When should traffic shaping be implemented on Frame Relay PVCs？（）

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  A . Combine all the VLAN spanning trees into a single spanning tree B . Set forward delay and max-age timers to the maximum possible values C . None of the choices D . Change the router VTP server mode E . Disable the root bridge

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• 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 . They use source IP information along with protocol-type information for finer granularity of control.

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• How is UPSR and BLSR traffic rerouted during a protection switch when a complete fiber cable cut occurs?（）

  A . Traffic is switched from the first node receiving the AIS indication. B . Traffic is switched from the far side of the failure, allowing handshaking to occur. C . UPSR traffic is switched from the terminating node, BLSR traffic is rerouted from the originating node in the ring. D . UPSR traffic is switched from the terminating node, circuit by circuit. BLSR traffic is rerouted from the last reachable node in the ring.

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• For defining the QoS policies for each traffic class， which parameters should be identified？ （）

  A . minimum bandwidth guarantee B . average bandwidth guarantee C . optimum bandwidth guarantee D . maximum bandwidth rate E . IP precedence F priority

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• You need to identify the types of inbound traffic that should pass through the perimeter firewall while maintaining the security of the network. Which inbound traffic should be allowed?（）

  A . VPN Traffic B . DNS Traffic C . LDAP Traffic D . HTTP Traffic E . HTTPS Traffic F . Traffic from the network address of 192.168.10/24

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• You need to identify the types of inbound traffic that should pass through the perimeter firewall while maintaining the security of the network.  Which inbound traffic should be allowed？ （）

  A .  VPN Traffic B .  DNS Traffic C .  LDAP Traffic D .  HTTP Traffic E .  HTTPS Traffic F .  Traffic from the network address of 192.168.10/24

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• Which two options can be used as traffic descriptors when classifying and marking traffic？ （）

  A . incoming interface B . Layer 2 differentiated services code point （DSCP） C . Layer 3 IP precedence D . outgoing interface

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• In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so（）.

  A . only in case of an emergency or the engage in fishing within the zone B . as nearly as practical at right angles to the general direction of traffic flow C . at as small an angle as possible D . only to anchor within the zone

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• The Company network needs to pass traffic between VLANs.  Which device should be used to  accomplish this？ （）

  A .  Hub B .  Switch C .  Router D .  Bridge E .  None of the other alternatives apply

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• Which two actions can be configured to allow traffic to traverse an interface when zone-based security isbeing employed？（）

  A . Pass B . Flow C . Allow D . Inspect

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• Which NetFlow version should be used to collect accounting data for IPv6 traffic？（）

  A . version 1 B . version 5 C . version 7 D . version 8 E . version 9

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• Which command should be used to capture network traffic between the localhost and a host named ‘webserver’？（）

  A . tcpdump webserver B . tcpdump host webserver C . tcpdump -hostname webserver D . tcpdump -print -h webserver

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• When provisioning for Interactive-Video（e，g，video conferencing traffic）which three statementsdepicts the correct requirements？（）

  A . Loss should be no more than 1 percent. B . One-way latency should be no more than 150 ms C . Jitter should be no more than 30 ms D . Loss should be no more than 3 percent E . One-way latency should be no more than 150/2=75 ms F . Jitter should be no more than 300 m

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• When using VSD， traffic flow goes from the virtual machine to which of these？（）

  A .  Upstream switch B .  Virtual Supervisor Module C .  VMware distributed switch D .  VMware vSwitch E .  Service virtual machine

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• When you go out into the world, watch for traffic, hold hands and（）together.

  A . stick B . stuck C . strike D . struck

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• Which command should be used to capture network traffic between the localhost and a host named ’webserver’？（）  

  A . tcpdump webserver B . tcpdump host webserver C . tcpdump -hostname webserver D . tcpdump -print -h webserver

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• Refer to the exhibit. Which statement is true when voice traffic is forwarded on the same VLAN  used by the data traffic？ （） https://assets.asklib.com/images/image2/2018073014372698425.jpg

  A . The voice traffic cannot be forwarded to the distribution layer. B . The voice traffic cannot use 802.1p priority tagging. C . Port security cannot be enabled on the switch that is attached to the IP phone. D . Quality of service cannot be applied for the voice traffic.

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• A vessel when joining or leaving from the side of a traffic separation scheme shall do so at as（）to the general direction of traffic flow as practicable.

  A . small an angle B . large an angle C . either small or large an angle D . neither small nor large an angle

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• In a traffic separation scheme，when joining a traffic lane from the side，a vessel shall do so（）.

  A . only in case of an emergency or to engage in fishing within the zone B . as nearly as practical at right angles to the general direction of traffic flow C . at as small an angle as possible D . only to anchor within the zone

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• 纠错 When the tank car carried the toxic gas derailed, the firemen tried to isolate the village from all traffic.

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• In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so_

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• How can you go ______ the street when the traffic is heavy?

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• 听力原文：W: What a lot of traffic! You should have listened to me not to drive down the main street when it's so crowded.

  M: Just be patient, honey. It's usual that many roads are busy on weekends. Q: Where did the conversation take place？ (13) A．At a railway station. B．At an airport. C．On a road. D．In an office.

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• The government should _____________ traffic.

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