TEL102: Telecommunications 2

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Assignment 8

1. A continuously available channel is called a:
2. Generally, which WAN topology is less costly to extend and provides shorter data paths?
3. Describe the term Local Loop as it relates to the PSTN.
4. Frame Relay protocols operate at this layer of the OSI model:
5. Identify Frame Relay throughput:
6. Describe the channel differences between ISDN BRI and PRI.
7. Which T-carrier is best suited for a company with low transmission requirements?
8. How do T-carrier wire pairs terminate at the customer’s building?
9. What is the function of a T-carrier multiplexer?
10. A technology that offers more throughput in one direction than the other is called:
11. Is broadband cable symmetrical or asymmetrical?
12. Which type of dedicated connection is considered more secure, DSL or broadband cable?
13. What converts incoming Ethernet frames into ATM cells?
14. What SONET device combines the individual SONET signals on the transmitting end?
15. Identify the contemporary tunneling protocol that is more commonly used:

Know the following terms:

• CIR
• DSLAM
• HFC
• PVC/SVC