Implementing Cisco Quality of Service (QoS) Exam 642-642 Courses and other IT courses from TEKsystems Education Services

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Course Code:	TO 131
Course Abstract:	*This course is in development.* The QOS exam is one of the qualifying exams for the 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. The QOS 642-642 exam will test materials covered under the Implementing Cisco Quality of Service QOS v2.1 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. The CCIP (Cisco Certified Internetwork Professional) provides individuals working in service provider organizations with competencies in infrastructure IP networking solutions. CCIP professionals have detailed understanding of networking technologies in the service provider arena including IP routing, IP QoS, BGP, and MPLS. The 642-642 exam is one of the four core exams required for the Cisco CCIP. Documentation Course Materials consist of the following materials: > A Welcome Kit > CCIP QoS Study Guide Exam Preparation Completion, review & discussion of examination question examples. Examination Cisco will ask advanced questions on the following topics: > IP QoS Fundamentals > IP QoS Components > Modular QoS CLI and Auto-QoS > Classification and Marking > Congestion Management Methods > Congestion Avoidance Methods > Traffic Policing and Shaping > Link Efficiency Mechanisms > QoS Best Practices As with most Cisco exams, the QoS is considered to be very challenging. Participants should expect to spend many hours studying for this exam both in lab and in text. The exam normally lasts 75 minutes. However, you will have 90 minutes to complete the exam. Criteria for Certification Cisco does not publish the pass score for this exam; however rumors say that the normal passing score is 849 out of 1000. The exam contains somewhere between 60 and 70 questions that include multiple choice, drag and drop, and simulation style questions in varying numbers.
Audience:	This course is primarily targeted at IT professionals who have a large amount of experience with network design and implementation.
Duration:	5 days
Learning Outcomes:	Upon completing this course, the participant will be able to: > 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 > 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 > Given a list of QoS actions, correctly match the QoS actions to mechanisms for implementing QoS and identify where in a network the different QoS mechanisms are commonly used > Given a network requiring QoS, explain how to implement a QoS policy using MQC > Explain how AutoQoS is used to implement QoS policy > Explain how link layer and network layer markings are used to define service classes and the different applications represented by each of these service classes > Given a network and a description of QoS issues, use MQC CLI commands to classify packets > Given a network and a description of QoS issues, use class-based marking to assign packets to a specific service class > Describe the function of Network Based Application Recognition > Describe the purpose of pre-classification to support QoS in various VPN (IPSEC, GRE, L2TP) configurations > Describe QoS trust boundaries and their significance in LAN based classification and marking > Identify the different classification and marking options available on Cisco L2 and L3 switching platforms > List and explain the different queuing algorithms > Explain the components of hardware and software queuing systems on Cisco routers and how they are effected by tuning and congestion > Describe the benefits and drawbacks of using WFQ to implement QoS > Explain the purpose and features of Class-Based WFQ (CBWFQ) > Explain the purpose and features of Low Latency Queuing (LLQ) > Identify the Cisco IOS commands required to configure and monitor LLQ on a Cisco router > Describe and explain the different queuing capabilities available on the Cisco Catalyst 2950 Switch > Describe the drawbacks tail drop as a congestion control mechanism > Describe the elements of a RED traffic profile > Describe Weighted Random Early Detection and how it can be used to prevent congestion > Identify the Cisco IOS commands required to configure and monitor DSCP-based CB-WRED > Explain how ECN interacts with WRED in Cisco IOS > Describe the purpose of traffic conditioning using traffic policing and traffic shaping and differentiate between the features of each > Explain how network devices measure traffic rates using single rate or dual rate, single or dual token bucket mathematical models > Identify the Cisco IOS commands required to configure and monitor single rate and dual rate CB-Policing > Identify the Cisco IOS commands required to configure and monitor percentage based CB-Policing > Explain how the two rate limits, average rate and peak rate, can be used to rate limit traffic > Identify the Cisco IOS commands required to configure and monitor CB-Shaping > Identify the Cisco IOS commands required to configure and monitor Frame Relay adaptive CB-Shaping on Frame Relay interfaces > Explain the various link efficiency mechanisms and their function > Identify the Cisco IOS commands required to configure and monitor CB header compression > Given a list of link speeds and a specific delay requirement, determine the proper fragment size to use at each link speed and identify the typical delay requirement for VoIP packets > Identify the Cisco IOS commands required to configure and monitor Multilink PPP with Interleaving > Identify the Cisco IOS commands required to configure and monitor FRF.12 > Explain the QoS requirements of the different application types > List typical enterprise traffic classes then identify the delay, jitter, packet loss and bandwidth requirements of each traffic class > Explain the best practice QoS implementations and configurations within the campus LAN > Explain the best practice QoS implementations and configurations on the WAN customer edge (CE) and provider edge (PE) routers > A solid credential that can be utilized in any industry > Validation of achievement in an industry-valued skill > Viable career path, leading to higher level positions
Course Topics:	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 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 Given a list of QoS actions, correctly match the QoS actions to mechanisms for implementing QoS and identify where in a network the different QoS mechanisms are commonly used 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 Classification and Marking Explain how link layer and network layer markings are used to define service classes and the different applications represented by each of these service classes Given a network and a description of QoS issues, use MQC CLI commands to classify packets Given a network and a description of QoS issues, use class-based marking to assign packets to a specific service class Describe the function of Network Based Application Recognition Describe the purpose of pre-classification to support QoS in various VPN (IPSEC, GRE, L2TP) configurations Describe QoS trust boundaries and their significance in LAN based classification and marking Identify the different classification and marking options available on Cisco L2 and L3 switching platforms Congestion Management Methods List and explain the different queuing algorithms Explain the components of hardware and software queuing systems on Cisco routers and how they are affected by tuning and congestion Describe the benefits and drawbacks of using WFQ to implement QoS Explain the purpose and features of Class-Based WFQ (CBWFQ) Explain the purpose and features of Low Latency Queuing (LLQ) Identify the Cisco IOS commands required to configure and monitor LLQ on a Cisco router Describe and explain the different queuing capabilities available on the Cisco Catalyst 2950 Switch Congestion Avoidance Methods Describe the drawbacks tail drop as a congestion control mechanism Describe the elements of a RED traffic profile Describe Weighted Random Early Detection and how it can be used to prevent congestion Identify the Cisco IOS commands required to configure and monitor DSCP-based CB-WRED Explain how ECN interacts with WRED in Cisco IOS Traffic Policing and Shaping Describe the purpose of traffic conditioning using traffic policing and traffic shaping and differentiate between the features of each Explain how network devices measure traffic rates using single rate or dual rate, single or dual token bucket mathematical models Identify the Cisco IOS commands required to configure and monitor single rate and dual rate CB-Policing Identify the Cisco IOS commands required to configure and monitor percentage based CB-Policing Explain how the two rate limits, average rate and peak rate, can be used to rate limit traffic Identify the Cisco IOS commands required to configure and monitor CB-Shaping Identify the Cisco IOS commands required to configure and monitor Frame Relay adaptive CB-Shaping on Frame Relay interfaces Link Efficiency Mechanisms Explain the various link efficiency mechanisms and their function Identify the Cisco IOS commands required to configure and monitor CB header compression Given a list of link speeds and a specific delay requirement, determine the proper fragment size to use at each link speed and identify the typical delay requirement for VoIP packets Identify the Cisco IOS commands required to configure and monitor Multilink PPP with Interleaving Identify the Cisco IOS commands required to configure and monitor FRF.12 QoS Best Practices Explain the QoS requirements of the different application types List typical enterprise traffic classes then identify the delay, jitter, packet loss and bandwidth requirements of each traffic class Explain the best practice QoS implementations and configurations within the campus LAN Explain the best practice QoS implementations and configurations on the WAN customer edge (CE) and provider edge (PE) routers
Prerequisites:	Due to the pace and duration of this course, ideal candidates for this course operate in medium to very large computing environment: > They have a minimum of one-year experience working in a LAN/WAN environment > They have a minimum of six months experience in a multi-LAN environment > Hold the Cisco Certified Network Associate (CCNA) certification

Implementing Cisco Quality of Service (QoS) Exam 642-642 Course

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