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a) Consider a hypothetical arrangement of ‘self-learning' bridges shown in the figure below. Assuming all are initially empty, give the forwarding tables for each of the bridges B1, B2, B3, B4 and B5 after the following transmissions: Host X sends a frame to Host Y followed by Host W sending a frame to Host Z.
b) i) Give the structure of an ATM UNI cell header and describe the role of each field in the header.
ii) Using a sketch, show how ATM cells are routed and explain the difference between virtual paths and virtual channels.
As we previously know, the merge sort algorithm needs two circuits, i.e. one for merging and second for sorting the sequences. Thus, the sorting circuit has been derived from the a
DNS cache poisoning The DNA cache poisoning generally refers to the process of maintaining or developing the false information, in the cache of DNS server. This process refers
Priority and Reservation Higher priority stations may possibly access the token sooner Each station has a priority code Since token passes by station waiting to t
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
- EIA/ TIA specifies and RJ-45 connector for unshielded twisted-pair (UTP) cable. The letter RJ stand for registered jack and the number 45 refers to a specific wiring sequence.
which are 5 major network services
Torus The mesh network with enclose around connections is called Tours Network.
What is the difference among URL instance and URL Connection instance? Ans) A URL instance represents the location of a resource, and a URL Connection instance shows a link for
802.11 CSMA/CA a) Wait a DIFS time to avoid collision b) Send RTS and wait for CTS reply to obtain the use of the Medium (air) c) Use of SIFS time for control informatio
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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