Types of Network Topology in Computer Networks

The term topology in the context of communication network refers to the way the computers or workstations in the network are linked together. According to the physical arrangements of workstations and nature... Read more »

Crossover Cable

The crossover cable can be used to connect  Switch to switch  Hub to hub  Host to host  Hub to switch  Router direct to host   The same... Read more »

Straight-Through Cable

The straight-through cable is used to connect Host to switch or hub Router to switch or hub Four wires are used in straight-through cable to connect Ethernet devices. It is relatively simple... Read more »

Web Browser

A web browser allows you to sit at one computer and display information that resides in a web server somewhere on the Internet. The information can be in many forms, including simple... Read more »

OSPF (Open Shortest Path First) Protocol

The Open Shortest Path First (OSPF) protocol is the most widely used example of a link state routing protocol. It is in wide use as an interior gateway protocol on the Internet... Read more »

IGMP (Internet Group Management Protocol)

Internet Group Management Protocol (IGMP) is the protocol used to suooprt multicasting. To use multicasting, a process on a host must be able to join and leave a group. A process is a... Read more »

Coax cable types

These are the most used Caox cable types RG-58 /U – 50 ohm, with a solid copper wire core. RG-58 A/U* – 50 ohm, with a stranded wire core. RG-58 C/U* –... Read more »

ICMP (Internet Control Message Protocol)

Internet Control Message Protocol (ICMP) defined by RFC 792 and RFC 1122 is used for network error reporting and generating messages that require attention. The errors reported by ICMP are generally related... Read more »

UDP Message Format

The UDP header includes: 1. Source port number (16 bits) – An optional field 2. Destination port number (16 bits) 3. UDP length (16 bits) 4. UDP checksum (16 bits) This is... Read more »

RARP-Reverse Address Resolution Protocol

RARP (Reverse address resolution protocol)  is used for diskless computers to determine their IP address using the network. The RARP message format is very similar to the ARP Address Resolution Protocol format. When the booting... Read more »