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Element Management Systems (EMSs)

Table of Contents:
Definition and Overview
1. Position of the EMS in the Telecommunication Network Architecture
2. The Role of EMSs in the Five-Layer TMN Hierarchy
3. The TMN FCAPS Model of OSS Tasks
4. A Four-Function EMS Model
5. Service Provisioning
6. Service Assurance
7. EMS and NE Operations Support
8. Automation Enabler
9. Network EMS Software Architecture
10. EMS–Related Standards and Standards Organizations
11. Considerations of Network-Element-Vendor-Provided Versus Independently Developed EMSs
Self-Test
Glossary
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Self-Test
1. The EMS manages the entire telecommunications network.
a. true
b. false
2. The TMN architecture recommends that specific aspects of network management functions be implemented within specific layers of the framework.
a. true
b. false
3. The EML is the second layer of the open systems interconnection (OSI) protocol stack.
a. true
b. false
4. EMSs are required to manage the copper loop from the central office to the subscriber.
a. true
b. false
5. Only the EMS is exposed to the full information content of the NEs in a given domain.
a. true
b. false
6. Any EMS can be used to manage any type of NE.
a. true
b. false
7. Inventory management in the EMS domain is the maintenance of records of the location, identity, version, and equipage of all NEs in the domain.
a. true
b. false
8. To provide comprehensive service assurance, the EMS contains the detailed history of all faults and events within its domain as a source for service assurance applications in the other TMN layers.
a. true
b. false
9. Performance data collection is directly related to QoS assurance.
a. true
b. false
10. The TMN architecture includes _________________ layer(s).
a. element management
b. business management
c. service management
d. network management
e. all of the above
11. Which of the following protocols is a viable alternative to the Q3/CMIP protocol for communication between the EMS and the NMS?
a. TCP/IP
b. CORBA
c. RS–232
d. X.25
e. all of the above
12. Which of the following message protocols can be used as the NEL–to–EML protocol?
a. CORBA
b. CMISE
c. TL1
d. SNMP
e. all of the above
13. Inventory management may include the collection of _________________.
a. serial numbers of circuit packs
b. NE software version
c. NE identifier
d. all of the above
e. none of the above
14. Configuration management may include _________________.
a. measuring the number of errors per packet
b. providing remote access to network operators
c. repairing the network resources
d. setting up a cross-connect
e. none of the above
15. Inventory data on both equipment and the service capacity (e.g., cross-connect termination availability by type of circuit) can be used to _________________.
a. switch from main to backup systems
b. detect faults in the network
c. forecast need for service provisioning changes
d. detect degrading circuits
e. none of the above
16. A northbound interface from an EMS is one that _______________.
a. connects to an NMS
b. provides a generic, normalized information model to an NMS
c. allows an NMS to control NEs through the EMS
d. all of the above
e. none of the above
17. Competition is driving network operators to use operations tools that _______________.
a. have elaborate, multicolored graphics
b. are based on the most expensive computing platforms
c. have remote access capabilities
d. are intuitive and task-oriented
e. use command-line interfaces
Glossary >>

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