NR Technoserve Desktop Support Engineer L1 Interview Questions and Answers

An IP address is a unique identifier assigned to devices on a network. There are two types of IP addresses: IPv4 and IPv6.

• IP address stands for Internet Protocol address

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

• IPv4 addresses are 32-bit and represented in dotted decimal notation (e.g. 192.168.0.1)

• IPv6 addresses are 128-bit and represented in hexadecimal notation (e.g. 2001:0db8:85a3:0000:000

Ping command is a network utility used to test the reachability of a host on an Internet Protocol (IP) network.

• Ping sends an ICMP echo request to the target host and waits for a response.

• It measures the round-trip time for messages sent from the originating host to a destination computer.

• It can also be used to determine the number of hops between two hosts.

• Ping is commonly used to troubleshoot network connectivity issu

Antivirus is a software program designed to prevent, detect, and remove malicious software from a computer system.

• Antivirus software scans files and directories for any malware or suspicious patterns.

• It uses various techniques like signature-based detection, behavioral analysis, and heuristics to identify and remove viruses.

• Some popular antivirus software in the market are Norton, McAfee, Kaspersky, Avast, and AVG.

BSOD stands for Blue Screen of Death, a Windows error screen displayed when a system encounters a critical error. Networking refers to the practice of connecting computers and other devices to share resources. PST and OST files are used in Microsoft Outlook to store email data. Outlook is an email client developed by Microsoft.

• BSOD is a Windows error screen that appears when a critical system error occurs.

• Networking in...read more

A printer is a device that produces text or graphics on paper or other media.

• Printers can be connected to computers or networks to produce physical copies of digital documents.

• There are different types of printers such as inkjet, laser, and dot matrix printers.

• Printers can be used for printing documents, photos, labels, and more.

• Common printer manufacturers include HP, Canon, Epson, and Brother.

RAM is a volatile memory used for temporary storage while EEPROM is a non-volatile memory used for permanent storage.

• RAM stands for Random Access Memory and is used for temporary storage of data and instructions while the computer is running.

• EEPROM stands for Electrically Erasable Programmable Read-Only Memory and is used for permanent storage of data that needs to be retained even when the power is turned off.

• RAM is v...read more

To resolve system slow issue, check for malware, clear cache, update drivers, and increase RAM.

• Scan for malware and viruses using antivirus software

• Clear cache and temporary files

• Update drivers for hardware components

• Increase RAM if possible

• Disable unnecessary startup programs

• Defragment hard drive

• Check for overheating and clean the system if necessary

VGA stands for Video Graphics Array.

• VGA is a standard video connection used to connect a computer to a monitor or display.

• It is an analog video signal that carries red, green, and blue color information.

• VGA cables have 15 pins and are commonly used for older computer systems.

• VGA cables are gradually being replaced by digital connections like HDMI and DisplayPort.

CMOS stands for Complementary Metal-Oxide-Semiconductor.

• CMOS is a type of semiconductor technology used in microprocessors, microcontrollers, and other digital logic circuits.

• It is known for its low power consumption and high noise immunity.

• CMOS is commonly used in devices such as computers, smartphones, and digital cameras.

• The CMOS battery on a computer motherboard is responsible for maintaining the system clock and o...read more

CMOS is a type of semiconductor technology.

• CMOS stands for Complementary Metal-Oxide-Semiconductor.

• It is widely used in digital circuits and microprocessors.

• It consumes very low power and generates less heat compared to other technologies.

• Examples of CMOS-based devices include smartphones, laptops, and digital cameras.

BIOS stands for Basic Input/Output System. It is a firmware that initializes hardware components during boot-up and provides a runtime interface for operating systems.

• BIOS is responsible for performing a Power-On Self Test (POST) to check if all hardware components are functioning properly.

• It provides a runtime interface for the operating system to communicate with the hardware components.

• BIOS settings can be accessed ...read more

CPU stands for Central Processing Unit, which is the primary component of a computer that performs most of the processing.

• CPU is also known as the brain of the computer

• It is responsible for executing instructions and performing calculations

• CPU speed is measured in GHz

• Examples of popular CPU brands include Intel and AMD

APIPA stands for Automatic Private IP Addressing. It is a feature in Windows that allows a computer to automatically assign itself an IP address when a DHCP server is not available.

• Check if the computer has an IP address in the range of 169.254.0.1 to 169.254.255.254

• Verify if the computer is unable to obtain an IP address from a DHCP server

• Ensure that the network cable is properly connected and the DHCP server is funct...read more