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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
Assume the following 64-bit DES key (expressed in hexadecimal): FEFE FEFE FEFE FEFE (a) What is the term for such a key? (b) State the value of each of the 48-bit round keys
There are two logical addressing :- a) Datalink is physical (hardware) addressing. b) Network is logical (software) addressing.
what are the categories of LAN
TCP is connection-oriented. Connection-oriented is a kind of connection established between the source & destination machines before any data is sent that means a connection is est
Name the three ways or wireless data to be propagated.
Problem 1. Explain the TCP/IP Reference Model with diagram 2. Describe the following Maximum Data Rate of a Channel Signal to Noise Ratio 3. Describe the
Cisco Router architecture Overall architecture of Cisco 2600 router is given below The Following components of routers are 1. WIC slots 2. communications
Half-Duplex - Capability for data transmission in only single direction at a time among sending station and a receiving station.
On which languages Intranet works Language Support The Intranet works on the basis of scripts written in any of the following languages, viz., SGML, HTML, DHTML, XML, AS
QUESTION a) Give a detailed explanation of the following: Some dynamics systems can be built as variations on the client server model. b) Give one main drawback of the "Thin
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