Effective February 1, 2009, Cisco will introduce a new type of question format to CCIE Routing and Switching lab exams. In addition to the live configuration scenarios, candidates will be asked a series of four or five open-ended questions, on the computer screen, drawn from a pool of questions based on the material covered on the lab blueprint. No new topics are being added.
2/18/2009
Updates to the CCIE Lab and Written Exam Question Format and Scoring
2/17/2009
Android G1 - more battery
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2/15/2009
Nokia 5800 Xpress Music
As we know there is few very big players on the Mobile Operation System business at the moment - Microsoft with Windows for mobiles/Google with Android/Apple Iphone and maybe BlackBerry (hopefully Palm very soon)
So when you start playing with Nokia 5800 the first impression is like the last impression
it's crap.. you have to pay for every application which is in the "software download applications"
compared with Apple (for example) they just announced that they have 20.000 applications
I am not sure how many are they in Android.
I personally don't recommend this phone to anyone.. this idea of double touch the icon to
activated it it's really anoying.. the phone customization is really bad - it suppose to be
more interactive. hm.. Let me tell two good things for this phone.. it has good battery
and really good GPS chip + offline maps. (u have to pay licenze)
2/12/2009
Velocity1 and BBC
2/08/2009
Optical chip could lead to terabit Ethernet
Danish and Australian researchers have developed a chip that efficiently reads 640Gbps optical transmissions and could help pave the way to terabit Ethernet.
The breakthrough comes not on the laser end of the connection by boosting the speed of transmission, but rather at the receiving end where very high speed, error-free reception is required to sort out multiple wavelengths of signals that have been multiplexed at the sending end.
The discovery comes just as 100Gbps Ethernet is in its infancy but predicted to become more common over the next three years.
The new receiver technology described in an article to be published Feb. 16 in the journal Optical Express relies on a 5 cm optical waveguide, a dramatic reduction in size over competing technology that requires 50 meters of special optical fiber and is inherently unstable, according to the Optical Society of America
The researchers say the compact size of their waveguide makes it possible to integrate it with other components to make faster optical chips.
Current top-speed optical networking employs optical time-division multiplexing (OTDM) that creates 64 10Gbps channels on a single wavelength, according to Leo Spiekman, a co-chairman of the Optical Fiber Communication conference scheduled for March in San Diego, Calif.
In order to demultiplex such an OTDM stream, a second control wavelength of light is introduced to the signal stream to read a particular channel. In current demultiplexers, that process takes place on spools of fiber where the length is so great that the signal and the control streams get out of phase, he says. The device from the researchers is short enough so this dispersion is not a problem, Spiekman says.
The experimental all-optical demultiplexing is done with a chip made of the material chalcogenide, the researchers say.
"You need this type of technology to make terabit speeds on single channels," Spiekman says. "This is one of the enablers for you to go to terabit Ethernet at some point in the future."
The researchers are led by Leif K. Oxenløwe of the Technical University of Denmark and scientists at the Centre for Ultrahigh Bandwidth Devices for Optical Systems in Australia.
100 Gigabit Ethernet trumps OC-768 by 2012, firm say.