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Two neighbouring nodes (A and B) use a Go-Back-N protocol with a 3-bit sequence number and a window size of 4. Acknowledgments are cumulative. Assuming A is transmitting and B is receiving, in the figure below show the window positions for the following succession of events:
a) after A sends frames 0, 1, 2, 3 and before any acknowledgments from B are received
b) after A sends all new frames it is allowed to send following a successful reception of acknowledgment to frame 1
c) just after acknowledgment to frame 2 arrives (but before any more frames are sent) Use diagonal crosses to show sequence numbers of packets sent but not yet acknowledged, and circles to show sequence numbers of packets node A is allowed to send
Consider an RTP session consisting of five users, all of which are sending and receiving RTP packets into the same multicast address. Each user sends video at 200kbps. a) What
Advantage of IP sec Tunnelling Mode IP Sec tunnelling mode has the following advantages: a.Security : Ts IP sec tunnelling mode secure somewhat but not the best. In a
The science and art of manipulating messages in order to create them secure is known as cryptography..... Two types are:- Symmetric key cryptography and Asymmetric key crypto
Efficiency :- The other main metric used for performance measurement is efficiency of parallel computer system i.e. how the resources of the parallel systems are being utilized
With an object server, the Client/Server application is written as a set of communicating objects. Client object commune with server objects using an Object Request Broker (ORB). T
features
Explain about the Switches LAN switches are an expansion of the method in LAN bridging, which controls data flow, handles transmission errors, gives physical addressing, and ma
write a html program segment that contains hypertext links from one document to anothersk question #Minimum 100 words accepted#
Q. Show VPNs Security and the Internet Model? - VPN's Security and the Internet Model - Application layer - provide for each application protocol (other layers may be left v
Mention different categories of computer networks (on the basis of scale) and distinguish one from the other. Local Area Network (LAN): Metropolitan Area Network (MAN): W
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