Which two of the following are designated fields for MAC tunneling protocol（802.1 ah）？（）

单项选择题ASuccessoris（）.

A.A neighbor that has met the feasibility condition
B.A neighbor that has met the feasibility condition and has the lowest cost path towards the destination
C.Any neighbor that is in the path towards the destination.
D.Any neighbor that is in the path towards the destination and whose reported distance equals thefeasible distance

单项选择题RoutesredistributedintoanOSPFASBRarewhichLSAtype？（）

A.LSA type 1
B.LSA type 2
C.LSA type 3
D.LSA type 4
E.LSA type 5
F.LSA type 6

单项选择题Whatisusedaslabelincell-basedMPLS？（）

A.VPI
B.VCI
C.VPI and VCI
D.Specific 4 bytes label
E.None of above

单项选择题WhichofthefollowingIOScommandscandetectwhethertheSQLslammerviruspropagatesinyournetworks？（）

A.access-list 100 permit any any udp eq 1434
B.access-list 100 permit any any udp eq 1434 log
C.access-list 110 permit any any udp eq 69
D.access-list 110 permit any any udp eq 69 log
E.None of above.

单项选择题Whatstatementistrue？（）

A.Link Control Protocol（LCP） is used for basic PPP link setup and operation
B.Link Control Protocol（LCP） is used for denying PPP connections to unauthorized devices.
C.Link Control Protocol（LCP） for PPP is synonymous to ARP for Ethernet.
D.None of the above