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Computer Network: Physical Layer
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Computer Network: Physical Layer
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25 Questions

1. The physical layer is responsible for __________
2. The portion of physical layer that interfaces with the media access control sublayer is called ___________
3. The required resources for communication between end systems are reserved for the duration of the session between end systems in ________ method.
4. As the resources are reserved between two communicating end systems in circuit switching, ___________ is achieved.
5. The physical layer provides __________
6. What are the Methods to move data through a network of links and switches?
7. Bits can be sent over guided and unguided media as analog signal by ___________
8. If there are N routers from source to destination, the total end to end delay in sending packet P(L-> number of bits in the packet R-> transmission rate) is equal to ______________
9. The physical layer translates logical communication requests from the ______ into hardware specific operations.
10. The physical layer is concerned with ___________
11. In asynchronous serial communication the physical layer provides ___________
12. Most packet switches use this principle ____________
13. Fiber optics posses following properties __________
14. UTP is commonly used in __________
15. Which transmission media provides the highest transmission speed in a network?
16. Which of the following is not an application layer service?
17. Radio channels are attractive medium because __________
18. Which of this is not a guided media?
19. A single channel is shared by multiple signals by ____________
20. Geostationary satellites ___________
21. Terrestrial radio channels are broadly classifed into _____ groups.
22. If an Optical Carrier is represented as OC-n, generally the link speed equals(in Mbps) __________
23. In _________ systems, resources are allocated on demand.
24. A local telephone network is an example of a _______ network.
25. Coaxial cable consists of _______ concentric copper conductors.

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