Lecture-4 EEE 309/EEE 3307 Comm Theory

Lecture-4 EEE 309/EEE 3307 Comm Theory

Open Ended

Which technology is used to support broadband in PSTN line using copper wire?

Multiple Choice

Which multiple access technology is used for PSTN?

• TDMA

• CDMA

• FDMA

Multiple Choice

How many links are required for a mesh topology with 6 nodes?

• 10

• 15

• 20

• 25

Open Ended

In PSTN which are connect using star topology and which are connected by mesh topology?

Open Ended

What is the reason for cellular geometry in mobile communication?

Multiple Select

Why is a region splitted into cells?

• More BTS can be used

• Capacity can be increased by frequency reuse

• More number of users can be supported with a given set of frequencies

• It looks better

Open Ended

What is the air interface?

Open Ended

What is the reason for adopting layered architecture in computer networks?

Open Ended

What is the main difference between circuit-switched network and packet-switched network?

Open Ended

What is the difference between payload and header of a packet?

Open Ended

What is the main function of a router?

Open Ended

How many layers are there in ILDTS policy?