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642-642 QoS

Quality of Service Exam

Exam Number:642-642
Associated Certifications:

Cisco IP Telephony Express Specialis, and Cisco IP Telephony Design Specialist

Duration:90 minutes (45-55 questions)
Available Languages:English, Japanese
Click Here to Register:Pearson VUE
Exam Policies:Read current policies and requirements
Exam Tutorial:Review type of exam questions
Register for Course:QoS Courses and other offerings


Exam Description

The QoS exam is one of the qualifying exams for the Cisco IP Telephony Design Specialist, Cisco IP Telephony Express Specialist, Cisco IP Telephony Operations Specialist, and Cisco IP Telephony Support Specialist certifications. The QoS 642-642 exam will test materials covered under the  Implementing Cisco Quality of Service QoS v2.3 course. The exam will certify  that the successful candidate has knowledge and skills necessary to configure  and troubleshoot Cisco IOS routers running Quality of Service protocols in  Service Provider and Enterprise environments. The exam covers topics on IP QoS, classification and marking Mechanisms, queuing mechanisms, traffic shaping and policing mechanisms, congestion avoidance mechanisms, link efficiency mechanisms, modular QoS command line interface, and QoS Best Practices.


Exam Topics

The following information provides general guidelines for the content likely to be included on the exam. However, other related topics may also appear on any specific delivery of the exam.


642-642 QoS Exam Topics




Recommended Training

Implementing Cisco Quality of Service (QoS) is the recommended training for this exam.


Courses listed are offered by Cisco Learning Partners, the only authorized source for Cisco IT training delivered exclusively by Certified Cisco Instructors. Check the List of Learning Partners for a Cisco Learning Partner near you.


Additional Resources

A variety of Cisco Press titles may be available for this exam. These titles can be purchased through the Cisco Marketplace Bookstore, directly from Cisco Press.


CCIP Study Group

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