As a network administrator，you have been instructed to prevent all traffic or iginating on the LAN from entering the R2 router.Which the following command would implement the access list on the interface of theR2 router？（） 
- A、access-list 101 in
- B、access-list 101 out
- C、ipaccess-group 101 in
- D、ipaccess-group 101 out
正确答案:C
答案解析:有
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