CMSC 424 SQL Midterm(100% correct answers)

RAID (redundant array of independent disks) correct answers Disks are cheap; Failures are costly; Use extra disks to ensure reliability; faster access to data RAID 1 correct answers A copy of each disk is kept. Can read from any disk. Must write to both. RAID 5 correct answers Distribute parit...

Turing Complete correct answers • A language is Turing complete if it can compute any function computable by a Turing Machine Syntax correct answers • What a program looks like Semantics correct answers • What a program means Attributes of a Good Language correct answers • Naturalne...

Overriding correct answers When you create a method that already exists in a parent class, the new class overrides this class Overloading correct answers Having methods with the same name but different parameters so Java knows which one to use. @Override correct answers A hint to Java that you...

Inductive Bias correct answers Many classifier hypotheses are possible * Need assumptions about the nature of the relation between examples and classes Data Generating Distribution correct answers A probability distribution D over (x,y) pairs (we don't know what D is but we get a random sample ...

Three terms for language criteria correct answers Readability, writability, reliability Readability correct answers A measure of the ease with which programs can be read and understood by humans Writability correct answers A measure of the ease with which a language can be used to create progr...

Writeability correct answers the ease with which a language can be used to create programs. Simplicity and orthogonality. Support abstraction such as functions to prevent re writing the same code multiple times. Readability correct answers the ease with which programs can be read and understood. ...