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# Computer Networks - Network Fundamentals

6:

The topology with highest reliability is

 A. bus topology B. star topology C. ring topology D. mesh topology Answer Report Discuss Option: D Explanation : Click on Discuss to view users comments. chandan kumar said: (9:21am on Saturday 6th July 2013) mesh topology is only pont to point topology which provide maximum accuracy in data sending and if one machine is down then it's effect is only limited to these two machine it's not effect the entire topology Rajvir said: (12:45am on Sunday 9th July 2017) Mesh topology is highly reliable Write your comments here:
7:

Baud means the

 A. number of bits transmitted per unit time B. number of bytes transmitted per unit time C. rate at which the signal changes D. None of these Answer Report Discuss Option: C Explanation : Click on Discuss to view users comments. chandan kumar said: (9:25am on Saturday 6th July 2013) bound rate is the rate at which signal is change per unit timeand bit rate is the rate at which data is send per unit time Write your comments here:
8:

Which topology requires a central controller or hub ?

 A. Mesh B. Star C. Bus D. Ring Answer Report Discuss Option: B Explanation : Star topology and tree topology requires central controller or hub. Mesh, ring, bus topologies doesn't need hubs. Click on Discuss to view users comments. Write your comments here:
9:

Which topology requires a multi point connection?

 A. Mesh B. Star C. Bus D. Ring Answer Report Discuss Option: C Explanation : Bus topology requires a multipoint connection. Because, in this there is a single communication channel, that is shared by all the systems in a net work. So bus topology require multipoint connection. Click on Discuss to view users comments. Write your comments here:
10:

In which topology, if there are n devices in a network, each device has n-1 ports for cables ?

 A. Mesh B. Star C. Bus D. Ring Answer Report Discuss Option: A Explanation : Click on Discuss to view users comments. chandan kumar said: (9:35am on Saturday 6th July 2013) since mesh topology is point to point topology hence if there are n node in a network then it's connected ot ecah node in sytem sepratellyhence i device connect to remaining n-1 device in n-1 port of cable Write your comments here:

Syllabus covered in this section is-

• ISO/OSI stack
•  LAN technologies (Ethernet, Token ring)
•  Flow and error control techniques
•  Routing algorithms
•  Congestion control
•  TCP/UDP and sockets
•  IP(v4)
•  Application layer protocols (icmp, dns, smtp, pop, ftp, http)
•  Basic concepts of hubs, switches, gateways  and router

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