单项选择题
A. no log here B. no log fields C. no log filters D. no log severity
LogmessagesareappearingveryquicklyontheconsoleofyourERX...
单项选择题Log messages are appearing very quickly on the console of your ERX Edge Router. Which Privileged Exec command disables real-time console logging？（）
A. no log here B. no log console C. destination console severity 7 D. destination console logging off
Whichcommanddisplaystheresultsofaloopbacktestyouexecute...
单项选择题Which command displays the results of a loopback test you executed on a CT3 line module in slot 5，port 0，t1 number 4？（）
A. show interface 5/0：4 B. show interface 5/0：4/1 C. show controllers t3 5/0：4 D. show controllers t3 5/0：4/1
WhatisthepurposeoftheOSPFhellopacket？（）A. advertises re...
单项选择题What is the purpose of the OSPF hello packet？（）
A. advertises reachable networks B. acknowledges the receipt of update packets C. establishes and maintains neighbor relationships D. describes the contents of the link-state database
