多項選擇題What are three reasons to collect Netflow data on a company network?（）

A.To identify applications causing congestion
B.To authorize user network access
C.To report and alert link up / down instances.
D.To diagnose slow network performance, bandwidth hogs, and bandwidth utilization.
E.To detect suboptimal routing in the network.
F.To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service.


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1.多項選擇題Which three statements about the features of SNMPv2 and SNMPv3 are true?（）

A.SNMPv3 enhanced SNMPv2 security features
B.SNMPv3 added the Inform protocol message to SNMP
C.SNMPv2 added the Inform protocol message to SNMP
D.SNMPv3 added the GetBulk protocol messages to SNMP
E.SNMPv2 added the GetBulk protocol message to SNMP
F.SNMPv2 added the GetNext protocol message to SNMP

2.單項選擇題What command instructs the device to timestamp Syslog debug messages in milliseconds?（）

A.service timestamps log datetime localtime
B.service timestamps debug datetime msec
C.service timestamps debug datetime localtime
D.service timestamps log datetime msec

3.單項選擇題What is the default Syslog facility level?（）

A.local4
B.local5
C.local6
D.local7

5.多項選擇題Which three statements about Syslog utilization are true?（）

A.Utilizing Syslog improves network performance.
B.The Syslog server automatically notifies the network administrator of network problems.
C.A Syslog server provides the storage space necessary to store log files without using router disk space.
D.There are more Syslog messages available within Cisco IOS than there are comparable SNMP trap messages.
E.Enabling Syslog on a router automatically enables NTP for accurate time stamping。
F.A Syslog server helps in aggregation of logs and alerts.