Exam 70-270 Microsoft’s MCDST Windows XP Examination Guidelines

Exam 70-270 is one of the Microsoft certification examinations and the name of the examination is Windows XP Professional. This certification is designed for the candidates who wish to gain knowledge and skills in the ability to solve the end user incident request by troubleshooting as well as configuring windows XP operating system. This examination is one of the examinations for certifying MCDST certification. Exam 70-271 is the other examination for certifying with MCDST.

Prerequisites for this examination:
For writing this exam, there are no specific prerequisites required for the candidates but it is recommended to have some basic knowledge about the Windows XP operating system like Windows XP home edition, XP professionals that include with Microsoft office tools as well as Microsoft outlook express.

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How to practice for the exam?
Candidates can practice for this exam by reading the following sections and they are:

1) Installation process of windows XP professionals on your computer
2) Configuration of internet connection firewall components (ICF)
3) Configuration as well as testing several TCP/ IP by using commands such as PATCHPING, PING and TRACERT.

Exam objectives:
The following are the examination objectives of 70-270 and free Microsoft questions they are:

1) Configuring application security
2) Solving issues that is related with usability
3) Troubleshooting as well as configuring applications
4) Solving issues related with customizing applications
5) Troubleshooting as well as configuration connectivity for the applications.

Job roles and other details of the exam:
After successful completion of this examination, candidates can get several job opportunities for several positions in the top companies. Some of the job roles include: PC support specialists, technical support specialists, customer support representatives etc. The exam comprises of 50 multiple choices, drag-drop, built a tree, reorder type questions. Time duration is approximately 90 minutes and the minimum score to pass in this examination is 700 out of 1000 (70%).

How to Buy the Right Headphones

These days, some people happily spend more than half a grand on a new tablet or portable media device with an estimated lifespan of around three years, yet the question I’m asked most often is still, “What’s the cheapest pair of headphones I can buy that don’t completely suck?” Headphones, earbuds, and earphones (I’ll describe the difference between them in a bit) are generally viewed as the least essential link in the musical chain—the part you can easily skimp on. In reality, your headphones are the most important link in that chain: A quality pair has a larger impact than the player itself on how your tunes will sound. Also, if well cared for, they will long outlive your planned-to-be-obsolete tablet, phone, or MP3 player. And you don’t have to break the bank, either. For as little as $40, you can get a high-quality pair of headphones and really begin to enjoy all the sweet-sounding audio you’ve been missing.

Thanks to the wild popularity of iPods and iPhones, those trademark white Apple earbuds have become ubiquitous. Even so, earbuds are not an ideal listening option, since they don’t enter your ear canal and as a result don’t create a true seal. Thus, they’re more likely to be placed at an odd angle, often destroying the balance of the audio mix—and you can forget about getting solid bass response. Earphones, on the other hand, sit further in your ear canal, creating an actual seal—and they’re often more comfortable to wear, since they tend to stay in place better than earbuds. Headphones, by contrast, are over-the-head (or behind-the-head) speakers that don’t enter your ear canals at all. Circumaural models create a seal with cups that surround your entire ear, whereas open, or supra-aural headphones sit directly on your ears without forming a seal.

Now let’s take a look at how to find better alternatives to those lousy stock-issue earbuds. Since earphones have won the popularity war over other styles, we’ll start with them, but we’ll also explore headphones, including noise-canceling and wireless options.


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Earphones
As explained above, earbuds aren’t the best way to get the most from your music. If you’re looking for booming bass on a budget, reasonable quality starts to emerge in the $40-50 range. They don’t deliver the most accurate sonic experience, but some feature deep, resonant low end—perfect for hip-hop and electronic music—which is a recent development in affordable earphones. Generally speaking, you won’t find true audio quality in earphones until you pass the $50 mark. In the $50 to $150 price range, you can expect earphones that fit well, deliver powerful bass and crisp treble, and come with a variety of ear tips in different sizes to ensure a good seal. Ultimate Ears, Sennheiser, and Shure, are consistently strong players in this category, but we’ve recently seen promising affordable earphones from other competitors, like the $120 iBeats by Dr. Dre from Monster and the $100 Bose IE2.

If you’re more about accuracy than booming bass, you’ll want “flat-response” pairs that offer a more pure, less sculpted audio signal. The Etymotic ER-4S ($300) is our flat-response earphone benchmark, and you’ll find it in many of our HEAD Acoustics graphs as a comparison pair. In this same price range, you should expect well-matched left and right earphones, as well as better definition on the lowest and highest frequencies. Etymotic makes the flattest pair in this range, but there are plenty of options that offer more low-end without boosting too much.

Earphones can be far more expensive than a couple hundred dollars, however—the JH Audio JH16 Pro will cost you $1,150. They’re a custom-molded pair with subwoofers added in each ear for more accurate deep bass response. These are unbelievable sounding earphones (at that price, they’d better be!) and they do a great job of passively eliminating ambient noise around you, as well.

Headphones
When it comes to consumer headphones, two companies in particular, Grado and Sennheiser, truly stand out from the crowd. Grado makes mostly supra-aural headphones that range from $70-$1,000. The Grado GS1000 pair, with its mix of supra-aural and circumaural design, delivers audio that sounds about as good as it possibly can. Even so, at $995 the GS1000 isn’t for everyone: They’re not very portable, and you can’t ignore the wooden earpieces. (I actually think they look pretty cool, and luckily, Grado has more affordable options, like the sub-$100 SR60.) Generally, headphones should be able to reproduce richer low end since they have larger drivers than earphones and they don’t rely on an in-ear seal to deliver sound. The $200 Denon AH-D1100 was released last year as an update to a similarly named, critically adored headphone pair. If you seek flat response with a bit of added bass response, but not too much, it’s a great pair to consider; they’ll feed your hunger for deep bass and work nicely on the quieter songs as well.

Noise-Canceling Headphones
You might try to dismiss the din of the outside world by cranking up the volume, but the best solution for saving your sanity and your ears is to invest in a pair of noise-canceling headphones, so you can enjoy your audio at much lower volumes. The Bose QuietComfort 15, our Editors’ Choice, offer fantastic noise cancellation, and they sound pretty good—but they will set you back about $300. Meanwhile, Phiaton recently released an excellent in-ear noise canceling pair, the Phiaton PS 20 NC; at half the price as the Quiet Comfort 15, they’re a steal. It’s also important to note: noise-canceling headphones are generally not for audiophiles—they typically put noise cancellation before sound quality and tend to sound less compelling than similarly priced headphones without the noise-cancellation circuitry. Plus, several in-ear earphones offer substantial passive noise reduction by basically functioning as earplugs.

Wireless Headphones
There’s no disputing that wireless headphones can be convenient in any situation where you don’t want to deal with dangling cables—like the gym, for example. Unfortunately, Bluetooth wireless stereo audio doesn’t measure up when compared with the tried-and-true wired kind. This is because the data signal containing Bluetooth audio is extremely compressed and therefore can’t carry enough information to deliver rich sound. But if you can’t stand cords, check out wireless pairs like the Motorola S10-HD that double as headsets to let you answer cell phone calls. For higher-quality wireless sound, Kleer’s excellent RF-based wireless technology has made its way into a smattering of headphones and earphones, primarily from Sennheiser. At CES, Sennheiser announced more Kleer-equipped pairs are on the way.
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Before you settle on your perfect pair, check out the latest reviews in the Headphones Product Guide. And for more information on how we evaluate earphones and headphones, visit the How We Test page.

Dell Streak 7 (T-Mobile)

As we await Google’s Honeycomb operating system to properly usher in the Android tablet era, new tablets—with earlier, less tablet-friendly versions of Android—continue to appear. The Dell Streak 7 ($199.99 with a 2-year T-Mobile contract) runs a re-skinned version of Android 2.2, and its 7-inch capacitive multi-touch-enabled screen makes it a direct competitor of the Samsung Galaxy Tab ($399.99, 3.5 stars). Despite the Streak 7 being a 4G tablet and the first with the speedy Nvidia Tegra 2 processor, it suffers from some serious shortcomings. Download and upload speed tests netted results more fitting for a 3G device. The photo and video viewing experience is weak, and video chatting is abysmal. Honeycomb may be on the horizon, but in the meantime, Android lacks a viable competitor to the top-notch Apple iPad ($499-$829, 4 stars).

Before we get to the good stuff, here’s what the Streak 7 will cost you: T-Mobile offers two different payment plans. The Overage Free Plan gives you 5GB of data per month; T-Mobile reduces data speeds and throughput once you exceed your 5MB monthly allotment. For new customers, the overage plan is $49.99 per month, and existing T-Mobilers get it for $39.99.

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The 200MB Data Plan charges you 10 cents per every MB over 200MB you use. This plan is $29.99 monthly for new customers and $24.99 for current T-Mobile customers. There are also three pre-paid plans: $10 (100MB, one week pass), $30 (300MB for one month), and $50 (1GB for a month pass).

All of these plans, of course, are on top of the $199.99 cost of the tablet itself.
Specifications

Operating System =     Google Android 2.3 or earlier
Service Provider =    T-Mobile
Screen Size =     7 inches
Storage Capacity (as Tested) =     16 GB
Dimensions =     4.7 x 7.9 x 0.5 inches
Networking Options =     802.11b, 802.11g, 802.11n, 4G

Design
The Streak 7 looks like most of its Android brethren, with a 7-inch, 800-by-480 display framed by a glossy black plastic case. A 1.3-megapixel front-facing camera sits above the screen when the tablet is horizontal, and Backward, Settings, and Home touch-sensitive controls are situated along the right-edge of the display. There’s a 30-pin connector on the bottom panel—the 30 pin-to-USB cable is included, and the USB end also plugs into the power adapter that ships with the Streak 7 for charging. Internal stereo speakers are embedded in the left- and right-hand panels, along with a 3.5-mm headphone jack (earbuds are included, unlike with the Apple iPad) and a snap-shut compartment that houses the SIM card and SD card slot for memory expansion (up to 32 additional GB) to supplement the 16GB of internal storage. Up top, there’s a Power button and Volume controls, and on the back panel, above the Dell and T-Mobile logos, the rear-facing 5-megapixel camera and LED flash.

Internally, the Streak 7 makes waves where no other tablet has: it features the first Nvidia Tegra 2—a system-on-a-chip with the first mobile dual core CPU. While we expect to see the Tegra 2 in many tablets in the coming year, this is a big deal—and we ran speed benchmark tests on the Streak 7 to show you just how big a deal it is. More on this later in the review, but suffice to say: It’s the fastest tablet we’ve tested. That said, with several Tegra 2 tablets on the way, the Streak 7’s about to have plenty of speedy competition.