Exam: 642-311
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642-311 SONET
Cisco Optical SONET Exam
Exam Description
The Optical SONET exam is one of the two qualifying theater exams available to candidates pursuing the Cisco Optical Specialist certification. This exam—recommended for candidates in US, Canada, and Korea—tests materials covered in the recommended Cisco Optical Specialist curriculum: Cisco ONS 15454 SONET Turn Up, Text, Provisioning, and Operation Training (OCTPO); Cisco ONS 15216 Provisioning and Operation Training (OPODA); and Optical Fundamentals (OF). The exam will certify that the successful candidate has important knowledge and skills necessary to understand the protocols, principles, and underlying technologies of optical systems, such as fiber optic fundamentals, SONET, SDH, DWDM, and optical cross connects. In addition, a Cisco Optical Specialist will be able to design, configure, build, operate, and troubleshoot Cisco optical networking products, (including ONS 15454, & ONS 15216) in METRO/Regional and METRO/Access network environment.
Exam Topics
Optical Fundamentals
* Describe Light and Fiber Optic Basics (Characteristics of Light, Properties and Components of Optical Fiber, Reflection, Refraction, and Fiber Types)
* Describe Passive Components of an Optical Network ( What is a Passive Component? and Attenuators)
* Describe Active Components of an Optical Network (Optical Transmitters, Receivers, and Regenerator)
* Explain the Factors that Impact Optical System Design (Optical Power, Optical Power Budget, splicing loss, margin tolerances, Optical Attenuation and Loss, Single Channel Power vs. Composite Power, Dispersion, Other NON-linearities, and Chirp, source modulation technique.)
* Explain signal regeneration (What are the three Rs, What are the two Rs, Signal Regeneration in Real Networks)
Dense Wavelength Division Multiplexing (DWDM) Principles
* Explain Dispersion in DWDM Systems (Harmonics, Measuring Dispersion, Effects of Dispersion on Telecom Signals, Polarization Mode Dispersion, Calculating Dispersion Budget)
* Describe Optical filters [Characteristics of Filters, Types of filters, Thin Film Filters, Fiber Bragg Grating (FBG)]
* Explain the Characteristics and Structure of Multiplexers (Characteristics of Multiplexers, Structure of an ADD/Drop, Thin Film Multiplexer, Fiber Bragg Grating Multiplexer, Arrayed Wave Guide.)
* Compare Types of Lasers and Receivers (Direct modulation, external modulation) for DWDM Transmission
* Describe Optical Amplification Options (Design and understand the Functionality of EDFA, Optical Gain, Building Feedback into an Amplifier, Gain Competition, Raman Amplifiers.)
* Explain OSNR (What is OSNR?, OSNR Calculation in one amplifier, OSNR Calculation in Multiple amplifiers, Limitations due to OSNR.)
Service Provisioning, Operation and Troubleshooting (216 DWDM)
* Describe the components of the ONS 15216 system, supported configurations, and network applications
* Describe the functions and characteristics of the DWDM system created by combining ONS 15454 OC-48 ELR cards and ONS 15216 DWDM filters
* Describe the functions, characteristics, and applications of the ONS 15216 OADMs
* Describe the functions, characteristics, and applications of the ONS 15216 EDFAs
* Describe the functions and characteristics of the ONS 15216 DCU
SONET Principles
* Given various SONET hierarchy levels, compute the bit rates, identify the main protection switching concepts for UPSR, BLSR, and Linear Configurations.
* Compare and contrast UPSR and BLSR ring technology (capacity, application, node limiatations, design constraints, traffic flow and APS.)
* Analyze optical characteristics related to SONET Overhead (Identify the SONET overhead bytes at the line, section, and path that directly relate to SONET OAM&P. (SES, APS, etc.)
* Define SPE (Synchronous Payload Envelope) and describe it's size, Frame sizing (STS, OC-N), Interleaving vs. Concatenation vs. Scrambling (GR-253, section 5.1).
* Describe the methods used to encapsulate DS-3's into STS's (and possibly DS-1's into VT1.5's to STS's)
* Troubleshoot Optical Network Problems Related to SONET. Identify the procedure for performing loopback tests to the client and to the network. Given several major failure conditions and their associated alarm indicators, describe how they would affect users, AIS vs LOS alarms, pointer issues, errored seconds, BIP-8 CRC checking, APS Trouble types (see GR-253, section 6.2.1.1.6)
* Implement Synchronization Timing in a SONET Network (Describe the synchronization timing modes, Describe Sync Status Messaging (SSM) and Sync. Distribution.
* Explain the key differences and similarites of SONET and SDH (overhead information, multiplexing, payload mapping, protection schemes, synchronization, and performance monitoring.)
* Describe the internetworking principles between SONET and SDH and the method of transporting SDH over Sonet (SS bits, DCC, line rate)
Service Provisioning, Operation and Troubleshooting (15454 SONET)
* Describe the procedures for configuring a Cisco ONS 15454 in a Data Communications Network.
* Describe the shelf layout, shelf hardware, and backplane interfaces
* Set the timing parameters in the ONS 15454 from the CTC Timing subtab
* Describe the following protection schemes and their application to the ONS 15454. (1+1 (one plus one) protection, 1:1 (one for one) protection, 1:N (one for "N") protection)
* Identify the following, as applied to an ONS 15454. (Typical point-to-point optical fiber routing, 1+1 protection groups, Typical linear add/drop multiplexer (ADM) configuration optical fiber routing.)
* Describe the procedures for creating circuits and their impact on the crossconnect matrices (VT and STS, linear vs. ring)
* Describe the operation and application of unidirectional path-switched ring (UPSR) in the 15454. [Typical optical fiber routing, UPSR STS protection, Typical signal paths, Automatic protection switching, Major steps required to create a UPSR, UPSR dual ring interconnect (integrated and traditional)]
* Identify a virtual tributary (VT) circuit and a VT tunnel, and how each applies to the ONS 15454
* Describe the operation and application of BLSR rings in the ONS 15454 (Typical two-fiber BLSR optical fiber routing, BLSR STS protection, Typical signal paths, Automatic protection switching, Protection channel access, Major steps to create a two-fiber BLSR, Four-fiber BLSR span switching, Four-fiber BLSR ring switching, Two-fiber to four-fiber BLSR upgrade.)
* Describe the Ethernet card types and their application in the ONS 15454
* Identify the major steps needed to add or remove a node to an existing BLSR Ring
* Describe PPMN (Path Protected Mesh Network) in the ONS 15454 and how it compares with UPSR and BLSR.
* Describe the protocol and operation of the ONS 15454 DCC and interoperability requirements in a multi-vendor environment. Make The Best Choice Chose - Examkingdom
Reday to get certified today competitive computer industry Examkingdom's preparation material includes the most excellent features, prepared by the same dedicated experts who have come together to offer an integrated solution. We provide the most excellent and simple method to pass your Cisco Optical Specialist 642-311 exam on the first attempt "GUARANTEED".
Unlimited Access Package
will prepare you for your exam with guaranteed results, 642-311 Study Guide. Your exam will download as a single 642-311 PDF or complete 642-311 testing engine as well as over +4000 other technical exam PDF and exam engine downloads. Forget buying your prep materials separately at three time the price of our unlimited access plan - skip the 642-311 audio exams and select the one package that gives it all to you at your discretion: 642-311 Study Materials featuring the exam engine.
Examkingdom 642-311 Exam Prepration Tools
Examkingdom Cisco Optical Specialist preparation begins and ends with your accomplishing this credential goal. Although you will take each Cisco Optical Specialist online test one at a time - each one builds upon the previous. Remember that each Cisco Optical Specialist exam paper is built from a common certification foundation.
642-311 Exam Testing Engines
Beyond knowing the answer, and actually understanding the 642-311 test questions puts you one step ahead of the test. Completely understanding a concept and reasoning behind how something works, makes your task second nature. Your 642-311 quiz will melt in your hands if you know the logic behind the concepts. Any legitimate Cisco Optical Specialist prep materials should enforce this style of learning - but you will be hard pressed to find more than a Cisco Optical Specialist practice test anywhere other than Certkingdom.
642-311 Exam Questions and Answers with Explanation
This is where your Cisco Optical Specialist 642-311 exam prep really takes off, in the testing your knowledge and ability to quickly come up with answers in the 642-311 online tests. Using Optical Specialist 642-311 practice exams is an excellent way to increase response time and queue certain answers to common issues.
642-311 Exam Study Guides
All Cisco Optical Specialist online tests begin somewhere, and that is what the Cisco Optical Specialist training course will do for you: create a foundation to build on. Study guides are essentially a detailed Cisco Optical Specialist 642-311 tutorial and are great introductions to new Cisco Optical Specialist training courses as you advance. The content is always relevant, and compound again to make you pass your 642-311 exams on the first attempt. You will frequently find these 642-311 PDF files downloadable and can then archive or print them for extra reading or studying on-the-go.
642-311 Exam Video Training
For some, this is the best way to get the latest Cisco Optical Specialist 642-311 training. However you decide to learn 642-311 exam topics is up to you and your learning style. The Examkingdom Cisco Optical Specialist products and tools are designed to work well with every learning style. Give us a try and sample our work. You'll be glad you did.
642-311 Other Features
* Realistic practice questions just like the ones found on certification exams.
* Each guide is composed from industry leading professionals real Cisco Optical Specialistnotes, certifying 100% brain dump free.
* Study guides and exam papers are guaranteed to help you pass on your first attempt or your money back.
* Designed to help you complete your certificate using only
* Delivered in PDF format for easy reading and printing Examkingdom unique CBT 642-311 will have you dancing the Cisco Optical Specialist jig before you know it
* Optical Specialist 642-311 prep files are frequently updated to maintain accuracy. Your courses will always be up to date.
Get Optical Specialist ebooks from Examkingdom which contain real 642-311 exam questions and answers. You WILL pass your Optical Specialist exam on the first attempt using only Examkingdom's Optical Specialist excellent preparation tools and tutorials.
Cisco Optical SONET Exam
Exam Description
The Optical SONET exam is one of the two qualifying theater exams available to candidates pursuing the Cisco Optical Specialist certification. This exam—recommended for candidates in US, Canada, and Korea—tests materials covered in the recommended Cisco Optical Specialist curriculum: Cisco ONS 15454 SONET Turn Up, Text, Provisioning, and Operation Training (OCTPO); Cisco ONS 15216 Provisioning and Operation Training (OPODA); and Optical Fundamentals (OF). The exam will certify that the successful candidate has important knowledge and skills necessary to understand the protocols, principles, and underlying technologies of optical systems, such as fiber optic fundamentals, SONET, SDH, DWDM, and optical cross connects. In addition, a Cisco Optical Specialist will be able to design, configure, build, operate, and troubleshoot Cisco optical networking products, (including ONS 15454, & ONS 15216) in METRO/Regional and METRO/Access network environment.
Exam Topics
Optical Fundamentals
* Describe Light and Fiber Optic Basics (Characteristics of Light, Properties and Components of Optical Fiber, Reflection, Refraction, and Fiber Types)
* Describe Passive Components of an Optical Network ( What is a Passive Component? and Attenuators)
* Describe Active Components of an Optical Network (Optical Transmitters, Receivers, and Regenerator)
* Explain the Factors that Impact Optical System Design (Optical Power, Optical Power Budget, splicing loss, margin tolerances, Optical Attenuation and Loss, Single Channel Power vs. Composite Power, Dispersion, Other NON-linearities, and Chirp, source modulation technique.)
* Explain signal regeneration (What are the three Rs, What are the two Rs, Signal Regeneration in Real Networks)
Dense Wavelength Division Multiplexing (DWDM) Principles
* Explain Dispersion in DWDM Systems (Harmonics, Measuring Dispersion, Effects of Dispersion on Telecom Signals, Polarization Mode Dispersion, Calculating Dispersion Budget)
* Describe Optical filters [Characteristics of Filters, Types of filters, Thin Film Filters, Fiber Bragg Grating (FBG)]
* Explain the Characteristics and Structure of Multiplexers (Characteristics of Multiplexers, Structure of an ADD/Drop, Thin Film Multiplexer, Fiber Bragg Grating Multiplexer, Arrayed Wave Guide.)
* Compare Types of Lasers and Receivers (Direct modulation, external modulation) for DWDM Transmission
* Describe Optical Amplification Options (Design and understand the Functionality of EDFA, Optical Gain, Building Feedback into an Amplifier, Gain Competition, Raman Amplifiers.)
* Explain OSNR (What is OSNR?, OSNR Calculation in one amplifier, OSNR Calculation in Multiple amplifiers, Limitations due to OSNR.)
Service Provisioning, Operation and Troubleshooting (216 DWDM)
* Describe the components of the ONS 15216 system, supported configurations, and network applications
* Describe the functions and characteristics of the DWDM system created by combining ONS 15454 OC-48 ELR cards and ONS 15216 DWDM filters
* Describe the functions, characteristics, and applications of the ONS 15216 OADMs
* Describe the functions, characteristics, and applications of the ONS 15216 EDFAs
* Describe the functions and characteristics of the ONS 15216 DCU
SONET Principles
* Given various SONET hierarchy levels, compute the bit rates, identify the main protection switching concepts for UPSR, BLSR, and Linear Configurations.
* Compare and contrast UPSR and BLSR ring technology (capacity, application, node limiatations, design constraints, traffic flow and APS.)
* Analyze optical characteristics related to SONET Overhead (Identify the SONET overhead bytes at the line, section, and path that directly relate to SONET OAM&P. (SES, APS, etc.)
* Define SPE (Synchronous Payload Envelope) and describe it's size, Frame sizing (STS, OC-N), Interleaving vs. Concatenation vs. Scrambling (GR-253, section 5.1).
* Describe the methods used to encapsulate DS-3's into STS's (and possibly DS-1's into VT1.5's to STS's)
* Troubleshoot Optical Network Problems Related to SONET. Identify the procedure for performing loopback tests to the client and to the network. Given several major failure conditions and their associated alarm indicators, describe how they would affect users, AIS vs LOS alarms, pointer issues, errored seconds, BIP-8 CRC checking, APS Trouble types (see GR-253, section 6.2.1.1.6)
* Implement Synchronization Timing in a SONET Network (Describe the synchronization timing modes, Describe Sync Status Messaging (SSM) and Sync. Distribution.
* Explain the key differences and similarites of SONET and SDH (overhead information, multiplexing, payload mapping, protection schemes, synchronization, and performance monitoring.)
* Describe the internetworking principles between SONET and SDH and the method of transporting SDH over Sonet (SS bits, DCC, line rate)
Service Provisioning, Operation and Troubleshooting (15454 SONET)
* Describe the procedures for configuring a Cisco ONS 15454 in a Data Communications Network.
* Describe the shelf layout, shelf hardware, and backplane interfaces
* Set the timing parameters in the ONS 15454 from the CTC Timing subtab
* Describe the following protection schemes and their application to the ONS 15454. (1+1 (one plus one) protection, 1:1 (one for one) protection, 1:N (one for "N") protection)
* Identify the following, as applied to an ONS 15454. (Typical point-to-point optical fiber routing, 1+1 protection groups, Typical linear add/drop multiplexer (ADM) configuration optical fiber routing.)
* Describe the procedures for creating circuits and their impact on the crossconnect matrices (VT and STS, linear vs. ring)
* Describe the operation and application of unidirectional path-switched ring (UPSR) in the 15454. [Typical optical fiber routing, UPSR STS protection, Typical signal paths, Automatic protection switching, Major steps required to create a UPSR, UPSR dual ring interconnect (integrated and traditional)]
* Identify a virtual tributary (VT) circuit and a VT tunnel, and how each applies to the ONS 15454
* Describe the operation and application of BLSR rings in the ONS 15454 (Typical two-fiber BLSR optical fiber routing, BLSR STS protection, Typical signal paths, Automatic protection switching, Protection channel access, Major steps to create a two-fiber BLSR, Four-fiber BLSR span switching, Four-fiber BLSR ring switching, Two-fiber to four-fiber BLSR upgrade.)
* Describe the Ethernet card types and their application in the ONS 15454
* Identify the major steps needed to add or remove a node to an existing BLSR Ring
* Describe PPMN (Path Protected Mesh Network) in the ONS 15454 and how it compares with UPSR and BLSR.
* Describe the protocol and operation of the ONS 15454 DCC and interoperability requirements in a multi-vendor environment. Make The Best Choice Chose - Examkingdom
Reday to get certified today competitive computer industry Examkingdom's preparation material includes the most excellent features, prepared by the same dedicated experts who have come together to offer an integrated solution. We provide the most excellent and simple method to pass your Cisco Optical Specialist 642-311 exam on the first attempt "GUARANTEED".
Unlimited Access Package
will prepare you for your exam with guaranteed results, 642-311 Study Guide. Your exam will download as a single 642-311 PDF or complete 642-311 testing engine as well as over +4000 other technical exam PDF and exam engine downloads. Forget buying your prep materials separately at three time the price of our unlimited access plan - skip the 642-311 audio exams and select the one package that gives it all to you at your discretion: 642-311 Study Materials featuring the exam engine.
Examkingdom 642-311 Exam Prepration Tools
Examkingdom Cisco Optical Specialist preparation begins and ends with your accomplishing this credential goal. Although you will take each Cisco Optical Specialist online test one at a time - each one builds upon the previous. Remember that each Cisco Optical Specialist exam paper is built from a common certification foundation.
642-311 Exam Testing Engines
Beyond knowing the answer, and actually understanding the 642-311 test questions puts you one step ahead of the test. Completely understanding a concept and reasoning behind how something works, makes your task second nature. Your 642-311 quiz will melt in your hands if you know the logic behind the concepts. Any legitimate Cisco Optical Specialist prep materials should enforce this style of learning - but you will be hard pressed to find more than a Cisco Optical Specialist practice test anywhere other than Certkingdom.
642-311 Exam Questions and Answers with Explanation
This is where your Cisco Optical Specialist 642-311 exam prep really takes off, in the testing your knowledge and ability to quickly come up with answers in the 642-311 online tests. Using Optical Specialist 642-311 practice exams is an excellent way to increase response time and queue certain answers to common issues.
642-311 Exam Study Guides
All Cisco Optical Specialist online tests begin somewhere, and that is what the Cisco Optical Specialist training course will do for you: create a foundation to build on. Study guides are essentially a detailed Cisco Optical Specialist 642-311 tutorial and are great introductions to new Cisco Optical Specialist training courses as you advance. The content is always relevant, and compound again to make you pass your 642-311 exams on the first attempt. You will frequently find these 642-311 PDF files downloadable and can then archive or print them for extra reading or studying on-the-go.
642-311 Exam Video Training
For some, this is the best way to get the latest Cisco Optical Specialist 642-311 training. However you decide to learn 642-311 exam topics is up to you and your learning style. The Examkingdom Cisco Optical Specialist products and tools are designed to work well with every learning style. Give us a try and sample our work. You'll be glad you did.
642-311 Other Features
* Realistic practice questions just like the ones found on certification exams.
* Each guide is composed from industry leading professionals real Cisco Optical Specialistnotes, certifying 100% brain dump free.
* Study guides and exam papers are guaranteed to help you pass on your first attempt or your money back.
* Designed to help you complete your certificate using only
* Delivered in PDF format for easy reading and printing Examkingdom unique CBT 642-311 will have you dancing the Cisco Optical Specialist jig before you know it
* Optical Specialist 642-311 prep files are frequently updated to maintain accuracy. Your courses will always be up to date.
Get Optical Specialist ebooks from Examkingdom which contain real 642-311 exam questions and answers. You WILL pass your Optical Specialist exam on the first attempt using only Examkingdom's Optical Specialist excellent preparation tools and tutorials.
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Great stuff so far....I love this site....!! I am also on the Cisco Optical Specialist I decided to start from Examkingdom and start learning study Optical Specialist from home... It has been really difficult but so far I have managed to get through 4 exams....., now currently studying for the more exams.... Have a good day.................................................. Cheers
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Thanks for your Help, But I have finally downloaded Cisco Optical Specialist 642-311 exam preparation from examkingdom.com they are provided me complete information about the exam, lets hope I get success for the 642-311 exam, I found there exams very very realistic and useful. thanks again
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These are real testimonials. Hi friends! Examkingdom.com is No1 in sites coz in $25 I cant believe this but when I purchased the $25 package it was amazing I Cisco passed 10 Exams using Examkingdom guides in one Month So many thanks to Examkingdom Team , Please continue this offer for next year also. So many Thanks
Mike CA
Thank You! I would just like to thank Examkingdom.com for the Cisco Optical Specialist 642-311 test guide that I bought a couple months ago and I took my test and pass overwhelmingly. I completed the test of 59 questions in about 90 minutes I must say that their Q & A with Explanation are very amazing and easy to learn.
Jay Brunets
After my co-workers found out what I used to pass Cisco Optical Specialist 642-311 the test, that many are thinking about purchasing Examkingdom.com for their Optical Specialist exams, I know I will again
John NA
I passed the Cisco Optical Specialist 642-311 exam yesterday, and now it's on to security exam. Couldn't have done it with out you. Thanks very much.
Oley R.
Hello Everyone
I Just Passed The Cisco Optical Specialist 642-311 Took 80 to 90 Minutes max to understand and easy to learn. Thanks For Everything Now On To 642-311
Robert R.
Hi Examkingdom.com thanks so much for your assistance in Cisco Optical Specialist i passed today it was a breeze and i couldn't have done it without you. Thanks again
Seymour G.
I have used your Exam Study Guides for preparation for Cisco Optical Specialist 642-311. I also passed all those on the first round. I'm currently preparing for the Microsoft and theOptical Specialist. exams
Ken T.
I just wanted to thank you for helping me get myOptical Specialist $50 package for all guides is awesome you made the journey a lot easier. I passed every test the first time using your Guide
Mario B.
I take this opportunity to express my appreciation to the authors of Examkingdom.com Cisco Optical Specialist test guide. I purchased the 642-311 soon after my formal hands on training and honestly, my success in the test came out of nowhere but Examkingdom.com. Once again I say thanks
Kris H.
Dear Examkingdom.com team the test no. 642-311 that i took was very good, I received 880 and could have gain more just by learning your exams
Gil L.
Hi and Thanks I have just passed the Optical Specialist Directory Services Design exam with a score of 928 thanks to you! The guide was excellent
Edward T.
Great stuff so far....I love this site....!! I am also on the Cisco Optical Specialist I decided to start from Examkingdom and start learning study Optical Specialist from home... It has been really difficult but so far I have managed to get through 4 exams....., now currently studying for the more exams.... Have a good day.................................................. Cheers
Ted Hannam
Thanks for your Help, But I have finally downloaded Cisco Optical Specialist 642-311 exam preparation from examkingdom.com they are provided me complete information about the exam, lets hope I get success for the 642-311 exam, I found there exams very very realistic and useful. thanks again
lindsay Paul
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