Dml exam 1 Samenvattingen, Aantekeningen en Examens

WGU C846 ITIL_v3_Foundation_Practice_ Answered Exam.GUIDELINES FOR THE PRACTICE EXAM  Practice exams should be taken without using any notes  Try to complete the 40 questions in under 60 minutes  Aim to achieve a score of 85% or higher on this exam 1. What BEST describes a definitive media library (DML)? a) Secure location that holds definitive hardware spares b) Secure library where definitive authorized versions of all media configuration items (CIs) are stored and protected ...

Data Management Foundation C175 WGU. Top Exam Question with accurate answers, rated A+ Associative Entity - -An associative entity is an element of the entity-relationship model. All relationships for the associative entity should be many. Attribute - -An attribute is a property or characteristic of an entity. Binary relationship - -A binary relationship is a relationship between two entity types. Candidate Key - -Is any column or a combination of columns that can qualify as unique k...

WGU C175 quizzes/. Top exam questions with accurate answers, rated A+ One disadvantage of the DBMS is that it increases the risk of data security breaches. - -False Accurate, relevant, and timely information is the key to____. - -good decision making _____ relates to the activities that make the database execute transactions more efficiently in terms of storage and access speed. - -Performance tuning The response of the DBMS to a query is the ______. - -query result set Field re...

BCOR 330 EXAM 2 WVU, questions and answers (scored 30 out of 30) latest updated Understand the difference between a database and a spreadsheet: A spreadsheet is a computer software that simulates a paper worksheet. We use it to tabulate data and create graphs based on the data. A database is a collection of related data that can be accessed quickly. A database is meant to hold a large amount of data and some databases routinely do. Why do businesses use databases today? Databases help ...

WGU - C175 Exam With 100% Correct Answers 2023 3 Vs - Correct Answer-Three basic characteristics of Big Data databases: volume, velocity, and variety. abstract data type (ADT) - Correct Answer-Data type that describes a set of similar objects with shared and encapsulated data representation and methods. A(n)___ is generally used to describe complex objects. See also class. ad hoc query - Correct Answer-A "spur-of-the-moment" question. alias - Correct Answer-An alternative name for a co...

WGU C175. Top Exam Questions with accurate answers, 100% Accurate, graded A+ Flat Files - -a file having no internal hierarchy Hashed Files - -A file that has been encrypted for security purposes. Heap File - -An unsorted set of records. Information - -The transformation of raw data into useful facts. Punch Card - -A card that is perforated and can hold commands or data. Structured Data - -Information with a high degree of organization. Unstructured Data - -Information tha...

AIN2601 – EXAM PREPARATION 2022. (SCORED A) SECTION A 1. The database architecture has different levels. The level with a complete view of the entire/whole database (of which there is only one such view) is known as the _______ level. A) user B) internal C) external D) conceptual 2. The current year to date sales for each of the organisation’s customers will be contained in the ________ database file. A) customer transaction B) customer master C) customer reference D) customer ...

SECTION A 1. The database architecture has different levels. The level with a complete view of the entire/whole database (of which there is only one such view) is known as the _______ level. A) user B) internal C) external D) conceptual 2. The current year to date sales for each of the organisation’s customers will be contained in the ________ database file. A) customer transaction B) customer master C) customer reference D) customer history 3. Where a spreadsheet is used for a pe...

INF2603 - Full 2021 Exam pack03 – Semester 1 – 2014 – Glossary of terms used in exam papers from 2012 to 2013 Attribute A characteristic of an entity or object. Column Constraint In this type the constraint is checked when the value of the column changed. Composite key A multiple-attribute key. Database A shared, integrated computer structure that houses a collection of related data. Data Definition Language (DDL) The language that allows a database administrator to define the da...

INF3707 Exam Notes 1.1 b.View – virtual table, not table on its own but mirrors table(temp table). Multiple tables – complex, single table – simple. In addition, the function and GROUP BY clause prevent changing the displayed data because each record might represent more than one row in the underlying key-preserved Reasons for view table – security, not direct DB access, efficiency – less direct DB hits table. CH. 13, text book pg 517 e-book pg 539 1.2 c. _ and % allows white c...