20+ IT Desktop Support Engineer Interview Questions and Answers

RAM is a type of computer memory that stores data temporarily for quick access by the CPU.

• RAM stands for Random Access Memory

• It is used to temporarily store data that the CPU needs to access quickly

• The more RAM a computer has, the faster it can perform tasks

• RAM is volatile memory, meaning it loses its contents when the computer is turned off

• Examples of RAM include DDR3 and DDR4

To fix VPN issues, check for connectivity, authentication, and configuration errors.

• Check if the VPN client is connected to the internet.

• Verify the username and password for authentication.

• Ensure the VPN configuration is correct.

• Check for any firewall or antivirus blocking the VPN connection.

• Try restarting the VPN client or the device.

• Update the VPN client software if necessary.

I am a skilled IT Desktop Support Engineer with expertise in DNS, DHCP, Active Directory, IP addresses, SLA, and MAC addresses.

• DNS stands for Domain Name System, used to translate domain names to IP addresses.

• DHCP stands for Dynamic Host Configuration Protocol, assigns IP addresses to devices on a network.

• Active Directory is a directory service used by Microsoft Windows domain networks to store information about network resources.

• An IP address is a unique numerical label assi...read more

To fix internet connection issues, troubleshoot the router, check network settings, reset TCP/IP, and update drivers.

• Check if the router is properly connected and restart it if necessary

• Verify network settings and ensure correct IP configuration

• Reset TCP/IP stack using command prompt

• Update network drivers to the latest version

A motherboard is the main circuit board in a laptop that connects all components. Desktop support engineers provide technical assistance for desktop computers. A server is a computer or software that provides functionality for other programs or devices.

• Motherboard in a laptop connects components like CPU, RAM, and storage

• Desktop support engineers troubleshoot and maintain desktop computers for users

• Servers provide functionality for other programs or devices, such as hosting w...read more

Hardware issues can be found through various methods including hardware diagnostics, visual inspection, and software testing.

• Use hardware diagnostics tools to identify issues with specific components

• Perform visual inspection to check for physical damage or loose connections

• Run software tests to identify issues with drivers or other software-related problems

DNS is a system that translates domain names to IP addresses, while DHCP is a protocol that assigns IP addresses to devices on a network.

• DNS stands for Domain Name System and is used to translate domain names (e.g. www.google.com) to IP addresses (e.g. 172.217.3.100).

• DHCP stands for Dynamic Host Configuration Protocol and is used to automatically assign IP addresses, subnet masks, gateway addresses, and other network configuration parameters to devices on a network.

• DNS is ess...read more

IP address is used to identify a device on a network, while MAC address is a unique identifier assigned to network interfaces for communications at the data link layer.

• IP address is a logical address assigned to a device to identify it on a network

• MAC address is a physical address embedded in network interface hardware

• IP address can be changed or reassigned, while MAC address is usually hardcoded and unique

• Example: IP address - 192.168.1.1, MAC address - 00:1A:2B:3C:4D:5E

To change boot preference, access BIOS settings and modify the boot order.

• Restart the computer and press the appropriate key (e.g. F2, Del) to enter BIOS

• Navigate to the Boot menu in BIOS settings

• Change the boot order by moving the desired boot device to the top of the list

• Save the changes and exit BIOS settings

The OS model refers to the structure and design of an operating system.

• The OS model defines how the operating system interacts with hardware and software components.

• It includes components like the kernel, device drivers, file system, and user interface.

• Different OS models include monolithic, microkernel, and hybrid models.

• Examples of OS models are Windows NT (hybrid), Linux (monolithic), and QNX (microkernel).

Outlook is a popular email client and personal information manager developed by Microsoft.

• Outlook is used for sending, receiving, and organizing emails.

• It also includes features like calendar management, task management, and contact management.

• Outlook can be accessed through desktop applications, web browsers, and mobile devices.

• It supports various email protocols such as POP, IMAP, and Exchange ActiveSync.

• Outlook offers advanced features like email filtering, rules, and auto...read more

SMPC stands for Secure Multi-Party Computation, a cryptographic technique that allows multiple parties to jointly compute a function over their inputs while keeping those inputs private.

• SMPC allows multiple parties to collaborate on computing a function without revealing their private inputs.

• It ensures privacy and security by encrypting inputs and only revealing the final result.

• Examples of SMPC applications include secure auctions, private data analysis, and collaborative ma...read more

Firewall security is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

• Acts as a barrier between a trusted internal network and untrusted external network

• Filters network traffic based on set rules to prevent unauthorized access

• Can be hardware-based or software-based

• Examples include Cisco ASA, Palo Alto Networks, and Windows Firewall

iMac is a line of all-in-one desktop computers designed and marketed by Apple Inc.

• iMac is known for its sleek design and high-quality display.

• It runs on macOS operating system.

• To use iMac, simply plug it in, turn it on, and follow the on-screen setup instructions.

• You can customize the desktop layout, install software, connect to the internet, and perform various tasks like browsing, emailing, and multimedia editing.

Active Directory is a directory service developed by Microsoft for Windows domain networks.

• Centralized database for managing network resources

• Stores information about users, computers, and other network objects

• Allows administrators to control access and permissions

• Facilitates single sign-on for users across network services

Service desk is a centralized point of contact for users to get help with IT issues and requests.

• Provides technical support and assistance to users

• Handles IT incidents and service requests

• Logs and tracks issues in a ticketing system

• Resolves issues or escalates to appropriate teams

• Communicates with users regarding status and resolution

• May provide remote or on-site support

• Examples: IT helpdesk, IT service desk

To circuits the smpcs, you need to understand the concept of SMP/E (System Modification Program/Extended) in mainframe systems.

• Understand the SMP/E process for installing, updating, and maintaining software in mainframe systems.

• Learn how to define and manage software components, zones, and environments in SMP/E.

• Follow best practices for resolving SMP/E errors and troubleshooting installation issues.

• Utilize SMP/E tools and utilities effectively for managing software changes an...read more

Ms Outlook is a popular email client and personal information manager developed by Microsoft.

• Email client and personal information manager

• Developed by Microsoft

• Used for sending and receiving emails, managing calendars, tasks, contacts, etc.

Public IP address is a unique address provided by an Internet Service Provider (ISP) to identify a device on the internet.

• Public IP addresses are used to communicate over the internet

• They are assigned by ISPs and are unique to each device

• Public IP addresses can be static or dynamic

• Example: 203.0.113.1

Private IP addresses are reserved for use within a private network and are not routable on the public internet.

• Private IP addresses are used within a local network to identify devices.

• They are not accessible from the internet.

• Common private IP address ranges include 192.168.x.x, 172.16.x.x - 172.31.x.x, and 10.x.x.x.

The display issue in the system refers to any problem related to the visual output on the screen.

• Check the physical connections between the computer and the monitor.

• Ensure that the monitor is powered on and properly configured.

• Update or reinstall the graphics driver.

• Adjust the display settings in the operating system.

• Test the monitor on another computer to rule out hardware issues.