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LAN stands for Local Area Network, a network that connects computers and devices within a limited area such as a home, office, or school.
LAN is a network that covers a small geographic area, typically within a single building or campus.
LAN allows connected devices to share resources such as files, printers, and internet access.
LAN can be wired (Ethernet) or wireless (Wi-Fi).
Examples of LAN technologies include Ethernet
WAN stands for Wide Area Network, a network that covers a broad area and connects multiple LANs.
WAN is used to connect geographically dispersed locations, such as different offices of a company.
It typically uses public infrastructure like the Internet or leased lines.
Examples of WAN technologies include MPLS, Frame Relay, and ATM.
A firewall 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 rules set by the administrator
Can be hardware-based or software-based
Examples include Cisco ASA, Palo Alto Networks, and pfSense
NAC stands for Network Access Control, a security solution that enforces policies for devices connecting to a network.
NAC verifies the identity of users and devices before allowing access to the network.
It can restrict access based on security posture, location, and other factors.
Examples of NAC solutions include Cisco ISE, Aruba ClearPass, and ForeScout CounterACT.
IPSec stands for Internet Protocol Security, a protocol suite used to secure Internet Protocol (IP) communications.
IPSec provides secure communication by authenticating and encrypting each IP packet in a data stream.
It operates at the network layer, ensuring data integrity, confidentiality, and authentication.
IPSec can be used to create Virtual Private Networks (VPNs) for secure remote access or site-to-site connection
Top trending discussions
Easy...all basic questions
Coding about array ,string concepts
Easy...all basic questions
Coding about array ,string concepts
posted on 16 Jun 2022
I applied via Referral and was interviewed before Jun 2021. There was 1 interview round.
posted on 8 Nov 2021
I applied via Naukri.com and was interviewed before Nov 2020. There was 1 interview round.
posted on 24 Jan 2021
I applied via Walk-in and was interviewed in Dec 2020. There was 1 interview round.
I am a motivated and detail-oriented individual with a passion for learning and growth.
Graduate student studying computer science
Experience in software development through internships
Strong communication and problem-solving skills
I applied via Campus Placement and was interviewed in Jul 2024. There were 2 interview rounds.
Based on normal but high level of maths questions related to relations , time , and coding decoding type problems
Just normal conversations with full confidence and good presentation of the topic.
OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.
OOPs concepts include encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation refers to the bundling of data with the methods that operate on that data.
Inheritance allows a class to inherit properties and behavior from another class.
Polymorphism allows objects to be treated as instances of their par...
Collections in Java are classes that represent groups of objects, providing operations for manipulation and iteration.
Collections framework in Java provides interfaces (e.g. List, Set, Map) and classes (e.g. ArrayList, HashSet, HashMap) for storing and manipulating groups of objects.
Collections offer methods for adding, removing, and accessing elements in a collection.
Collections also provide methods for sorting, searc...
I am a passionate software engineer with experience in developing web applications using various technologies.
Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular
Proficient in backend development with Node.js and databases like MongoDB and MySQL
Familiar with version control systems like Git and deployment tools like Docker
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