100+ Engineer- Customer Support Interview Questions and Answers

Remaining calm and empathetic, I would listen to the customer, apologize for their frustration, and assure them that I am there to help.

• Stay calm and composed

• Listen actively to the customer's concerns

• Apologize sincerely for their frustration

• Assure them that their issue will be resolved

• Avoid taking their profanity personally

• Offer solutions or alternatives

• If necessary, escalate the issue to a supervisor

50 Hz refers to a frequency of 50 cycles per second, commonly used in electrical systems.

• 50 Hz means there are 50 cycles of alternating current per second

• It is a standard frequency used in many countries for power generation and distribution

• In the context of electrical systems, 50 Hz is the frequency at which the voltage changes direction

• Higher frequencies like 60 Hz are used in some other regions such as North America

Transformers are used to step up or step down voltage for efficient transmission and distribution of electricity.

• Transformers help in increasing or decreasing voltage levels as needed for efficient transmission.

• Higher voltage reduces energy loss during long distance transmission.

• Lower voltage is safer for distribution to homes and businesses.

• Transformers also isolate the electrical circuits for safety and protection.

• Examples include step-up transformers at power plants and st...read more

Software coding involves writing instructions in programming languages to create computer programs.

• Software coding is the process of writing instructions that a computer can understand and execute.

• Programming languages are used to write these instructions, such as Python, Java, C++, etc.

• Coding involves breaking down a problem into smaller steps and writing code to solve each step.

• Programmers use various tools and software development environments to write and test their code....read more

Voltage is stepped up at the source for efficient long-distance transmission and stepped down at distribution centers for safe delivery to consumers.

• Step up voltage at source reduces energy loss during long-distance transmission

• Higher voltage allows for more efficient power transfer over long distances

• Step down voltage at distribution centers ensures safe delivery to consumers

• Lower voltage is safer for use in homes and businesses

Recently attended breakdown vehicle had a faulty alternator. Resolved by replacing the alternator.

• The vehicle had a problem with the alternator.

• The issue was resolved by replacing the faulty alternator.

• Ensured proper installation and testing of the new alternator.

• Provided customer with instructions on how to prevent similar issues in the future.

The operating system is the software that manages computer hardware and software resources.

• The operating system provides a user interface for interacting with the computer.

• It manages memory, processes, and tasks.

• It controls input and output devices.

• It provides file management and storage capabilities.

• It ensures security and protection of data.

• Examples of operating systems include Windows, macOS, Linux, and Android.

Different diagnostic tools are used for HP, Dell, and Lenovo for troubleshooting hardware and software issues.

• HP has its own hardware diagnostic tool called HP PC Hardware Diagnostics.

• Dell has a built-in diagnostic tool called Dell Diagnostics.

• Lenovo has a diagnostic tool called Lenovo Solution Center.

• HP and Dell also have software diagnostic tools for troubleshooting software issues.

• HP has HP Support Assistant and Dell has Dell SupportAssist.

• Lenovo has Lenovo System Update f...read more

New server technologies include virtualization, cloud computing, and hyper-converged infrastructure. Installation involves hardware setup, OS installation, and configuration.

• Virtualization allows multiple virtual servers to run on a single physical server, increasing efficiency and reducing costs.

• Cloud computing involves using remote servers to store, manage, and process data, providing scalability and flexibility.

• Hyper-converged infrastructure combines storage, computing, an...read more

Shirtless for Excel and keyboard for typing is not applicable.

• There is no specific dress code for using Excel or typing on a keyboard.

• However, it is recommended to wear comfortable clothing to avoid distractions.

• Proper posture and ergonomics are more important for long-term health than clothing choices.

A MAC address is a unique identifier assigned to a network interface controller for use as a network address in communications within a network segment.

• MAC stands for Media Access Control

• It is a 48-bit address

• It is used to uniquely identify devices on a network

• A router can have multiple MAC addresses, one for each interface

• MAC addresses are usually represented in hexadecimal format

• Example: 00:1A:2B:3C:4D:5E

Some latest programming languages include Rust, Kotlin, Swift, and TypeScript.

• Rust is a systems programming language that emphasizes safety and performance.

• Kotlin is a statically typed language that runs on the Java Virtual Machine and is used for Android app development.

• Swift is a programming language developed by Apple for iOS, macOS, watchOS, and tvOS development.

• TypeScript is a superset of JavaScript that adds optional static typing and other features.

Troubleshooting steps for a system not powering on

• Check power source and connections

• Inspect power supply unit for any issues

• Test with a different power cable or outlet

• Check for any visible damage to the system components

• Reset BIOS settings if necessary

SMPS is a type of power supply that efficiently converts electrical power by switching the input voltage on and off.

• SMPS is commonly used in electronic devices to provide a stable and efficient power supply.

• It operates by rapidly switching the input voltage on and off at a high frequency.

• This switching action allows SMPS to regulate the output voltage and current levels.

• SMPS are smaller and lighter than traditional linear power supplies.

• Examples of devices that use SMPS inclu...read more

Hardware of a computer refers to the physical components that make up a computer system.

• Hardware includes components such as the motherboard, CPU, RAM, hard drive, and graphics card.

• It also includes peripherals like the keyboard, mouse, and monitor.

• Hardware can be categorized into internal and external components.

• Internal components are housed inside the computer case, while external components are connected externally.

• Understanding hardware is essential for troubleshooting a...read more

GPT allows up to 128 partitions.

• GPT stands for GUID Partition Table.

• It is a newer partitioning scheme compared to MBR.

• GPT allows up to 128 partitions.

• Each partition is identified by a unique GUID.

• GPT is required for disks larger than 2 TB.

SSD stands for Solid State Drive. It is a type of storage device that uses NAND-based flash memory to store data.

• SSDs perform various operations such as reading, writing, erasing, and wear leveling.

• SSDs are faster and more reliable than traditional hard disk drives (HDDs).

• SSDs have no moving parts, which makes them less prone to mechanical failure.

• SSDs are more expensive than HDDs but offer better performance and durability.

• SSD and SDD are the same thing. There is no differen...read more

To troubleshoot a heating issue, I would start by checking the thermostat settings and air filters.

• Check thermostat settings and ensure they are set to the desired temperature

• Check air filters and replace if dirty or clogged

• Check for any blockages in the air ducts

• Inspect the heating system for any visible damage or malfunctions

• If necessary, call a professional HVAC technician for further diagnosis and repair

The computer desktop name can be found on the first screen.

• Look for the name on the top left or right corner of the screen.

• Check the taskbar for the name of the desktop.

• Open the settings and look for the name under 'System Information'.

On-grid refers to being connected to the main electrical grid, while off-grid refers to being self-sufficient and not connected to the grid.

• On-grid systems rely on the main electrical grid for power supply.

• Off-grid systems generate their own power through sources like solar panels or wind turbines.

• On-grid systems are more common in urban areas where electricity is readily available.

• Off-grid systems are often used in remote locations where connecting to the main grid is not fe...read more

Microinverters are devices used in solar energy systems to convert DC power generated by solar panels into AC power for use in homes and businesses.

• Microinverters are typically installed on each individual solar panel, as opposed to a central inverter for the entire system.

• They allow for maximum power point tracking (MPPT) at the panel level, optimizing energy production.

• Microinverters can improve system efficiency, especially in cases where panels may be shaded or have diffe...read more

Blue screen and black screen errors are system errors that occur when the operating system crashes or stops working.

• Blue screen error, also known as the Blue Screen of Death (BSOD), is a system error that occurs when the operating system encounters a critical error and cannot recover.

• Black screen error is a system error that occurs when the operating system crashes and the screen turns black, indicating that the system is not responding.

• Both errors can be caused by hardware o...read more

To provide better claim settlement within less time, we can streamline the claims process, automate repetitive tasks, and improve communication with customers.

• Streamline the claims process by implementing efficient workflows and reducing manual intervention

• Automate repetitive tasks such as data entry and document processing to speed up claim settlement

• Improve communication with customers by providing regular updates on claim status and offering easy access to support channels...read more

2mV/V or 3mV/V refers to the sensitivity of a strain gauge sensor.

• mV/V stands for millivolts per volt, indicating the output voltage change per unit change in input

• 2mV/V means the sensor output voltage changes by 2 millivolts for every volt of excitation voltage

• 3mV/V means the sensor output voltage changes by 3 millivolts for every volt of excitation voltage

Sensitivity of a load cell refers to the smallest change in weight that can be accurately detected by the load cell.

• Sensitivity is typically measured in mV/V or % of full scale output per unit of weight change.

• Higher sensitivity means the load cell can detect smaller weight changes.

• Factors affecting sensitivity include material properties, design, and calibration.

• Example: A load cell with a sensitivity of 2 mV/V can accurately detect a weight change of 2 grams for every 1 kg ...read more

Power is the rate at which work is done or energy is transferred. A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction. Step up transformer increases voltage while step down transformer decreases voltage. AC stands for alternating current and DC stands for direct current.

• Power is the rate at which work is done or energy is transferred

• Transformer is a device that transfers electrical energy between circuits t...read more

We handle customer interactions through various channels and prioritize effective communication.

• We have a dedicated customer support team that is trained to handle customer inquiries and concerns.

• We use multiple communication channels such as phone, email, and live chat to interact with customers.

• We prioritize active listening and empathy to understand customer needs and provide appropriate solutions.

• We maintain a knowledge base to quickly access information and provide accur...read more

IPv6 is the latest version of Internet Protocol. There are no classes in IPv6.

• IPv6 is a 128-bit address scheme, compared to IPv4's 32-bit address scheme.

• IPv6 addresses are written in hexadecimal notation.

• IPv6 uses a different header format than IPv4.

• Unlike IPv4, there are no classes in IPv6 addressing.

I am proficient in 5 programming languages.

• Proficient in Java, Python, C++, JavaScript, and SQL

• Experience in developing web applications using JavaScript and Python frameworks

• Familiarity with database management using SQL

• Ability to quickly learn and adapt to new programming languages

• Strong problem-solving skills

There are two main types of SSDs: SATA and NVMe.

• SATA SSDs are the most common and use the same interface as traditional hard drives.

• NVMe SSDs are faster and use a different interface that connects directly to the motherboard.

• Other types of SSDs include PCIe SSDs and U.2 SSDs.

• PCIe SSDs use the PCIe interface and are commonly used in high-performance gaming PCs.

• U.2 SSDs are similar to NVMe SSDs but use a different physical connector.

• SSDs can also be classified by their form fac...read more

OST and PST are file formats used by Microsoft Outlook to store email, contacts, and other data.

• OST stands for Offline Storage Table and is used by Outlook to store a copy of mailbox data from an Exchange server.

• OST files allow users to access their mailbox data even when they are not connected to the server.

• PST stands for Personal Storage Table and is used by Outlook to store email, contacts, calendar items, and other data locally on a user's computer.

• PST files are typically...read more

I have 5 years of experience in hardware support.

• I have worked as a hardware support technician for 5 years.

• During this time, I have gained experience in troubleshooting hardware issues, replacing faulty components, and performing routine maintenance.

• I have also worked with a variety of hardware, including desktops, laptops, servers, and peripherals.

• I am familiar with both Windows and Mac operating systems, and have experience with hardware and software installation and confi...read more

IIS is a web server software created by Microsoft for hosting websites and web applications.

• IIS stands for Internet Information Services.

• It is a web server software developed by Microsoft.

• It is used for hosting websites and web applications on Windows servers.

• It supports various protocols such as HTTP, HTTPS, FTP, SMTP, etc.

• It provides features like authentication, authorization, caching, logging, etc.

• It can be managed through a graphical user interface (GUI) or command-line ...read more

Configuring MS Outlook involves setting up email accounts, server settings, and personal preferences.

• Open Outlook and click on File

• Click on Add Account and enter your email address

• Enter your password and follow the prompts to complete setup

• To configure server settings, click on File > Account Settings > Account Settings

• Select your email account and click on Change

• Enter the incoming and outgoing server settings provided by your email provider

• To customize personal preferences, ...read more

SQL database management system is a software used to manage and organize data stored in relational databases.

• SQL stands for Structured Query Language

• It allows users to create, modify, and delete databases and their tables

• It provides a way to retrieve and manipulate data stored in the database

• Examples of SQL database management systems include MySQL, Oracle, and Microsoft SQL Server

To check earthing on power supply, use a multimeter to measure the resistance between the earth terminal and a known earth point.

• Use a multimeter set to resistance mode

• Connect one probe to the earth terminal of the power supply

• Connect the other probe to a known earth point (e.g. a metal water pipe)

• A low resistance reading indicates good earthing

• A high resistance reading indicates poor earthing

There is only one word 'resolve' with multiple meanings, but 'resolution' has different meanings depending on the context.

• Resolve can mean to find a solution to a problem or to make a firm decision.

• Resolution can mean the quality of being determined or the number of pixels in an image.

• In customer support, resolving an issue means finding a solution to the customer's problem.

• In computer graphics, resolution refers to the number of pixels in an image.

• In medical terms, resolutio...read more

I will check the connections and troubleshoot the hardware and software components.

• Check if the monitor is properly connected to the computer

• Check if the monitor is turned on and the brightness is adjusted

• Check if the graphics card is properly installed and updated

• Check if the cables are not damaged or loose

• Check if the computer is booting up properly

• Run diagnostic tests to identify the issue

Examples of AS sites include data centers, internet service providers, and cloud computing providers.

• AS sites are organizations that provide internet connectivity to end-users

• They are identified by their Autonomous System (AS) number

• Examples include Amazon Web Services (AS16509), Google (AS15169), and Microsoft (AS8075)

Semiconductors are materials that have electrical conductivity between that of a conductor and an insulator.

• Semiconductors have a band gap that allows them to conduct electricity under certain conditions.

• Common semiconductor materials include silicon, germanium, and gallium arsenide.

• Semiconductors are used in electronic devices such as transistors, diodes, and integrated circuits.

Induction motors use electromagnetic induction to generate torque, while servo motors use feedback control to achieve precise motion control.

• Induction motors are commonly used in household appliances and industrial machinery

• Servo motors are used in robotics, CNC machines, and other precision applications

• Induction motors have a simpler design and are less expensive than servo motors

• Servo motors have higher accuracy and can maintain precise control over position, velocity, and ...read more

Elevators use various safety mechanisms to prevent accidents.

• Emergency brakes are installed to stop the elevator in case of a malfunction.

• Door interlocks prevent the doors from opening unless the elevator is at a stop.

• Overload sensors prevent the elevator from moving if it exceeds its weight limit.

• Safety edges on the doors detect obstructions and stop the doors from closing.

• Firefighters' emergency operation allows firefighters to take control of the elevator during an emergen...read more

To create a PST file and add data, follow these steps:

• Open Microsoft Outlook and click on 'New Items' in the 'Home' tab

• Select 'More Items' and then 'Outlook Data File'

• Choose a location and name for the PST file and click 'OK'

• To add data, drag and drop emails, contacts, or other items into the PST file

• Alternatively, go to 'File' > 'Open & Export' > 'Import/Export' and follow the prompts to import data into the PST file

Revenue from new customers can be generated through various strategies such as offering discounts, promotions, referral programs, and upselling.

• Offer discounts or promotions to attract new customers

• Implement a referral program to incentivize existing customers to refer new ones

• Upsell additional products or services to new customers

• Provide excellent customer support to retain new customers and encourage repeat business

Components of an electronic weighing scale include load cells, display unit, microcontroller, and power supply.

• Load cells: convert the force of the weight into an electrical signal

• Display unit: shows the weight measurement to the user

• Microcontroller: processes the signal from the load cells and controls the display

• Power supply: provides the necessary power for the scale to function

C++ is an extension of C language with object-oriented programming features.

• C++ supports object-oriented programming while C does not.

• C++ has more advanced features like templates, exceptions, and namespaces.

• C++ is more complex and harder to learn than C.

• C++ is used for developing system software, games, and applications.

• C is used for developing operating systems, embedded systems, and device drivers.

Java and C are both programming languages, but differ in syntax, usage, and platform compatibility.

• Java is an object-oriented language, while C is a procedural language.

• Java is platform-independent, while C is platform-dependent.

• Java has automatic memory management, while C requires manual memory management.

• Java has a larger standard library than C.

• C is faster and more efficient than Java for certain tasks, such as system programming.

• Java is commonly used for web development,...read more