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QUESTION
a) List the seven layers of the ISO-OSI model and briefly describe the role of each layer
b) Describe the functions of the following intermediate systems-
c) Assume six devices are arranged in a mesh topology
How many cables are needed?
How many ports are needed for each device?
Discuss an example of threats in computer software Assume only one attack out of the above list i.e., the virus attack. Though the present anti-virus software solutions can det
Elaborate the term - Database Connectivity Basic connectivity A number of database management systems are available today such as the Oracle, Sybase, Ingres, etc. Most
Operating System - Server and Client Various operating systems that support Intranets are all variants of Windows and Unix. In addition to these, certain other software releva
Work-Sharing Constructs A work-sharing construct distributes the implementation of the associated region between the members of the team that encounters it. A work-sharing cons
Advantages of Bridges By forwarding frames only to the segment where host resides a bridge server the following purpose. a.Unwanted traffic as well as network c
Role of Software in Intranet For an Intranet to be successful, it must have strong software support. In this section, a brief description of the operating system, groupware an
Mesh It is of two dimensional network. In this every processing elements are arranged in a two dimensional grid. The processor are in rows i and column j are denoted by PEi
Configure the Physical Topology Step 1: Cable the network. Refer to the figure and table below for the essential cables. Step 2: Physically connect lab devices. C
State in brief about the Local Area Network (LAN) LAN is an interconnection of computers and associated peripherals as well as to the communications system as shown in Figure
802.11a OFDM a) Orthogonal frequency-division multiplexing utilizing a 5-GHz band b) Same as FDM except all sub bands are used by only one source at a given time c) Secu
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