Question

(a) Draw a typical hybrid star-ring topology paying attention to how the clients and switching hubs are connected.

(b) State 3 main differences between a router and a layer 2 switch.

(c) (i) List the four functional areas of Network Management.
(ii) What are the two parameters monitored by a Network Management System?

(d) Explain the Building Block Design process.

(e) In terms of Performance, assuming a network with an MTBF of 2000 Hours and MTTR of 12 Hours:

(i) What do you understand by MTTR?
(ii) Calculate the percentage Availability of the network.
(iii) Calculate the percentage Reliability of such a network over a one-year period.
(iv) What does this Reliability value mean?

(f) List the three different Management Information Base System (MIBS) modules available, giving a brief description of each.

(g) (i) Name the two methods by which a Network Management System can obtain information from SNMP?

(ii) Name three pieces of information that is included in a SNMP Trap?