[单选题]
Which Cisco IOS diagnostics command can disrupt the operation of a router under high-load conditions?
A. show running-config
B. show processes cpu
C. debug all
D. logging host ip address

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[多选题]
Which two privileged mode cisco ios commands can be used to determine a cisco router chassis serial
Number?(choose two)
A. show inventory
B. show flash:filesys
C. dir flash:|include chassis
D. show diag
E. show controllers

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[单选题]
Which cisco ios command can help to determine the timing of various debug events,relative to each other,
When you are debugging a complicated router issue?
A. service timestamps debug datetime msec
B. show clock detail
C. clock calendar-valid
D. service timestamps log datetime msec

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[单选题]
When upgrading the IOS image, the network administrator receives the exhibited error message. What
Could be the cause of this error?
A. The new IOS image is too large for the router flash memory.
B. The TFTP server is unreachable from the router.
C. The new IOS image is not correct for this router platform.
D. The IOS image on the TFTP server is corrupt.
E. There is not enough disk space on the TFTP server for the IOS image.

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[多选题]
Which router IOS commands can be used to troubleshoot LAN connectivity problems? (Choose three.)
A. ping
B. tracert
C. ipconfig
D. show ip route
E. winipcfg
F. show interfaces

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[多选题]
Which two Cisco IOS commands ,used in troubleshooting,can enable debug output to a remote location?(choose two)
A. no logging console
B. terminal monitor
C. logging host ip-address
D. snmp-server enable traps syslog
E. show logging | redirect flash:output.txt

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[多选题]增益的目的就是（）
A.将回波升高
B.将回波降低
C.对回波信号的衰减量减少

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[简答题]开环差模电压增益A0d, 输⼊失调电压U0s和输⼊失调电流Ios是集成运算放⼤器.简称集成运放)的⼏个主要参数, 试说明其含义?

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[简答题]开环差模电压增益A0d, 输⼊失调电压U0s和输⼊失调电流Ios是集成运算放⼤器.简
称集成运放)的⼏个主要参数, 试说明其含义?