Relational database model Study guides, Revision notes & Summaries

ICT2621 2023 Assignment 3 solution Questions: Question 1 NB: When drawing data flow diagrams (DFDs), use the Gane and Sarson symbols/notation set. 1.1 Draw, name and describe the four symbols used in a data flow diagram (DFD). You may use a table to present your answer. (6) 1.2 Briefly describe the following with respect to DFDs: 1.2.1 Levelling(2) 1.2.2 Balancing(2) 1.2.3 Data dictionary(2)1.3 Draw a diagram of an example of each of the following showing the process, and the input(s...

Question 1 Answer saved Marked out of 1.00 Flag question Question text You can avoid electronic waste by replacing devices every time a new version comes out. True False Question 2 Answer saved Marked out of 1.00 Flag question Question text Gerhard has to type a report about a class trip to the museum. Which of the following apps should he use to write the report? Select one: A. Presentation B. Spreadsheet C. Word processor D. Messaging Clear my choice Questio...

Nursing Informatics Certification Exam, ANCC Informatics, ANCC Nursing Informatics Certification Review 629 Questions with Answers Meta structure of NI - CORRECT ANSWER The ability of the nurse to utilize data, information, and knowledge to make wise clinical decisions. Definition of Nursing Informatics - CORRECT ANSWER A speciality that integrates nursing science with multiple information and analytical sciences to identify, define, manage and communicate data, information, knowledge and ...

Includes everything from: Lecture 1: Data Management Systems, Relational, and SQL Lecture 2: Entity Relationships, and Translating from a Natural Lecture 3: Translating ERD to DB Schema, and Database Normalization Lecture 4: Evolution of Data Management, Big Data, and Data Intensive Systems Lecture 5: The Spark Ecosystem, RDDs, Programming Model, and PySpark Lecture 6: Data Transformations with SQL, Entity Recognition, Data Cleaning Tools

Which phase of the cloud data life cycle allows both read and process functions to be performed? A Create B Archive C Store D Share A Which phase of the cloud data security life cycle typically occurs simultaneously with creation? A Share B Store C Use D Destroy B 00:57 01:12 Which phase of the cloud data life cycle uses content delivery networks? A Destroy B Archive C Share D Create C Which phase of the cloud data life cycle is associated with crypt...

WGU-C838 2023 -2024 Exam Questions With Correct Answers "Which phase of the cloud data lifecycle allows both read and process functions to be performed? (A) Share (B) Store (C) Create (D) Archive" - CORRECT ANSWER Create "Which phase of the cloud data security lifecycle typically occurs simultaneously with creation? (A) Use (B) Share (C) Store (D) Destroy" - CORRECT ANSWER Store "Which phase of the cloud data life cycle uses content delivery...

What is a broad definition of data? Raw facts that are captured on printed or digital media What are data? Facts that are collected and stored in a database system What is a determining characteristic of unstructured data? It does not follow a data model. Which is true about flat files? They contain no internal hierarchical organization. Which technology has no internal hierarchy? Flat files How were data retrieved before database management systems? Sequ...

What is a broad definition of data? Correct Answer Raw facts that are captured on printed or digital media What are data? Correct Answer Facts that are collected and stored in a database system What is a determining characteristic of unstructured data? Correct Answer It does not follow a data model. Which is true about flat files? Correct Answer They contain no internal hierarchical organization. Which technology has no internal hierarchy? Correct Answer Flat files How were data r...

The summery contains all the lectures of the course Foundations of Databases of the minor Data Science in Business. The elaborated slides and the summary slides, as well as some coding examples are included.

WGU C175 OBJECTIVE ASSESSMENT PRACTICE TEST ANSWER 1. The Entity-Relationship (E-R) model is _____. a. a diagramming technique that describes record structures (i.e. the fields that make up the records of a file) b. an alternative to indexing and hashing as a means for providing direct access in files c. a diagramming technique that describes entities, their attributes, and the relationships between them d. an alternative to file design in which attributes are used instead of fields e. a diagram...