QUES: Today, computer security comprises mainly "preventive" measures, like firewalls or an exit procedure. A firewall can be defined as a way of filtering network data between a host or a network and another network, such as the Internet, and can be implemented as software running on the machine, hooking into the network stack (or, in the case of most UNIX-based operating systems such as Linux, built into the operating system kernel) to provide real time filtering and blocking. Another implementation is a so-called physical firewall which consists of a separate machine filtering network traffic. Firewalls are common amongst machines that are permanently connected to the Internet.
Which system has a built in firewall?

ANS: unanswerable

QUES: The relationships above are valid for only a few percent change of voltage around rated conditions, but they do indicate that a lamp operated at much lower than rated voltage could last for hundreds of times longer than at rated conditions, albeit with greatly reduced light output. The "Centennial Light" is a light bulb that is accepted by the Guinness Book of World Records as having been burning almost continuously at a fire station in Livermore, California, since 1901. However, the bulb emits the equivalent light of a four watt bulb. A similar story can be told of a 40-watt bulb in Texas that has been illuminated since 21 September 1908. It once resided in an opera house where notable celebrities stopped to take in its glow, and was moved to an area museum in 1977.
What started burning in 1801?

ANS: unanswerable

QUES: Dissatisfaction with the conduct of the war was growing with the public in the UK and in other countries, aggravated by reports of fiascos, especially the humiliating defeat of the Charge of the Light Brigade at the Battle of Balaclava. On Sunday, 21 January 1855, a "snowball riot" occurred in Trafalgar Square near St. Martin-in-the-Field in which 1,500 people gathered to protest against the war by pelting buses, cabs, and pedestrians with snow balls. When the police intervened, the snowballs were directed at them. The riot was finally put down by troops and police acting with truncheons. In Parliament, Tories demanded an accounting of all soldiers, cavalry and sailors sent to the Crimea and accurate figures as to the number of casualties that had been sustained by all British armed forces in the Crimea; they were especially concerned with the Battle of Balaclava. When Parliament passed a bill to investigate by the vote of 305 to 148, Aberdeen said he had lost a vote of no confidence and resigned as prime minister on 30 January 1855. The veteran former Foreign Secretary Lord Palmerston became prime minister. Palmerston took a hard line; he wanted to expand the war, foment unrest inside the Russian Empire, and permanently reduce the Russian threat to Europe. Sweden and Prussia were willing to join the UK and France, and Russia was isolated.:400–402, 406–408
What position did Lord Palmerston previously hold before becoming a Prime Minister?

ANS: Foreign Secretary

QUES: Over 600,000 students are enrolled in New York City's over 120 higher education institutions, the highest number of any city in the United States, including over half million in the City University of New York (CUNY) system alone in 2014. In 2005, three out of five Manhattan residents were college graduates, and one out of four had a postgraduate degree, forming one of the highest concentrations of highly educated people in any American city. New York City is home to such notable private universities as Barnard College, Columbia University, Cooper Union, Fordham University, New York University, New York Institute of Technology, Pace University, and Yeshiva University. The public CUNY system is one of the largest universities in the nation, comprising 24 institutions across all five boroughs: senior colleges, community colleges, and other graduate/professional schools. The public State University of New York (SUNY) system also serves New York City, as well as the rest of the state. The city also has other smaller private colleges and universities, including many religious and special-purpose institutions, such as St. John's University, The Juilliard School, Manhattan College, The College of Mount Saint Vincent, The New School, Pratt Institute, The School of Visual Arts, The King's College, and Wagner College.
How many students in New York partcipate in higher education?

ANS:
600,000