默认题库 - CCIE SP

多选题

What three major tasks are performed by a Designated Intermediate System in an ISIS pseudonodeenvironment？（）

A. Updating the pseudonode LSP
B. maintaining pseudonode link-state information
C. creating the pseudonode
D. flooding LSPs over the LAN
E. election of the pseudonode

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单选题

Which statement about L2VPN Pseudowire Switching is not true？（）

A. L2VPN Pseudowire Switching allows the user to extend L2VPN Pseudowires across an inter-AS boundary
B. L2VPN Pseudowire Switching allows the user to extend L2VPN Pseudowires across two separate MPLS networks
C. Quality of service is not supported per Pseudowire
D. L2VPN Pseudowire Switching connects two or more contiguous Pseudowires segments to from an end-to-end multihop Pseudowire
E. The Cisco MPLS Traffic Engineering tunnel selection is not supported

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多选题

Which four of these statements are restrictions for Frame Relay PVC bundles with QoS support for IP and MPLS？（）

A PVC bundle will not come up unless all the precedence， DSCP， and EXP levels are configured in thebundle.
B. A PVC bundle can perform precedence and DSCP matching at the same time
C. A PVC bundle may contain no more than sixteen PVCs
D. A PVC can be in only one PVC bundle
E. A PVC bundle cannot perform precedence and DSCP matching at the same time.
F. A PVC bundle may contain no more than eight PVCs.

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多选题

Cisco IOS XR software is partitioned into three planes： control， data， and management. Which three ofthese belong to the data plane？（）

A. XML
B. RIB
C. FIB
D. QoS
E. PFI

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多选题

Which two features prevent routing loops between the OSPF sites of a customer when the sites aremultihomed or a backdoor link is used between the sites？（）

A. sham link
B. down bit
C. virtual link
D. Site of Origin
E. domain tag

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单选题

Which statement about OSPF ASBR summary LSA is true？（）

A. It is generated by an ASBR and indicates the reachability to an ABR located in another area.
B. It is generated by ABR and indicates the reachability to an ASBR located in another A
C. It is generated by ABR and indicates reachability to itself.
D. It is generated by ABR and indicates the reachability to an ASBR located in another area.
E. It is generated by ASBR and indicates the reachability to an AB

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单选题

Which statement about Remotely Triggered Black Hole （RTBH） is true？（）

A. Route tagging is one of the techniques used by RTBH
B. It is used for BGP authentication
C. It cannot work with static routes
D. It uses extended ACLs for blocking attacks by creating a black hole
E. Before configuring RTBH LDP must be enabled on the interface

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单选题

What is TCI？（）

A. Tag Calling Interface
B. Tag Control Identifier
C. ToS Class Interface
D. Tag Control Informatio

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单选题

What does UDLD stand for？（）

A. UniDirectional Loop Detection
B. Unspecified Distribution Label Detection
C. Unified Distribution Label Direction
D. UniDirectional Link Detectio

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多选题

Which three components are included in the Cisco IOS XR infrastructure？（）

A. modular line cards
B. shelf controllers
C. route processors
D. service processors
E. distributed service card

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What three major tasks are performed by a Designated Intermediate System in an ISIS pseudonodeenvironment？（）

Which statement about L2VPN Pseudowire Switching is not true？（）

Which four of these statements are restrictions for Frame Relay PVC bundles with QoS support for IP and MPLS？ （）

Cisco IOS XR software is partitioned into three planes： control， data， and management. Which three ofthese belong to the data plane？（）

Which two features prevent routing loops between the OSPF sites of a customer when the sites aremultihomed or a backdoor link is used between the sites？ （）

Which statement about OSPF ASBR summary LSA is true？（）

Which statement about Remotely Triggered Black Hole （RTBH） is true？（）

What is TCI？（）

What does UDLD stand for？（）

Which three components are included in the Cisco IOS XR infrastructure？（）

Which four of these statements are restrictions for Frame Relay PVC bundles with QoS support for IP and MPLS？（）

Which two features prevent routing loops between the OSPF sites of a customer when the sites aremultihomed or a backdoor link is used between the sites？（）