多项选择题

Which of the following are considered private IPv4 addresses?（）

A. 192.16.1.1
B. 172.35.1.1
C. 225.0.0.1
D. 127.0.0.1
E. 10.1.1.1

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单项选择题

The following output occurs on Router R1. IP SLA operation 1 uses an ICMP echo operation type, with default frequency of 60 seconds. The operation pings from address 1.1.1.1 to address 2.2.2.2. Which of the following answers is true reg arding IP SLA and object tracking on R1?（） R1# show track Track 2 IP SLA 1 state State is Up 3 changes, last change 00:00:03 Delay up 45 secs, down 55 secs Latest operation return code: OK Latest RTT (millisecs) 6 Tracked by: STATIC - IP - ROUTING 0

A. The tracking return code fails after the SLA operation results in an ICMP echo failure three times.
B. The tracking return code fails after the SLA operation results in an ICMP echo failure one time.
C. After the tracking object fails, the tracking o bject moves back to an up state 45 seconds later in all cases.
D. After moving to a down state, the tracking object moves back to an OK state 45 seconds after the SLA operation moves to an OK state.

单项选择题

The following configuration commands exist only in an implementation plan document. An engineer does a copy paste of these commands into configuration mode on Router R1. Which of the following answers is m ost accurate regarding the results?（） ip sla 1 icmp - echo 1.1.1.1 source -ip 2.2.2.2 ip sla schedule 1 start - time now life forever

A. The SLA operation will be configured but will not start until additional commands are used
B. The SLA operation is not comp letely configured so it will not collect any datA
C. The SLA operation is complete and working, collecting data into the RTTMON MIB
D. The SLA operation is complete and working but will not store the data in the RTTMON MIB without more configuration