Title of Exam: 642-642 Quality of Service Exam

Who is the vendor for 642-642?

CISCO

When completing 642-642 you would have earned credit towards : Cisco Certified Internetwork Professional, Cisco Certified Voice Professional, Cisco IP Telephony Design Specialist, Cisco IP Telephony Express Specialist, Cisco IP Telephony Operations Specialist, and Cisco IP Telephony Support Specialist certifications.

642-642 Exam Description

The Quality of Service exam is one of the exams required to achieve a CCIP (Cisco Certified Internetwork Professional) certification.

What are the fields covered by 642-642?

The 642-642 Quality of Service examination covers nine broad areas which are discussed in detail below:

Exam area 1 . IP QoS Fundamentals

Given a description of a converged network, identify problems that could lead to poor quality of service and explain how the problems might be resolved

Define the term Quality of Service (QoS) and identify and explain the key steps to implementing QoS on a converged network

Exam area 2. IP QoS Components

List and explain the models for providing Quality of Service on a network

Explain the purpose and function of the DiffServ model

Describe the basic format of and explain the purpose of the DSCP field in the IP header

Define and explain the different per hop behaviors used in DSCP

Explain the interoperability between DSCP-based and IP-precedence-based devices in a network

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Exam area 3 . Modular QoS CLI and Auto-QoS

Given a network requiring QoS, explain how to implement a QoS policy using MQC

Explain how AutoQoS is used to implement QoS policy

Exam area 4 . Classification and Marking

Exam area 5 . Congestion Management Methods

Exam area 6 . Congestion Avoidance Methods

Exam area 7 . Traffic Policing and Shaping

Exam area 8 . Link Efficiency Mechanisms

Exam area 9 . QoS Best Practices

Difficulty rating : this examination rates 3 on a scale of 1 - 5 difficulty rating.

How long do I have to complete 642-642?

90 minutes

How many questions will I be required to answer?

45 - 55 questions

How much will 642-642 cost?

125 USD - Contact the Examination Test Centre directly for information regarding course availability, registration information and cost. Remember that costs may vary from vendor to vendor and from examination to examination.

642-642 Study Tips:

Testking has several products that include excellent materials that will aid in preparation for this exam. Their materials include detailed 642-642 study notes and guides, questions and answers with detailed explanations, even practice tests, which were compiled by experts in their respective field. For this examination you can check 642-642 Test King and the 642-642 practice test.

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