Article: Within computer systems, two of many security models capable of enforcing privilege separation are access control lists (ACLs) and capability-based security. Using ACLs to confine programs has been proven to be insecure in many situations, such as if the host computer can be tricked into indirectly allowing restricted file access, an issue known as the confused deputy problem. It has also been shown that the promise of ACLs of giving access to an object to only one person can never be guaranteed in practice. Both of these problems are resolved by capabilities. This does not mean practical flaws exist in all ACL-based systems, but only that the designers of certain utilities must take responsibility to ensure that they do not introduce flaws.[citation needed]

Question: The confused deputy problem and the problem of not guaranteeing only one person has access are resolved by what?
Ans: capabilities

Article: As for Mac OS, System 7 was a 32-bit rewrite from Pascal to C++ that introduced virtual memory and improved the handling of color graphics, as well as memory addressing, networking, and co-operative multitasking. Also during this time, the Macintosh began to shed the "Snow White" design language, along with the expensive consulting fees they were paying to Frogdesign. Apple instead brought the design work in-house by establishing the Apple Industrial Design Group, becoming responsible for crafting a new look for all Apple products.

Question: What was established for bringing Apple's design work in-house?
Ans: the Apple Industrial Design Group

Article: Ptolemy's Geography divided Asia on a similar basis. In the north is "Scythia this side of the Himalayas" and "Scythia beyond the Himalayas." To the south is "India on this side of the Ganges" and "India beyond the Ganges." Asia began on the coast of Anatolia ("land of the rising sun"). Beyond the Ganges and Himalayas (including the Tien Shan) were Serica and Serae (sections of China) and some other identifiable far eastern locations known to the voyagers and geographers but not to the general European public.

Question: What divided Asia on a similar basis?
Ans: Ptolemy's Geography

Article: Navigation is based on a variety of senses. Many birds have been shown to use a sun compass. Using the sun for direction involves the need for making compensation based on the time. Navigation has also been shown to be based on a combination of other abilities including the ability to detect magnetic fields (magnetoception), use visual landmarks as well as olfactory cues.

Question: What does using the sun for direction involve?
Ans:
the need for making compensation based on the time