Introduction to Data Communications – 1 – 2

6. The network topology in which devices are not linked to each other and where hub acts as a central controller is _________.

(a) tree
(b) star
(c) ring
(d) mesh

ANSWER

EXPLANATION

7. Which of the following topology share a single channel on which all stations can receive and transmit data ?

(a) LAN
(b) BUS
(c) RING
(d) TREE

ANSWER

EXPLANATION

8. In which topology data packet is removed by the source destination ?

(a) tree
(b) star
(c) ring
(d) mesh

ANSWER

EXPLANATION

9. The _______ provides mobile subscriber network access over an air interface.

(a) core network plane
(b) TV access plane
(c) radio access plane
(d) end-user services plane

ANSWER

EXPLANATION

10. The sharing of information, which includes transfer and preservation of data, is called ________.

(a) switching
(b) modulation
(c) data communication
(d) transmission medium

ANSWER

EXPLANATION

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