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Q. Explain physical layer of Osi reference model?
- The physical layer deals among the physical characteristics of the transmission medium.
- It defines the mechanical, electrical, procedural and functional specifications for maintaining, activating and deactivating the physical link between end systems.
- Such characteristics like timing of voltage changes, voltage levels, physical data rates, maximum transmission distances, physical connectors and other similar attributes are defined by physical layer specifications.
- Instances RJ45, EIA/TIA-232 and NRZ
Determine the term - Mobility Mobility refers to the types of physical transitions that can be done by a mobile node within an 802.11 environment (no transition, movement from
Q. Function of TCP/IP Transport Layer ? TCP/IP Transport Layer - Defines two standard transport protocols UDP and TCP - TCP equipment a dependable data-stream protocol
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QUESTION (a) Briefly describe three security requirements of an agent (b) List four threats that may be caused by malicious hosts to mobile agents (c) Describe the forwar
telecommunication processors
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Hardware requirement for an intranet To setup a WAN, one would need to have some type of communication between different sites. National ISDN, Very Small Aperture Terminal (VSA
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