单选题Assume that network-based application recognition （NBAR） has been configured to gather traffic for all known protocols on an interface. Which command will display the statistical results of all recognized protocols？（）A showip nbarB showip nbar pdimC sh

第1题：

Which three configuration tasks are required to successfully deploy NBAR to recognize TCP and UDP stateful protocols？（）

• A、Over leased lines，use the multilink ppp command to reduce latency and jitter，and to create Distributed Link Fragmentation and interleaving.
• B、Use the service-policy command to attach a traffic flow to an interface on the router.
• C、Use the ip rsvp bandwidth command to set a strict upper limit on the bandwidth NBAR uses，and toguarantee admission of any flows.
• D、Use the policy-map command to define one or more QoS policies （such as shaping，policing，and so on） to apply to traffic defined by a class map.
• E、Use the random-detect dscp command to modify the default minimum and maximum thresholds for the DSCP value.
• F、Use the class-map command to define one or more traffic classes by specifying the criteria by which traffic is classified.

第2题：

NBAR supports all of these with the exception of which one？（）

• A、HTTP
• B、IP multicast
• C、TCP flows with dynamically assigned port numbers
• D、non-UDP protocols

第3题：

What are the steps for configuring stateful NBAR for dynamic protocols？ （）

• A、use the command ip nbar protocol-discovery to allow identification of stateful protocols. Use the command ip nbar port-map to attach the protocols to an interface
• B、use the command match protocol rtp to allow identification of real-time audio and video traffic. Use the command ip nbar port-map to extend the NBAR functionality for well-known protocols to new port numbers
• C、use the command match protocol to allow identification of stateful protocols. Use the command ip nbar port-map to attach the protocols to an interface
• D、configure a traffic class. Configure a traffic policy. Attach the traffic policy to an interface. 
• E、configure video streaming. Configure audio streaming. Attach the codec to an interface

第4题：

You are using NBAR to get a statistical baseline for the applications running on your network butdiscover that some applications are not being recognized. Which of the following are possiblesolutions？（Choose all that apply.）（）

• A、Use the ip nbar pdlm command to allow NBAR to reference a new PDLM in flash memory
• B、If NBAR doesn’t recognize certain applications you must contact Cisco and ask them to emailyou a new PDLM for that application
• C、Use the ip nbar port-map command to allow NBAR to recognize certain applications with anev/port number
• D、The applications not being recognized can be rerouted to an NBAR collector， which has a morecomplete list of applications
• E、Use the copy nbar flash： command to download a new PDLM file to flash
• F、Use the ip nbar pdlm command to download a new NBAR reference file from the Cisco website

第5题：

The Cisco SDM can configure most， but not all， routing protocols. Which two of these routing protocols can be configured using SDM？ （Choose two.）（）

• A、 BGP
• B、 IGRP
• C、 ISIS
• D、 OSPF
• E、 EIGRP

第6题：

You have been asked to develop an application that uses only connection-oriented protocols. Which two protocols can you use?（）

• A、PPP
• B、UDP
• C、TCP
• D、ICMP

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第13题：

What are three features of the Cisco IOS Firewall feature set？（）

• A、network-based application recognition （NBAR）
• B、authentication proxy
• C、stateful packet filtering
• D、AAA services
• E、proxy server
• F、IPS

第14题：

The route processor is critical to the operation of a network， and any service disruption to the route processor can result in network outages. Which QoS tool canprotectroute processor traffic？（）

• A、control plane policing
• B、data plane policing
• C、network-based application recognition （NBAR）
• D、service plane policing
• E、management plane policing

第15题：

Which two types of QoS functionality will be provided by Network-Based Application Recognition？（）

• A、NBAR provides the ability to configure MCQ； it is a mandatory MCQ component.
• B、NBAR provides deep packet inspection and is used for advanced packet classification.
• C、NBAR provides per-protocol packet and byte accounting functionality； it is used to track bandwidth utilization for all protocols described in the loaded PDLMs.
• D、NBAR provides scheduling in an MQC policy map using an advanced algorithm.

第16题：

What are the steps for configuring stateful NBAR for dynamic protocols？（）

• A、Use the command ip nbar protocol-discovery to allow identification of stateful protocols. Use the command ip nbar port-map to attach the protocols to an interface.
• B、Use the command match protocol rtp to allow identification of real-time audio and video traffic. Use thecommand ip nbar port-map to extend the NBAR functionality for well-known protocols to new port numbers.
• C、Use the command match protocol to allow identification of stateful protocols. Use the command ip nbar port-map to attach the protocols to an interface.
• D、Configure a traffic class. Configure a traffic policy. Attach the traffic policy to an interface.
• E、Configure video streaming. Configure audio streaming. Attach the codec to an interface.

第17题：

A new server was installed for the purpose of monitoring network traffic. The network has been configured in such a way that all traffic will be mirrored out the port this server is connected to. When reviewing the network traffic logs on the server only traffic destined to the server is listed in the logs. Which of the following is preventing the server from seeing all network traffic?（）

• A、NIC filtering is enabled.
• B、Port security is configured.
• C、NIC is not in promiscuous mode.
• D、NIC is in promiscuous mode.

第18题：

In JUNOS software， which command is used to configure TED support for OSPF？（）

• A、set protocols rsvp cspf-enable
• B、set protocols mpls cspf-enable
• C、set protocols rsvp traffic-engineering
• D、set protocols ospf traffic-engineering

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