1. Data transmission occurs between ----
Ans=transmitters and receivers over same transmission medium.

2. Which of the following is not true about TCP reference model?
Ans=seven layers.

3. Which of the following is true about OSI reference model?
Ans=First come description of model and protocol comes next.

4. A communication system that supports many udders is called ---
Ans=Network

5. Which of the following is true about the example of unguided propagation medium?
Ans=Vaccum.

6. ---- is not an example of guided propagation media
Ans=Seawater.

7. When a packet has to travel from one network to another,one of the following problems may arise
Ans=Rejection of the packet.

8. The key aspect of the internet layer is ----
Ans=definition of the globally unique address.

9. A transmission media whose waves are guided along the physical path is known as -----
Ans=guided

10. The basic function of the transport layer is to accept data from ----
Ans=session layer.