Answer:
b. LinkedHashSet
Explanation:
A LinkedHashSet is an ordered version of HashSet that maintains a doubly-linked List across all elements. When the iteration order is needed to be maintained this class is used. LinkedHashSet maintains a linked list of the entries in the set, in the order in which they were inserted.
I would go with A) The Internet
I hope that turns out well for you. Good luck! (:
A computer’s motherboard has a series of slots and connectors. Slots allow daughter boards to be plugged directly while connectors allow communication through cables with other peripheral devices. CPU sockets, Hard Drive connectors, Memory sockets, and Power connector are examples of components that can be connected internally in some way to the motherboard. Other physical devices include RAM, hard disks, and graphics card.
Answer:
B. It uses "Light-years" to talk about time, but a light-year is a unit of distance.
Explanation:
Light-Year is a term used in astronomy to describe the distance that light travels in a year. Informally, astronomers use the light year to describe distances between planets, stars, moons and other astronomical bodies.
Light-years are sometimes mistakenly thought of as units of time — because of the year — but they're actually units of distance, equal to about six trillion miles. In 1851, the light year was first used for defining distances by a German astronomer who compared it to a "hiking hour," or the distance a person can hike in one hour. The term can also figuratively mean "a long way:"
Answer: The correct answer is scientist Robert Kahn and Vint Cerf in a project funded by the US Department of Defense.
Explanation: The first workable prototype of the Internet was developed by Robert Kahn and Vint Cerf in the late 1960s with the development of ARPANET, or the Advanced Research Projects Agency Network. This project used packet switching to allow multiple computers to communicate on a single network and was originally funded by the US Department of Defense.
The technology continued to grow in the 1970s after scientists developed Transmission Control Protocol and Internet Protocol, or TCP/IP, which is a communications model that set standards for how data could be transmitted between multiple networks. This was followed in 1990 by the invention of the World Wide Web by Tim Berners-Lee. This is the most common way for people to access the information that is on the internet.
