Computer Network Management — Test 4

Correct Answer: B. B. False
Explanation: The topology of a network depends on the interconnections between routers and switches. Hubs are usually not SNMP-manageable and are not included in topology discovery.

Correct Answer: A. A. Cmip
Explanation: Functional modules communicate with the NEs through the protocol layer. This layer may support a number of common management protocols such as various versions of SNMP, XML, CMIP, and also proprietary protocols.

Correct Answer: C. C. It is used to monitor the loss and signal-to-nosie ratio in the trunk transmission system in bell system
Explanation: The trunk test system is used to monitor the loss and signal-to-noise ratio in the trunk transmission system in Bell System. A trunk is a logical entity linking two switching offices.

Correct Answer: A. A. Osi
Explanation: TMN is necessary to extend the private and proprietary, but well-developed network management systems, and make them interoperable. It is to be kept in mind that TMN had been developed based on OSI management principles.

Correct Answer: B. B. False
Explanation: A logical entity, used to link two switching offices is known as Trunk. Each and every trunk in the network is inspected for their quality check. It is extremely necessary that a trunk qualifies the minimum criteria set for quality control otherwise they are removed from service.

Correct Answer: C. C. Security management
Explanation: The role of operations systems in the OAMP of telecommunication network is crucial. They are part of the telecommunications network management activities and fall under the performance management function of the network management that is defined under the OSI model.

Correct Answer: B. B. False
Explanation: The function blocks in are connected with interfaces designated by x, q3, qx and f. When a Web browser interfaces with a Web-based management system it is accessing an f-reference point. When a network management system automatically creates a trouble ticket in a trouble tracking system, it is communicating via an x-reference point.

Correct Answer: B. B. Wsf
Explanation: M.3010 defines TMN architecture made up of five function blocks: operations systems function, network element function (NBF), mediation function (Mf), workstation function (WSF), and Q-adapter function (QAF). The TMN WSF provides an interface between human personnel and TMN activities. More specifically, this function addresses the presentation aspect.

Correct Answer: A. A. Q3
Explanation: The function blocks in are connected with interfaces designated by x, q3, qx, and f. These are called TMN service interfaces or simply, TNM interfaces. An interface between a management agent embedded in a network element and a network management system will be a q3 reference point.

Correct Answer: B. B. False
Explanation: Information models specified by SNMP and OSI management deal with the management of network elements. The TMN information model has been used in specific technology such as ATM and SDH/SONET.