Questões de Concurso
Sobre interpretação de texto | reading comprehension em inglês
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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.
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.
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 intelligence chiefs appeared against a backdrop of angry accusations by European allies that the United States spies on their leaders and citizens, accusations prompted by highly classified documents that Snowden leaked to media organizations.
Army General Keith Alexander, testifying with other U.S. spy chiefs before the House of Representatives Intelligence committee, sought to defuse a growing controversy over reports of NSA snooping on citizens and leaders of major U.S. allies.
The hearing took place as Congress is weighing new legislative proposals that could limit some of the NSA’s more expansive electronic intelligence collection programs.
More than any previous disclosures from the Snowden documents, the reports of spying on close U.S. allies have forced the White House to promise reforms and even acknowledge that America’s electronic surveillance may have gone too far.
Internet: (adapted).
Judge the following items according to the text above.
The intelligence chiefs appeared against a backdrop of angry accusations by European allies that the United States spies on their leaders and citizens, accusations prompted by highly classified documents that Snowden leaked to media organizations.
Army General Keith Alexander, testifying with other U.S. spy chiefs before the House of Representatives Intelligence committee, sought to defuse a growing controversy over reports of NSA snooping on citizens and leaders of major U.S. allies.
The hearing took place as Congress is weighing new legislative proposals that could limit some of the NSA’s more expansive electronic intelligence collection programs.
More than any previous disclosures from the Snowden documents, the reports of spying on close U.S. allies have forced the White House to promise reforms and even acknowledge that America’s electronic surveillance may have gone too far.
Internet: (adapted).
Judge the following items according to the text above.
No such luck for Charles Charlesworth, who was born on the 14th of March, 1829, in Stafford. At the age of four Charles had a beard and was sexually active.
In the final three years of his life his skin wrinkled, he developed varicose veins, shortness of breath, grey hair, senile dementia and incontinence. Some time in his seventh year he fainted and never gained consciousness.
The coroner returned a verdict of natural causes due to old age.
Hugh Cory. Advanced writing with english in use. Oxford University Press, p. 34.
According to the text above,
De acordo com o texto,
Segundo o texto,
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)
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)
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)
Is computer shopping the way of the future? About 37% of American households now have personal computers. And shopping by computer (or “shopping on-line") is interesting to more people every day. Already, shoppers can use their computers to order many different products, such as computer products, flowers, food, T-shirts, and posters. And new on-line shopping services appear every day. Soon people may be able to shop for anything, anytime, anywhere in the world.
(Richards, Jack C. New Interchange 1. Cambridge University Press, 2000)
Which of the products can be acquired by computer, according to the text?
Is computer shopping the way of the future? About 37% of American households now have personal computers. And shopping by computer (or “shopping on-line") is interesting to more people every day. Already, shoppers can use their computers to order many different products, such as computer products, flowers, food, T-shirts, and posters. And new on-line shopping services appear every day. Soon people may be able to shop for anything, anytime, anywhere in the world.
(Richards, Jack C. New Interchange 1. Cambridge University Press, 2000)
It is correct about the text that.