单项选择题

What is used as label in cell-based MPLS ？（）

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

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单项选择题

Which of the following IOS commands can detect whether the SQL slammer virus propagates in yournetworks？（）

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

What statement is true？（）

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

单项选择题

What Cisco IOS feature examines packets received to make sure that the source address and interfaceare in the routing table and matck the interface that the packet was received on？（）

A.MPLS Traffic Engineering
B.Dynamic access-lists
C.Authentication
D.Receive ACL
E.Unicast RPF

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