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- The model was developed by the ISO (International Organisation for Standardisation) in 1984. It is currently considered the primary Architectural model for inter-computer communications.
- The OSI (Open Systems Interconnection) reference model is a descriptive network scheme. It makes sure greater compatibility and interoperability between various types of network technologies.
- The OSI model describes how information or data makes its way from application programmes (such like spread sheets) through a network medium (such like wire) to another application programme located on another network.
- The OSI reference model divides the difficulty of moving information between computers over a network medium into SEVEN smaller and more manageable problems.
- This separation into lesser more manageable functions is known as layering.
A modified NRZ code known as enhanced-NRZ (E-NRZ) operates on 7-bit words; inverting bits 2,3,6 and 7; and adding one parity bit to each word. The parity bit is chosen to make the
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
Describe networking. Networking refers to the inter connection among computers and peripherals for data communication. Networking can be done using wired cabling or by wireless
Explain the transport layer in detail Transport Layer: Transport layer ensures and controls the end-to-end integrity of data message propagated via the network amid two devic
benz network
Q. Multimode for transmitting optical signals? - Multiple beams from light source travel through core at different paths - Multimode step-index fiber Density remains
CAUSES OF FAILURES Every failure has a well-defined cause. Any system or device has an inherent strength or capacity to resist failures. This depends on design, material, man
What is meant by horizontal scaling and vertical scaling? Ans) Horizontal scaling means adding or removing client workstations with only a small performance impact. Vertical
State the Nyquist theorem The Nyquist theorem is thermo of mathematics and has nothing to deal with technology. It says that if you have the function whose Fourier spectrum doe
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