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Computer Networks
A computer networks can be defined as set of computer that interact among the individual computers sharing resources or information. Reference models have been establish the functions of certain layers in the network for proper performance. The followings section introduce two reference models the open system interconnection (OSI)model established by the international Organization for Standardization (ISO) and the transmission control protocol. Internet Protocol ( TCP / IP) model.
Assume that the clock-driven scheme for generating starting sequence numbers is used with a 16-bit wide clock counter (that is, sequence numbers range from 0 to 2^16). The clock t
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
What are Triggers and Rules? Triggers are special user defined actions generally in the form of stored processes that are automatically invoked by the server based on data rel
Name the OSI layer which performs code conversion, code formatting and encryption Ans) Presentation layer performs code conversion, code formatting and encryption
Time out The protocols name Go Back N is derived from the sender behaviour in the presence of lost or overly delayed packets. A timer will again be used to recover
Q. Explain about Domain Name System? -In the past, mapping of IP addresses was static using a host file -Impossible in today's dynamic environment -Domain Name System (DN
What is Network Server? Network Server is a computer in Network that is designated to give one or more network service. For instance file server, database server etc.
Buffering This protocols provides the advantage of buffering to the receiver can buffer any out of order packets after being received by sending acknowledgment when
Question : (a) Describe how ‘prototyping' is important to RAD. (b) List main features of ‘prototyping'. (c) List main principles of DSDM. (d) Describe the DSDM life-
Hybrid Networks Allows an organization to have its own private networks and at the same time access to the global internet. the organization may share its information w
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