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Virtual Private Network (VPN) adds the features of both public and private networks. It is fixed to single organization and needs public network for connectivity.
These connections are sometimes known tunnels and connect sites. Every site sees tunnel as point-to-point link. There is no access for other clients of public networks.
GUARANTEEING ABSOLUTE PRIVACY:
In addition to restricting data packets, VPN machines use encryption to sure absolute privacy. Even if an outside does manage to retain a copy of the data packet the outside will be unable to interpret the message.
Client Server Architecture There is an always on host called server which provides service requests to many other hosts called clients. In other words client progra
HEADERS AND FRAME FORMAT: LAN technology standards describe frame format for every technology. All contemporary standards use the following basic format. a) Frame header b
Token Bus Physical order of stations doesn't matter Line is broadcast medium "Send" token by addressing neighbour Provisions for deleting, adding stations
Hierarchy of DNS Servers DNS uses a large number of server organized in hierarchical fashion and distribution around the world. No single DNS server has all of the mappin
Simple Mail Transfer Protocoland Secure Sockets Layer SMTP: Simple Mail Transfer Protocol is a server-to-server protocol for delivering electronic mail. SSL: Secure Sockets
HTTP Request Message The first line of an HTTP request message is called the line. The subsequent lines are called the header lines. The request line has fields the me
State the Software requirement for an intranet To develop an Intranet the first we should design a Client /Server model for our network. As you know clients are the computers
Ask questiXYZ, is Pakistani company which is selling toys in all the major cities of Pakistan having 50 outlets in different cities. The company has the revenue of 10000000/- PKR p
A carrier is frequency modulated with a sinusoidal signal of 2 kHz, resulting in a maximum frequency deviation of 5 kHz. (a) Find the bandwidth of the modulated signal (b) The ampl
There is a many-to-one relationship among clients and server. Clients always start the dialog by requesting a service. Servers are passively awaiting for requests from clients.
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