Netcon Technologies Network Engineer L1 L2 Interview Questions and Answers

Q1. Explain DHCP and process of working
Ans. 
DHCP is a network protocol that assigns IP addresses automatically to devices on a network.
• DHCP stands for Dynamic Host Configuration Protocol

• It allows devices to obtain IP addresses and other network configuration information dynamically

• DHCP server assigns IP addresses to devices within a network

• DHCP lease time determines how long an IP address is valid for a device

• DHCP renewal process occurs when a device tries to re
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Q1. What is OS and how to install OS?
Ans. 
OS stands for Operating System. It is a software that manages computer hardware and provides common services for computer programs.
• An OS is the most important software that runs on a computer.

• It manages the computer's memory, processes, and all of its software and hardware.

• To install an OS, you need to boot the computer from a bootable installation media such as a USB drive or a DVD.

• Follow the on-screen instructions to...read more
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Q2. How to troubleshoot LAN?
Ans. 
To troubleshoot LAN, check physical connections, verify network settings, restart devices, check for IP conflicts, and use network monitoring tools.
• Check physical connections to ensure cables are securely connected

• Verify network settings such as IP address, subnet mask, and default gateway

• Restart devices such as routers, switches, and computers

• Check for IP conflicts by ensuring no two devices have the same IP address

• Us...read more
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Q3. How to restore point create?
Ans. 
Restore points can be created in Windows by accessing the System Protection settings.
• Open Control Panel and go to System and Security.

• Click on System and then on System Protection.

• Select the drive you want to create a restore point for and click on 'Create'.

• Give the restore point a name and click 'Create'.
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Q4. What is ping command?
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Ping command is a network utility tool used to test the reachability of a host on an IP network.
• Ping command sends ICMP echo request packets to the target host and waits for a response.

• It measures the round-trip time for packets to reach the destination and come back.

• Ping is commonly used to troubleshoot network connectivity issues.

• Example: 'ping www.google.com' will send ICMP packets to Google's server and display the
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Q5. Explain BIOS purpose of bios installed?
Ans. 
BIOS is a firmware installed on a computer's motherboard that initializes hardware components and boots up the operating system.
• BIOS stands for Basic Input/Output System

• It is responsible for initializing and testing hardware components during the boot process

• BIOS also provides a platform for configuring hardware settings

• It loads the operating system into the computer's memory and hands over control to it

• BIOS settings c...read more
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Q1. How to collaborate with me and the Team?
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Q2. Processor types in Laptop ?
Ans. 
Common processor types in laptops include Intel Core i3, i5, i7, and i9, as well as AMD Ryzen series.
• Intel Core i3, i5, i7, i9

• AMD Ryzen series
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Q3. OS types and How to install OS ?
Ans. 
Different types of operating systems include Windows, macOS, and Linux. OS installation involves booting from installation media and following on-screen prompts.
• Types of OS include Windows, macOS, and Linux

• To install OS, boot from installation media (CD, USB)

• Follow on-screen prompts to select language, partition disk, and install OS

• Examples: Installing Windows 10 from a USB drive, Installing macOS Catalina from a DVD
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Q1. Self evaluation Questions
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