18
19

20

a)
a)

a)

b)

€.611111,11111)
d. d (000, 100)

Discuss Frequency hopping spread spectrum technique

What is Circuit switching? Explain the three phases in Circuit

E1176

switching with suitable diagrams.

Compare and contrast Datagram and Virtual-circuit packet switched

networks?

With the help of a neat block diagram, explain the structure of a packet

switch.

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