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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 Layer is a protocol designed to provide secure communications on the Internet.
If a data packet switch has a queue of data packets waiting when a new packet reach. The new packet will be located on the whole queue and will have to wait while the switch forwar
Q. What is Bens Network? It's a non-blocking network. It's a special type of Clos network where first and last stage consists of 2×2 switches (for n input and m output networ
Recognize the command to show the Frame Relay map table Ans) Router# show frame-relay map is the the command to show the Frame Relay map table
Can you explain the different layers in OSI model?
TCP (Transmission Control Protocol) and UDP are used by TCP/IP. SPX (Sequenced Packet Exchange) is used with IPX. NBP (Name Binding Protocol) is used with Appletalk.
Explain Persistence timer? To deal with the zero-size windows What if a receiver advertises that the window size is 0 (by sending ACK) and this ACK is lost? - A
(i) Suppose that frames are 1250 bytes long including 25 bytes of overhead. Also assume that ACK frames are 25 bytes long. a) Calculate the efficiency of stop-and-wait ARQ in
How two adjacent layers communicate in a layered network? (or What do you mean by Service Access Point?) In layered network, each layer has lots of entities and entities of lay
Types of VTs There are several option for payload are actually mapped into the VT. Locked mode VTs bypass the pointers with a fixed byte oriented mapping of limited flexi
What is Proxy ARP? Is using a router to give answer ARP requests. This will be completed when the originating host believes that a destination is local, when in fact is lies be
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