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What information is used by a switch to forward an Ethernet frame to its destination?（）
- A、IP address
- B、destination MAC address
- C、ARP table entry
- D、FCS checksum
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单选题What does the protocol field inside the PPP frame indicate？（）A
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单选题What information is used by a switch to forward an Ethernet frame to its destination?（）A
IP addressB
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FCS checksum
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单选题What information is displayed by the command cat/proc/dma？（）A
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reth interfaces are the same as physical interfaces.C
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单选题To ensure voice packets are kept within the Committed Information Rate （CIR） of a Frame Relaylink， what should be used in the CPE？（）A
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It is used for signaling on-hook and off-hook statusB
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ftpC
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AS numbers are used by BGP （Border Gateway protocol ） to exchange IP routing information with neighboring ASC
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All of the Above
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AAU2B
AAL3C
AAL4D
AAL5
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单选题What is true of standard access control lists when applied to an interface to control inbound or outbound traffic？（）A
The best match of the ACL entries will be used for granularity of control.B
They use source IP information for matching operations.C
They use source and destination IP information for matching operations.D
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单选题To ensure voice packets are kept within the Committed Information Rate (CIR) of a Frame Relay link, what should be used in the CPE?（）A
prioritizationB
classificationC
fragmentationD
traffic shaping
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多选题What three pieces of information can be used in an extended access list to filter traffic (Choose three.)（）。AprotocolBVLAN numberCTCP or UDP port numbersDsource switch port numberEsource IP address and destination IP addressFsource MAC address and destination MAC address
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单选题What frame type is used to signal TSPEC reservation from a client?（）A
RSVPB
ADDTSC
802.11 association information elementsD
WMM capabilities exchange
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