#779721 ITA - 1999 - Vestibular (ITA)/Concurso de Admissão 2000

O texto abaixo refere-se ao Y2K (ou "bug do milênio") e a rumores correntes acerca dele. Leia-o e assinale a opção que melhor responde a questão.

Rumor (1): Increased solar activity at the end of 1999 could cause satellite systems to malfunction on or around January 1,2000.

Experts say that the next peak in solar flares or storms on the sun's surface, whice can interfere with normal satellite operations, will occur in late 1999 and early 2000; the last peak occurred in March 1989. It is believed that increased solar activity in May 1998 adversely affeted operations of the Galaxy 4 satellite over the United States, creating a few days of difficulties for pager operators and broadcasting companies.

Rumor (2): Y2K problems in federal prison facilities will cause cell doors and gates to open, increasing the risk of prison escapes.

Controls on doors and gates are always managed by correction officers, and the doors and gates do not operate on timers. Prison doors and gates are opened through human control, when the corrections officer pushes a button. In the event of power failures, the doors and gates default to a closed position.

Rumor (3): Organizations can experience Y2K-related glitches before January 1,2000.

Many businesses and government agencies have al ready reached, or will soon, a phase in their operations where they need to look a head into the Year 2000. These Took-ahead functions might include budget programming for a fiscal year that begins sometime after January 1,1999, or simple tasks such as making hotel or flight reservations. To the extent that the systems supporting such functions are not Y2K compliant, glitches could surface prior to the new millennium.

Rumor (4): Most elevator computers and embedded systems will fail on January 1, 2000. (...) If elevator systems were to experience Year 2000-related failures, all elevators have manual overrides that would enable them to return to operation.

Rumor (5): The Federal Aviation Administration (FAA), certain that the air traffic control system will not be ready at the turn of the century, will ground all flights in the United States at 6 p.m. on December 31, 1999, and not let any take off until 6 a.m. January 1, 2000.

The FAA has no plans to halt air traffic on or around December 31, 1999 ± Jan 1,2000. The FAA is committed to the safety of air transport and, as such, is working hard not only on its own systems, but with the airline industry, to ensure a seamless transition in to the new millennium.

Year 2000 Conversion

http://www.y2k.gov/text/whatsnew.htm

A expressão "look ahead" aparece duas vezes na explicação que segue o rumor 3. No primeiro caso, look ahead exerce a função de I e tem significado semelhante a II e, no segundo caso, look ahead exerce a função de III e tem significado semelhante a IV.