Computer Network Management — Test 3

Correct Answer: B. B. Trouble ticket administration
Explanation: Fault management involves the detection and isolation of the problem causing the failure in the network. A trouble ticket is generated and followed up for resolution of the problem using a trouble ticket administration system. Thus, a trouble ticket administration helps in tracking network problems.

Correct Answer: B. B. False
Explanation: There are five components of network management: Configuration Management, Fault Management, Performance Management, Security Management, and Accounting Management. Accounting management looks after the cost allocation of the usage of a network. The performance behavior and the traffic of the network are managed by performance management.

Correct Answer: B. B. It is isolation of network problems
Explanation: An NMS constantly monitors and displays in real-time major and minor alarms based on the severity of failures. Reconfiguration is a part of configuration management. In several failure situations, the network could do this automatically. This network feature is called self-healing.

Correct Answer: B. B. Active, passive
Explanation: Active and passive are the two ways of performing the tasks of detection and isolation of problems in network. Passive fault management helps in collecting alarms from network devices whereas Active Fault Management monitors the health of these devices.

Correct Answer: B. B. Ifconfig
Explanation: The command ifconfig on a UNIX system is used to assign an address to a network interface or to configure network interface- parameters. Usually, one needs to be a super-user (su) in UNIX to set interface parameters.

Correct Answer: D. D. By finding all the hosts on a local area network (LAN) using a broadcast ping on the LAN
Explanation: Dig or nslookup can help when one wants to find all the hosts on a local area network (LAN). This can be done using a broadcast ping on the LAN. We need to know the IP address to execute this command, which we may not know. However, if we know a host name on the LAN, we could obtain the IP address using nslookup.

Correct Answer: C. C. Domain name server
Explanation: The UNIX commands, nslookup, host and dig, are useful for obtaining names and addresses on hosts and domain name servers. A domain name server provides the service of locating IP addresses.

Correct Answer: B. B. False
Explanation: One of the most basic tools is ping (Packet lnternet Groper). A frequent use of it is when an execution of a command on a remote station fails. As one of the first diagnostics, we want to ensure that the connection exists, for which the ping utility is executed to the remote host. If it fails, then there is a problem with the link. If it passes, then the trouble is with either the application or something else.

Correct Answer: D. D. Raw throughput
Explanation: Bing (point to point bandwidth ping) is a using useful tool, heavily based on ping. The bing utility determines the raw throughput of a link by calculating the difference in round-trip times for different packet sizes from each end of the link.

Correct Answer: B. B. False
Explanation: SNMP MIB tools are of three types: (I) SNMP MIB browser; (2) a set of SNMP command-line tools; and (3) Linux/FreeBSD-based tool. An SNMP MIB browser is a user-friendly tool that can be accessed from public software libraries or commercially purchased.