100+ Engineer- Customer Support Interview Questions and Answers

AC is alternating current that changes direction periodically, while DC is direct current that flows in one direction.

• AC changes direction periodically, while DC flows in one direction

• AC is commonly used in household appliances and power distribution systems

• DC is used in batteries and electronic devices like smartphones and laptops

A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction. A capacitor is a passive two-terminal electronic component that stores electrical energy in an electric field.

• Transformer works on the principle of electromagnetic induction, where changing current in one coil induces a voltage in another coil.

• Capacitor stores electrical energy in an electric field and releases it when needed.

• Transformer is used for stepp...read more

DNS resolves domain names to IP addresses. Firewall blocks unauthorized access to a network. Gateway connects networks.

• DNS stands for Domain Name System and translates domain names to IP addresses

• Firewall is a security system that monitors and controls incoming and outgoing network traffic

• Gateway is a network node that connects two different networks

• Examples of gateways include routers and switches

A motor is a device that converts electrical energy into mechanical energy. Its working principle is based on the interaction between a magnetic field and an electric current.

• Motors can be classified into different types such as DC motors, AC motors, stepper motors, etc.

• The working principle of a DC motor is based on the interaction between a magnetic field and an electric current, which produces a rotational motion.

• AC motors work on the principle of electromagnetic induction...read more

SMB stands for Server Message Block, a protocol used for file sharing and printer sharing in a network.

• SMB is used for sharing files and printers between computers in a network.

• It allows multiple users to access the same resources simultaneously.

• SMB operates on the application layer of the OSI model.

• It uses TCP/IP as the underlying transport protocol.

• SMB has evolved over the years and the latest version is SMB3.

• Examples of SMB implementations include Windows file sharing and ...read more

I have 5 years of experience in desktop support.

• 5 years of experience in providing desktop support to clients

• Proficient in troubleshooting hardware and software issues

• Skilled in remote desktop support and ticket management

• Experience in setting up and configuring desktops and laptops

• Familiarity with various operating systems such as Windows and macOS

To join a domain and assign DNS address, you need to access network settings and input the domain information.

• Access network settings on the computer

• Input the domain name and credentials to join the domain

• Assign DNS address either manually or through DHCP settings

Hardware refers to physical components of a computer system. Examples include CPU, RAM, motherboard, hard drive, and graphics card.

• Hardware refers to physical components of a computer system

• Examples include CPU, RAM, motherboard, hard drive, and graphics card

The industry is customer support for technical products and services.

• Provides assistance and troubleshooting for customers using technical products

• Resolves customer issues and inquiries through various communication channels

• Requires strong technical knowledge and problem-solving skills

• Examples: customer support for software companies, IT helpdesk for hardware manufacturers

Data recovery from HDD involves using specialized software and techniques to retrieve lost or corrupted data.

• Use data recovery software such as Recuva, EaseUS Data Recovery Wizard, or Disk Drill.

• Avoid writing new data to the HDD to prevent overwriting the lost data.

• Consult with data recovery experts or professionals for more complex cases.

• Consider sending the HDD to a data recovery service if software solutions fail.

• Create a backup of recovered data to prevent future loss.

To create a domain, you need to register a unique domain name and purchase it from a domain registrar.

• Choose a unique domain name that represents your brand or business

• Check if the domain name is available using a domain registrar

• Purchase the domain name from the registrar

• Set up DNS records to point the domain to your website or hosting provider

To configure MS Outlook, you need to add an email account and set up the server settings.

• Open Outlook and click on File

• Click on Add Account and enter your email address

• Enter your password and click on Connect

• If the account is not automatically configured, enter the server settings manually

• Test the account settings and click on Finish

MPLS stands for Multiprotocol Label Switching.

• MPLS is a protocol used in computer networks to improve the speed and efficiency of data transmission.

• It operates at the network layer of the OSI model and is used to route packets based on labels instead of IP addresses.

• MPLS allows for the creation of virtual private networks (VPNs) and traffic engineering.

• It provides quality of service (QoS) capabilities by prioritizing certain types of traffic.

• Example: MPLS is commonly used by ...read more

HR behaviour should be professional, ethical, and empathetic towards employees.

• HR should maintain confidentiality of employee information

• HR should be approachable and responsive to employee concerns

• HR should treat all employees fairly and without bias

• HR should adhere to company policies and legal regulations

• HR should provide support and resources for employee development and well-being

To pitch an idea to a customer, focus on the benefits, tailor the message to their needs, use visuals, and be confident.

• Highlight the key benefits of the idea and how it solves the customer's problem.

• Tailor the pitch to the customer's specific needs and preferences.

• Use visuals such as charts, graphs, or product demos to make the idea more tangible.

• Be confident in presenting the idea and address any potential concerns or objections.

• Provide real-life examples or case studies to...read more

Printer network connection and configuration involves setting up printers on a network and ensuring they function properly.

• Check network connectivity and ensure printer is connected to the correct network

• Configure printer settings such as IP address, subnet mask, and gateway

• Install necessary drivers and software on client machines

• Test printer functionality by printing a test page or document

Black box testing is a software testing technique that focuses on the functionality of the software without knowing its internal structure.

• Tests are performed based on the software requirements and specifications

• Testers do not have access to the source code or internal structure of the software

• The goal is to identify defects in the software's functionality

• Examples include functional testing, regression testing, and acceptance testing

White box testing is a testing technique that involves testing the internal structure of the software.

• It is also known as clear box testing or structural testing.

• It requires knowledge of the internal workings of the software.

• It involves testing individual components or modules of the software.

• It can be done manually or with the help of automated tools.

• Examples include code coverage testing and path testing.

Yes, I can install Windows.

• I have experience installing various versions of Windows.

• I am familiar with the installation process and requirements.

• I can troubleshoot installation issues if they arise.

Devices and their connection points

• Computers - USB ports, Ethernet ports

• Printers - USB ports, Ethernet ports, Wi-Fi

• Smartphones - USB ports, Bluetooth, Wi-Fi

• TVs - HDMI ports, USB ports, Ethernet ports

• Gaming consoles - HDMI ports, USB ports, Ethernet ports, Wi-Fi

Google Workspace is a cloud-based productivity suite that includes Gmail, Drive, Docs, Sheets, Slides, Meet, and more.

• Formerly known as G Suite

• Includes communication and collaboration tools

• Allows for real-time collaboration on documents

• Offers various pricing plans for businesses and individuals

Updating dim refers to updating the dimensions of a customer support engineer's knowledge and skills.

• Dim refers to the knowledge and skills of the customer support engineer.

• Updating dim involves continuously learning and staying updated with the latest technologies and solutions.

• Examples of updating dim include attending training sessions, reading technical articles, and participating in workshops.

Routing protocol is a set of rules that determine how data is transmitted between devices on a network.

• Routing protocols are used to facilitate communication between different networks.

• They determine the best path for data to travel from one network to another.

• Examples of routing protocols include OSPF, BGP, and RIP.

• Routing protocols can be classified as either interior gateway protocols (IGPs) or exterior gateway protocols (EGPs).

HTTP works on port 80 by default.

• HTTP (Hypertext Transfer Protocol) is the protocol used for transmitting data over the internet.

• Port 80 is the default port used for HTTP communication.

• However, HTTPS (HTTP Secure) uses port 443 by default.

• Other ports can also be used for HTTP communication, but they need to be specified explicitly.

• For example, if a website uses port 8080 for HTTP communication, the URL would be http://website.com:8080.

Advanced BIOS refers to the updated version of the Basic Input/Output System (BIOS) that provides more features and functionalities.

• Advanced BIOS offers more customization options for hardware settings.

• It can support larger hard drives and faster boot times.

• It can also provide better security features such as password protection and secure boot.

• Examples of advanced BIOS include UEFI (Unified Extensible Firmware Interface) and ACPI (Advanced Configuration and Power Interface).

Paste printing is a process of depositing solder paste onto a printed circuit board (PCB) for surface mount technology (SMT) assembly.

• It is a critical step in the SMT assembly process

• The paste is applied using a stencil or a jet printer

• The quality of paste printing affects the overall quality of the PCB assembly

• Factors affecting paste printing include viscosity, aperture size, and alignment

• Examples of paste printing defects include insufficient paste, bridging, and tombstonin...read more

IP addressing is a method of assigning unique numerical identifiers to devices connected to a network.

• IP addressing stands for Internet Protocol addressing.

• It is a numerical label assigned to each device connected to a network.

• It is used to identify and communicate with devices on a network.

• There are two types of IP addresses: IPv4 and IPv6.

• IPv4 addresses are 32-bit numbers and IPv6 addresses are 128-bit numbers.

A router is a networking device that forwards data packets between computer networks.

• Routers connect multiple networks together.

• They determine the best path for data packets to travel.

• Routers use routing tables to make forwarding decisions.

• They provide network address translation (NAT) to allow multiple devices to share a single public IP address.

• Routers can prioritize certain types of network traffic for better performance.

• Examples of routers include Cisco routers, TP-Link r...read more

Yes, troubleshooting involves identifying and resolving issues in a systematic manner.

• Troubleshooting is the process of identifying and resolving problems or issues.

• It involves gathering information about the issue, analyzing the data, and finding a solution.

• Common troubleshooting techniques include isolating the problem, testing possible solutions, and implementing fixes.

• Examples of troubleshooting tasks include fixing network connectivity issues, resolving software errors, ...read more

Yes, I have experience configuring IP addresses for network devices.

• I am familiar with configuring IP addresses for routers, switches, and firewalls.

• I have experience with both IPv4 and IPv6 addressing.

• I am comfortable using command line interfaces and GUIs to configure IP addresses.

• I understand subnetting and can configure IP addresses accordingly.

• I have troubleshooted IP address conflicts and connectivity issues.

• Example: Configured IP addresses for a network of 50 computers...read more

HR has the ability to recruit, train, develop, and manage employees to ensure they are productive and satisfied in their roles.

• Recruiting and hiring new employees

• Providing training and development opportunities

• Managing employee relations and performance

• Ensuring compliance with labor laws and regulations

• Creating and implementing HR policies and procedures

• Managing employee benefits and compensation

• Maintaining employee records and data

Strengths include problem-solving skills and technical knowledge. Weaknesses include impatience and lack of experience in certain areas.

• Strength: Strong problem-solving skills - able to quickly identify and resolve issues for customers

• Strength: Technical knowledge - able to troubleshoot complex technical problems effectively

• Weakness: Impatience - may rush through tasks without thoroughly addressing all aspects

• Weakness: Lack of experience in certain areas - may require additio...read more

Types of IP addresses include IPv4 and IPv6. IP addresses are segmented into network and host portions.

• IPv4 addresses consist of 4 sets of numbers separated by periods (e.g. 192.168.1.1)

• IPv6 addresses are longer and consist of 8 groups of 4 hexadecimal digits separated by colons (e.g. 2001:0db8:85a3:0000:0000:8a2e:0370:7334)

• IP addresses are segmented into network and host portions, with the network portion identifying the network and the host portion identifying a specific de...read more

PST and OST files are both used by Microsoft Outlook to store email data, but they differ in their location and usage.

• PST files are stored locally on a user's computer and can be used for archiving or backing up email data.

• OST files are used for offline access to email data and are stored on a server.

• PST files can be imported or exported to transfer email data between computers or accounts.

• OST files are automatically created when a user sets up an email account in Outlook and...read more

Interacting with people requires active listening, empathy, and clear communication.

• Practice active listening by giving your full attention and asking clarifying questions.

• Show empathy by acknowledging their feelings and perspective.

• Communicate clearly by using simple language and avoiding jargon.

• Be patient and respectful, even in difficult situations.

• Adapt your communication style to their personality and preferences.

• Use positive body language and tone of voice to convey ope...read more

Sorry, I am not sure who Shirley is and what function you are referring to.

NFS server is a network file system server that allows clients to access files over the network as if they were on the local machine.

• NFS stands for Network File System.

• It is a distributed file system protocol that allows a user on a client computer to access files over a network as if those files were on the local computer.

• The NFS server is responsible for managing the shared file system and making it available to clients.

• It is commonly used in Unix and Linux environments.

• Exa...read more

I have a strong sales record with consistent performance exceeding targets.

• Consistently met or exceeded sales targets

• Built strong relationships with customers to drive sales

• Utilized effective sales strategies to close deals

• Received recognition for top sales performance

• Exceeded sales goals by 20% in the last quarter

Warranty can be controlled by setting clear terms and conditions, tracking expiration dates, and providing excellent customer service.

• Establish clear terms and conditions for warranty coverage

• Track expiration dates to ensure timely service

• Provide excellent customer service to address warranty claims efficiently

• Implement a system for managing warranty claims and repairs

• Regularly review and update warranty policies to meet customer needs

An algorithm is a set of instructions designed to solve a specific problem or perform a specific task.

• An algorithm is a step-by-step procedure for solving a problem.

• It is a set of rules or instructions that a computer follows to solve a problem.

• Algorithms are used in programming, mathematics, and many other fields.

• Examples of algorithms include sorting algorithms, search algorithms, and encryption algorithms.

Allocation refers to the distribution or assignment of resources or tasks.

• Allocation can refer to the allocation of funds, personnel, or equipment.

• In engineering, allocation can refer to the allocation of tasks to different team members.

• Allocation can also refer to the allocation of memory or storage space in computer systems.

IPv4 is a protocol used to identify and locate devices on a network. WAN stands for Wide Area Network.

• IPv4 is a numerical label assigned to devices on a network to enable communication.

• WAN is a type of network that covers a broad area, such as a city or country.

• IPv4 addresses are 32-bit numbers written in decimal format, like 192.168.1.1.

• WANs connect multiple LANs together, allowing for communication over long distances.

Inverter converts DC power to AC power to run appliances during power outages.

• Inverter converts direct current (DC) power from batteries or solar panels to alternating current (AC) power.

• AC power is used to run household appliances during power outages.

• Inverter must be properly sized to handle the power requirements of the appliances connected to it.

• Some appliances may not work well with modified sine wave inverters, requiring pure sine wave inverters for proper operation.

A load cell is a transducer that converts force into an electrical signal.

• Load cells are commonly used in industrial applications to measure weight or force.

• They are often found in scales, industrial equipment, and testing machines.

• Load cells can be made from various materials such as steel, aluminum, or even piezoelectric crystals.

NAND gate can be tested using truth table method to verify its functionality.

• Create a truth table with all possible input combinations

• Apply each input combination to the NAND gate and observe the output

• Verify if the output matches the expected result based on NAND gate logic

• Use a multimeter to check for proper voltage levels at input and output pins

An algorithm is a set of instructions designed to solve a specific problem or perform a specific task.

• An algorithm is a step-by-step procedure for solving a problem.

• It can be represented using flowcharts, pseudocode, or programming languages.

• Examples of algorithms include sorting algorithms, search algorithms, and encryption algorithms.

IC testing involves functional and electrical tests to ensure proper operation.

• Perform functional tests to check if IC performs its intended function

• Conduct electrical tests to verify proper voltage and current levels

• Use specialized equipment like IC testers or multimeters for testing

• Check for any shorts or open circuits using continuity tests

• Verify IC datasheet specifications are met during testing