默认题库 - CCIE SP

单选题

A Successor is（）.

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

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单选题

Routes redistributed into an OSPF ASBR are which LSA type？（）

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

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多选题

When provisioning for Interactive-Video（e，g，video conferencing traffic）which three statementsdepicts the correct requirements？（）

A. Loss should be no more than 1 percent.
B. One-way latency should be no more than 150 ms
C. Jitter should be no more than 30 ms
D. Loss should be no more than 3 percent
E. One-way latency should be no more than 150/2=75 ms
F. Jitter should be no more than 300 m

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多选题

Which two statements about forwarding equivalence class （FEC） are true？（）

A. FEC might correspond to a destination IP subnet， but it might also correspond to any traffic class that the edge LSR considers significant.
B. FEC is a group of IP packets that is forwarded over a different path， but with the same forwarding treatment.
C. FEC is a group of IP packets that is forwarded over the same path， and with the same forwarding treatment.
D. FEC is a group of IP packets that is forwarded over a different path， but with the different forwarding treatment.
E. FEC is a group of IP packets that is forwarded over the same path， but with a different forwarding treatment

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多选题

In which two ways does the BGP graceful restart capability preserve prefix information during a restart？（）

A. The peer router sends an end-of RIB message to the restarting router
B. The peer router immediately removes the BGP routes that it learned from the restarting router from its BGP routing table
C. The restarting router does not remove any stale prefixes after the timer for stale entries expires
D. The router establishes BGP sessions with other routers and relearns the BGP routes from other routers that are also capable of graceful restart. The restarting router waits to receive updates from the neighboring routers. When the neighboring routers send end-of-RIB messages to indicate that they are done sending updates， the restarting router starts sending its own updates
E. The restarting router removes any stale prefixes after the timer for stale entries expire

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多选题

Which three of these statements about PPPoE are true？（）

A. PPPoE can provide a host with access to a destination over Ethernet. You can have only one PPPoE session per PVC
B. You must install PPPoE client software on all hosts that connect to the Ethernet segment. This means that the access provider must maintain a CPE
C. You cannot use PPPoE with Cisco Service Selection Gateway
D. PPPoE implementation is susceptible to broadcast storms and possible denial-of-service attacks
E. Per-session accounting is possible， which allows the service provider to charge the subscriber based on session time for various services offered. The service provider can also require a minimum access charge

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单选题

Based on the following output in R1， which statement is true？（）

A. If a labeled packet arrives with the top most label of 17， it will be replaced with label 19 and sent out on Ethernet 0/0 interface.
B. If a labeled packet arrives with the top most label of 19， it will be replaced with label 17 and sent out on Ethernet 0/0 interface.
C. If a labeled packet arrives with the top most label of 17， all the labels will be removed and a clear IP Packet is sent to Next Hop 192.168.0.14 on Ethernet 0/0.
D. None of the above.

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单选题

Which of the following IOS features can prevent IP spoofing attacks？（）

A. PPP over Ethernet
B. Cisco Express forwarding
C. MPLS traffic Engineering
D. IS-IS routing
E. Unicast Reverse Path Forwarding（uRPF）

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单选题

What is the default SPF throuttle timer in OSPF？（）

A. 0ms
B. 10ms
C. 500ms
D. 1s
E. 5s
F. 30

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多选题

Which two statements best describe EtherChannel？（）

A. EtherChannel technology helps aggregate traffic grouping multiple，full-duplex point-to-point linkstogether
B. EtherChannel technology is based on the 802.1 IEEE stand
C. EtherChannel can aggregate up to 800 Mbps，8 Gbps，or Gbps of aggregate bandwidth for a Fast EtherChannel，Gigabit EtherChannel，or 10 Gigabit EtherChannel connection respectively
D. EtherChannel is defined for Rapid Spanning Tree for faster convergence

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