Originally posted by reynaldo
i do have one concern in the multiple choice, regarding the network topology section. C and D were both star networks, but one had another computer in the centre, and the other didnt have anything (not even a hub).
And i wasn't sure if the computer in D was a server or something.. so i picked C, was that the right choice? the question seemed confusing without the existence of a hub..
Question 8.
A and B = no repeators (terminators), I laughed at the 'star' in A, as well as the ring topology in B.
Getting to the point:
C and D have correct diagrams of a bus network, with repeators (terminators).
C is not connected to anything 'in the centre'. It was the incorrect choice.
Only D is the star network, as C is 'arranged' in a star formation, but it is not truly a star network topology (you can still re-arrange the cabling to suit a bus, if you wanted to).
The "computer" in D is actually a node; a device. It could be a hub or a computer.
D is correct as it has the correct diagram for the bus network topology, and by definition, a star network topology has a central computer with each node/device connected to it.
You can clearly see the extra cabling in both C and D, however you cannot see any
central connecting device in C, only in D.
Further, if the central computer in D fails, the network fails. It is
only if the central computer fails, all other devices/nodes (computers) can fail and the network operates independently of such device failures.