When are packets processed in an inbound access list?()A、Before they are routed to an outbound interface.B、After they are routed for outbound traffic.C、After they are routed to an outbound interface while queuing.D、Before and after they are routed to an outbound interface.E、Depends on the configuration of the interfaceF、None of the above
When are packets processed in an inbound access list?()
- A、Before they are routed to an outbound interface.
- B、After they are routed for outbound traffic.
- C、After they are routed to an outbound interface while queuing.
- D、Before and after they are routed to an outbound interface.
- E、Depends on the configuration of the interface
- F、None of the above
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People tend to make mistake when ____.A. they perform. several challenging tasks at a time.B. new messages are processed one after anotherC. their relationships with others are affectedD. the tasks require little thought
Which of the following is true of an ACL when a packet matching an ACE is found?() A. The matching ACE is skipped to allow all other ACEs to be examined.B. The matching ACE is processed and then the last ACE is examined.C. The matching ACE is processed and then the next ACE is examined.D. The matching ACE is processed and the next packet is examined
When are packets processed in an inbound access list?() A. Before they are routed to an outbound interface.B. After they are routed for outbound traffic.C. After they are routed to an outbound interface while queuing.D. Before and after they are routed to an outbound interface.E. Depends on the configuration of the interfaceF. None of the above
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Which of the following is true of an ACL when a packet matching an ACE is found?()A、The matching ACE is skipped to allow all other ACEs to be examined.B、The matching ACE is processed and then the last ACE is examined.C、The matching ACE is processed and then the next ACE is examined.D、The matching ACE is processed and the next packet is examined
When troubleshooting a network, the output of the command show interfaces indicates a large number of runts. What is a runt?()A、the number of packets that are discarded because they exceed the maximum packet size of the mediumB、errors created when the CRC generated by the originating LAN station or far-end device does not match the checksum calculated from the data received.C、the number of packets that are discarded because they are smaller than the minimum packet size of the mediumD、the number of received packets that were ignored by the interface because the interface hardware ran low on internal buffersE、the number of times that the interface requested another interface within the router to slow down
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Which mechanism does OSPFv3 use when the router LSA is too big to be sent out?()A、It relies on IPv6 to do the fragmenting.B、It splits the LS Update packet into smaller packets.C、It splits the LSA into smaller router LSA packets.D、It produces an error.
When running a Windows server, which option is used with the ping command to define the number of packets transmitted?()A、 -nB、 -aC、 -rD、 -v
单选题When troubleshooting a network, the output of the command show interfaces indicates a large number of runts. What is a runt?()Athe number of packets that are discarded because they exceed the maximum packet size of the mediumBerrors created when the CRC generated by the originating LAN station or far-end device does not match the checksum calculated from the data received.Cthe number of packets that are discarded because they are smaller than the minimum packet size of the mediumDthe number of received packets that were ignored by the interface because the interface hardware ran low on internal buffersEthe number of times that the interface requested another interface within the router to slow down
多选题Which two statements best describe spanning-tree BPDU processing for a blocking port?()ABPDUs that enter a blocking port are discarded.BBPDUs that enter a blocking port are processed.CLoopguard puts an interface into a loop-inconsistent state when BPDUs stop being received on a blocking port.DBPDUs are only processed on forwarding ports.
单选题When clearing customs for a foreign voyage,which of the following is processed at the custom’s house and returned to the vessel().AShipping ArticlesBTraveling Curio ManifestCOfficial LogbookDCargo Gear Register
多选题When policy - based routing (PBR) is being configured, which three criteria can the set command specify?()Aall interfaces in the path toward the destinationBall networks in the path toward the destinationCadjacent next hop router in the path toward the destinationDall routers in the path toward the destinationEall interfaces through which the packets can be routedFtype of service and precedence in the IP packets
多选题Which three statements about the EIGRP routing protocol are true?()AEIGRP supports five generic packet types, including hello, database description (DBD), link state request (LSR), link - state update (LSU), and LSAck.BEIGRP sends periodic hello packets to the multicast IP address 224.0.0.10.CEIGRP will not form a neighbor relationship with another peer when their K values are mismatched.DEIGRP sends periodic hello packets to the multicast IP address 224.0.0.9.EE IGRP will form a neighbor relationship with another peer even when their K values are mismatched.FEIGRP supports five generic packet types, including hello, update, query, reply, and ACK packets.
单选题When are packets processed in an inbound access list?()ABefore they are routed to an outbound interface.BAfter they are routed for outbound traffic.CAfter they are routed to an outbound interface while queuing.DBefore and after they are routed to an outbound interface.EDepends on the configuration of the interfaceFNone of the above
单选题Which statement best describes the application of link fragmentation and interleaving (LFI)?()AIt compresses the Layer 2 payload and marks the packet as a high priority to be transmitted firstBIt fragments larger packets and allows VoIP packets to be transmitted in between them.CIt stops the transmission of large packets when priority packets arrive.DIt sends high priority packets in between normal traffic packets.
单选题Which of the following is true of an ACL when a packet matching an ACE is found?()AThe matching ACE is skipped to allow all other ACEs to be examined.BThe matching ACE is processed and then the last ACE is examined.CThe matching ACE is processed and then the next ACE is examined.DThe matching ACE is processed and the next packet is examined
多选题Which two statements are true about the primary address on an interface? ()AIt is the address used by default as the local address for broadcast and multicast packets sourced locally and sent out of the interfaceBYou use the primary address when you have multiple IP addresses belonging to the same subnet on the same intefaceCIt can be useful for selecting the local address used for packets sent out of unnumbered interfaces when multiple non-127 addresses are configured on the loopback interfaceDBy default, the primary address on an interface is selected as the nmerically highest local address configured on the interface
单选题Which mechanism does OSPFv3 use when the router LSA is too big to be sent out?()AIt relies on IPv6 to do the fragmenting.BIt splits the LS Update packet into smaller packets.CIt splits the LSA into smaller router LSA packets.DIt produces an error.
单选题When building an IP multicast domain using PIM which mode assumes that other routers do not want to forward multicast packets for the group?()APIM - DMBPIM - SMCPIM - RPDCGMPEIGMP snooping
单选题What does the mac packet-classify command do when applied to an interface configuration?()A It enables MAC ACLs to be applied to only IP packets that enter the interface.B It enables MAC ACLs to be applied to only non-IP packets that enter the interface.C It enables MAC ACLs to be applied to all packets that enter the interface.D It enables MAC ACLs to be used for QoS settings.
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