Monday, April 23, 2012
TNTET Study Materials
i Child Development and Pedagogy (Relevant to Age Group 6 - 11) 30 30
ii Language I (Classes I to V) (Tamil/Telugu/Malayalam/Kannada/ Urdu) 30 30
iii Language II (English) (Classes I to V) 30 30
iv Mathematics (Classes I to V) 30 30
(b) Environmental Studies (Classes I to V) 30 30
Total 150 150
1.Child Development and Pedagogy-30 questions -30 marks
2.Language-I–30 questions -30 marks
3.Language-II–30 questions -30 marks
4(a).Mathematics -60 questions -60 marks
4(b).Social Studies-60 questions-60 marks
Note: for Maths and Science Teachers,candidates will get only 4(a) part
for Social Studies 4(b) paper have to face in tet exam.
Download Materials Link
Friday, January 6, 2012
Awesome Answers In IAS Examination
A. Concrete floors are very hard to crack! (UPSC Topper)
Q. If it took eight men ten hours to build a wall, how long would it take four men to build it?
A. No time at all it is already built. (UPSC 23rd Rank Opted for IFS)
Q. If you had three apples and four oranges in one hand and four apples and three oranges in the other hand, what would you have?
A. Very large hands. (Good one) (UPSC 11 Rank Opted for IPS)
Q. How can you lift an elephant with one hand?
A. you will never find an elephant with one hand. (UPSC Rank 14 Opted for IES)
Q. How can a man go eight days without sleep?
A. No Probs, He sleeps at night. (UPSC IAS Rank 98)
Q. If you throw a red stone into the blue sea what it will become?
A. It will Wet or Sink as simple as that. (UPSC IAS Rank 2)
Q. What looks like half apple ?
A: The other half. (UPSC - IAS Topper )
Q. What can you never eat for breakfast?
A: Dinner.
Q. Bay of Bengal is in which state?
A: Liquid (UPSC 33 Rank)
Interviewer said "I shall either ask you ten easy questions or one really difficult question. Think well before you make up your mind!" The boy thought for a while and said, "my choice is one really difficult question." "Well, good luck to you, you have made your own choice! Now tell me this.
"What comes first, Day or Night?"
The boy was jolted into reality as his admission depends on the correctness of his answer, but he thought for a while and said, "It's the DAY sir!"
"How" the interviewer asked.
"Sorry sir, you promised me that you will not ask me a SECOND difficult question!"
He was selected for IIM!
Technical Skill is the mastery of complexity, while Creativity is the master of presence of mind.
This is a famous paper written for an Oxford philosophy exam, normally requiring an eight page essay answer and expected to be backed up with source material, quotes and analytical reasoning. This guy wrote the below answer and topped the exam!
* OXFORD EXAMINATION BOARD 1987* *ESSAY QUESTION*
Question: What is courage? (50 Marks)
Answer (After 7 blank pages, at the end of the last page…): This is courage.
Wednesday, December 7, 2011
Ethical Hackers
India: an army of ethical hackers
Now, in the wake of repeated assaults on Indian company and government web sites, an organization of self-professed "white hat" hackers is recruiting its own army. “If you see the statistics, less than 15 percent of Indians use the internet, but we are already No. 1 when it comes to virus infections and we are No. 2 in cyber crimes,” said Rajshekhar Murthy, an Indian hacker and entrepreneur. Last month, at Malcon — the malware conference Murthy founded in 2010 — the security expert's nonprofit Information Security and Analysis Center (ISAC) unveiled plans to create a national registry of hackers with the training to protect the country's critical electronic infrastructure.
Called the National Security Database (NSD), the body will accredit and train hackers who pass an exam that will cost about $500 a whack.
“The NSD is a project to address the broader need, not just to identify the best security professionals in India,” said Murthy. The idea is to identify “where these professionals can assist the country not only in solving cyber crimes but in addressing policy issues and assisting in reforms to create better governance of IT security across critical infrastructure projects.”
At a curtain raiser for next year's Global Cyber Security Summit in New Delhi, Information Technology Minister Kapil Sibal called for just such a community of ethical hackers last week.
And for good reason. Already, a drive to eliminate corruption and increase efficiency through e-governance had made many government services vulnerable to attack, and Sibal aims to introduce a bill in parliament this session mandating that all government services be automated.
"To combat cyber crimes and make the cyberspace secure, there is a need for greater government-to-government collaboration on sharing of information, global vision to deal with hackers, legal framework that addresses the requirements at the global, and wider public-private collaboration," Sibal told reporters last month.
Last year, state-owned ONGC found some of its oil rigs had been infected by Stuxnet — and only narrowly escaped catastrophe because they operate on ABB, not Siemens, systems, according to a recent report in India's Tehelka magazine. Similar virus problems were detected at a power generation facility in Gujarat and a communications satellite providing the feed to state-owned Doordarshan television and several DTH broadcasters.
And researchers from the Munk School of Global Affairs at the University of Toronto claimed in 2010 that Chinese hackers had cracked Indian government computers to dig out sensitive information related to defence, foreign affairs and the Dalai Lama, according to another report.
But can a team of rogue operators compete with state-sponsored cyber espionage?
When Stuxnet hit Iran, experts immediately fingered Mossad and the CIA because the man-hours needed to create the complex worm more or less guaranteed it was a state-sponsored project. And one of the biggest failures of India's intelligence agencies is that they rarely listen to each other — much less to outsiders who.Become a cyber security expert and excel in information security. www.innobuzz.in/Hacking
Kepler-22b
Kepler-22b: NASA discovers most 'Earth-like' planet yetThe planet is 2.4 times the size of Earth. It orbits a star similar to the Earth's sun and is believed to have a surface temperature of around 22 degrees Celsius, according to NASA. Astronomers say Kepler-22b's temperate climate makes it possible that it possesses liquid water, CNN reported.
More from GlobalPost: Double sun "Star Wars" planet discovered by NASA Kepler program scientist Douglas Hudgins described the discovery as "a major milestone on the road to finding Earth's twin." NASA still does not know what the planet is made of, however; it could be predominantly rock, gas or liquid. Scientists have "no idea" about the typical composition of planets of this size, Kepler deputy science team lead Natalie Batalha said, since there is no precedent in our own solar system.
Since Kepler-22b is about 600 light years - or 3,600 trillion miles - from Earth, the chances of any earthlings ever making it there are slim.
Kepler uses the "transit method" to detect new planets, MSN said: it monitors stars' brightness and searches for minute dips in light levels when a planet crosses in front of the star. The $600-million observatory has detected 2,326 planets since it began operating in May 2009. Scientists will extrapolate its findings to estimate how many stars have potentially habitable planets orbiting them, Reuters said. Its astronomers are currently preparing a bid for more funding to extend their mission, which is due to end in November 2012.
Tuesday, December 6, 2011
Arthur Christmas
Tom Cruise Promoting 'Mission Impossible 4' In Mumbai
Paramount Pictures’ Mission: Impossible – Ghost Protocol will open on 200 screens from December 14, two days before another 300 domestic screens pre-release the Tom Cruise-starring action picture on December 16.
Well before the wide theatrical release of Mission: Impossible 4 from December 21, Imax screens in the Netherlands will have a six day early release, compared to five days in the UK, three days in France and Poland, two days in Korea, Spain and Taiwan, and one day in various other countries worldwide.
It’s all part of a gamble by Paramount Pictures to build buzz for the blockbuster release on the Imax platform, before Mission: Impossible – Ghost Protocol lands in the local multiplex.
Besides the early engagement window, the Imax release of the fourth installment of the Mission: Impossible franchise features around 30 minutes of scenes shot with Imax cameras, including one scene where Cruise scales the world's tallest building in Dubai.
Dhanush much more than 'Kolaveri Di'
"He is a very dear friend of mine, Dhanush. Very famous and very prominent actor from Chennai. Off late, unfortunately they only seem to know him because of 'Kolavari Di' but, he has done great work down there. He is a wonderful actor," said the 35-year-old actor.
'Kolaveri Di' has received over 17 million hits on Youtube till now and Abhishek terms it as one of the greatest hits of the year.
"I think it's outstanding and I think it's wonderful because it has been made by two very dear friends of mine, Dhanush and his wife Aishwarya. I think it's a fantastic song. He is a very talented guy and Anirudh, the music director has done a great job. I wish them all the best. It's one of the greatest songs of the year," said Abhishek who is awaiting his next release 'Players' by director duo Abbas-Mustan.
'Players', which is releasing Jan 6, also stars Bobby Deol, Bipasha Basu, Neil Nitin Mukesh and Sonam Kapoor.
Abhishek is also working on Rohit Shetty directed 'Bol Bachchan' and 'Dhoom 3'.
Actress Veena Malik
Actress Veena Malik To Sue FHM Magazine For $2 Million Over Naked Photo Shoot
Bollywood actress Veena Malik is to sue FHM India, alleging that photographs of her that appear in the latest issue were "tampered" with to make her look more naked than she actually was.
The Pakistani star has said that she feels "cheated and duped" by her cover shoots, which appears to show her in the nude.
Malik's lawyer Ayaz Bilawala told the
Denying these allegations, FHM India editor Kabeer Sharma responded: "We have seen the notice and forwarded it to our legal department for appropriate action. We are looking at various options, including filing a countersuit."
Malik's legal team have demanded that all copies of the magazine are withdrawn from stores, with the actress seeking $2 million (£1.25 million) in damages.
Wednesday, October 26, 2011
National Eligibility Test
National Eligibility Test December, 2011
| EXAMINATION FEE | |||||||||||||||||||||||
| General Candidates | Rs.450/- | ||||||||||||||||||||||
| Other Backward Classes (Non-creamy layer, as per the Central list of OBC available on website : www.ncbc.nic.in ) | Rs.225/- | ||||||||||||||||||||||
| SC/ST/PH/VH candidates | Rs.110/- | ||||||||||||||||||||||
| MODE OF PAYMENT | |||||||||||||||||||||||
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| SCHEME AND DATE OF TEST : | |||||||||||||||||
| i) | The Test will consist of three papers. All the three papers will be held on 24th December 2011 (SATURDAY) in two separate sessions as under: | ||||||||||||||||
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| | Paper-I shall be of general nature, intended to assess the teaching/research aptitude of the candidate. It will primarily be designed to test reasoning ability, comprehension, divergent thinking and general awareness of the candidate. UGC has decided to provide choice to the candidates from the December 2009 UGC-NET onwards. Sixty (60) multiple choice questions of two marks each will be given, out of which the candidate would be required to answer any fifty (50). In the event of the candidate attempting more than fifty questions, the first fifty questions attempted by the candidate would be evaluated. | ||||||||||||||||
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| | Paper-II shall consist of questions based on the subject selected by the candidate. Each of these papers will consist of a Test Booklet containing 50 compulsory objective type questions of two marks each. | ||||||||||||||||
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| | Paper-III will consist of only descriptive questions from the subject selected by the candidate. The candidate will be required to attempt questions in the space provided in the Test Booklet. The structure of Paper-III has been revised from June 2010 UGC-NET and is available on the UGC website www.ugc.ac.in. | ||||||||||||||||
Syllabus Download Link
Online Registration Click Here
Note: The result of UGC NET, held on June 26, 2011 will be declared in the first week of December 2011.
Tuesday, October 25, 2011
GATE PATTERN & STRUCTURE
The GATE examination consists of a single paper of 3 hours duration. The question paper consists of only objective type questions. Each question will have four choices for the answer. Only one choice is correct.
Question Papers bearing the codes : AE, AG, AR, BT, CE, CH, CS, CY, EC, EE, IN, MA, ME, MN, MT, PH, PI and TF
- Q.1 to Q.25: Will carry one mark each (sub-total 25 marks). 1/3 mark will be deducted for each wrong answer.
- Q.26 to Q.55: Will carry two marks each (sub-total 60 marks) 2/3 mark will be deducted for each wrong answer.
- Q.48 through Q.51 (2 pairs) will be common data questions. Each question will carry two marks 2/3 mark will be deducted for each wrong answer.
- Question pairs (Q.52, Q.53) and (Q.54, Q.55) will be linked answer questions.
- The answer to the second question of the last two pairs will depend on the answer to the first question of the pair.
- If the first question in the linked pair is wrongly answered or is un-attempted, then the answer to the second question in the pair will not be evaluated. Each question will carry two marks
- There will be negative marks only for wrong answer to the first question of the linked answer question pair i.e. for Q.52 and Q.54, 2/3 mark will be deducted for each wrong answer. There is no negative marking for Q.53 and Q.55.
- Q.56 to Q.60 : From General Aptitude (GA) will carry one mark each (sub-total 5 marks). 1/3 mark will be deducted for each wrong answer.
- Q.61 to Q.65 : From GA will carry two marks each (sub-total 10 marks) 2/3 mark will be deducted for each wrong answer.
GATE Examination Solved Question Papers (Previous Years)
Graduate Aptitude Test in Engineering
Previous year Question papers Click Here
Graduate Aptitude Test in Engineering - GATE 2012
1. Last date for Submission of Online Application (website closure at 23:00 Hrs): 21 October 2011 (Friday).
2. Last date for the receipt of printed version of ONLINE Application at the respective zonal GATE Office: 28 October 2011 (Friday)
GATE is conducted through the constitution of eight zones. The zones and the corresponding administrative institutes are:
Zone-1: Indian Institute of Science Bengaluru
Zone-2: Indian Institute of Technology Bombay
Zone-3: Indian Institute of Technology Delhi
Zone-4: Indian Institute of Technology Guwahati
Zone-5: Indian Institute of Technology Kanpur
Zone-6: Indian Institute of Technology Kharagpur
Zone-7: Indian Institute of Technology Madras
Zone-8: Indian Institute of Technology Roorkee
GATE 2012 Examination will include both ONLINE and OFFLINE examinations as per the following schedule:
| Type | Date | Time | Paper Codes |
| Online | 29 January 2012 (Sunday) | 09:00 Hrs to 12:00 Hrs | AR, GG and TF |
| 14:00 Hrs to 17:00 Hrs | AE, AG and MN | ||
| Offline | 12 February 2012 (Sunday) | 09:00 Hrs to 12:00 Hrs | BT, CE, CH, CS, ME, PH and PI |
| 14:00 Hrs to 17:00 Hrs | CY, EC, EE, IN, MA, MT, XE and XL |
Syllabus for GATE 2012 Examination Papers
Important Dates
| GATE 2012 Online Examination for Papers: AR, GG and TF | Sunday | 29 January 2012 (09:00 Hrs to 12:00 Hrs) |
| GATE 2012 Online Examination Papers: AE, AG and MN | Sunday | 29 January 2012 (14:00 Hrs to 17:00 Hrs) |
| GATE 2012 Offline Examination Papers: BT, CE, CH, CS, ME, PH and PI | Sunday | 12 February 2012 (09:00 Hrs to 12:00 Hrs) |
| GATE 2012 Offline Examination Papers: CY, EC, EE, IN, MA, MT, XE and XL | Sunday | 12 February 2012 (14:00 Hrs to 17:00 Hrs) |
| Announcement of results | Thursday | 15 March 2012 (10:00 Hrs) |
Sunday, October 23, 2011
Microsoft Robotics Developer Studio

RDS is based on CCR (Concurrency and Coordination Runtime), a .NET-based concurrent library implementation, for managing asynchronous, parallel tasks using message-passing and DSS (Decentralized Software Services), a lightweight services-oriented runtime, which allows the orchestration of multiple services to achieve complex behaviors.
Features include: a visual programming tool, Microsoft Visual Programming Language, for creating and debugging robot applications, web-based and windows-based interfaces, 3D simulation (including hardware acceleration), easy access to a robot’s sensors and actuators and support for a number of languages including C# and Visual Basic .NET, JScript, and IronPython.
Microsoft Robotics Developer Studio includes support for packages to add other services to the suite. Those currently available include Soccer Simulation and Sumo Competition by Microsoft, and a community-developed Maze Simulator, a program to create worlds with walls that can be explored by a virtual robot.
Robot Software

Dataflow programming techniques are used by most robot manufacturers, and is based on the concept that when the value of a variable changes, the values of other variables affected should also change. A programming language that incorporates dataflow principles is called a dataflow language. In addition to numeric processing, dataflow languages also incorporate functional concepts. Unlike other programming languages which use imperative programming, dataflow programming is modeled as a sequence of functions.
With any programming software, the state of a program at any given time is an important consideration. The state provides an indication of the various conditions at a particular instant. In order to function properly, most programming languages require a significant amount of state information. This information is invisible to the programmer.
Another key concept – which is associated with any type of robot programming, is the concept of runtime. When a program is running, or executing, it is said to be in runtime. The term runtime is also used as a short form when referring to a runtime library, which is a library of code instructions used by a computer language to manage a program written in the language. The term is also used by software developers to specify when errors in a program can occur. A runtime error is an error that happens while the program is executing. For example, if a robot arm was programmed to turn left, and it turned right, then that would be a runtime error.
The software architecture of a system consists of the various software components used to design and operate the software. All programming methods rely on software architecture as a method of organizing a software system since it not only provides communication support but is also a critical component in hardware and software interfaces.
Robots as Vacuum Cleaners

Robot vacuum cleaners need not be restricted to home use only; one can use them in shops, offices, classrooms, etc. Programmed for non-stop tireless cleaning, robot vacuum cleaners can absolutely make a huge difference in the way people utilize their time in cleaning.
Among the best things about robot vacuum cleaners is that their ability to clean hard-to-reach places. They have built-ion surrounding sensitivity sensors that warn them of nearby terrain (ledges and stairs) so they won’t trip or fall over.
Consumers have a wide range of robot vacuum cleaners, each design specifically built to a purpose. Take for instance the iRobot Roomba robot vacuum cleaners, widely featured in various robotics news publications. These machines are specially designed to deliver maximum output when it comes to cleaning. Reports reveal, in fact, that iRobot Roomba line of vacuum cleaners is the best selling in its category all over the world, with prices ranging from CAD $250 to CAD $440.
The Karcher RC 3000 Robocleaner, another favorite of robotics news periodicals, can actually be programmed to do the tasks on its own. For instance, if its battery is exhausted, the Karcher will go to the docking station on its own, or when the dustpan is full, the Karcher would transfer the dirt and dust into a 2.0 L vacuum bag.
Another model that receives noteworthy mention in robotics news is the Metapo CleanMate personal cleaning robot. Like any robot vacuum cleaner, CleanMate is built to deliver tired moms from the hardship of everyday cleaning. It is very multifaceted and can just about clean any surface, from carpets to hard-to-clean surfaces like tiles and hardwood. Even better, CleanMate can concurrently clean, perfume, and disinfect the area.
Saturday, August 6, 2011
Aptech Launches Cloud Computing Course
“Cloud computing is now a critical aspect of IT, so we are targeting both the skilling market as well as the re-skilling market, and the later is fairly large, both within and outside India,” says Ninad Karpe, MD and CEO, Aptech Limited.
Aptech launched its Cloud Computing course here in early December and the course is being offered at three levels: Level 100, Level 200 and Level 300. It plans to introduce this course in Vietnam and other global training centers from January 2010.
Level 100 is the appreciation course (basic level) that offers an understanding of what is cloud computing. Level 300, the advanced level, touches upon cloud programming concepts such as C#, Python and Java. Aptech said it would offer placement assistance for the advanced level.
Training industry veteran Vijay Mukhi is actively involved in the course design, course validation as well as delivery for Aptech’s course.
Says Mukhi, “Our USP is that we show how to handle the growth of data using Hadoop. We teach people how to differentiate between high and peak loads. They will be shown how to handle petabytes of data, so when they later join an organization they know about the technologies that exist, and will be able to cope with data growth.”
According to Mukhi, students are shown technologies used by Internet cloud companies such as Yahoo, Google and Facebook.
“Since there are different cloud models and a lack of standards we thought this should be a neutral course that covers all cloud computing technologies. We are language agnostic and show how to code in different programming languages. We show them samples of code for the cloud,” informs Mukhi.
The interest in cloud computing is growing among IT professionals here in India and people are coming forward to pay for seminars and courses. Mukhi claims 38 people paid Rs 1,000 for a recent two-hour seminar on cloud computing.
Microsoft Silverlight
By mid 2011 Microsoft will have released 5 versions over the course of 4 years: the first version was released in 2007; the current version, 4, was released in April 2010 and the 5th version is scheduled for release in the second half of 2011.[3] It is compatible with multiple web browsers used on Microsoft Windows and Mac OS X operating systems. Mobile devices, starting with Windows Phone 7 and Symbian (Series 60) phones, were expected to be supported in 2010.
More Details.... Plz Visit these sites
http://www.kunal-chowdhury.com/2010/04/silverlight-tutorials-chapter-1.html
http://www.dotnetspider.com/Silverlight-Tutorials.aspx
Red Hat Certified Engineer Exam
Certification description
Red Hat Certified Engineer (RHCE) is earned by a Red Hat Certified System Administrator (RHCSA) who has demonstrated the knowledge, skill and ability required of senior system administrator for Red Hat Enterprise Linux systems.
RHCSA certification is required in order to earn Red Hat Certified Engineer (RHCE).
Exam overview
The RHCE exam is a hands-on, practical exam that lasts 2.0 hours. Candidates are eligible to take the RHCE exam without first having passed the RHCSA exam, but RHCE will not be issued until both credentials are earned by a candidate.
Certification description
Red Hat Certified Engineer (RHCE) is earned by a Red Hat Certified System Administrator (RHCSA) who has demonstrated the knowledge, skill and ability required of senior system administrator for Red Hat Enterprise Linux systems.
RHCSA certification is required in order to earn Red Hat Certified Engineer (RHCE).
Exam overview
The RHCE exam is a hands-on, practical exam that lasts 2.0 hours. Candidates are eligible to take the RHCE exam without first having passed the RHCSA exam, but RHCE will not be issued until both credentials are earned by a candidate.
Exam requirements
The RHCE exam objectives provide authoritative guidance on the knowledge and skills candidates will need to demonstrate in the RHCE exam. They also provide more specific information on the exam format and coverage. All candidates are urged to use this information to evaluate their readiness for the exam.
Candidates will be emailed exam results within three US business days following the exam.
Audiences
- Experienced Linux IT professionals who currently have RHCSA certification, and are interested in earning an RHCE certification
- Experienced Red Hat Enterprise Linux system administrators seeking validation of their skills
- Students who have attended Red Hat System Administration I, II and III or RHCE Rapid Track Course
- Experienced Linux system administrators who require a certification either by their organization, or based on a mandate (DOD 8570 directive)
- RHCEs who are non-current, and have passed the already RHCSA exam
Preparation
Red Hat offers clear training paths for candidates to learn the required skills.
| Audiences | Recommended Action |
|---|---|
| Windows system administrators | Red Hat System Administration I (RH124) |
| Red Hat System Administration II with RHCSA Exam (RH135) | |
| Red Hat System Administration III with RHCSA and RHCE Exams (RH255) | |
| Linux system administrators (1-3 yrs of experience) and Unix system administrators | RHCSA Rapid Track Course with Exam (RH200) |
| Red Hat System Administration III with RHCSA and RHCE Exams (RH255) | |
| Solaris system administrators | Red Hat Enterprise Linux for Solaris Administrators (RH290) |
| RHCE Rapid Track Course with RHCSA and RHCE Exams (RH300) | |
| Non Current RHCEs | RHCE Rapid Track Course with RHCSA and RHCE Exams (RH300) |
Red Hat training courses provide hands-on labs and task-focused activities balanced with facilitated discussion to help course participants build essential skills quickly and effectively. Candidates are advised that real-world system administration experience is also an important aspect of preparation for the exam.
CCNA Exam
CCNA certification can be obtained in two ways. These are:
- Combined CCNA exam or
- 640-822 ICND1 & 640-822 ICND1
CCNA exam is a computer based exam that is conducted by the Sylvan Prommetric (and VUE). The CCNA exam fee is Approximately US$250. CCNA exam will have 50-60 questions and 90 minutes are allowed to complete the exam. The passings score is 849/1000 that is subject to variation. In CCNA exam you will find the following types of questions:
CCNA Exam Pattern
- Multiple choice: single answer questions
- Multiple choice: multiple answer questions
- Fill ups
- Drag-n-drop questions
- Exhibit based questions
- Simulations
- Simlet
- Testlet
CCNA Exam Track
CCNA :Cisco Certified Network Associate.CCDA: Cisco Certified Design Associate
CCNP: Cisco Certified Network Professional
CCIP: Cisco Certified Internetwork Professional
CCSP: Cisco Certified Security Professional
CCVP: Cisco Certified Voice Professional
CCIE (R&S): Cisco Certified Internetwork Expert (Routing & Switching)
CCIE (Service Provider): Cisco Certified Internetwork Expert (Service Provider
CCIE (Security): Cisco Certified Internetwork Expert (Service Provider
| Cisco Certification Path | Entry-Level | Associate | Professional | Expert |
| Routing and Switching | CCENT | CCNA | CCNP | CCIE (Routing and Switching) |
| Network Security | CCENT | CCNA Security | CCSP | CCIE (Security) |
| Storage Networking | CCENT | CCNA | CCNP | CCIE (Storage Networking) |
| Wireless | CCENT | CCNA Wireless | CCNP Wireless | CCIE Wireless |
| Service Provider | CCENT | CCNA | CCIP | CCIE (Service Provider) |
| Voice | CCENT | CCNA Voice | CCVP | CCIE Voice |
| Design | CCENT | CCNA & CCDA | CCDP | CCDE |
After completing these CCNA certification of your own field you can also go for the specialist certifications in advanced Routing and Switching. These include Cisco Routing and Switching Field Specialist, Cisco Routing and Switching Sales Specialist and Cisco Routing and Switching Solutions Specialist.
Wednesday, December 29, 2010
Oracle Updates Free VirtualBox Hypervisor
Technically known as a hypervisor, VirtualBox allows users to create virtualized instances of operating systems running on top of their existing OS. There are versions of VirtualBox available for Windows, Intel Mac, Linux, and Solaris, and it's possible to virtualize those operating systems too, although only the Server edition of OS X is supported.
This time around there are big changes to VirtualBox's licensing system, although arguably for the better. Previously users could choose between the Open Source Edition (OSE), which was available as source code and which needed to be compiled before use, and the main VirtualBox release, which was covered by the Personal Use and Evaluation License (PUEL) and which was
available as a standard, ready-to-go installer.
Only the main release had full USB functionality, beyond simple mouse support. It also featured Remote Desktop Protocol (RDP) to allow remote access of virtual machines.
With version 4, the OSE has gone. Instead, the base VirtualBox release is available in both source code and standard installer formats, and USB 2.0 and RDP support have been shifted to an "extension pack", released under the PUEL.
Full 1.1 USB support is now a feature of the base release. Everything but the extension pack is open source, released under the GPLv2.
None of this means anything for end users, who will notice no difference; both the base release and extension pack remain free of charge and freely available, although users will have to ensure they download and install the extension pack in addition to the main program if their existing virtual machines have USB 2.0 drivers.