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.
What compromises mainly preventative measures?

ANS: computer security

QUES: Macao: The event was held in Macau on May 3. It was the first time that the Olympic torch had traveled to Macau. A ceremony was held at Macau Fisherman's Wharf. Afterward, the torch traveled through Macau, passing by a number of landmarks including A-Ma Temple, Macau Tower, Ponte Governador Nobre de Carvalho, Ponte de Sai Van, Macau Cultural Centre, Macau Stadium and then back to the Fisherman's Wharf for the closing ceremony. Parts of the route near Ruins of St. Paul's and Taipa was shortened due to large crowds of supporters blocking narrow streets. A total of 120 torchbearers participated in this event including casino tycoon Stanley Ho. Leong Hong Man and Leong Heng Teng were the first and last torchbearer in the relay respectively. An article published on Macao Daily News criticized that the list of the torchbearers could not fully represent the Macanese and that there were too many non-athletes among the torchbearers. (some of whom had already been torchbearers of other sporting events)
Who was the first torchbearer in Macao?

ANS: Leong Hong Man

QUES: On 8 June 1856, the next settlement began on Norfolk Island. These were the descendants of Tahitians and the HMS Bounty mutineers, including those of Fletcher Christian. They resettled from the Pitcairn Islands, which had become too small for their growing population. On 3 May 1856, 193 persons left Pitcairn Islands aboard the "Morayshire". On 8 June 194 persons arrived, a baby having been born in transit. The Pitcairners occupied many of the buildings remaining from the penal settlements, and gradually established traditional farming and whaling industries on the island. Although some families decided to return to Pitcairn in 1858 and 1863, the island's population continued to grow. They accepted additional settlers, who often arrived with whaling fleets.
Where did the next settlement of people on Norfolk Island bomb?

ANS: unanswerable

QUES: The term Muslim world, also known as Islamic world and the Ummah (Arabic: , meaning "nation" or "community") has different meanings. In a religious sense, the Islamic Ummah refers to those who adhere to the teachings of Islam, referred to as Muslims. In a cultural sense, the Muslim Ummah refers to Islamic civilization, exclusive of non-Muslims living in that civilization. In a modern geopolitical sense, the term "Islamic Nation" usually refers collectively to Muslim-majority countries, states, districts, or towns.
When speaking of religion, what does Ummah refer to?

ANS:
those who adhere to the teachings of Islam