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Topie 1, DESCRIBE THE OPERATION OF DATA NETWORKS (75 ąuestions)
Section 1: Describe the purpose and functions of various network devices (6 ąuestions)
OUESTION NO: 1
Which one of the following characteristics is true regarding the use of hubs and switches?
A. Hubs can have their ports be configured with VLANs
B. Using hubs is costly with regard to bandwidth availability.
C. Switches can not forward broadcasts.
D. Switches are morę efficient than hubs in processing frames.
E. Switches inerease the number of collision domains in the network.
Answer: E
ExpIanation: Switches inereases the number of collisions domains in the network. Switches that are configured with VLANs will reduce the size of the collision domains by inereasing the number of collision domains in a network, but making them smaller than that of one big, fiat network.
Incorrect Answers:
A. Switches are capable of VLAN configurations, but hubs are not.
B. Hubs are generally the least costly method possible to connect multiple devices together in a network.
C. Switches forward broadcasts and multicasts, by default, to all ports within the same VLAN. Only routers błock all broadcast traffic by default.
D. Switches and hubs can be eąually efficient in processing frames, in theory. In practice, switches are generally morę efficient as they usually have morę CPU and memory allocated to them, and are generally much morę expensive than a simple hub.
QUESTION NO: 2
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