100+ Technical Associate Interview Questions and Answers

The task is to find a city 'X' from which all other cities can be reached in a given graph.

• Find the mother vertices in the graph.

• If there are multiple mother vertices, return the minimum value.

• If there are no mother vertices, return -1.

Check if a given array contains a valid triplet where two elements sum up to the third.

• Iterate through all possible triplets and check if any of the conditions are satisfied.

• Use nested loops to compare each element with every other element in the array.

• Handle cases where the same element is repeated multiple times in the array.

The question asks to determine if string 'R' can be obtained by scrambling string 'S' using certain operations.

• The length of both strings 'S' and 'R' should be the same.

• The operations can be applied recursively on the substrings of 'S'.

• If the length of 'S' is 1, the scrambling process stops.

• The strings only contain lowercase letters.

Reverse the given string word-wise while keeping the characters of each word in their original order.

• Split the input string by spaces to get individual words

• Reverse the order of the words in the resulting array

• Join the words back together with spaces in between

Calculate the sum of elements in a subarray of an infinite array constructed from a given array.

• Construct the infinite array by repeating the given array indefinitely

• For each query, calculate the sum of elements in the subarray from index L to R

• Return the sum modulo 10^9 + 7

Program to multiply two numbers without using * operator.

• Use a loop to add the first number to itself the second number of times.

• Use bitwise operators to perform multiplication.

• Use logarithms and exponents to perform multiplication.

• Use recursion to perform multiplication.

Different types of motors include DC, AC, stepper, servo, etc. Back EMF is present in both DC and AC motors.

• DC motors: brushed, brushless, series, shunt, compound

• AC motors: synchronous, asynchronous, induction

• Back EMF is the voltage generated in the opposite direction to the applied voltage

• Back EMF is present in both DC and AC motors

• Back EMF is used to control the speed of the motor

Yes, work permits are used in various industries to ensure safety and compliance.

• Work permits are documents that authorize individuals to perform specific tasks or access certain areas within a workplace.

• They are typically used in industries such as construction, manufacturing, oil and gas, and mining.

• Work permits outline the necessary precautions, procedures, and safety measures to be followed while performing the authorized work.

• Examples of work permits include hot work per...read more

I would first identify the root cause of the network issue, then prioritize fixing it based on impact, and communicate with stakeholders throughout the resolution process.

• Identify the root cause of the network issue by checking network logs and conducting network diagnostics.

• Prioritize fixing the issue based on the impact on business operations.

• Communicate with stakeholders, such as business owners and IT teams, to keep them informed about the issue and resolution progress.

• Im...read more

OOPs features include encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation: bundling of data and methods that operate on that data

• Inheritance: ability of a class to inherit properties and methods from a parent class

• Polymorphism: ability of objects to take on multiple forms or behaviors

• Abstraction: hiding of complex implementation details and providing a simplified interface

MVC web app creation process

• Choose a programming language and framework

• Create models to represent data

• Create views to display data

• Create controllers to handle user requests

• Configure routing to map URLs to controllers

• Test and debug the application

• Deploy the application to a web server

Abstraction is the process of hiding complex details and showing only the essential features of an object. Polymerization is the process of combining small molecules to form a larger molecule.

• Abstraction involves creating a simplified representation of something, focusing on the important details while hiding unnecessary details.

• Polymerization is a chemical process where small molecules called monomers are combined to form a larger molecule called a polymer.

• Examples of abstra...read more

Follow systematic steps to diagnose and resolve network issues effectively.

• Check physical connections: Ensure cables are securely connected and devices are powered on.

• Ping test: Use the ping command to check connectivity to a specific IP address or domain.

• Check IP configuration: Use 'ipconfig' (Windows) or 'ifconfig' (Linux) to verify correct IP settings.

• Examine network devices: Restart routers, switches, or modems to resolve temporary issues.

• Review firewall settings: Ensure ...read more

Telnet uses port number 23. It is used for remote login to a computer or server.

• Telnet uses port number 23 for communication.

• It is used for remote login to a computer or server.

• Telnet allows users to access a command-line interface on a remote host.

The challenge test in autocortanator depends on the specific product being tested.

• The challenge test is a method used to determine the effectiveness of a sterilization process.

• Autocortanator is a type of sterilization equipment used in the medical field.

• The challenge test for autocortanator will vary depending on the product being sterilized.

• Factors that may affect the challenge test include the type of microorganisms present and the intended use of the sterilized product.

Searching on Google involves complex algorithms, data retrieval, and ranking to deliver relevant results quickly.

• Google uses web crawlers to index billions of web pages.

• Search queries are processed using algorithms like PageRank to determine relevance.

• User intent is analyzed to provide personalized results based on search history.

• Results are ranked based on various factors, including keywords, site authority, and user engagement.

• Google's algorithms are constantly updated to i...read more

Entering a URL initiates a series of steps to retrieve and display the requested web page in the browser.

• 1. DNS Resolution: The browser checks the URL and queries a DNS server to translate the domain name into an IP address.

• 2. TCP Connection: A TCP connection is established with the server using the IP address, typically on port 80 (HTTP) or 443 (HTTPS).

• 3. HTTP Request: The browser sends an HTTP request to the server, asking for the specific resource (e.g., HTML page).

• 4. Serv...read more

Listen to their problem, empathize, offer solutions and follow up.

• Listen actively to their concerns and issues

• Empathize with their situation and show understanding

• Offer solutions that address their specific problem

• Follow up to ensure their issue has been resolved

Artificial intelligence is the simulation of human intelligence processes by machines.

• AI involves the development of algorithms and computer programs that can perform tasks that typically require human intelligence, such as visual perception, speech recognition, decision-making, and language translation.

• Machine learning is a subset of AI that involves training algorithms to learn from data and improve their performance over time.

• Deep learning is a subset of machine learning t...read more

A motor produces torque by creating a magnetic field that interacts with the current flowing through the motor's coils.

• The motor's coils are energized with an electrical current, which creates a magnetic field.

• The magnetic field interacts with the magnetic field of the motor's permanent magnets, causing the rotor to turn.

• The amount of torque produced by the motor is proportional to the strength of the magnetic field and the amount of current flowing through the coils.

• The dire...read more

Electric horn produces sound by using an electromagnet to vibrate a diaphragm.

• Electric current flows through the coil of an electromagnet.

• The magnetic field produced by the electromagnet attracts and repels a metal diaphragm.

• The diaphragm vibrates rapidly, producing sound waves.

• The sound waves are amplified by a horn or resonator.

• The pitch and volume of the sound can be adjusted by changing the frequency and amplitude of the electric current.

• Examples of electric horns include...read more

Transaction response codes are codes that indicate the status of a transaction.

• Transaction response codes are used in electronic payment systems to indicate the status of a transaction.

• These codes can indicate whether a transaction was approved, declined, or resulted in an error.

• Common transaction response codes include 00 for approved transactions, 05 for declined transactions, and 12 for invalid transactions.

• Transaction response codes can also provide additional information...read more

Students face challenges such as lack of motivation, distractions, difficulty understanding concepts, time management issues, and test anxiety.

• Lack of motivation can lead to procrastination and poor academic performance.

• Distractions from technology, social media, or personal issues can hinder focus and productivity.

• Difficulty understanding complex concepts or topics can result in frustration and lower grades.

• Time management issues can lead to poor study habits and last-minute...read more

Change parts in an automatic cartoning machine using change parts, which are specialized components designed for specific product sizes.

• Change parts are custom-designed for different product dimensions.

• Examples include adjustable guides, carton holders, and sealing mechanisms.

• They ensure smooth operation and quick changeover between products.

• Proper maintenance of change parts is crucial for machine efficiency.

The time taken for cortanator setting varies depending on the complexity of the system.

• The time taken for cortanator setting can range from a few hours to several days.

• Factors that affect the time taken include the size and complexity of the system, the level of customization required, and the availability of resources.

• For a simple system, the cortanator setting may take only a few hours, while a more complex system may take several days.

• It is important to ensure that the cor...read more

To import matalib, use the 'import' keyword in Python. This library is used for mathematical operations and data visualization.

• Use 'import matplotlib.pyplot as plt' to import matplotlib for data visualization

• Use 'import numpy as np' to import numpy for mathematical operations

• Matplotlib is commonly used for creating plots, charts, and graphs in Python

Implementing strategies to enhance ticket SLAs involves proactive management, effective communication, and continuous improvement.

• Prioritize tickets based on urgency and impact, ensuring critical issues are addressed first.

• Utilize automation tools to streamline ticket routing and responses, reducing resolution time.

• Regularly train support staff on best practices and new technologies to improve efficiency.

• Implement a knowledge base for common issues, allowing quicker resolutio...read more