单项选择题 Network Topology Exhibit： Configuration Exhibit： NET（config）# access-list 112 deny icmp any any echo log NET（config）# access-list 112 deny imp any any redirect log NET（config）# access-list 112 deny icmp any any mask-request log NET（config）# access-list 112 permit icmp any 10.1.1.0 0.0.0.255 NET（config）# interface Fa0/1 NET（config-if）# ip access-group 112 in You work as a network administrator at networkTut.com， study the exhibit carefully. The configuration has been applied to router NET to mitigate the threat of certain types of ICMPbasedattacks while allowing some ICMP traffic to the corporate LAN to work. However， the configurationis incorrect. On the basis of the information in the exhibit， which configuration option wouldcorrectly configure router NET？（）

单项选择题 WhichstatementaboutPPPoAconfigurationiscorrect？（）

单项选择题 As a network engineer， study the exhibit carefully. Router Net is unable to establish an ADSLconnection with its provider. Which action would correct this problem？（）