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Issues with Bridges Connecting Different LANs
- Frame format - differences in frame structure, fields used (example Ethernet to Token Ring)
- Payload size - size of data encapsulated in the frame may differ
- Data rates - differences in data rates supported by different protocols; buffering may be necessary
- Address bit order - differs between protocols
- Other - differences in handling ACKs, collisions, priority, security, multimedia support, etc.
What are the various security measures A matter of prime concern to companies is the overheads in the form of huge investment on extra hardware and software. It is quite possi
10Base5 Connectors Transceiver - intermediary device as well called a medium attachment unit (MAU) Performs CSMA/CD function may perhaps contain small buffer Atta
Q. Advantages of Fiber Optics? - Higher bandwidth in comparison to twisted-pair and coaxial cable is not limited by medium but by equipment used to generate and receive signals
Question : a) Give three examples of vulnerable services which are among the overwhelming majority of successful attacks. b) Name the five outside sources which can be the
Most protocol suites have dissimilar OSI layer protocols within them. At layer 3, IP is for TCP/IP. TCP is layer 4. IPX is for IPX/SPX. SPX is layer 4. DDP is for Appletal
DLCI- Data Link Connection Identifier. A frame-relay service provider usually assigns DLCI values that are used by frame-relay to distinguish among different virtual circuits on th
To use a subnet or classless address, table under routers and hosts that have address must keep two pieces of information with every address: the 32-bit address itself and another
802.11g OFDM a) Uses OFDM with same 2.4 GHz band b) Achieves a 54-Mbps data rate c) Works with same 802.11b equipment
Control Frames for Lost Tokens If station goes down ... token lost Predecessor listens for data frame or token Noticing none, retransmits token Sends whofoll
Ans) The Transport Layer : Segments upper-layer applications. Establishes an end-to-end connection. Sends segments from one end host to another. Optionally, make sures
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