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Synchronous Optical Network (SONET) Transmission

Table of Contents:
Definition and Overview
1. Transport Network Role
2. Multiplexing
3. Asynchronous Hierarchy: Comparison with SONET
4. Types of Network Elements
5. SONET Hierarchy
6. Structure to Carry Data
7. SONET Network Architecture
8. When Is a Separate SONET Layer Needed?
Self-Test
Glossary
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Self-Test
1. Synchronous optical network offers cost-effective transport in the access area but not the core of the network.
a. true
b. false
2. With SONET, the traffic flowing in and out of a node is exactly equal.
a. true
b. false
3. With SONET, multiplexing is __________________.
a. statistical
b. TDM
4. Asynchronous digital hierarchy uses a ____________________ connection.
a. point-to-point
b. flexible
5. A terminal MUX is the only type of equipment available for ___________________ transmission.
a. synchronous
b. asynchronous
6. Maximum link resilience is achieved if the link and its duplicate are routed ___________________.
a. separately
b. together
7. ___________________ is the standard for North America, while ___________________ is the standard for the rest of the world.
a. SONET; SDH
b. SDH; SONET
8. The c in OC–3c stands for ____________________.
a. carrier
b. cellular
c. concatenated
d. cyclic
9. SONET is a simple replacement for asynchronous digital hierarchy.
a. true
b. false
10. Which of the following functions provide(s) the network interface for all access applications?
a. bandwidth-management
b. backbone transport
c. collector rings

Glossary >>

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