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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
This is a report, I am working on another one. This report is on finding a better solution dealing with customer, wifi, management, etc.
Router Routing achieved commercially popularity in the mid - 1980s - at a time when large-scale Internetworking began to change the fairly simple, homogeneous environments. Rou
a) Peer-to-Peer Network Computers can act as both servers sharing resources and as clients using the resources. b) Server-based Network Give centralized control of netwo
what range is this
Command Structure: Commands are all-upper-case strings, either 4 or 6 characters in length. Table 1 shows the commands, and (for method commands) the parameters, return values, ex
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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
What are the advantages of Star Topology? The advantages of star topology are: a. Relatively easy to configure. b. Simple to troubleshoot c. Media faults are automatic
Consider the site-to-site VPN scenario shown in Figure 2. Let's deploy the AH protocol on the two VPN routers so that no desktop on the two sites need to do any AH operations. Assu
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