Cisco 642-642 Training Course

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Cisco 642-642

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CCNP (Cisco Certified Network Professional) 642-801
$10-$29
642-811
$10-$29
642-821
$10-$35
642-831
$10-$35
642-891
$16-$50
CCIE (Cisco Certified Internetwork Expert) 350-001
$20-$99
350-022
$60
350-023
$80
350-027
$60
350-030
$60
CCSP (Cisco Certified
Security Professional)
642-501
$10-$39
642-502
$39
642-511
$10-$30
642-513
$39
642-521
$10-$29
           
           
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ExactQuestions -
Cisco 642-642


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  • CCNP (Cisco Certified Network Professional) 642-801
    $10-$29
    642-811
    $10-$29
    642-821
    $10-$35
    642-831
    $10-$35
    642-891
    $16-$50
    CCIE (Cisco Certified Internetwork Expert) 350-001
    $20-$99
    350-022
    $60
    350-023
    $80
    350-027
    $60
    350-030
    $60
    CCSP (Cisco Certified
    Security Professional)
    642-501
    $10-$39
    642-502
    $39
    642-511
    $10-$30
    642-513
    $39
    642-521
    $10-$29
               

    Exam profile: Cisco 642-642 QOS (Quality of Service)

    The vendor of the Cisco 642-642 QOS exam is Cisco.

    Cisco 642-642 Certification credit: When you pass the Cisco 642-642 QOS exam you earn credit towards Cisco CCIP, Cisco CCVP, Cisco IP Telephony Design Specialist, Cisco IP Telephony Express Specialist, Cisco IP Telephony Operations Specialist, and Cisco IP Telephony Support Specialist.

    Cisco 642-642 Description of exam: The Cisco 642-642 QOS exam is a qualifying exam for the Cisco CCIP, Cisco CCVP, Cisco IP Telephony Design Specialist, Cisco IP Telephony Express Specialist, Cisco IP Telephony Operations Specialist, and Cisco IP Telephony Support Specialist.

    Cisco 642-642 Available time: You have more or less 90 minutes to complete the exam and is available in English only.

    Cisco 642-642 Questions to answer: The Cisco 642-642 QOS exam consists of approximately 45-55 questions and the exam has a difficulty of 3/5 using a scale of 1-5.

    Cisco 642-642 Cost of exam: The exam prices can fluctuate so contact your nearest exam testing centre and acquire the prices from them.

    TestKing - Cisco 642-642 Offers Industry's Best Cisco 642-642 Certification and Study Guides

    Cisco 642-642 Skills considered

    Exam Subject 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 Subject 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

    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

    Exam Subject 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 Subject 4: 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

    Exam Subject 5: 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 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

    Exam Subject 6: 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

    Exam Subject 7: 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

    Exam Subject 8: 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

    Exam Subject 9: 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

    Cisco 642-642 Preparation and Study Tips: You can obtain a high quality Cisco 642-642 QOS study guide from TestKing. Testking also provides you with 642-642 practice exams, 642-642 training, 642-642 practice tests and 642-642 exam questions. There are other resources available like free braindumps and study notes which can be located at mcsebraindumps.com.

    TestKing - Cisco 642-642 Offers Industry's Best Cisco 642-642 Certification and Study Guides

     


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