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One use of the term "computer security" refers to technology that is used to implement secure operating systems. In the 1980s the United States Department of Defense (DoD) used the "Orange Book" standards, but the current international standard ISO/IEC 15408, "Common Criteria" defines a number of progressively more stringent Evaluation Assurance Levels. Many common operating systems meet the EAL4 standard of being "Methodically Designed, Tested and Reviewed", but the formal verification required for the highest levels means that they are uncommon. An example of an EAL6 ("Semiformally Verified Design and Tested") system is Integrity-178B, which is used in the Airbus A380 and several military jets.
What is the standard of EAL4?
A: Methodically Designed, Tested and Reviewed

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The provisional results of the 2014 Myanmar Census show that the total population is 51,419,420. This figure includes an estimated 1,206,353 persons in parts of northern Rakhine State, Kachin State and Kayin State who were not counted. People who were out of the country at the time of the census are not included in these figures. There are over 600,000 registered migrant workers from Myanmar in Thailand, and millions more work illegally. Burmese migrant workers account for 80% of Thailand's migrant workers. Population density is 76 per square kilometre (200/sq mi), among the lowest in Southeast Asia.
How many people in Burma are currently using a work visa for Thailand?
A: 600,000 registered migrant workers from Myanmar in Thailand

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Eton College has links with some private schools in India today, maintained from the days of the British Raj, such as The Doon School and Mayo College. Eton College is also a member of the G20 Schools Group, a collection of college preparatory boarding schools from around the world, including Turkey's Robert College, the United States' Phillips Academy and Phillips Exeter Academy, Australia's Scotch College, Melbourne Grammar School and Launceston Church Grammar School, Singapore's Raffles Institution, and Switzerland's International School of Geneva. Eton has recently fostered[when?] a relationship with the Roxbury Latin School, a traditional all-boys private school in Boston, USA. Former Eton headmaster and provost Sir Eric Anderson shares a close friendship with Roxbury Latin Headmaster emeritus F. Washington Jarvis; Anderson has visited Roxbury Latin on numerous occasions, while Jarvis briefly taught theology at Eton after retiring from his headmaster post at Roxbury Latin. The headmasters' close friendship spawned the Hennessy Scholarship, an annual prize established in 2005 and awarded to a graduating RL senior for a year of study at Eton. Hennessy Scholars generally reside in Wotton house.
What is the G20 School's Group?
A: a collection of college preparatory boarding schools from around the world

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The war started badly for the US and UN. North Korean forces struck massively in the summer of 1950 and nearly drove the outnumbered US and ROK defenders into the sea. However the United Nations intervened, naming Douglas MacArthur commander of its forces, and UN-US-ROK forces held a perimeter around Pusan, gaining time for reinforcement. MacArthur, in a bold but risky move, ordered an amphibious invasion well behind the front lines at Inchon, cutting off and routing the North Koreans and quickly crossing the 38th Parallel into North Korea. As UN forces continued to advance toward the Yalu River on the border with Communist China, the Chinese crossed the Yalu River in October and launched a series of surprise attacks that sent the UN forces reeling back across the 38th Parallel. Truman originally wanted a Rollback strategy to unify Korea; after the Chinese successes he settled for a Containment policy to split the country. MacArthur argued for rollback but was fired by President Harry Truman after disputes over the conduct of the war. Peace negotiations dragged on for two years until President Dwight D. Eisenhower threatened China with nuclear weapons; an armistice was quickly reached with the two Koreas remaining divided at the 38th parallel. North and South Korea are still today in a state of war, having never signed a peace treaty, and American forces remain stationed in South Korea as part of American foreign policy.
Chinese troops attacked the UN forces when they crossed what ocean?
A:
unanswerable