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Block 1 Unit 9

Network Monitoring

QuestionAnswer
WHAT? are used by network administrators typically to monitor availability of network services, functionality of network interfaces, status of critical hardware systems, CPU, memory, or bandwidth. Network monitoring systems
List three other statistics a NMS provides for servers and devices on a network Service or device availability, network response time, network route analytics
List five basic functions of the NMS Discover, Map, Monitor, Alert, Report
Which basic function of the NMS is to find the devices on the network and how they are connected? Discover
When a network monitoring system completes the discovery process, it automatically assigns an appropriate WHAT? to each discovered device on the discovered WHAT? Device Role and Device List
Devices roles are WHAT? and WHAT? specific Types and Vendor
Which basic function of the NMS is to visualize your network? Map
NMSs generate WHAT? a powerful first response tool that enables network administrators to visualize their networks, display devices and up-to-date status. Network maps
Which basic function of the NMS keeps an eye on your network? Monitor
List the “big 5” network administrators want to monitor for any device on the network Ping, availability and latency, CPU, memory, disk and interface utilization
Which basic function of the NMS notifies network administrators when something goes wrong? Alert
WHAT? based alerting enables network administrators to respond to problems before they impact users, or applications Threshold
WHAT? is an automated messaging system that sends messages when an event affects a network device. Syslog
Which basic function of the NMS deals with real-time and historical reporting? Report
NMSs deliver monitoring information in webpages called WHAT? made up of WHAT? views dashboards and turn-key
An WHAT? detects anomalies with the aim of catching hackers before they do real damage to a network. Intrusion Detection System and do real damage to a network
IDS WHAT? WHAT? and WHAT? the security infrastructure for signs of attacks in progress. Scan, Audit, Monitor
List two ways that IDSs work Looking for signatures of known attacks or deviations from normal activity.
WHAT? is one of the most widely used protocols for monitoring SNMP
List the key functions of the SNMP management tool Querying agents, getting replies from agents, establishing variables in agents, and recognizing asynchronous events
Objects queried by SNMP are maintained in a WHAT? Management Information Base
What does a MIB define? All the information that is exposed by the managed device
What does a MIB define? All the information that is exposed by the managed device
The objects in a MIB are catalogued and has its own, unique WHAT? Object Identifier
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