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Sun Certified MySQL 5.0 Database Administrator Part II
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Killexams : SUN Administrator test - BingNews Search results Killexams : SUN Administrator test - BingNews Killexams : The supply of COVID antivirals is increasing, but many patients aren’t using them cannot provide a good user experience to your browser. To use this site and continue to benefit from our journalism and site features, please upgrade to the latest version of Chrome, Edge, Firefox or Safari.

Fri, 09 Dec 2022 01:46:00 -0600 en-US text/html
Killexams : Gulfport-Biloxi International Airport testing facial recognition technology at TSA checkpoints

Dec. 9—The next time you visit the airport, your security checkpoint experience might be a bit different.

The Gulfport-Biloxi International Airport (GPT) is one of 16 airports around the United States testing facial recognition software as a part of identity verification at TSA checkpoints.

"The Transportation Security Administration is always implementing new innovative technologies and methods to enhance the safety of the flying public," said Clay Williams, the airport's director. "At Gulfport-Biloxi International Airport, we are pleased to often be one of the first smaller airports considered when implementing the new passenger safety enhancement measures."

The technology, called Credential Authentication Technology with Camera (CAT-2) — which was implemented at the airport earlier this year — takes a photo of you and compares it with the photo on your license or passport to verify your identity. It then cross references it with the TSA's Secure Flight program, which verifies that you are cleared to fly, according to TSA Spokesperson Sari Koshetz.

Before the use of this technology, individual TSA agents had to compare travelers to their IDs. With this new technology, TSA agents will still be on hand to make the final call, but according to the TSA, the technology will help reduce contact between TSA officers and passengers, as well as Excellerate the effectiveness of security and make security checkpoints more efficient.

"TSA is exploring facial identification to automate identity verification at airport checkpoints and modernize the screening experience for passengers," TSA Spokesperson Sari Koshetz said in an email. "Biometric technology has the potential to enhance security effectiveness, Excellerate operational efficiency, and yield a more streamlined passenger experience at what is known as the TDC or Travel Document Checker point before you enter the federal security checkpoint."

Currently the technology is optional, and limited to certain airports. Passengers who chose not to have their face scanned can notify a TSA agent to have their identity and boarding pass checked the standard way.

While the TSA said they currently don't know if or when the pilot program of this technology will expand, a report from the Washington Post says the technology could be expanded to more U.S. airports in 2023.

Some travelers have expressed concerns over privacy issues and bias in the use of technologies that collect biometric information, such as facial recognition software.

According to the TSA, the photos collected on the system are deleted everyday and cannot be taken off the system. As far as accuracy in identifying travelers, the TSA says it can accurately identify people even if they've made minor or drastic changes in their appearance since their driver's license or passport photo was taken.

At this point, the TSA has not released any data about the use of its facial recognition software, but they "continue to monitor these pilots to ensure there is no inherent bias in the technology."

This is not the first time Gulfport has been utilized by the TSA to test new security features, Williams said.

The Jackson-Medgar Wiley Evers International Airport in Jackson was also selected to test this technology. For a full list of all the U.S. airports using this technology, click here.

(c)2022 The Sun Herald (Biloxi, Miss.) Distributed by Tribune Content Agency, LLC.

Thu, 08 Dec 2022 22:36:00 -0600 en-US text/html
Killexams : NASA Will Test a High Stakes Re-Entry Maneuver With Artemis 1 on Sunday The Orion spacecraft used an exterior camera to take this selfie, with the Earth and the moon in the background © NASA The Orion spacecraft used an exterior camera to take this selfie, with the Earth and the moon in the background

The crew of Apollo 8 had a lot of things on their minds when they splashed down in the Pacific Ocean on Dec. 27, 1968, after becoming the first humans to orbit the moon—and one of the biggest was the matter of the sharks. The spacecraft hit the water at 4:51 a.m. Hawaiian-Aleutian time, more than an hour before the Pacific sunrise. A recovery crew of Navy frogmen was standing by on the nearby USS Yorktown, but they dared not jump into the water until day broke—and the astronauts dared not exit their spacecraft—because sharks prowl in the predawn darkness. Only when the sun came up would it be safe to attempt a recovery.

Landing in a daylit part of the world would have clearly been preferable, but back in the Apollo era, returning lunar astronauts could not be so choosy. Once they hit the atmosphere they were essentially in free-fall, flying at a steep angle and eventually splashing down 2,776 km (1,725 mi.) from their point of atmospheric entry. If that happened to be in dark, shark-infested waters, well, that was the price you paid for going to the moon.

Things are different today. When Artemis 1’s Orion spacecraft returns to Earth this Sunday, Dec. 11, after its 25-day lunar orbital mission, it will execute a never-before-tried means of reentry that will allow its guidance system to land it anywhere—and at any time—mission planners choose within an 8,890 km (5,524 mi) range. Want to land in daylight? Done. Want to land just 80 km (50 mi.) off the coast of San Diego at precisely 12:40 p.m. Eastern Time, as is currently planned? Not a problem. That, of course, is provided that that never-before-tried maneuver works as intended—and that is a worry that is surely causing some NASA personnel a few sleepless nights.

Read more: Inside NASA’s Struggle to Launch America Back to the Moon

Reentering the atmosphere from Earth orbit is a relatively easy thing: a matter of firing retro-rockets and slowing the spacecraft’s velocity below the 28,160 km/h (17,500 mph) speed necessary to maintain orbit. After that, the ship basically falls from the sky.

Returning from the moon is a different matter. In order to reenter the atmosphere safely, the ship must aim for a keyhole in the sky just 24 km (15 mi.) wide. That sounds like a mighty big target, but if the Earth was the size of a basketball and the moon the size of a baseball, and the two were placed 6.7 m (22 ft.) apart—the relative translunar distance at that scale—the reentry target would be no thicker than a piece of paper. Miss it and enter too steeply, and the spacecraft would not survive the heat of reentry; miss it and enter too shallowly and the spacecraft would simply skip off the atmosphere and bounce back into space.

Even a bullseye hit on that tiny target—which all nine Apollo lunar crews pulled off—did not make for a pleasant ride. The astronauts had to endure forces of 6.8 g’s (or 6.8 times Earth’s gravity) on the way down before their speed slowed, their parachutes opened, and they hit the water.

Artemis 1’s return will Excellerate on things by attempting what flight engineers call a “skip entry.” When the Orion capsule enters the 24 km-wide keyhole in the atmosphere it will be traveling at a speed of more than 32,000 km/hr (20,000 mph). The atmospheric friction from entering so fast will cause the temperature on its heat shield to rise throughout the descent process to a peak of 2,760º C (5,000º F).

Read more: NASA’s Mega-Moon Rocket Finally Blasts Off, Heralding America’s Lunar Return

The uncrewed spacecraft will initially plunge to an altitude of 61,000 m (200,000 ft.)—or about 61 km (38 mi.). Then it will pull off a fancy bit of flying. Rolling 180 degrees—so that future astronauts who were sitting straight up inside would now be upside down—it will change its center of gravity, causing it to skip off the atmosphere, just as it would on a too-shallow reentry, but not so hard and fast that it would fly off into space. Instead, it will climb back up to 99,000 m (325,000 ft)—or 99 km (61 mi)—essentially taking it back into space. After that parabolic maneuver, it will resume its descent, with its guidance system pointing it straight for the waters off of San Diego.

The skip entry not only increases the spacecraft’s reentry footprint, it also reduces the temperature load on the heat shield, as the ship briefly roller coasters back into the chill of space. What’s more, astronauts on board would have an easier ride: dividing the reentry into two parts this way reduces the maximum g-forces from 6.8 to just 4.

The skip entry concept was around in the days of Apollo—and the physics certainly aren’t any different now from what they were then. But the power of the guidance computer aboard the spacecraft—not to mention the computer modeling that has allowed the maneuver to be run and rerun on the ground first—did not exist at the time, making the maneuver too risky a trick to try. This Sunday—54 years after the return of Apollo 8—the entry maneuver will at last be attempted. If all goes well, the next time it’s tried will be in 2024, when Artemis 2 carries a crew of astronauts around the moon—bringing them back to Earth for a smooth and close-to-home splashdown.

Wed, 07 Dec 2022 22:00:52 -0600 en-US text/html
Killexams : Students Navigate Stress, test Preparation as Finals Period Approaches

As the fall semester comes to a close, students are preparing for the upcoming finals period, facing stress and navigating study resources for the exam-filled week.

With classes ending on Dec. 5, the three-day study period allows students to dedicate their time to studying and working on final projects, without the obligation of classes. Finals will begin on Dec. 9 and end on Dec. 17.

Students largely expressed feeling overwhelmed about their upcoming final exams, saying that they feel they have little time to prepare before the finals period begins.