310-200 brain dumps

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310-200 Exam
Sun Certified System Administrator for Solaris 10 OS.Part 1
Exam Number/Code : 310-200
Exam Name : Sun Certified System Administrator for Solaris 10 OS.Part 1
Questions and Answers : 225 Q&As
Update Time: 2010-08-19
310-200 Price: $ 70.00

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Exam : SUN 310-200
Title : Sun Certified System Administrator for Solaris 10 OS.Part 1
1. Most files in the Solaris OS make use of data blocks. Which two do NOT use data blocks for storage? (Choose two.)
A. Hard link
B. Directory
C. Device file
D. Symbolic link
Answer: AC

2. You have installed a package called SUNWvts onto your system.
Where is the information about every file and directory contained in this package stored?
A. /var/sadm/messages
B. In your home directory.
C. /var/spool/SUNWvts
D. /var/sadm/install/contents
E. /var/adm/installed/contents
F. /etc/default/installed/packages/information
Answer: D

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642-812 brain dumps

642-812 Exam
Building Cisco Multilayer Switched Networks
Exam Number/Code : 642-812
Exam Name : Building Cisco Multilayer Switched Networks
Questions and Answers : 227 Q&As
Update Time: 2010-05-31
Price: $ 120.00

642-812 Exam Demo
3. Which statement is true about RSTP topology changes?
A. Any change in the state of the port generates a TC BPDU.
B. Only nonedge ports moving to the forwarding state generate a TC BPDU.
C. If either an edge port or a nonedge port moves to a block state, then a TC BPDU is generated.
D. Only nonedge ports moving to the blocking state generate a TC BPDU.
E. Any loss of connectivity generates a TC BPDU.
Answer: B

4. Refer to the exhibit. What is the effect when the switchport priority extend cos 3 command is configured on the switch port interface connected to the IP phone?
A. Effectively, the trust boundary has been moved to the PC attached to the IP phone.
B. The computer is now establishing the CoS value and has effectively become the trust boundary.
C. The IP phone is enabled to override with a CoS value of 3 the existing CoS marking of the PC attached to the IP phone.
D. The switch will no longer tag incoming voice packets and will extend the trust boundary to the distribution layer switch.
E. RTP will be used to negotiate a CoS value based upon bandwidth utilization on the link.
Answer: C

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642-812 Exam Tips
Implement VLANs.
Explain the functions of VLANs in a hierarchical network.
Configure VLANs (e.g., Native, Default, Static and Access).
Explain and configure VLAN trunking (i.e., IEEE 802.1Q and ISL).
Explain and configure VTP.
Verify or troubleshoot VLAN configurations.

Conduct the operation of Spanning Tree protocols in a hierarchical network.
Explain the functions and operations of the Spanning Tree protocols (i.e., RSTP, PVRST, MISTP).
Configure RSTP (PVRST) and MISTP.
Describe and configure STP security mechanisms (i.e., BPDU Guard, BPDU Filtering, Root Guard).
Configure and Verify UDLD and Loop Guard.
Verify or troubleshoot Spanning Tree protocol operations.
Configure and verify link aggregation using PAgP or LACP.

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Light and Sound Machines – Meditation Training Wheels for the Brain?

 

Stress relief, superlearning, heightened focused concentration, creativity, superlearning, easy changework, instant Samadhi. These are goals that can be reached if you use a Light and Sound Machine. Sometimes called a Brain Machine or Audio and Visual Stimulation (AVS), these devices allow the user to reach states of being in a controlled way.

 

Neurologists have studied the brain since the late 1800’s seeking ways to help people with brain injuries and learning dysfunctions. Recent discoveries have reached the general population. If something can help a subject with a learning disability or brain injury, what could it do for a “normal” person?

 

The brain has 100 billion neurons generating and transmitting electrical signals. These signals can be detected by devices called EEG machines (electroencephalograph) One of the big discoveries was the correlation of brain waves to states of being. Stress, alertness, relaxation, mediation, and sleep have been shown to match particular wave patterns. Neurologists have given these brain wave patterns names taken from the ancient Greek Alphabet. Typical alert behavior registers at 30 or more hertz (cycles per second). Alpha state is a condition that is easily achieved by closing the eyes and relaxing. 7-13hz is the range for the Alpha condition. Sleep is the lowest frequency at 0.5 to 3hrz.

 

The most difficult state to achieve and maintain is the in-between state of Theta (3-7hz). It is the state found in the brains of meditation masters. Many students of meditation work for years to reach the Theta state reliably and consistently. Either the mind wanders off into some train of thought or it falls asleep. What if there was a way to quick and easy way to learn how to meditate?

 

In the late 50’s a radio broadcaster named Robert Monroe was experimenting with sound tones for super-learning. He discovered that sound frequencies created certain effects in the brain. When two different frequencies are played in both ears the brain will resonate at the vibration that is the difference between the two tones. If one tone is played in the left ear at 110hz and 100 is played in the right ear the brain waves will resonate at 10hz, which is the same as Alpha Waves. The same effect is triggered by flashing or flickering light. That is why looking at a campfire is so relaxing. The flames just happen to flicker at the alpha rate. He coined the term Frequency Following Response (FFR).

 

Light and Sound Machines are devices that bring that experience from the lab into your home for a fraction of the cost. Typically they consist of a controller, stereo headphones and lightglasses. The controller is a computer that creates the light and sound sessions. There is a user interface for selection of time, and the combination of desired frequencies or brain states. They can be selected manually, or a pre-programmed session can be picked. Headphones provide the sound with high quality comfort. The lightglasses are like opaque sunglasses with two or more LED lights positioned over the eyelids.

 

Here are some features that can be found in superior brain machines:

 

• Rechargeable batteries – nothing worse than a blissful L&S session cut short due to dead batteries.

 

• Input jack – add music or hypnosis recordings to the sessions

 

• Programmability – custom design your own sessions.

 

• Two or more output jacks – share the experience

 

• Ramp up ramp down – a gentle beginning and end

 

• Download sessions via computer – add to your collection

 

• Color choice – red, green or yellow -what is your preference?

 

• Carry case or bag – safely store and transport

 

• Ongoing customer support – what happens when you have a question or problem?

 

My personal experience with brain machines started in the late eighties. I discovered the book Megabrain by Michael Hutchison. He described various technologies for accessing and enhancing brain states such as brain machines, float tanks, nutrition, and electro-stimulation.

 

I purchased a basic AVS unit from a direct mail advertisement and began to use it regularly. I experienced some sublime peak experiences using it along with meditation tapes.

 

The system I am using now is called Nova Pro by Photosonix. I have used it for approximately ten years. It is a real workhorse and creates beautiful experiences for me. The only trouble I have had is with the headphones. They had to be replaced after the phone cord got sucked into a vacuum cleaner. Totally my fault, but easy enough to go to any department store and pick up a new set of headphones.

 

So, where do you get a Light and Sound Machine? There are a number of manufacturers and even more distributors for them. I have discovered that there is a cost savings by going directly to the manufacture if you can. That is why I picked the Photosonix unit. I got a great price for it. I am still using it after all this time.

 

Ebay is a good source for a great bargain on an L&S machine. Some are sold brand new, others are used and at a remarkable savings.

 

Amazon is an excellent source. They carry the book Megabrain and Light and Sound Machines

Computer Processors : Elements and Components

Computer processor is the main part of the computer because it is responsible for all the operations done through the computer. In order to work, some components must exist inside the CPU chip. Here is an overview of such components. The processor is mainly the brain of the computer because it controls all the processes done through the computer from typing to transferring data to remote computers. Inside the processor there are some basic elements the work together to make the processor functional. These elements are as follow:

1. Arithmetic Logic Unit (ALU): This is the main block in the processor and the most important. The ALU is responsible for performing all the computations needed through the processor. When the user, for example, enters a numbers to add, this unit makes the computation and outputs the result to the output devices. All the arithmetic operations such as adding, subtraction, multiplying, or division is performed using this unit. Also the logical operations such as ANDing, ORing are also done using this unit. The unit accepts the data, then performs the operations and then output the results to other units inside the processor.

2. Registers: This is another type of devices existed inside the processor. The registers are responsible for saving temporarily the results obtained from other devices such as ALU. One can think of registers as a short term memory as it save some values for a short period of time and then takes other values as needed by the computing devices. For example when you add two numbers if you take the first two numbers and add them and see the result is higher than ten you save the remaining in your head and this saving corresponds to putting the number remained in a register.

3. Buses: This is the third type of components existed inside the processor. The main use of the bus is to transfer any type of data between components inside the processor or among the processor and the remaining devices inside the computer such as motherboard. The buses are divided into three main subtypes:

A. data bus: this type is used to transfer the data bytes between elements inside the processor. For example when the ALU outputs the result it may transfer it to registers by the data bus. It is named so because it is responsible to transfer only data bytes.

B. Address bus: this type of buses is used to fetch certain data from memory based on the number on the address bus. For example if the address bus has a binary value of 1101. Then it will fetch the value in memory in that address. Thus the address bus tells the processing units where to find the data in memory or where to put the computed data in memory.

C. Control bus: this type of buses is used to transfer control signals between elements of the processor. For example, when an instruction is decoded that it has addition operation, it will inform the ALU that the operation is addition by putting certain value on the control bus. When the Processor decodes this value it will understand that the operation is addition based on the value on the address bus.

4. Decoders: this type of devices is used to tell the processor what must be done based on the instructions in the memory written by users. So if ,for example, some bytes are found in the memory that corresponds to an addition instruction the decoder will read them and knows that it is addition based on the bytes contained then it will activate the control lines to inform the processor that it is an addition. Thus the processor is considered an interface between the memory and the processor.

Stanford Media X Ten Innovation Trends: Robotics, Aging, Clean Tech, Brain, Gaming, Science and More

Copyright (c) 2007 SharpBrains

The goal of Stanford University Media X is to foster collaborations between industry and academia. The 5th Annual Media X Conference on Research, Collaboration, Innovation and Productivity, which I was fortunate to attend, served its purpose well. Let me share the 10 Key Trends that every business executive and innovator should be paying attention to:

1) Personal Robotics is poised to explode soon (predicted by Paul Saffo). It usually takes 20 years science basic science exists until applications reach inflection point and take the world by storm-and we are about to see that happen. Some indicators: DARPA sponsored first robotics attempts in mid-80s, and now we have applications such as the Roomba vacuum-cleaner, and a fully automated racing car. Prof. Kenneth Salisbury showed how there are robots today with great motor skills-i.e., they can unload a dishwasher!

2) Brain Computer Interfaces. Prof. Krishna Shenoy explained how, for many people who can’t move/ communicate well, new systems enable the translation of brain signals into control signals, by implanting electrodes in brain that measure signals and help predict behaviors based on response pattern recognition There are already applications today that help people move cursors based on their thoughts.

3) Clean Technology: Scott Z. Burns, co-producer of An Inconvenient Truth, explained how Al Gore was reluctant to make the movie, but he was convinced to participate given the increasing threat of global warming. Al Gore saw an analogy between the movie and a bio-feedback device that her daughter used to treat her migraines. In biofeedback, one learns how to manage vital body variables in order to reach a goal (preventing migraines, managing stress…). Similarly, Gore wanted each viewer to find his or her own “levers” or “muscles” and ways to act -not just be told what to do.

4) Reinventing Aging: Prof. Laura L. Carstensen, of the Stanford Center on Longevity, explained how Technology & Science has been improving Biology for the last 150 years, and now we need to focus on how to help people remain physically fit and mentally sharp as we age. We need to redefine “aging”. Nowadays, there are many role models in their 70s and 80s that show how age is not an obstacle for being active contributors in society.

5) Virtual Simulations for medical education. Dr. LeRoy Heinrichs showed how simulations work very well to train surgeons and other medical professionals learn how to perform their jobs. Virtual simulations (in a simulated virtual environment) can work as well as physical ones (which typically are more expensive and less scalable).

6) Green Building and Green Cars. Prof. Gilbert M. Masters recommended reading the article “It’s the Architecture, Stupid!” to understand how buildings account for 35-45% carbon emissions in the US, more than transportation and industry.

7) Friends not Email: Prof. B.J. Fogg claimed that email “cheapens our lives” and insisted that maintaining close relationships is critical for happiness. Email is a very bad tool to manage close relationships. Wise words.

Science Videos: Prof. Roy D. Pea made the case that there is an increasing need for DIY videos in protocol sharing among scientists, so they can better replicate experiments. His Lab is creating new ways to enable people create conversations about video to enhance diversity of views and connections.

9) Games for Learning: Prof. Dan Schwartz showcased new methods for learning outside the classroom. Games can help merge formal & informal learning. Teachable agents are computer programs created by students to make their knowledge explicit, and can be used as part of games to motivate students do their homework.

10) 3D Scientific Imaging. Prof. Paul Brown displayed some of the new imaging and software packages that allow doctors navigate virtually into the bodies of patients, in a non-invasive way The images are simply spectacular. They used these technologies to see in detail the interiors of an Egyptian mummy.

Which of these trends is more relevant to your business? What can you do to start preparing for the future, today?