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Q379783 Inglês
Text 1: Software That Fixes Itself

A professor of computer science at the Massachusetts Institute of Technology (MIT) has claimed to have developed software that can find and fix certain types of software bugs within a matter of minutes. Normally when a potentially harmful vulnerability is discovered in a piece of software, it usually takes nearly a month on average for human engineers to come up with a fix and to push the fix out to affected systems. The professor, however, hopes that the new software, called Fixer, will speed this process up, making software significantly more resilient against failure or attack.

Fixer works without assistance from humans and without access to a program’s underlying source code. Instead, the system monitors the behavior of a binary. By observing a program’s normal behavior and assigning a set of rules, Fixer detects certain types of errors, particularly those caused when an attacker injects malicious input into a program. When something goes wrong, Fixer throws up the anomaly and identifies the rules that have been violated. It then comes up with several potential patches designed to push the software into following the violated rules. (The patches are applied directly to the binary, bypassing the source code.) Fixer analyzes these possibilities to decide which are most likely to work, then installs the top candidates and tests their effectiveness. If additional rules are violated, or if a patch causes the system to crash, Fixer rejects it and tries another.

Fixer is particularly effective when installed on a group of machines running the same software. In that case, what Fixer learns from errors on one machine, is used to fix all the others. Because it doesn’t require access to source code, Fixer could be used to fix programs without requiring the cooperation of the company that made the software, or to repair programs that are no longer being maintained.

But Fixer’s approach could result in some hiccups for the user. For example, if a Web browser had a bug that made it unable to handle URLs past a certain length, Fixer’s patch might protect the system by clipping off the ends of URLs that were too long. By preventing the program from failing, it would also put a check on it working full throttle.

The word ‘resilient’ in “making software significantly more resilient against failure or attack” (Paragraph 1) could best be replaced by :
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Q375263 Inglês
In the sentence of the text: “However, if you want people to continue using the app, and use it frequently and often, then you have to do more than just present lessons in the app” (lines 17-19), the connector However can be replaced, without any change in meaning, by
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Q368773 Inglês
House Approves Higher Debt Limit Without Condition
By JONATHAN WEISMAN and ASHLEY PARKER
Feb. 11, 2014

WASHINGTON - Ending three years of brinkmanship in which the threat of a devastating default on the nation’s debt was used to wring conservative concessions from President Obama, the House on Tuesday voted to raise the government’s borrowing limit until March 2015, without any conditions.
The vote - 221 to 201 - relied almost entirely on Democrats in the Republican-controlled House to carry the measure and represented the first debt ceiling increase since 2009 that was not attached to other legislation. Only 28 Republicans voted yes, and only two Democrats voted no.
Simply by holding the vote, Speaker John A. Boehner of Ohio effectively ended a three-year Tea Party-inspired era of budget showdowns that had raised the threat of default and government shutdowns, rattled economic confidence and brought serious scrutiny from other nations questioning Washington’s ability to govern. In the process, though, Mr. Boehner also set off a series of reprisals from fellow Republican congressmen and outside groups that showcased the party’s deep internal divisions.
During the October 2013 government shutdown, The Times’s David Leonhardt explained the debt limit and how a failure to raise it could have affected the economy both at home and abroad.
"He gave the president exactly what he wanted, which is exactly what the Republican Party said we did not want,” said a Republican representative, Tim Huelskamp of Kansas, who last year unsuccessfully tried to rally enough support to derail Mr. Boehner’s re-election as speaker. “It’s going to really demoralize the base.”
The vote was a victory for President Obama, Democrats and those Senate Republicans who have argued that spending money for previously incurred obligations was essential for the financial standing of the federal government. “Tonight’s vote is a positive step in moving away from the political brinkmanship that’s a needless drag on our economy,” Jay Carney, the White House press secretary, said in a statement.
"A clean debt ceiling is a complete capitulation on the speaker’s part and demonstrates that he has lost the ability to lead the House of Representatives, let alone his own party,” said Jenny Beth Martin, co-founder of the Tea Party Patriots. “It is time for him to go.”
Senator Harry Reid of Nevada, the majority leader, commended the speaker and promised to pass the bill as soon as possible. “We’re happy to see the House is legislating the way they should have legislated for a long time,” he said.



(Adapted from http://www.nytimes.com/2014/02/12/us/politics/ boehner-to-bring-debt-ceiling-to-vote-without-policy- attachments. html?nl=todaysheadlines&emc=edit_th_2014021 2&_r=0)


As used in the text, and without any change in meaning, though could be replaced by
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Q365997 Inglês
In the expression “…rather than the party…” (line 18), “rather than” can be substituted by one of the items bellow, with no change in meaning. Choose the correct alternative.
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Ano: 2010 Banca: FGV Órgão: CODESP-SP Prova: FGV - 2010 - CODESP-SP - Guarda Portuário |
Q363354 Inglês
According to lines 3 to 7, the so-called Irish Navy boats were.
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Respostas
856: C
857: D
858: A
859: E
860: B