350-001 Cisco Certified Internetworking Expert Certification Test

Cisco ™

350-001 Cisco Certified Internetworking Expert

Note 1: 350-001 Exhibit and all related diagrams are not shown in demo questions.
Note 2: 350-001 Answers are not shown in demo questions.
Exhibits and Answers are only provided in the Full Version.

Demo Question 18.

You need to configure NBAR on a EliteCertify router for QoS purposes. What Quality of Service functionality does NBAR (Network Based Application Recognition) provide? (Choose two)

A. NBAR is an advanced algorithm acting as scheduler in a MQC policy-map
B. NBAR provides deep packet inspection and is used for advanced packet classification
C. NBAR provides a per-protocol packet and bytes accounting functionality. This is used to track bandwidth utilization for all protocols described in the loaded PDLMs
D. NBAR is a mandatory component of MQC (Modular QoS CLI). Without NBAR it is impossible to do any MQC configuration
E. The use of NBAR is configured with an application-policy

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Answer: B, C

Explanation: NBAR addresses IP QoS classification requirements by classifying application-level protocols so that QoS policies can be applied to the classified traffic. NBAR addresses the ongoing need to extend the classification engine for the many existing and emerging application protocols by providing an extensible Packet Description Language (PDL). NBAR can determine which protocols and applications are currently running on a network so that an appropriate QoS policy can be created based upon the current traffic mix and application requirements. Reference: http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a00800 c