6:38 AM
VAAGESWARI COLLEGES
1. Explain the different types of network topologies
2. Explain briefly about OSI model
3. Explain the terms Information capacity, bit rate, baud & M-ary encoding
4. Explain analog and digital modulation schemes
5. Explain different types of metallic transmission lines
6. Write a short notes on optical fiber cable losses
7. Briefly explain about optical fiber modes
8. Explain about light sources and light detectors
9. Write short notes on pulse modulation and dynamic range.
10.Define companding and explain digital companding with encoding and decoding tables.
11.Define multiplexing and briefly explain about T1 digital carrier system.
12.Explain about AT&T’S FDM Hierarchy.
13.Explain the given below a).Refraction b).Reflection c).Diffraction d). Interference
14.Explain about the given propagation techniques a).Ground wave propagation b).Space wave propagation c).Sky wave propagation
15.Explain the different types of satellite multiple access techniques.
16.Define a).Attenuation b).Absorption c).Skip distance
