默认题库 - CCIE SP

单选题

What are the default values for GRE tunnel keeplive time and number of retries？（）

A. 5 seconds and 3 retries
B. 10 seconds and 5 retries
C. 10 seconds and 3 retries
D. 20 seconds and 5 retries
E. 5 seconds and 5 retrie

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单选题

What is the default maximum transmission unit on the Cisco router ATM interface？（）

A. 4470 bytes
B. 1516 bytes
C. 9288 bytes
D. 1500 bytes
E. 1492 byte

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单选题

In which Cisco IOS configuration mode is the route distinguisher （RD） configured？（）

A. R1（config-route-at）#
B. R1（config-route-map）#
C. R1（config-it）#
D. R1（config-vrf）#
E. R1（config）#
F. R1（router）#

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多选题

Which of the following statements about MD5 Routing Updates authentication is valid？（）

A. The MD5 algorithm inputs the routing updates of arbitrary length and outputs a 128-bit hash
B. The MD5 algorithm inputs the routing updates of every 64bit length and outputs an 8-bit hash
C. Multiple keys are supported
D. Routing updates packets are delivered in encrypted messages
E. Shared secret keys are delivered in encrypted message

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单选题

Which information is carried in the OSPFv3 intra-area Prefix LSA？（）

A. all link-local addresses
B. all IPv6 prefix and topology information that OSPFv2 included in Router LSA and Network LSA
C. list of options associated with the link to all other routers attached to the link
D. all prefix-specific information that OSPFv2 included in Router LSA and Network LSA

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单选题

Assume that the PEs are separated by Multiple P routers.How many labels should the ingress PE push for BPE functionality？（）

A. 1
B. None
C. 3
D. 2
E. It depends on the numbers of hops between the ingress and egress PE

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多选题

Which two statements are true about RPF checks in MSDP（Multicast Source Discovery Protocol）？（）

A. It prevents message looping，Session Advertisement（SA）messages must be RPF checked
B. RPF check should be done against the route to the Rendez-vous Point of the corresponding PIM-SM domain，which originated the SA
C. RPF checking Session Advertisement（SA）messages will cause message looping
D. RPF check should be done against the route to the source S of the corresponding PIM-SM domai

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多选题

Which two statements about the bgp deterministic-med and bgp always-compare-med commands are true？（）

A. The bgp deterministic-med command is used to influence the BGP route selection process to cause the MED attribute to have higher precedence over the AS path length
B. The bgp always-compare command is used to influence the BGP route selection process to cause the MED attribute to have higher precedence over the AS path system
C. Enabling the bgp deterministic-med command ensures the comparison of the MED variable when choosing routes advertised by different peers in the same autonomous system.
D. Enabling the bgp always-compare-med command ensures the comparison of the MED variable for paths from neighbors in different autonomous systems.
E. The bgp deterministic-med and bgp always-compare-med commands are enabled by defult.

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单选题

Which BGP community is used to prevent the advertisement of the BGP prefix to other BGP peers？（）

A. additive
B. none
C. no-export
D. no-advertise
E. local-a

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多选题

Which three of these statements about the IP service level agreement （SLA） sender are true？（）

A. SLA sender target can be an IP host
B. SLA sender sends a probe packet and a response probe packet
C. SLA sender sends a probe packet
D. SLA sender target must be a router
E. SLA sender target can be an IP SLA responder

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What are the default values for GRE tunnel keeplive time and number of retries？（）

What is the default maximum transmission unit on the Cisco router ATM interface？（）

In which Cisco IOS configuration mode is the route distinguisher （RD） configured？（）

Which of the following statements about MD5 Routing Updates authentication is valid？ （）

Which information is carried in the OSPFv3 intra-area Prefix LSA？（）

Assume that the PEs are separated by Multiple P routers.How many labels should the ingress PE push for BPE functionality？（）

Which two statements are true about RPF checks in MSDP（Multicast Source Discovery Protocol）？（）

Which two statements about the bgp deterministic-med and bgp always-compare-med commands are true？（）

Which BGP community is used to prevent the advertisement of the BGP prefix to other BGP peers？（）

Which three of these statements about the IP service level agreement （SLA） sender are true？ （）

Which of the following statements about MD5 Routing Updates authentication is valid？（）

Which three of these statements about the IP service level agreement （SLA） sender are true？（）