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Gatekeeper

Table of Contents:
Definition and Overview
1. Gatekeeper Environment
2. Mandatory Features
3. Optional Features
4. Practical Applications
5. Current Role
6. Future
Self-Test
Glossary
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Self-Test
1. The gatekeeper is __________________________.
a. an application that performs essential control, administrative, and managerial functions
b. an H.323 network
c. a zone in an IP network
d. an MCU
2. Which of the following is not a function of the gatekeeper?
a. call control and call routing
b. basic telephony services such as directory services and PBX functions
c. connecting two different networks
d. control of H.323 bandwidth usage
3. The set of endpoints over which the gatekeeper has jurisdiction is called the _____________.
a. bandwidth
b. zone
c. gateway
d. RAS channel
4. The gatekeeper translates an alias address to a transport address.
a. true
b. false
5. Which of the following are optional gatekeeper functions?
a. supplementary services
b. directory services
c. call authorization/access
d. all of the above
6. The ____________ is the protocol used for supplementary services.
a. H.323
b. H.225
c. H.450
d. H.235
7. Direct mode is the preferred method for more robust gatekeeper management.
a. true
b. false
8. Call accounting is a mandatory gatekeeper function.
a. true
b. false
9. The gatekeeper can manage bandwidth by controlling the number of H.323 terminals allowed to use the network simultaneously.
a. true
b. false
10. An ISP billing system is a practical application of implementing a gatekeeper.
a. true
b. false

Glossary >>

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