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920-462 - Ethernet Switching - BrainDump Information

Vendor Name : Nortel
Exam Code : 920-462
Exam Name : Ethernet Switching
Questions and Answers : 56 Q & A
Updated On : April 23, 2019
PDF Download Mirror : 920-462 Braindumps
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920-462 Ethernet Switching

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920-462 exam Dumps Source : Ethernet Switching

Test Code : 920-462
Test Name : Ethernet Switching
Vendor Name : Nortel
Q&A : 56 Real Questions

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Nortel Ethernet Switching

Samsung bets massive on network equipment amid Huawei's troubles | killexams.com Real Questions and Pass4sure dumps

Samsung is pouring elements into its telecom community gadget company, aiming to capitalise on the protection fears hobbling China's Huawei, in accordance with enterprise officials and different business executives.

these efforts encompass moving excessive-performing managers and a large number of personnel to the community division from its handset unit, two Samsung sources talked about.

potential shoppers are taking note of Samsung's efforts to reinvent itself as a desirable-tier agency for 5G instant networks and bridge a big hole with market leader Huawei and trade heavyweights Ericsson and Nokia.

French service Orange's chief know-how officer, Mari-Noëlle Jégo-Laveissière, visited Japan final year and changed into impressed with the pace of 5G preparations the use of choice equipment makers including Samsung, a company representative told Reuters.

Orange, which operates in 27 markets and counts Huawei as its good gadget organisation, will run its first French 5G assessments with Samsung this year.

"Samsung is doing a huge push in Europe in the mean time," one business supply observed, declining to be identified.

Underscoring the growing value of the business, South Korean major Minister Lee Nak-yeon visited Samsung's community division in January. In a closed-door assembly all through that consult with, Samsung heir Jay Y. Lee asked for govt aid with recruiting high-stage engineers.

Huawei is battling allegations through the united states and a few other Western nations that its gadget might allow chinese language spying and will not be utilized in 5G networks, with a view to present higher speeds and a number of new services.

Australia and New Zealand have joined the USA in without difficulty barring Huawei from 5G, and a lot of other international locations, exceptionally in Europe, are because a ban. Huawei denies that its gear items any safety chance.

Its woes have presented Samsung with a rare opportunity. Telecom corporations would in the main keep on with their 4G providers for 5G upgrades as they can use current equipment to minimise costs, however many enterprises may now be below political power to switch.

"We're bolstering our network company to trap market opportunities arising at a time when Huawei is the field of warnings about safety," noted some of the Samsung sources.

The sources, who didn't divulge specific figures for the worker moves, declined to be identified as they had been now not authorized to talk on the matter.

eager to seek new boom, notably as income of its mainstay chips and smartphones have begun to drop, Samsung plans to make investments US$22 billion in 5G cell expertise and different fields over three years. It declined to destroy down how a whole lot will go to 5G and the different areas - synthetic intelligence, biopharma and car digital ingredients.

"Samsung is focused on constructing believe with our companions and main the world 5G markets, regardless of different companies," it observed in an emailed statement to Reuters.

requested about Samsung's big push into network machine, Huawei mentioned in a press release that it welcomed competition in the market.

India chance

In India, Samsung is now in talks with Reliance Jio to improve its community to 5G, trying to build on what has most likely been its greatest community success - becoming the key organisation for the upstart provider.

"We do not think 5G is far away in India," a Samsung legitimate with direct advantage of the rely advised Reuters. He declined to be named as a result of the sensitivity of the matter.

Samsung's purchasers consist of US companies AT&T, Verizon Communications and dash and it has 5G network contracts with all three, though it changed into not clear how extensive those contracts are. It also sells to South Korean carriers and has partnered with jap cell carriers to check its 5G gadget.

in lots of circumstances, Samsung substances simplest small items of networks. based on market tracker Dell'Oro neighborhood, the South Korean enterprise holds simply three percent of the international telecom infrastructure market compared with 28 p.c for Huawei.

Its network enterprise made 870 billion received ($1 billion) in operating earnings ultimate yr, based on Eugene funding & Securities. Filings reveal Nokia's network enterprise made about 1.2 billion euros ($1.9 billion) while Ericsson's network operations made 19.four billion Swedish crowns ($2.9 billion). Figures for Huawei were now not purchasable.

finding the americans

One important hurdle for Samsung can be attracting talent amid a dearth of application engineers in South Korea.

"We need greater application engineers and wish to work with the govt to locate that ability," Lee become quoted as announcing via govt officers at his assembly with the prime minister.

Samsung's community enterprise unit employs roughly 5000 americans, in accordance with a govt professional in the southern metropolis of Gumi where Samsung operates its manufacturing flora.

Kim younger-woo, an analyst at SK Securities, expects Samsung to rent one thousand-1500 people for 5G community device this 12 months. Samsung declined to comment on community worker levels and hiring plans.

but Samsung's wager continues to be risky as the lengthy-time period nature of telecom network funding means alternate comes slowly.

Sweden's Ericsson and Finland's Nokia, which got the remnants of once-effective network device corporations Alcatel-Lucent and Nortel, have as yet viewed little revenue boom from Huawei's complications, company executives said.

each are in charge-reducing mode, even in the face of the 5G probability and the problems confronting their largest rival.

indeed, some network operators in Europe are warning that a Huawei ban - now beneath consideration in France, the uk, Germany and different countries - could push back deployment of 5G with the aid of as plenty as three years.

Others warn Samsung may also struggle to develop a global sales and help supplier.

"the style telcos buy products and capabilities from their suppliers demand a lot of time and substances, which is why Ericsson and Nokia have round 100,000 employees and Huawei virtually twice as many," mentioned Bengt Nordstrom, CEO of telecom consultancy Northstream.

however Samsung is taking the lengthy view. In December, it agreed to lengthen its Olympic partnership with the international Olympic Committee via to 2028 and expand its sponsorship to 5G expertise.

The business didn't want to leave its sponsorship spot open to chinese language rivals, a separate source with knowledge of the be counted stated.

"If Samsung dropped the properly cellular sponsorship for the Olympic video games beyond 2020, then who would have taken that spot? it might only were China, Huawei."

(Reporting by using Ju-min Park and Heekyong Yang; additional reporting by means of Gwenaelle Barzic in PARIS, Sijia Jiang in HONG KONG, Olof Swahnberg in STOCKHOLM, Soyoung Kim in DAVOS and Hyunjoo Jin in SEOUL; editing by using Jonathan Weber and Edwina Gibbs)


power over Ethernet moves from the mobilephone to the statistics core | killexams.com Real Questions and Pass4sure dumps

power over Ethernet (PoE) continues to grow, and Voice over information superhighway Protocol (VoIP) is the one biggest market driver, however the technology is pushing into the information middle.

PoE allows for electrical latest to commute through Ethernet native area networks (LAN) to devices by way of a data cable....

This consequences in now not having to hook up gadgets to power cords and might save businesses additional wiring infrastructure and electrician prices.

Mike Flaum, product advertising and marketing supervisor, Ethernet switching, Nortel Networks, observed clients can start to construct a converged network through integrating PoE. He noted it is inevitable, and that businesses are heading that method.

Chris Ferski, director of IT for Minneapolis-based mostly Goldsmith-Agio-Helms, agreed. "all and sundry is relocating in that path," Ferski observed. He cites the capability to retailer cash and the market growing telephony products geared towards "converged businesses," as motives to improve to PoE.

Ferski views his IT and telecom infrastructure as a convergence, and he features to his business's use of utility telephones for example. His business is an investment banking enterprise and personnel can make the most of these phones when touring or working from domestic.

a major improvement for IT professionals is that PoE deployment is readily integrated into the network. Brad Sandt, lead community engineer, Park Hill college District in Kansas metropolis, Mo., stated he determined to put money into PoE after he noticed the knowledge of VoIP, and the reality he did not must deploy the natural AC energy cords and wiring infrastructure. Sandt is in the middle of 1,100 mobilephone rollout in 18 constructions.

"I couldn't imagine doing it with out [PoE], Sandt mentioned. "All you have to do is plug the cell into the jack into the wall and ensure or not it's plugged right into a powered turn on the different side, and you are able to go."

greater than telephones

beyond VoIP telephones, there are a number of other purposes for PoE, including instant entry features and security cameras. but within the information middle, network swap machine is the No. 1 PoE concern.

Cisco programs Inc., Nortel, 3Com Corp., Hewlett-Packard Co., Foundry Networks Inc., F5 Networks Inc., force 10 Networks Inc., GarrettCom Inc. and PowerDesine all manufacture PoE swap hardware.

One issue facts center execs will ought to contend with when due to the fact that PoE is can charge. usually, such items are 10% to 20% greater per port than standard Ethernet products. besides the fact that children, with the potential to store on cabling infrastructure and telephony charges with VoIP integration, the return on investment (ROI) argument can be made to upper management.

"Most CIOs and CFOs see it as a mild top rate it really is value it," pointed out Robert Whiteley, senior analyst, business Networking, Forrester research. PoE switches usually have a 5-to-seven yr lifespan.

As PoE switches can draw greater energy, yet another consideration for engineers is to determine their uninterruptible power deliver (UPS) loads with the new switches calculated within the vigour price range with a view to make sure they might not go over the boundaries throughout outages.

"They may have an influence finances, and as quickly as they enforce PoE, they exceed their current or finances," explained Fred Weiller, senior product supervisor, Cisco Catalyst Switching advertising.

a probable future problem for PoE is the means to power bigger gadgets. cutting-edge 802.3af IEEE energy standard permits up to 15.4W, but vendors and end users would like to see the highest wattage skill raise. as an instance, a VoIP phone could be capable of run under the latest energy ordinary, however to vigour a kiosk, that might also take 25W.

besides the fact that children 802.3af is simply a bit over three years historical, a brand new normal, 802.3at, has been proposed. Some say this new usual may well be handed by way of subsequent year, and providers are developing items that may be utilized at greater power requirements. IT authorities are observing to see what happens subsequent.

Carrie Higbie, international community functions market manager at Watertown, Conn.-based mostly Siemon and president of the Blade programs Alliance believes VoIP will continue to be the No. 1 utility in the future. She noted that despite the fact that the proposed 802.3at usual is handed, it can be able to add some power to instruments that can not be operated nowadays, equivalent to heavier protection cameras, but that the demand for VoIP will continue to be the market driver.

Higbie has additionally been working with Telecommunications trade affiliation (TIA)/ISO as they look at the results of what the 802.3at commonplace would do to the records middle. She stated it is too early to actually comprehend what forms of challenges the data center would face. "there's lots of stuff to be ironed out," Higbie brought up.

She is confident concerning the future of PoE and notes that providers are refining switches and believes this innovation is cause for the market to continue to develop. however, she talked about there is not an expectation that there should be drastic alternate when it comes to powering bigger devices.


information Releases | killexams.com Real Questions and Pass4sure dumps

MCALISTERVILLE, Pa., Aug. 22 /PRNewswire-FirstCall/ -- Embarq (NYSE: EQ) introduced today the migration of the business's one millionth consumer from a circuit network to a packet community. This technological evolution allows Embarq's development and start of imaginitive commonplace experience items and features.

"it is an honor that this milestone happened in our neighborhood," stated Teresa O'Neal, Chair of the Juniata County Commissioners, site of the most contemporary network improve. "Our residents appear forward to having fun with the next era of usual experience items and features that this could facilitate."

"The platform allows for us to provide converged voice and records services," mentioned Jim Hansen, senior vp of network capabilities for Embarq. "products like an built-in voicemail platform serving both wireline and wireless contraptions, or smart join the place customers' telephones swap seamlessly between a wireline and instant network don't seem to be as functional on a circuit-primarily based network, and an awful lot more problematic to make available. The packet community makes it more straightforward for us to make imaginative items obtainable to our consumers a lot greater instantly than during the past."

also, packet know-how handles voice and facts messages more correctly than the existing circuit community, allowing Embarq to in the reduction of future fees on community upgrades.

The company all started its packet conversion with Nortel (NYSE: NT; TSX) in may additionally of 2003 serving consumers in Gardner, Kan. considering the fact that that time, Embarq has incessantly advanced moving valued clientele to the new community know-how, outpacing others in the business.

"Nortel's service VoIP and multimedia solutions permit Embarq to greater effectively present its clients subsequent-technology communication features," referred to Alf Decardenas, commonplace supervisor, Converged Multimedia Networks, Nortel. "We're thrilled to work with Embarq as they migrate in opposition t an excellent more sophisticated community that can provide integrated voice, video and statistics features. this is further proof they are basically dedicated to offering their customers typical sense products and services."

To help Embarq's community migration, Nortel has deployed its provider VoIP and Metro Ethernet solutions, including the verbal exchange Server (CS) 2000 and Metro Ethernet Router switch (MERS) 8600 in addition to provided flip-key migration services from the Nortel world capabilities Portfolio.

About Embarq

Embarq company (NYSE: EQ) gives a complete suite of communications capabilities to customers in its local service territories. Embarq, which is expected to rank among the Fortune 500, brings standard-experience concepts, reliable service and a renewed dedication to the communities it serves. Embarq focuses on providing its purchasers practical, inventive products and aggressive pricing. The enterprise has approximately 20,000 employees and operates in 18 states providing local and long distance voice, facts, high velocity internet, instant, and entertainment services. For greater advice, consult with http://www.embarq.com .

About Nortel

Nortel is a identified chief in supplying communications capabilities that increase the human experience, ignite and vigor international commerce, and comfy and protect the area's most essential assistance. Serving each provider company and business clients, Nortel offers creative know-how solutions encompassing conclusion-to-end broadband, Voice over IP, multimedia services and purposes, and instant broadband designed to assist individuals remedy the realm's most appropriate challenges. Nortel does enterprise in more than a hundred and fifty international locations. For greater assistance, discuss with Nortel on the internet at http://www.nortel.com . For the latest Nortel news, consult with http://www.nortel.com/information .

SOURCEEmbarq organisation

internet web site: http://www.embarq.com

http://www.nortel.com 


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Ethernet Switching

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eWEEK’s Top Vendors: Data Center Network Switching Providers | killexams.com real questions and Pass4sure dumps

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Integrated Automotive Ethernet Solution Powered by the Marvell 88Q5050 Ethernet Switch and ESCRYPT Firewall and Intrusion Detection System | killexams.com real questions and Pass4sure dumps

Santa Clara, U.S. and Bochum, Germany; February 18, 2019 –ESCRYPT and Marvell®, a leader in infrastructure semiconductor solutions, are offering a joint solution to secure Ethernet-based in-vehicle communication. The Marvell 88Q5050 automotive secure switch integrates ESCRYPT‘s CycurGATE firewall and intrusion detection system to provide an enhanced level of end-to-end security to the automotive customers.

The Marvell 88Q5050 is an automotive Ethernet Gigabit switch with cutting-edge security features to prevent malicious attacks or compromises to the data streamed in the vehicle. This advanced switch employs deep packet inspection (DPI) techniques and Trusted Boot functionality to deliver extraordinary security in automotive Ethernet networks. The switch supports both blacklisting and whitelisting addresses on all of its Ethernet ports to further enhance its security.

If used as an integrated component of the switch, ESCRYPT’s CycurGATE automotive firewall will support all filter mechanisms inside the Marvell 88Q5050 ethernet switch: stateless packet inspection, dynamic stateful inspection, and deep packet inspection. The entire packet flow is monitored and managed centrally – with no resulting interference with the host controller of the individual ECUs. The firewall supports all standard routing schemes and can be used on the switch either as a library or as a standalone solution. CycurGATE makes the most of the hardware acceleration on the switch. The switch hardware and software are algorithmically so interwoven that the firewall can process the majority of data packets at wire speed.

The Marvell 88Q5050 Ethernet switch is also available with ESCRYPT’s integrated intrusion detection system. The intrusion detection system is an embedded security component that monitors in-vehicle communication so it can detect anomalies, typical intrusion signatures, and abuse of diagnostic mechanisms.

Marvell is a market pioneer in Ethernet technology and is committed to providing the automotive industry with robust vehicle networks that meet the high bandwidth, low latency demands of advanced vehicles systems with superior safety and security. “We are excited to partner with ESCRYPT to bring a comprehensive solution for a multi-layered cybersecurity protection for vehicles to not only detect but take rapid action to ensure the safety of the vehicle occupants and the surrounding road users,” said Jyotsna Chitri, Sr. Product Manager of Automotive Networking Products, Marvell Semiconductor, Inc.

“Together with Marvell, we offer our customers a complete solution to secure in-vehicle Ethernet networks. This solution provides comprehensive protection against unauthorized access and ensures security of onboard communication from the switch – virtually right out of the warehouse,” said ESCRYPT Product Manager Siddharth Shukla. This is how the Marvell 88Q5050 Ethernet switch with integrated ESCRYPT security functions has already proved itself in large-scale automotive production.

About MarvellMarvell first revolutionized the digital storage industry by moving information at speeds never thought possible. Today, that same breakthrough innovation remains at the heart of the company’s storage, processing, networking, security and connectivity solutions. With leading intellectual property and deep system-level knowledge, Marvell’s semiconductor solutions continue to transform the enterprise, cloud, automotive, industrial and consumer markets.Read more on www.marvell.com

About ESCRYPTESCRYPT is a leading supplier of IT security solutions in embedded systems and of consulting and services for enterprise security and IT-secured manufacturing. Millions of ESCRYPT solutions are currently in use, especially in automotive security and automotive manufacturing applications. In addition, ESCRYPT provides dedicated security services for corporate IT to the Bosch Group and its products.ESCRYPT was acquired by the Bosch Group subsidiary ETAS GmbH in 2012 and is headquartered in Bochum, Germany. The company is active all over the world with locations in the UK, France, Sweden, the US, Canada, India, China, Korea, and Japan.More information is available at www.escrypt.com


The Best Software-Defined Network for the Best Network Efficiency (or Getting Ready for Exascale) | killexams.com real questions and Pass4sure dumps

Software-Defined Networking (SDN) is a concept that has emerged in recent years to decouple network control and forwarding functions. SDN promises to enable a manageable and cost-effective network that fits the needs of high-bandwidth applications. Most published SDN-related information talks about Ethernet networks and describes the effort to adjust Ethernet to the needs of today’s applications.

The one network type that does not require special effort to adjust it to the computational needs of high-performance computing, deep learning or any other data intensive application is InfiniBand. InfiniBand was specified (in 1999) as the ultimate software-defined network, long before the term SDN was coined.

InfiniBand networks can be fully controlled and managed by a software element called a subnet-manager. Unlike Ethernet, InfiniBand does not have different kinds of network switches, such as “top of rack” or “aggregation level” switches, because it uses the same building block to create any size of infrastructure—from a small cluster to an Exascale platform, and to form a sort of network topology. InfiniBand does not carry the complex network algorithm baggage that Ethernet does, which becomes more onerous from generation to generation, and creates performance and cost burdens on the Ethernet infrastructure. Moreover, InfiniBand switch latency is 3 times better than the best Ethernet switch on the market today (and probably in the future too), and InfiniBand networks can be 30 percent or more better cost effective than the bandwidth equivalent Ethernet network.

20 years ago, there were two leading proprietary networks in the world of HPC: Myrinet from Myricom and QsNet from Quadrics. Looking back, one of the mistakes both vendors made was to switch from a full proprietary network to using Ethernet as the underlying network and to run their proprietary transport over Ethernet, tying their roadmap to Ethernet. The reason for this move was clear: reducing the R&D efforts needed to develop a network. But the cost was high: Performance limitations, adding complexity and scaling issues due to Ethernet. As a result, Myrinet and QsNet fell behind InfiniBand—a network that was designed for data-intensive applications. As a side note, Quadrics became defunct in 2009. Their IP was later used by Gnodal to create Ethernet switches running the Quadrics protocol inside the switch. But Gnodal did not succeed and was defunct in 2013. Also, the same IP is now being used by one of the HPC system vendors for their new proprietary interconnect, which again is trying to run a proprietary network transport over Ethernet, in spite of the failure of previous attempts.

Beyond high latency, which escalates with the size of the network infrastructure, Ethernet also suffers from congestion control (such as ECN and QCN) and routing schemes that do not fit dynamic HPC and AI workloads. A vendor trying to use Ethernet as the basis for proprietary network transports will need to invest in developing proprietary protocols to handle these issues, which is complicated and leads to overall lower performance.

The InfiniBand specification is handled by IBTA (InfiniBand Trade Association); as an industry standards-based interconnect technology, InfiniBand is proven to provide forward and backward compatibility across generations of technology. As the ultimate software-defined network, InfiniBand provides low latency, smart routing and congestion-avoidance mechanisms together with the ability to support vendor-defined In-Network Computing acceleration engines. In-Network Computing transforms the data center interconnect into a “distributed co-processor” able to handle and accelerate the performance of various data algorithms, such as reductions and more.

In-Networking Computing is the heart of today’s and tomorrow’s data-centric data centers. Firstly, it provides the ability to offload all network functions from the CPU to the network. And secondly, it allows offloading various data algorithms. Examples are Mellanox Scalable Hierarchical Aggregation and Reduction Protocol (SHARP)™ technology, interconnect-based MPI Tag Matching and Rendezvous protocol network engines, and more.

In looking at InfiniBand routing schemes, InfiniBand provides a very efficient and robust fine-grained adaptive routing. For known application patterns, InfiniBand enables supercomputer managers to use perfectly matched static routing schemes, and to easily optimize them for their needs. For supercomputing infrastructures supporting a wide variety of HPC and AI workloads, InfiniBand offers adaptive routing. InfiniBand also ensures reliable data delivery and does not drop packets.

Oakridge National Laboratory’s (ORNL) Summit supercomputer and Lawrence Livermore National Laboratory’s (LLNL) Sierra supercomputer reflect the DoE Exascale architecture path and are ranked number 1 and number 2 on the November 2018 TOP500 supercomputers list. These systems leverage InfiniBand for its high throughput, low latency, routing protocols, and In-Network Computing engines to deliver an efficient and scalable computing infrastructure. In a paper titled “The Design, Deployment, and Evaluation of the CORAL Pre-Exascale Systems,” people from Oak Ridge and Lawrence Livermore labs explore the performance advantages of the InfiniBand network, including the performance of InfiniBand adaptive routing technology.

Figure 1 and Figure 2 showcase the testing results on the Summit supercomputer. These results are based on the Bisection bandwidth benchmark MpiGraph, which explores the performance of MPI process pairs in full permutations. Figure 1 presents the histogram results, in which adaptive routing showcases that all MPI pairs achieve nearly maximum bandwidth, while static routing suffers from congestion that limits data bandwidth. Figure 2 highlights the same results differently, where lighter colors represent less variation and data traffic congestion between pairs of nodes. Adaptive routing in InfiniBand sustains 96% network utilization at a large scale (this is the fastest supercomputer in the world today). This level of network utilization is higher than other existing networks, and future proprietary networks on paper.

Figure 1 – MpiGraph Performance Results of InfiniBand – Demonstrates the Performance Advantages of Adaptive Routing over Static Routing

Figure 2 – MpiGraph Performance Results of InfiniBand – Demonstrates the Performance Advantages of Adaptive Routing over Static Routing

Another aspect of InfiniBand is its ability to support any network topology one can design. For example, InfiniBand is being used to form Fat-Tree (CLOS) topologies, Hypercube and Enhanced Hypercube, Torus, Mesh, Dragonfly+ and more. The InfiniBand Dragonfly+ topology enables lower latency versus other Dragonfly topologies used in proprietary networks. The current HDR 200 gigabit InfiniBand solution can connect more than 160 thousand endpoints with the Dragonfly+ topology at 3 switch connection hops. And the upcoming NDR 400 gigabit InfiniBand technology can connect more than 1 million endpoints in the same manner.

By leveraging the economy of scale, and the scale of performance, InfiniBand is the leading interconnect solution for the Exascale era.



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References :


Dropmark : http://killexams.dropmark.com/367904/11618644
Wordpress : http://wp.me/p7SJ6L-Zq
Issu : https://issuu.com/trutrainers/docs/920-462
Dropmark-Text : http://killexams.dropmark.com/367904/12149194
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RSS Feed : http://feeds.feedburner.com/Nortel920-462DumpsAndPracticeTestsWithRealQuestions
weSRCH : https://www.wesrch.com/business/prpdfBU1HWO000CAXG
Box.net : https://app.box.com/s/h2a479gypo4kv7prncd7iesqpcqlpyfm
publitas.com : https://view.publitas.com/trutrainers-inc/nortel-920-462-dumps-and-practice-tests-with-real-questions
Calameo : http://en.calameo.com/books/0049235265d477d23904f
zoho.com : https://docs.zoho.com/file/5qy3o252edc4037c148c38bd7fb154e5cb800






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