Ports & Connectors in Network | Network Transmission Media [Hindi] | Networking Course #35

Ports & Connectors in Network | Network Transmission Media [Hindi] | Networking Course #35
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Ports and connectors are fundamental components in computer networking. They facilitate communication between different devices and systems. Here's a breakdown of some common network ports and connectors:
Network Ports
Network ports are virtual points where network connections start and end. They are used to manage different types of network traffic.
Physical Ports:
Ethernet Ports: Standard ports for wired network connections using Ethernet cables (RJ-45 connectors).
Fiber Optic Ports: Used for high-speed data transmission via fiber optic cables (e.g., LC, SC connectors).
Logical Ports:
Port Numbers: Logical endpoints for communication, identified by a number (e.g., HTTP uses port 80, HTTPS uses port 443).
TCP/UDP Ports: Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports are used for different types of data transmission.
Common Network Ports and Their Uses
HTTP (Port 80): Used for web traffic.
HTTPS (Port 443): Used for secure web traffic.
FTP (Ports 20, 21): Used for file transfer protocol.
SMTP (Port 25): Used for sending emails.
POP3 (Port 110): Used for receiving emails.
IMAP (Port 143): Used for receiving emails with more features than POP3.
SSH (Port 22): Used for secure shell access.
DNS (Port 53): Used for domain name system services.
RDP (Port 3389): Used for remote desktop protocol.
Network Connectors
Connectors are physical interfaces that connect cables to devices. Here are some common types:
Ethernet Connectors:
RJ-45: Standard connector for Ethernet cables, used in most wired networks.
RJ-11: Smaller connector used for telephone lines, sometimes for low-speed networking.
Fiber Optic Connectors:
LC (Lucent Connector): Small form-factor connector, commonly used in modern fiber optic networks.
SC (Subscriber Connector): Square connector, widely used in fiber optic networks.
ST (Straight Tip): Bayonet-style connector, used in multimode fiber networks.
Coaxial Connectors:
BNC (Bayonet Neill-Concelman): Used in older Ethernet networks and for video connections.
F-Type: Commonly used for cable TV and internet.
Wireless Connectors:
Wi-Fi Adapters: Internal or external adapters that connect to wireless networks.
Antenna Connectors (e.g., SMA, RP-SMA): Used for external antennas on wireless devices.
Network Cable Types
Twisted Pair Cables: Used in Ethernet networks; includes Cat5, Cat5e, Cat6, and Cat6a.
Fiber Optic Cables: Used for high-speed data transmission; includes single-mode and multimode fibers.
Coaxial Cables: Used for cable TV and older network connections.
Network Devices and Their Ports
Routers: Have multiple Ethernet ports and sometimes USB ports for connecting various devices.
Switches: Provide multiple Ethernet ports to connect several devices within a network.
Modems: Often have one Ethernet port to connect to a router or directly to a computer.
Access Points: Provide wireless connectivity, usually have Ethernet ports for wired connections.
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