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Q. Focus of Reliability Control?
- Implementation of the OSI model puts emphasis on providing a reliable data transfer service while the TCP/IP model treats reliability as an end-to-end problem.
- Every layer of the OSI model detects and handles errors all data transmitted includes checksums. The transport layer of the OSI model checks source-to-destination reliability.
- In the TCP/IP model, reliability control is concentrated at the transport layer. The transport layer handles every error detection and recovery. The TCP/IP transport layer uses acknowledgments, checksums and timeouts to control transmissions and provides end-to-end verification.
State the Software requirement for an intranet To develop an Intranet the first we should design a Client /Server model for our network. As you know clients are the computers
Q. Show the Masking process? Masking Take out the address of the physical network from an IP address Used by routers inside the organization
How to protect computer Hardware by threats The first component in the computer system vulnerable to attacks or threats, and most important to be protected, is the hardware.
Maintaining the sequence number The other advantage of GBN is that it maintain the next sequence number.
Q. What are the trends in Network Security ? Trends in Network Security Improved vigilance for virus infections Continual maturation of firewall technologies
What is horizontal and vertical parity A single error can cause both horizontal and vertical parity checks to be wrong. Two errors can also be easily detected. If they are not
TWO DIFFERENT KINDS OF TOPOLOGIES: LOGICAL TOPOLOGY: It is described by the specific network technology. PHYSICL TOPOLOGY: It relays on the wiring scheme. NE
What is Applets Little programs that can make the Web pages more aesthetically beautiful by means of animations, text, and graphics moving across the screen.
Determine the Difficulties arise with database connectivity A number of difficulties arise with database connectivity and the company may have to shell out an enormous amount
Difference among the communication and transmission? Transmission is a physical movement of information and concern issues as bit polarity, synchronization, clock etc. Commu
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