单选题Which statement describes transit traffic?（）ATraffic addressed to the chassis that requires some form of special handling by the RE before it can be forwarded out an egress port.BTraffic that enters an ingress port, is compared against the forwarding table, and is forwarded out an egress port.CAny traffic that requires the generation of an ICMP message.DTraffic that requires some form of special attention and does not pass through the device.
单选题
Which statement describes transit traffic?（）
A
Traffic addressed to the chassis that requires some form of special handling by the RE before it can be forwarded out an egress port.
B
Traffic that enters an ingress port, is compared against the forwarding table, and is forwarded out an egress port.
C
Any traffic that requires the generation of an ICMP message.
D
Traffic that requires some form of special attention and does not pass through the device.
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Which statement is correct regarding exception traffic processing?() A. Exception traffic is only handled by the PFEB. Exception traffic is rate-limited across the internal link to protect the REC. Exception traffic is not prioritized during times of congestionD. Exception traffic is forwarded based on forwarding table entries
Which statement describes transit traffic?() A. Traffic addressed to the chassis that requires some form of special handling by the RE before it can be forwarded out an egress port.B. Traffic that enters an ingress port, is compared against the forwarding table, and is forwarded out an egress port.C. Any traffic that requires the generation of an ICMP message.D. Traffic that requires some form of special attention and does not pass through the device.
In the Junos OS, what handles transit traffic?() A. Transit traffic is handled by the RE onlyB. Transit traffic is handled by the PFE onlyC. Transit traffic is handled by both the RE and the PFED. Transit traffic is not handled by the RE or the PFE
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Which statement describes the PFE?() A. The PFE controls the RE by providing Layer 2 and Layer 3 forwarding tablesB. The PFE implements advanced services such as policing, stateless firewall filtering, and class of serviceC. The PFE sends traffic to the RE for systematic packet forwardingD. The PFE receives hardware and environmental status messages from the RE
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How does the PFE handle unicast transit traffic destined for an existing forwarding table entry?（）A、It sends the traffic through one egress port toward its destinationB、It sends the traffic through multiple egress ports to all available receiversC、It sends the traffic through an internal link to the RED、It sends the traffic to the local system for further processing
Which statement is correct regarding exception traffic processing?（）A、Exception traffic is only handled by the PFEB、Exception traffic is rate-limited across the internal link to protect the REC、Exception traffic is not prioritized during times of congestionD、Exception traffic is forwarded based on forwarding table entries
Which statement describes transit traffic?（）A、Traffic addressed to the chassis that requires some form of special handling by the RE before it can be forwarded out an egress port.B、Traffic that enters an ingress port, is compared against the forwarding table, and is forwarded out an egress port.C、Any traffic that requires the generation of an ICMP message.D、Traffic that requires some form of special attention and does not pass through the device.
Which statement describes the behavior of a security policy？（）A、The implicit default security policy permits all traffic.B、Traffic destined to the device itself always requires a security policy.C、Traffic destined to the device’s incoming interface does not require a security policy.D、The factory-default configuration permits all traffic from all interfaces.
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单选题On the Cisco Nexus 7000 Series Switch， Control Plane Policing is enforced on which component？（）A The supervisor module enforces CoPP before out-of-policy traffic reaches the CPUB The fabric modules enforce CoPP in the fabric before out-of-policy traffic reaches the CPU C The linecards enforce CoPP locally before out-of-policy traffic reaches the CPUD The egress virtual output queue enforces CoPP locally before out-of-policy traffic reaches the CPU
单选题How does the PFE handle unicast transit traffic destined for an existing forwarding table entry?（）AIt sends the traffic through one egress port toward its destinationBIt sends the traffic through multiple egress ports to all available receiversCIt sends the traffic through an internal link to the REDIt sends the traffic to the local system for further processing
单选题Which statement is correct regarding exception traffic processing?（）AException traffic is only handled by the PFEBException traffic is rate-limited across the internal link to protect the RECException traffic is not prioritized during times of congestionDException traffic is forwarded based on forwarding table entries
多选题Which four statements about NetFlow are true？（）ANetFlow records bidirectional IP traffic flow.BNetFlow export can be implemented over IPv4.CNetFlow export can be implemented over IPv6.DNetFlow records multicast IP traffic flow.ENetFlow records ingress traffic.FNetFlow records egress traffic.
单选题Which statement describes the PFE?（）AThe PFE controls the RE by providing Layer 2 and Layer 3 forwarding tablesBThe PFE implements advanced services such as policing, stateless firewall filtering, and class of serviceCThe PFE sends traffic to the RE for systematic packet forwardingDThe PFE receives hardware and environmental status messages from the RE
单选题Which statement describes exception traffic?（）AException traffic must be sent to the PFE for processing.BException traffic enters one ingress port and is sent out multiple egress ports.CException traffic is rate-limited on the internal link to prevent DoS attacks.DException traffic is processed after forwarding traffic when congestion exists.
多选题Which two characteristics are common between traffic policing and traffic shaping？（）AThe rate of traffic is measured and compared to a configured policy.BClassification is used to differentiate traffic.CTraffic is marked and sent out according to priority.DBoth can be applied to inbound and outbound traffic.EBoth buffer traffic to ensure a predetermined traffic rate.FBoth drop traffic that is above a predetermined traffic rate.
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