____ is a high-speed storage area physically located in the computer's processing unit.
A. A reserved variable
B. RAM
C. A register
D. A stack
Answer: C
Computer Science & Information Technology
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The task of a ___________ is to repeat, group, place or classify one or more characters.
Fill in the blank(s) with the appropriate word(s).
Computer Science & Information Technology
Consider the schema
Student(Id: INTEGER, Name:STRING, Address:STRING, Status:STRING) Transcript(StudId:INTEGER, CrsCode:STRING, Semester:STRING, Grade:STRING)(a) The following query
SELECT S.Name FROM Student S WHERE 3 > SELECT COUNT (*) FROM Transcript T WHERE S.Id = T.StudId AND T.Grade = 'A' AND T.Semester = 'S2002'returns the names of all students who got an A in a more than three course in the Spring semester, 2002. Assuming that the inner and outer queries are optimized separately, what index would you choose for the inner query? What query plan would it be reasonable to expect the DBMS to use? (b) Convert the query to a non-nested form. (c) Suggest an index for the new query and a possible query plan.
Computer Science & Information Technology
Most economists regard goods and services as a continuum, with intangible goods, such as __________, in the middle of the continuum.
A. hardware B. software C. computers D. exports
Computer Science & Information Technology
A system used to interconnect a set of basic service sets and LANs to create an extended service set is a _________.
A. distribution system B. coordination function C. MAC data unit D. wireless access system
Computer Science & Information Technology