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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 information
briefly explain how firewalls protect networks
Checksum This 16 bits field contain the checksum. The calculation of the checksum for TCP follows the same procedure as the described for UDP. However the inclusion
i) Identify at least two items at every site that needs upgrading [2 Marks] ii) What type of WAN connection (link) might you use to connect the three sites to each other?
The purpose of internetworking is universal service across heterogeneous networks. To give this service all computers, and routers have to agree to forward information from a sourc
Explain use of RTP and RTCP Protocol?
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
CHARACTERIZATION OF NETWORKS: There are three kinds of characterization of networks. LOCAL AREA NETWORK (LAN): It is needed for a single building. METROPOLOTAN AREA
Let us firstly illustrate the idea of merging two sorted sequences using a odd-even merging circuit. The functioning of a merging circuit is as follows: 1) Let there be two so
What are the Protocol Support Tools The Intranet should support the tools meant for providing various services on the Internet through the protocols. In addition to the convent
Describe distance vector routing protocol?
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