What Is OSI (Open Systems Interconnection) Model?
Open Systems Interconnection Model or OSI Model is an architecture to specify computer networks functions in a clear and compatible …
Switching
What Is WAN (Wide Area Network)?
A Wide Area Network or WAN is a computer network which ranges over different cities, countries eve continents simply large …
What Is Dial-Up Internet Connection?
Dial-Up is a network connection that uses the copper lines or phone lines to connect remote systems. Dial-up was used …
What Is VLAN (Virtual LAN)?
VLAN is network topology and methodology which is used to create separate and isolated single or multiple LANs’s over the …
What Is X.25 Packet Switching Network Protocol?
X.25 is a packet-switched network technology used long before ago. X.25 is one of the first packet-switched network used to …
What Is NIC (Network Interface Card)?
NIC is the short form of the Network Interface Card. Network Interface Card or simply Network Card is simply used …
What Is Kbps (Kilobits Per Second)?
Kbps is a very popular term used in IT. Kbps is the short presentation of the Kilobits per second in …
What Is Network Hub?
Network Hub is one of the most basic computer network devices. Network hub created a lot of time ago fr …
SNMP Port Number Tutorial with Examples
Simple Network Management Protocol aka SNMP is used to monitor and manage devices over the computer networks. SNMP is popularly …
Port 22 and Relation with SSH Protocol
What is port 22? Is SSH using 22 or different port? How can I check that port 22 is open? …