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Efficiency of a data communications system depends on three fundamental characteristics
- Delivery: The system should deliver data to the correct destination. Data should be received by the intended device or user and only by that device or user
- Accuracy: The system should deliver the data accurately. Data that have been altered in transmission as well as left uncorrected are unusable
- Timeliness: The system should deliver data in a timely manner. Data delivered not on time are useless. Delivering the data in the similar order that they are produced and without significant delay (real time transmission)
Local information is immediate hop routing table and distance from every switch. The switches regularly broadcast topology information i.e. distance, destination. Other switches mo
Q. Define Unicast - Multicast and Reserved Addresses? Unicast, Multicast, and Reserved Addresses Unicast address - identifies a specific device Multicast address
FDDI has four specifications: 1. Media Access Control it defines how the medium is accessed 2. Physical Layer Protocol it defines data encoding/decoding procedures 3. Phy
How does a Token-Passing Protocol works? The token-passing protocol relies on a control signal known as the token. A token is a 24-bit packet that circulates throughout the net
Q. Show the Vulnerability of the Internet? More vulnerable than private network. Wide inter-network connection. Easy access by mass public world-wide. Lack of build in
What is the difference between a JDK and a JVM? JDK is Java Development Kit which is for development purpose and it contains execution environment also. But JVM is purely a
Client Server Processes A network application consist of pairs of process that send message to one another over a network. For example in a web application a client
What is the Gateway A Gateway is a device like a mini or microcomputer capable of operating on a standalone basis but which also gives connection for communication with the oth
What do you mean by Protocol? In the context of data networking, a protocol is a formal set of rules and conventions that governs how computers exchange information over a netw
Q. What do you mean by Substitutional Ciphers? Substitutional Ciphers Monoalphabetic Substitution Polyalphabetic Substitution - Transpositional - character
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