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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.
Explain the different symmetric algorithms?
You are designing a network for a retail customer; they plan to have 5 locations initially with the main store acting as the warehousing depot. Within the next year they are plann
Q. Show the Flow characteristics? Flow characteristics Reliability - if lacking means that packets or ACKs are lost - more important with FTP, SMTP than with audio
Addresses are necessary for virtually everything we do on the Internet. In TCP/IP the IP is a mechanism for providing addresses for computers on the Internet. Internet addresses ha
Network Layer and Routing As discussed in previous chapters the physical layer provides connection sand services to the data link layer while the data link layer is
THICK ETHERNET WIRING: It needs thick coax cable. AUI cable joins from NIC to transceiver. AUI cable take digital signal from NIC to transceiver. The transceiver creates anal
Control Frames for Lost Tokens If station goes down ... token lost Predecessor listens for data frame or token Noticing none, retransmits token Sends whofoll
No Retransmission This protocols will not through the correctly received packets but buffers than and send acknowledgment for those packets. Thus retransmission of th
Which protocol will send a message to routers if a network outage or congestion happen Ans) Internet Control Message Protocol - ICMP will send a message to routers if a network
What are the disimialr tables in OSPF?
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