单项选择题

Which command would you type to see a concise display of which interfaces are up and which are down?（）

A.show interfaces brief
B.show interfaces status
C.show ip interface brief
D.show interfaces terse

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单项选择题

In Ethernet networks, duplex mismatches will lower performance. Which error statistics can be seen if a duplex mismatch is present?（）

A.collisions on the full-duplex side; runts on the half-duplex side
B.collisions on the full-duplex side; collisions on the half-duplex side
C.collisions on the half-duplex side; framing errors on the full-duplex side
D.collisions on the half-duplex side; giants on the full-duplex side

多项选择题

To troubleshoot interface problems, you can use both the disable command and the deactivate command. Which two statements are correct?（）

A.If the interface is disabled, the logical unit will administratively shutdown.
B.If the interface is deactivated, the physical interface will administratively shutdown.
C.If the interface is deactivated, the interface configuration is ignored during commit.
D.If the interface is disabled, the logical unit configuration is ignored during commit.

多项选择题

If a SONET/SDH interface transmit link fails between two JUNOS devices, which two alarms or defects would be seen on those devices?（）

A.LOS
B.REI
C.BIP-B3
D.RDI