• Fill in the matrix such that each team plays every other team exactly once.

• Use the round-robin tournament scheduling algorithm to generate the match schedule.

• Ensure that each team plays with every other team by checking the matrix for any missing matches.

Python is a popular programming language known for its simplicity and readability. Lists in Python are versatile data structures that can hold multiple items of different types.

• Python is widely used in software development due to its ease of use and readability.

• Lists in Python are ordered collections of items, which can be of different data types.

• Lists can be modified, appended, sorted, and sliced in Python.

• Example: list_example = [1, 'apple', True, 3.14]

Prints elements of a matrix in a spiral order, starting from the top-left corner and moving clockwise.

• Initialize boundaries: top, bottom, left, right.

• Iterate while top <= bottom and left <= right.

• Traverse from left to right along the top row, then increment top.

• Traverse from top to bottom along the right column, then decrement right.

• Traverse from right to left along the bottom row, then decrement bottom.

• Traverse from bottom to top along the left column, then increment left.

• Re...read more

Code to check if given string of parentheses is balanced or not.

• Use a stack to keep track of opening parentheses

• If a closing parenthesis is encountered, check if the top of stack is its corresponding opening parenthesis

• If stack is empty or top of stack is not the corresponding opening parenthesis, return false

• If all parentheses are balanced, return true

Implement a replace function for the String class.

• Create a new string variable to store the result

• Iterate through the original string and check for the substring to be replaced

• Replace the substring with the new substring in the result string

Aveva is a global engineering and industrial software company.

• Provides software solutions for industries like oil and gas, power, marine, and more

• Offers products for engineering, operations, and performance management

• Has offices in over 40 countries and serves customers in over 80 countries

Designed a microservices architecture for a web application

• Used Docker containers for each microservice

• Implemented API Gateway for routing requests

• Utilized Kubernetes for orchestration

• Separated concerns using a combination of RESTful APIs and message queues

Collection framework is a set of classes and interfaces that provide a way to store and manipulate groups of objects.

• It includes interfaces like List, Set, and Map

• It provides implementations like ArrayList, HashSet, and HashMap

• It allows for easy manipulation of data structures and efficient searching and sorting

• Example: List<String> names = new ArrayList<>(); names.add("John"); names.add("Jane");

• Example: Map<String, Integer> ages = new HashMap<>(); ages.put("John", 30); ages....read more

Exceptions and waits are important concepts in Selenium for handling errors and synchronization.

• Exceptions are used to handle errors that occur during test execution.

• Selenium provides various types of waits like implicit, explicit, and fluent waits to synchronize test execution with the application.

• Implicit waits wait for a certain amount of time before throwing an exception if the element is not found.

• Explicit waits wait for a certain condition to be met before proceeding wi...read more

Test cases for a lift

• Test if the lift moves up and down

• Test if the lift stops at each floor

• Test if the lift door opens and closes properly

• Test if the lift can handle maximum weight capacity

• Test if the emergency stop button works

• Test if the lift can handle power failure

• Test if the lift has proper ventilation and lighting

This program prints a specific pattern using nested loops in a programming language.

• Use nested loops: Outer loop for rows, inner loop for columns.

• Example pattern: For n=5, print: 1 12 123 1234 12345

• Adjust loops for different patterns, e.g., stars or numbers.

• Consider edge cases: What if n=0 or n<0?

Reversing a string involves rearranging its characters in the opposite order, a common task in programming.

• Using Built-in Functions: In Python, you can reverse a string using slicing: `reversed_string = original_string[::-1]`.

• Using Loops: You can reverse a string by iterating through it in reverse order: `reversed_string = ''.join(original_string[i] for i in range(len(original_string)-1, -1, -1))`.

• Using Stack: Push each character onto a stack and then pop them off to get the ...read more