QUES: Videophone calls (also: videocalls, video chat as well as Skype and Skyping in verb form), differ from videoconferencing in that they expect to serve individuals, not groups. However that distinction has become increasingly blurred with technology improvements such as increased bandwidth and sophisticated software clients that can allow for multiple parties on a call. In general everyday usage the term videoconferencing is now frequently used instead of videocall for point-to-point calls between two units. Both videophone calls and videoconferencing are also now commonly referred to as a video link.
What term is more used today to refer to calls between two units?

ANS: videoconferencing

QUES: The developments during World War II continued for a short time into the post-war period as well. In particular the U.S. Army set up a huge air defence network around its larger cities based on radar-guided 90 mm and 120 mm guns. US efforts continued into the 1950s with the 75 mm Skysweeper system, an almost fully automated system including the radar, computers, power, and auto-loading gun on a single powered platform. The Skysweeper replaced all smaller guns then in use in the Army, notably the 40 mm Bofors. In Europe NATO's Allied Command Europe developed an integrated air defence system, NATO Air Defence Ground Environment (NADGE), that later became the NATO Integrated Air Defence System.
What US system was created in the 1950s that included radar and computers?

ANS: the 75 mm Skysweeper system

QUES: In 633 AD, Rashidun Arabs invaded Iran and conquered it by 651 AD, largely converting Iranian people from their indigenous faiths of Manichaeism and Zoroastrianism to Sunni Islam. Arabic replaced Persian as the official language, while Persian remained the language of both ordinary people and of literature. Iran became a major contributor to the Islamic Golden Age, producing many influential scientists, scholars, artists, and thinkers. Establishment of the Safavid Dynasty in 1501, converted the Iranian people from Sunni Islam to Twelver Shia Islam, and made Twelver Shia Islam the official religion of Iran. Safavid conversion of Iran from Sunnism to Shiism marked one of the most important turning points in Iranian and Muslim history. Starting in 1736 under Nader Shah, Iran reached its greatest territorial extent since the Sassanid Empire, briefly possessing what was arguably the most powerful empire at the time. During the 19th century, Iran irrevocably lost swaths of its territories in the Caucasus which made part of the concept of Iran for centuries, to neighboring Imperial Russia. Popular unrest culminated in the Persian Constitutional Revolution of 1906, which established a constitutional monarchy and the country's first Majles (parliament). Following a coup d'état instigated by the U.K. and the U.S. in 1953, Iran gradually became close allies with the United States and the rest of the West, remained secular, but grew increasingly autocratic. Growing dissent against foreign influence and political repression culminated in the 1979 Revolution, which led to the establishment of an Islamic republic on 1 April 1979.
What religion did the Rashidun Arabs convert the indigenous conquered peoples to? 

ANS: Sunni Islam

QUES: The city is represented in the National Football League by the New York Giants and the New York Jets, although both teams play their home games at MetLife Stadium in nearby East Rutherford, New Jersey, which hosted Super Bowl XLVIII in 2014.
What stadium do the New York Jets call home?

ANS:
MetLife Stadium