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I applied via Naukri.com and was interviewed in Nov 2022. There was 1 interview round.
ARP is used to map IP addresses to MAC addresses on a local network.
ARP stands for Address Resolution Protocol.
It is used to find the MAC address of a device based on its IP address.
ARP is essential for communication between devices on the same network.
ARP cache stores the mapping of IP addresses to MAC addresses for faster communication.
Example: When a computer wants to communicate with another device on the network, ...
HSRP, VRRP, and GLBP are all protocols used for providing redundancy in network environments.
HSRP (Hot Standby Router Protocol) is Cisco's proprietary protocol for providing high availability by allowing two or more routers to work together in a group.
VRRP (Virtual Router Redundancy Protocol) is an open standard protocol similar to HSRP, used for providing a virtual IP address that can be shared among multiple routers.
...
Root bridge election in a network is determined by the bridge ID and the lowest path cost to the root bridge.
Root bridge is the bridge with the lowest bridge ID in the network.
Bridge ID consists of a priority value and a MAC address.
If two bridges have the same priority, the bridge with the lowest MAC address will become the root bridge.
Each bridge calculates the path cost to the root bridge based on the cumulative cos...
I will troubleshoot network issues by following a systematic approach to identify and resolve the root cause.
Start by gathering information about the issue reported
Check physical connections and cables
Verify network configurations and settings
Use network monitoring tools to identify any anomalies
Isolate the issue by testing connectivity between devices
Check for any network congestion or bandwidth issues
Consult network ...
STP (Spanning Tree Protocol) is a network protocol that ensures a loop-free topology in Ethernet networks.
STP prevents loops in Ethernet networks by blocking redundant paths.
It elects a root bridge to serve as the central point for the network.
STP uses Bridge Protocol Data Units (BPDUs) to exchange information between switches.
Common STP states include Blocking, Listening, Learning, Forwarding, and Disabled.
STP converg...
DHCP process involves four steps: Discover, Offer, Request, Acknowledge (DORA).
Discover: Client broadcasts a DHCP Discover message to find available DHCP servers.
Offer: DHCP server responds with a DHCP Offer message containing IP address lease information.
Request: Client sends a DHCP Request message to request the offered IP address.
Acknowledge: DHCP server sends a DHCP Ack message confirming the IP address lease to th
The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven different layers. TCP/IP is a protocol suite that is used for communication over the internet.
OSI model has 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, Application
TCP/IP is a protocol suite that includes TCP (Transmission Control Protocol) and IP (Internet Protocol)
...
Subnetting is the process of dividing a network into smaller subnetworks to improve performance and security.
Subnetting helps in optimizing network performance by reducing network congestion.
It allows for better organization and management of IP addresses.
Subnetting enhances network security by isolating different parts of the network.
Example: Dividing a large network into smaller subnets based on departments or locati
VSF and VSX are both technologies used in networking for virtualization and redundancy, but they have key differences in terms of implementation and capabilities.
VSF (Virtual Switching Framework) is used in HPE Aruba switches to create a single logical switch from multiple physical switches, providing redundancy and scalability.
VSX (Virtual Switching Extension) is used in Cisco Nexus switches to create a virtual chassi...
ACL stands for Access Control List and is used to control network traffic by allowing or denying packets based on defined rules.
ACLs can be used to filter traffic based on source or destination IP address, protocol, port number, etc.
They can be applied on routers, switches, and firewalls to control access to network resources.
ACLs can improve network security by restricting unauthorized access to sensitive data.
Example...
To upgrade firmware, you need to download the latest firmware version from the manufacturer's website and follow the specific instructions provided.
Download the latest firmware version from the manufacturer's website
Backup current configuration before upgrading
Follow specific instructions provided by the manufacturer
Test the new firmware in a controlled environment before deploying it in production
To configure SSID, access the wireless router's settings and enter the desired network name, security type, and password.
Access the wireless router's settings through a web browser
Locate the wireless settings section
Enter the desired SSID (network name)
Select the appropriate security type (WPA2, WEP, etc.)
Set a strong password for the network
Save the changes and restart the router if necessary
To configure 802.1x protocol, you need to set up authentication servers, configure network devices, and define access policies.
Set up authentication servers such as RADIUS or TACACS+
Configure network devices (switches, routers, wireless access points) to support 802.1x
Define access policies for different user roles and devices
Enable 802.1x on network ports and specify authentication methods (EAP-TLS, PEAP, etc.)
I applied via Campus Placement and was interviewed in Jul 2024. There were 2 interview rounds.
Already I will crack it
A network is a collection of interconnected devices that can communicate with each other. Types include LAN, WAN, MAN, WLAN, and VPN.
LAN (Local Area Network) - connects devices within a limited area like a home or office building
WAN (Wide Area Network) - connects devices over a large geographical area, like different cities or countries
MAN (Metropolitan Area Network) - covers a larger area than a LAN but smaller than a...
The Internet is a global network of interconnected computers and devices that allows for communication and sharing of information.
The Internet is a network of networks, connecting billions of devices worldwide
Companies and industries typically use a combination of local area networks (LANs) and wide area networks (WANs)
LANs are used within a single location, such as an office building, while WANs connect multiple locat...
Innovation, cybersecurity, data analytics, automation, and cloud computing are important in the IT sector.
Innovation drives technological advancements and competitive edge.
Cybersecurity is crucial to protect sensitive data and systems from cyber threats.
Data analytics helps in making informed decisions and improving business processes.
Automation streamlines repetitive tasks and increases efficiency.
Cloud computing enab...
I applied via Campus Placement and was interviewed in Jan 2024. There were 3 interview rounds.
General aptitude and simple coding and networking questions
On any general knowledge topic is given we should share our thoughts on that.
Top trending discussions
I applied via Campus Placement
My final year project was on developing a web-based inventory management system using Java and MySQL.
Developed using Java and MySQL
Web-based inventory management system
Implemented basic OOPs concepts
Used MVC architecture for better code organization
Included features like user authentication, product management, and order tracking
I applied via LinkedIn and was interviewed before Jun 2021. There were 2 interview rounds.
They give some topics related to present situation like in my GD in 2020 co. HR give topics related to that situation in our country like difference between offline education and online education system. and covid-19 pandemic related topics.
I applied via Naukri.com and was interviewed in Sep 2021. There were 2 interview rounds.
Types of test steps in software testing
Unit testing - testing individual units or components of the software
Integration testing - testing how different units or components work together
System testing - testing the entire system as a whole
Acceptance testing - testing if the software meets the requirements and is ready for release
Regression testing - testing to ensure that changes or updates to the software did not intro...
I applied via Walk-in and was interviewed before Nov 2021. There was 1 interview round.
based on 3 interviews
Interview experience
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