VOIP or voice over internet protocol is a technology that uses IP based networks such as internet or private networks to transmit the voice communication.īluetooth is a short range wireless technology that uses radio waves for communication. VPN uses PPTP (point to point tunneling protocol) and other security procedures to make a secure tunnel on internet. VPN or virtual private network is used to connect two networks by means internet. What is Virtual Private Network (VPN) and how does it work? The purpose of the firewall is to protect the network resources from the intruders and unauthorized persons.
UDP or user datagram protocol is a connectionless protocol that is used to transfer the data without any error handling.Ī firewall is usually a software program that is installed on the network server or gateway. IP V6 is a next generation protocol that is used as an expansion of DNS. What are the standard port numbers for SMTP, POP3, IMAP4, RPC, LDAP, and FTP?
Lightweight Directory Access Protocol is used to access the directory services from the Active directory in Windows operation systems. The seven layers of the OSI are Application, Presentation, Sessions, Transport, Network, Data Link and Physical layer. Wi max is a very high speed broadband network technology that is designed for the corporate offices, roaming and home users. Wi Fi or wireless fidelity is a base band network technology that is used for the wireless data communication. IP addresses on the internet are usually assigned by the local ISPs to which users are connected. Every host computer on the internet must have a unique IP address.
MAC addresses are 12 digital hexadecimal numbers.Īn IP address is a unique identifier of a computer or network device on the local area network, WAN or on internet. The MAC address is provided by the manufacturer of the device. MAC address or Media Access control is a unique identifier of a computer device. Subnet masks allow the IP based networks to be divided into the sub networks for performance and security purposes. Every class of the IP address uses the different range of the subnet mask. WLAN uses wireless network devices such as wireless routers etc.Ī subnet mask is used to determine the number of networks and the number of host computers. WLAN or Wireless local area network is simply a type of network that doesn’t use wired Ethernet connections for networking. A gateway is a network entrance point and a router usually works as a gateway. A router works with built-in intelligent software known as routing table, which helps to determine the route between the two networks.Ī gateway is software or a hardware that is used to connect the local area network with the internet. Router defines the short possible route for the data to reach its destination. Router is the most important network device that is used to connect two logically and physically different networks. DHCP is a network protocol that automatically assigns static and dynamic IP addresses from its own range. Dynamic host configuration protocol is used to dynamically assign the IP address to the networked computers and devices.