单项选择题

Whichofthefollowingisacharacteristicofadatacentercore？（……

Which of the following is a characteristic of a data center core？（）

A. Server-to-server traffic always remains in the core layer.
B. The recommended practice is for the core infrastructure to be in Layer 3.
C. The boundary between Layer 2 and Layer 3 should be implemented in the aggregation layer.
D. The Cisco Express Forwarding hashing algorithm is the default， based on the IP address andLayer 4 port.
E. Core layer should run BGP along with an IGP because iBGP has a lower administrativedistance than any IGP.

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热门试题

多项选择题Whichtwoofthesemulticastdeploymentsaremostsusceptibletoattacksfromunknownsources？（）

A. ASM
B. BiDir PIM
C. PIM-SM RP
D. RP-Switchover
E. Source Specific Multicast

单项选择题WhatisthedefaultvalueoftheSPTthresholdinCiscorouters？（）

A. 0
B. 1
C. 2
D. 4
E. 16
F. infinity

多项选择题Refer to the exhibit. Which two statements are correct regarding the creation of a multicas tdistribution tree？（）

A. Each router determines where to send the JOIN request.
B. The tree will be built based on the IP address of the E2 interface on router E
C. The best path to the source will be discovered in the unicast routing table on router B
D. The best path to the source will be discovered in the unicast routing table on router C
E. The best path to the source will be discovered in the unicast routing table on router E

单项选择题TowhichofthesedoesIPmulticastsendpackets？（）

A. a single host
B. a subset of hosts
C. all hosts sequentially
D. all hosts simultaneously

单项选择题Whichoftheseportsdoessyslogusetosendmessagestoasyslogserver？（）

A. TCP 502
B. TCP 514
C. TCP 520
D. UDP 502
E. UDP 514
F. UDP 520