Questão 769770

Last Air Force POW officially retires

Lt. Col. Rob Sweet, lhe Air Force's last-serving prisoner of war, retired June 6 alter 33 years of service. On Feb. 15, 1991, Sweet and his flight commander, Capt. Stephen R. Phillis, crossed the northern border of Kuwait, further into lraq than any A-10 pilot had gane before. Their mission was to eliminate lraqi Republican Guard tanks about 80 miles past lhe border of Kuwait. As Sweet moved in to attack it, he felt a bump. Looking back, he saw lhe rear end of his right wing in flames.

In an interview, Sweet said his first thought was "oh, man, l'm hit" before racing to the border. lt was too late. Within minutes, he was forced to eject and landed 50 feet from the sarne tanks that shot him down.

After crashing, 200 lraqi sofdiers ran towards him and took him captive. For 19 days, Sweet experienced brutality as a prisoner of war. Despite his suffering, Sweet endureci. He credits his military training, specifically his Survival, Evasion, Resistance, and Escape (SERE) school, with his survival. "There were very few surprises in lhe jailhouse," he said. "I knew what to expect."

Lt. Col. Rob Sweet found a sense of purpose in mentoring and instructing young airman, particularly fighter pilots. The Chief of Staff of the Air Force, Gen. Charfes Q. Brown, commended Sweet during his retirement ceremony. "Rob, f want to take this opportunity to recognize your service to our nation and congratulate you on your retirement," said Brown. "You've had an outstanding career that I know you, your family, friends and fellow Airmen are proud of. ln closing, thank you for ali you've dane."

Sweet's advice to young airmen is to take every experience day by day. "Bloom where you're planted," Sweet said. "You're going to have assignments you don't like, but make lhe most of them and move on."

(Adapted from https://www.militarytimes.com)

Choose lhe correct option to complete lhe text below.

A blockchain oracle is a device or entity that ____ a deterministic blockchain with off-chain data (data outside of lhe network). Blockchain oracles are essentially third-party services that provide smart contracts with externai information.

Blockchain oracles ____ as a bridge between blockchains and the outside world. They ____ it possible for smart contracts on blockchains to access off­ chain data.

Due to contractual agreements and other methods of key information needed by blockchain applications, it is often imperative to have relevant information from lhe outside world present to execute lhe agreement in question. This is lhe point where blockchain oracles ____ play.

(Adapted from http://makeuseof.com)