Problem: A USB packet's end, called EOP (end-of-packet), is indicated by the transmitter driving 2 bit times of SE0 (D+ and D both below max.) and 1 bit time of J state. After this, the transmitter ceases to drive the D+/D lines and the aforementioned pull up resistors hold it in the J (idle) state. Sometimes skew due to hubs can add as much as one bit time before the SE0 of the end of packet. This extra bit can also result in a "bit stuff violation" if the six bits before it in the CRC are 1s. This bit should be ignored by receiver.
What can skew due to hubs add?
The answer is the following: as much as one bit time before the SE0 of the end of packet

Problem: In 1911 arsphenamine, the first synthetic anti-infective drug, was developed by Paul Ehrlich and chemist Alfred Bertheim of the Institute of Experimental Therapy in Berlin. The drug was given the commercial name Salvarsan. Ehrlich, noting both the general toxicity of arsenic and the selective absorption of certain dyes by bacteria, hypothesized that an arsenic-containing dye with similar selective absorption properties could be used to treat bacterial infections. Arsphenamine was prepared as part of a campaign to synthesize a series of such compounds, and found to exhibit partially selective toxicity. Arsphenamine proved to be the first effective treatment for syphilis, a disease which prior to that time was incurable and led inexorably to severe skin ulceration, neurological damage, and death.[citation needed]
What was the first effective treatment for Syphilis?
The answer is the following: Arsphenamine

Problem: West's first six solo studio albums, all of which have gone platinum, have received numerous awards and critical acclaim. All of his albums have been commercially successful, with Yeezus, his sixth solo album, becoming his fifth consecutive No. 1 album in the U.S. upon release. West has had six songs exceed 3 million in digital sales as of December 2012, with "Gold Digger" selling 3,086,000, "Stronger" selling 4,402,000, "Heartless" selling 3,742,000, "E.T." selling over 4,000,000, "Love Lockdown" selling over 3,000,000, and "Niggas in Paris" selling over 3,000,000, placing him third in overall digital sales of the past decade. He has sold over 30 million digital songs in the United States making him one of the best-selling digital artists of all-time.
How many songs has Kanye sold digitally in his career?
The answer is the following: over 30 million

Problem: In 1919, the frustrations caused by delays to Irish home rule led members of Sinn Fein, a pro-independence party that had won a majority of the Irish seats at Westminster in the 1918 British general election, to establish an Irish assembly in Dublin, at which Irish independence was declared. The Irish Republican Army simultaneously began a guerrilla war against the British administration. The Anglo-Irish War ended in 1921 with a stalemate and the signing of the Anglo-Irish Treaty, creating the Irish Free State, a Dominion within the British Empire, with effective internal independence but still constitutionally linked with the British Crown. Northern Ireland, consisting of six of the 32 Irish counties which had been established as a devolved region under the 1920 Government of Ireland Act, immediately exercised its option under the treaty to retain its existing status within the United Kingdom.
What political party established Ireland's assembly?
The answer is the following:
Sinn Fein