Author: Sanchit Agrawal
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What is Stack Switches?
A stack switch, or stacking switch, combines multiple switches into a single logical unit, simplifying management, increasing scalability, and improving redundancy. It supports high availability, simplified configuration, and high-performance forwarding. Commonly used in enterprise networks for various deployment scenarios.
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Differences between Layer 2 and Layer 3 Switches
Layer 2 and Layer 3 switches differ in functionality, OSI layer operation, and capabilities. Layer 2 operates at the data link layer, makes forwarding decisions based on MAC addresses, and lacks routing capabilities. Layer 3 operates at both data link and network layers, makes decisions based on MAC and IP…
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What is Layer3 Switch?
A Layer 3 switch, also known as a multilayer switch (MLS), operates at both the data link and network layers, making routing decisions based on IP addresses. It offers routing functionality, packet forwarding at wire-speed, inter-VLAN routing, Quality of Service (QoS), access control, IPv4 and IPv6 support, dynamic routing protocols,…
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What is Layer2 Switch?
Layer 2 switches operate at the data link layer, using MAC addresses for high-speed, low-latency communication within LANs. They offer VLAN support, STP, and access control.
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What is Network Switch?
A network switch connects devices in a LAN, forwarding data packets between them. It operates at Layer 2 or Layer 3.
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What is Active FTP?
Active FTP is a mode of FTP connections where the client initiates the control connection, but the server actively establishes the data connection back to the client. This can cause issues with firewalls and NAT devices. In this mode, the server opens a port for the data connection. Passive FTP…
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What is SFTP?
SFTP, or SSH File Transfer Protocol, provides secure file transfer between client and server. It encrypts all data and commands using SSH for enhanced security. SFTP supports various authentication methods, is platform-independent, and enables secure file operations. It offers stronger security and firewall compatibility compared to traditional FTP, making it…
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What is FTP?
FTP, or File Transfer Protocol, is a standard network protocol for transferring files between a client and a server. It operates in two modes, supports various commands, and offers authentication through usernames and passwords. While FTP lacks encryption, it is commonly used for web server management, file sharing, backup, software…
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What is TFTP?
TFTP, or Trivial File Transfer Protocol, is a simple and lightweight protocol used for transferring small files over a network. It operates on UDP port 69 and lacks advanced security features found in other protocols like FTP. TFTP is commonly used for tasks like network booting, firmware updates, and configuration…
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What is SSH (Secure Shell) ?
SSH, or Secure Shell, is a cryptographic network protocol enabling secure remote login, command execution, and file transfer over untrusted networks. It replaces less secure protocols like Telnet, encrypts communication, supports various authentication methods, and facilitates secure tunneling and VPN-like connections. SSH is vital for secure system administration and remote…