默认题库 - CCIE SP

多选题

Which three statements about the Cisco MPLS TE Fast Reroute （FRR） process are true？（）

A. TE tunnels that are configured with the FRR option cannot be used as backup tunnels.
B. TE tunnels that are configured with the FRR option can be used as backup tunnels.
C. The backup tunnel that is used to protect a physical interface must have a valid IP address configured.
D. Interfaces must use MPLS global label allocation.
E. The source IP address of use backup tunnel and the merge point （MP） should not be reachable.

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多选题

Which two statements about MPLS point-to-multipoint traffic engineering （P2MP TE） are true？（）

A. P2MP TE uses an OSPF extension that is different from the OSPF extension that is used in P2P TE
B. Loose path is not supported in P2MP TE
C. Multiple IP multicast groups can map to one P2MP tunnel
D. Affinity is not supported in P2MP TE
E. P2MP TE uses Constrained Shortest Path First （CSPF） to calculate path

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单选题

How would you characterize the source and type in a denial of service attack on a router？（）

A. By perfornubg a show ip interface to see the type and source of the attack based upon the access-listmatches
By performing a show interface to see the transmitted load "txload" and receive load "rxload" ；if the interface utilization is not maxed out ，there is no attack underway
C. By setting up an access-list to permit all ICMP，TCP，and UDP traffic with the log or log-input commands，then use the show access-list and show log commands to determine the type and sourceof attack
D. By applying an access-list to all incoming and outgoing interfaces，turning off route-cache on all interfaces，then，when telnetting into the router perform a debug IP packet detail

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单选题

Which of the following IOS commands cause syslog messages to be stamped with time and dates？（）

A. service timestamps log datetime
B. logging trap datetime
C. service logging datetime
D. logging datetime on
E. logging timestamps o

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多选题

Which of the following comparison of Control Plane Policing （CoPP） with Receive ACL（Racl） is correct？（）

A. CoPP protects against IP spoofing；Racl protects against DoS attacks.
B. CoPP can not use named access lists；Racl can use named access lists
CoPP applies to a dedicated control plane interface；Racl applies to all interfaces.
D. CoPP needs a AAA server，Racl does not need a AAA server
E. CoPP supports rate limits；Racl does not support rate limit

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多选题

In relation to MPLS Multicast VPN， which three statements about multicast distribution （MDT） groups aretrue？（）

A. Default MDT groups are used for PIM control traffic， low-bandwidth sources， and flooding of sparse mode traffic.
B. MDTs are built in customer networks
C. Data MDT groups are used for high-bandwidth sources to reduce replication to uninterested PEs.
D. MDTs are built in provider networks
E. The number of MDTs depends on PIM modes of MDT groups.

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单选题

What is the default BGP scanner time？（）

A. 10 minutes
B. 5 minutes
C. 120 seconds
D. 60 seconds
E. 30 minute

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单选题

What does the protocol field inside the PPP frame indicate？（）

A. the protocol used to determine the authentication method
B. the protocol used to identify the data in the Information field
C. the protocol used to carry the PPP frame
D. the protocol used to decode the FCS field
E. the protocol used to detect the number of padding byte

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单选题

What is jitter？（）

A. The total end-to-end delay
B. The variations of delay.
C. The delay caused by placing the bits on the wire.
D. The time it takes for the bits to transit the physical media.

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多选题

Which three statements about anycast RP are true？（）

A. MSDP is running between anycast RPs
B. Anycast RP provides redundancy and load-sharing capabilities
C. Multicast BGP is running between anycast RPs
D. In anycast RP，two or more RPs are configured with the same multicast IP address on loopback interfaces
E. In anycast RP，two or more RPs are configured with the same unicast IP address on loopback interface

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Which three statements about the Cisco MPLS TE Fast Reroute （FRR） process are true？（）

Which two statements about MPLS point-to-multipoint traffic engineering （P2MP TE） are true？ （）

How would you characterize the source and type in a denial of service attack on a router？（）

Which of the following IOS commands cause syslog messages to be stamped with time and dates？（）

Which of the following comparison of Control Plane Policing （CoPP） with Receive ACL（Racl） is correct？（）

In relation to MPLS Multicast VPN， which three statements about multicast distribution （MDT） groups aretrue？ （）

What is the default BGP scanner time？（）

What does the protocol field inside the PPP frame indicate？（）

What is jitter？（）

Which three statements about anycast RP are true？ （）

Which two statements about MPLS point-to-multipoint traffic engineering （P2MP TE） are true？（）

In relation to MPLS Multicast VPN， which three statements about multicast distribution （MDT） groups aretrue？（）

Which three statements about anycast RP are true？（）