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Monday, 23 September 2019
Sunday, 22 September 2019
Cisco Dumps Will be The Appropriate Option For Preparation Of Cisco Exam Preparations
Cisco Author Says New
CCNA Exam Undergoes Largest Change Ever....
Cisco said goodbye to most CCNA tracks, and hello to a consolidated exam. Here's what you need to know about the new CCNA, from th author of every official CCNA guidebook.
Like a phoenix from the fire, a new era of Cisco certifications is rising.
At Cisco Live 2019, Cisco announced sweeping changes to its certification exams, including the Cisco Certified Network Associate, or CCNA, exam. Cisco eliminated the majority of CCNA certification tracks, and out of the ashes came a single, new CCNA exam. Changes also came to other Cisco certifications, such as Cisco Certified Network Professional (CCNP) and Cisco Certified Internetwork Expert (CCIE). Cisco will roll out these changes on Feb. 24, 2020.
Wendell Odom, author of every CCNA Official Cert Guide since the dawn of Cisco certifications, said this new CCNA exam symbolizes the networking industry's increased need for engineers to stretch their skills in ways they never had to before. Odom delves into this historic change in the CCNA 200-10 Official Cert Guide, Volume 1, which is available Sept. 27. Volume 2 will be available in December.
The following interview was edited for length and clarity.
What are the biggest changes you've seen with the new CCNA exam?
Wendell Odom: My favorite [change] is Continuing Education credits for recertification. In the old days, you had to pass a test to recertify. Now, if you take certain courses or attend certain conferences, you get points toward recertification. If you show you're doing work to learn, you don't have to pass the test to recertify. Cisco gives you points, and you're recertified for the next three years. It'll be quicker for engineers to get certifications in the future.
For the CCNA certifications, Cisco basically threw out the baby with the bath water and landed with a single CCNA. I think that left people scratching their heads and wondering what to do now. Cisco announced a consolidated CCNA exam, simply called CCNA, to replace nine of the 10 CCNA tracks, except for CCNA CyberOps.
Wendell OdomWendell Odom, author
The new CCNA exam has about two-thirds of the content from the old CCNA Routing and Switching exam, and about one-third of new material. From one view, it's a whole new CCNA exam. From another, it's a typical revision of CCNA Routing and Switching. Cisco doesn't bill the new CCNA exam as a revision of CCNA Routing and Switching, but the exam topics between them look like a revision.
The CCNA is not a prerequisite for any exam -- you can get to any CCNP track without taking a CCNA test -- but you need the knowledge and skills. I think Cisco streamlined it to get people to CCNP, because, in Cisco's view, people want to get a CCNP and move to higher, more demanding skill levels. That's what employers want. Cisco wants to give people one test to prepare for their first CCNP tests.
The amount of change is subtle. The old CCNA Routing and Switching had a lot of troubleshooting -- more than 30 exam topics had the word troubleshoot, and now there's zero. Cisco backed off the performance-level a bit. It's broader.CCNA guideCl
How will this benefit those who work in multivendor environments?
ick to learn more
about this book.
Odom: For almost everything in the new CCNA exam, you could replace mentions of Cisco with Vendors X, Y and Z. I would say three-quarters of what you learn is generic.
Cisco certifications have been this way for a long time -- you might get the Cisco certification for your resume while primarily working with another vendor's equipment because you learn a lot along the way. The certification can travel well in your long-term career, and you can apply skills you learned to commands from another vendor's command reference.
Odom: Thinking of CCNA as one level of the certification pyramid, it's easily the largest change Cisco has ever made. We had nine CCNAs -- plus CCDA for Design Associate -- and those 10 turned into two: Plain old CCNA and CCNA CyberOps. That change alone is huge.
Thinking of CCNA as one level of the certification pyramid, it's easily the largest change Cisco has ever made.
Wendell Odom
Author
Eight tracks go poof, but the need to know those topics didn't go poof. The need to know basics before more advanced topics didn't go away. Cisco said those topic areas would be at the CCNP level, but, at the same time, there's a higher bar to start CCNP. You need to learn on your own.
This is a different approach for learners. We have to wait and see if the building blocks are now relabeled as CCNP. I think it's to be determined with what Cisco delivers over the next six to 12 months.
How much did industry changes affect Cisco's elimination of various CCNA tracks?
Odom: Cisco changed particulars all the way from the new CCNA exam to CCIE. It seems more than technology-driven. It's not the normal revision cycle for Cisco with that much change. Any exam revision cycle over Cisco's 20-plus years was often driven by technological change. Cisco tended to be slow in a methodical way to cover core things in career certifications rather than introducing the latest and greatest technologies. I think Cisco set itself up to move quicker in the future, especially the early 2020s.
As expected, Cisco added more automation and programmability -- more about what networks look like today. One flash point of Cisco's announcement was a new DevNet certification track that gets into automating and programming networks.
I think whatever form programmability takes will fundamentally change the landscape and see vendors get better-positioned and worse-positioned. It'll require different skill sets for network engineering staffs, and you'll see that reflected in Cisco certification exams.
Monday, 30 July 2018
Tuesday, 20 March 2018
Wednesday, 14 March 2018
Programmable Networks Will Power 'Internet Of Everything,' Says Cisco
The Company's SDN Strategy And Programmable Chips Give It An Edge Over
Rivals, Executives Said
To make the Internet of things a reality, Cisco says that networks must be much smarter and more flexible.
The company wants to build an "Internet of Everything" that connects sensors, mobile devices and network infrastructures, said Padmasree Warrior, director of strategy and technology, on Wednesday.
Cisco estimates that there will be a $ 14.4 billion business opportunity with opportunities to generate money and save money in sectors such as manufacturing, healthcare, smart networks and the public sector. Services that deliver data from multiple sources and require distributed processing will make networks even more critical than they are today, says the company.
"Ninety-five percent of the things in the world today are still not connected to the Internet," said Rob Lloyd, president of sales and development for Cisco, Warrior for a press day at corporate headquarters in San Jose, California.
Although 92 different legacy protocols are used in connected devices today, Cisco expects that most of these objects will connect over IP (Internet Protocol) and play in Cisco's own performance range.
Programmability will be crucial to making these combined systems useful, Warrior said. Cisco hopes to capitalize on this with its network strategy defined by the Cisco ONE software and internally-developed processors in its devices.
As an example of using this new type of infrastructure, Warrior offered buyers the opportunity to plan a trip to a downtown store. The merchant's mobile app could exchange real-time data on store latencies and combine them with information from a city-managed system that uses integrated sensors to determine how many parking lots are available nearby. Drivers arriving at the parking lot can make a short-range wireless point-to-point connection with a kiosk to get a map to the nearest available location.
Cisco has a parking lot in its own headquarters equipped with such sensors under each room, with a system to reserve space for a car and then find the nearest available space on arrival. This could save time and fuel in search of parking, Warrior said.
The combination of sensor data, cloud-based services and distributed local processing will be replicated in many industries, Warrior said. It will promote new types of applications that require more programmable networks, he said.
Cisco ONE is the company's strategy to help networks better understand applications. Essentially OnePK (ONE Platform Kit), which will include 710 APIs (Application Programming Interfaces) to help developers take advantage of current and future Cisco network devices, Lloyd said. With these APIs, developers can address the installed base of $ 180,000 million of Cisco equipment, he said.
Cisco ONE was named Cisco's answer to SDN (Software Defined Networks), though the company says it goes beyond other SDN approaches that focus on separating the transport layer's control from the network.
"Our vision is much wider, we see the network as a platform," said Warrior. Cisco says its approach enables more programmability.
The company's ASICs (application-specific integrated circuits) are another element of programmability, Lloyd said, showing chips for the Cisco Catalyst 3850 Switch and the ASR1000 aggregation service routers. Developers can access the software running on these ASICs through Cisco ONE, Lloyd said.
"The ASICs in the products, with software and services, will allow Cisco to really shake up this industry," said Lloyd.
Sunday, 4 March 2018
Cisco Names 10 Cities Using Its Cloud-Based Smart Service
From Paris to Kansas City, Cities Monitor Traffic, Parking, And Air Pollution With Sensors And Central Dashboards
Cisco, which has been promoting its smart city technologies for more than two years, announced today that 10 cities, including Paris and Copenhagen, are using their cloud-based service to communicate in real time with traffic, parking and environmental sensors.
Insights from the data collected by the Internet of Things sensors can help cities streamline their operations, reduce costs, and respond more quickly to emergencies, Cisco said.
Cisco introduces this technology at the Smart City Expo World Congress 2016 in Barcelona. The network giant calls its service the Cisco Smart + Connected Digital Platform.
"With the Internet of Things boom, we are creating value in the smart city," said Munish Khetrapal, managing director of solutions for smart and connected communities in an interview. "Real-time data is important because a two-minute faster response to an emergency can save thousands of dollars."
Cisco provides smart city networks and sensors that can warn winter motorists of the location of black ice fields so they can slow down or move in a different direction, Khetrapal said. Such a network could also be set up for dynamic billing so that a city would grant a toll discount to drivers taking a less congested route.
"Real-time data enables more informed decisions and reduces energy consumption," he said. Cisco has been working in stealth mode on the platform for three years, he said. Today, Cisco announced that eight cities use the technology in addition to Paris and Copenhagen. They are Kansas City, Mo .; Schenectady, N.Y. Adelaide, Australia; Bucharest, Hungary; Dubrovnik, Croatia; Bangalore, India; Jaipur, India; and Trencin, Slovakia.
By using the platform, Cisco can securely connect the data of all operations in a city, including water management, traffic, parking, lighting, neighborhood security, and more.
In some cities, some data is passed on to citizens and businesses. For example, retailers could see heatmaps showing where the heaviest foot traffic is located near stores. Such data would be anonymous to protect users' privacy. In the case of data from video sensors, faces are blurred, Cisco said.
Many cities work on a common interface or dashboard to connect all the different sensor data. Cisco has created APIs (third-party application programming interfaces) for city managers and other officials to create dashboards.
In one example, Cisco showed Paris using a dashboard from Place de la Nation to monitor parking, street lighting, traffic, and crowds. The Paris Dashboard can also show how many people are in a tourist area and how much time they spend there on average.
Crowds can be counted with video sensors, but also by counting the number of smartphones and tablets connected to a Wi-Fi zone in an area, Cisco said.
Crowd data could also be used to automatically call for more buses or taxis to be displayed nearby. Using multiple datasets, traffic workers could access environmental sensor data to find ways to reduce congestion and air pollution while improving emergency response times, Cisco said.
"For Smart Cities, we have to ... make it so easy to connect new 'things' together so new information can be collected, analyzed and shared," said Cisco Senior Vice President Rowan Trollope on a blog.
Khetrapal said that cities with Cisco's platform can save millions of dollars by building their own networks to connect data from sensors to servers. Using the example of a car park monitoring service, he estimates that between $ 1 and $ 1.10 per parking space per day would cost to install sensors and safely maintain the network. In a parking garage with 1,000 parking spaces that would be about 365,000 dollars per year.
Cisco will not manufacture the sensors and will work with dozens of partners who manufacture them. Cisco will certify the capabilities of various sensors and will help city officials select the sensors they need, Khetrapal said. The company also works with infrastructure and mobile operators, including AT & T, Sprint, Deutsche Telekom and the engineering, consulting and infrastructure company Black & Veatch.
Cisco will also work with IBM to provide its platform for cities, providing IBM Analytics software. "The uniqueness of Cisco is the ability to connect and merge multiple [network and device] protocols," Khetrepal said.
"Most cities are unbelievable in silos, where things like parking and traffic and waste management are separate systems," he said. "It's hard to get most cities to connect everything together, but that's the holy grail for smart cities."
Meanwhile, vendors like Cisco are having to prove viability for cities that use smart technologies that result in lower power and water consumption, or even less crime, Hilton said.
The best ROI in smart city projects has been achieved by installing energy-efficient street lights that can be automatically dimmed at the right times, Hilton said. However, it is a slow and deliberate process of getting cities to add more sensors to a city-wide network.
"Cities can not do everything at once," he added. "Cities will catch up, but it will not happen overnight."
Even Cisco's Trollope admitted that smart city returns are slow. "The results will not come overnight, but changes will happen faster than you might expect," he wrote.
Kansas City will fully deploy the Cisco platform approximately three months after its first collaboration with Cisco about three years ago, said Bob Bennett, Chief Innovation Officer.
Data from multiple sources, including sensors, are used to assess the city's progress through four priorities set by the Mayor of Kansas City, Sly James: efficiency, enforcement, economic development, and education. In each category, multiple calculations are designed to "provide a holistic view of a problem, rather than just a single piece of data leading to a single decision," Bennett said in an email.
For example, Kansas City wanted to monitor the leak of the water system more closely and use data from mass movements to assess its economic activity. Bennett said in May it was possible that the city would use sensors to follow a crowd walking from a busy downtown intersection to see which restaurants are most popular. From there, the city could draw conclusions about what makes a restaurant or another destination more popular.
The city could also detect sensors if the water pressure in a particular environment drops or old lines are leaking.
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