Section 3.1 Flashcards
What is Jitter?
the average variance in delay between data packets
What is an SNMP trap?
an event or condition that triggers a notification to the SNMP system
What is an OID?
a series of numbers and dots that identify device information and statistics in an SNMP network
MIB
Management Information Base
What is a MIB?
an organized central database of all SNMP connected devices
OIDs
Object Identifiers
What are 5 things that traffic logs track?
IP
ports
protocols
bandwidth
patterns
What do audit logs track?
User actions
What is syslog?
a protocol for centralized log management
What are severity levels?
Syslogs’ prioritization on a scale of 0 to 7, where 0 is most important
CRCs
Cyclic Redundancy Checks
What are CRCs?
a code that checks ethernet frames for errors upon receipt
What does a CRC error indicate?
a bad cable or interface
What causes encapsulation errors?
switch configuration mismatches
What are Runts?
ethernet frames less than 64 bytes
What are Giants?
ethernet frames greater than 1,518 bytes
What is a Baseline?
normal or expected behavior
What metric is used to define Uptime and Downtime?
Uptime: percentage
Downtime: time/month
Where are SNMP traps sent?
to the SNMP manager (not MIB)
