Question 1

Flurry's main issues surround ______ concerns, particularly in _____.

Accepted Answer

Flurry's main issues surround privacy concerns, particularly in Europe, due to the implementation of the General Data Protection Regulation (GDPR) which requires companies to obtain explicit consent from users before collecting and processing their personal data.

Question 2

A __________________________ defines the required format for entering the data into the database

Accepted Answer

A data dictionary is a documentation of all data elements that are stored in the database. It includes information about the structure of the database, including tables, fields, data types, and relationships between tables. Additionally, it defines the required format for entering the data into the database.

Question 3

____________ is a benefit of a data dictionary.

Accepted Answer

A data dictionary helps standardize data definitions, reducing the chances of using different names for the same attribute across applications.

Question 4

The purpose of Flurry is to ___________.

Accepted Answer

Flurry is a platform that offers a high-speed auction system for targeting ads to individuals. It provides a real-time bidding system that allows advertisers to place bids on targeted audiences, optimizing their ad campaigns for maximum effectiveness. It does not allow users to block ads, guarantee ad views, or send as many ads as possible.

Question 5

Mobile RTB allows advertisers to bid on __________.

Accepted Answer

Mobile RTB allows advertisers to bid on each impression, meaning they can target a specific user at a specific time and place, rather than buying a bundle of impressions. This allows for more efficient targeting and budget allocation.

Question 6

SQL is the most popular query language because it ___________.

Accepted Answer

SQL is popular because it has relatively simple statements that are easy to learn and use for querying and managing data in relational databases.

Question 7

An entity is the same thing as a field.

Accepted Answer

An entity is not the same thing as a field. An entity refers to a distinct object or concept in a data model, while a field is a specific piece of information within an entity.

Question 8

A ___________ relationship exists when an association is maintained within a single entity.

Accepted Answer

A unary relationship exists when an association is maintained within a single entity. This means there is only one entity involved in the relationship.

Question 9

Managing data is easier nowadays since there is so much of it.

Accepted Answer

While there are now more tools and technologies available to help manage data, the sheer volume and complexity of data can still make it a challenging task. Additionally, ensuring data privacy and security is becoming increasingly important and requires additional effort and resources.

Question 10

When data are normalized, attributes in the table depend only on the secondary key.

Accepted Answer

When data are normalized, attributes in the table depend on all primary and candidate keys, not just secondary keys. Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity. It involves breaking down a table into multiple smaller tables and establishing relationships between them. In the resulting normalized tables, attributes depend on all primary and candidate keys to ensure that data is stored in a consistent and efficient manner.

Question 11

Big Data predictions come from applying mathematics to huge quantities of data to infer probabilities.

Accepted Answer

Big Data predictions are based on applying mathematical models and algorithms on large datasets to generate insights and probabilistic forecasts. The process involves extracting, processing, analyzing, and interpreting vast amounts of structured and unstructured data, allowing organizations to make data-driven decisions and improve their operational efficiency and competitiveness.

Question 12

Flurry uses a ________ in its data collection efforts.

Accepted Answer

Flurry uses an opt-out model of informed consent, meaning users are automatically included in data collection unless they specifically choose to opt-out.

Question 13

___________ is a challenge of KMS.

Accepted Answer

The answer of ___________ is a challenge of KMS.
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Question 14

Tacit knowledge is easier to document than explicit knowledge.

Accepted Answer

Tacit knowledge refers to knowledge that is hard to articulate or codify, as it is often based on intuition, experience, and skills that are deeply personal and difficult to communicate. Therefore, it is more difficult to document than explicit knowledge, which can be easily articulated and communicated through written or verbal means.

Question 15

Data warehouses maintain historical data while data marts are real-time.

Accepted Answer

Data warehouses are designed to maintain historical data and are optimized for complex queries, while data marts are smaller, more targeted subsets of data warehouses that are designed for real-time analytics and decision-making. Data marts typically only contain data from a specific department, functional area, or business process, and they are updated frequently to ensure that the data is as current as possible.

Question 16

Secondary keys identify a file with complete accuracy.

Accepted Answer

Secondary keys can potentially identify multiple files, whereas primary keys are the only ones that can uniquely identify a file with complete accuracy.

Question 17

If your university has a policy that states you must take a minimum of 12 hours to be considered a full-time student and take no more than 21 hours without special permission, the 21 hours rule is referred to as ____________.

Accepted Answer

The answer of If your university has a policy that...

Question 18

Data governance is implemented through master data management.

Accepted Answer

Master data management is a key component of data governance, as it involves creating and maintaining a single, trusted source of master data for an organization. This helps ensure that data is consistent, accurate, and aligned with business objectives, which is a key goal of data governance.

Question 19

Databases maximize data independence.

Accepted Answer

Databases provide a layer of abstraction between the physical storage of data and the way it is accessed and manipulated. This allows for changes in data storage and organization to be made without affecting the applications and users accessing the data. Therefore, databases maximize data independence.

Question 20

NoSQL databases only allow businesses to manipulate structured data.

Accepted Answer

NoSQL databases also allow businesses to manipulate semi-structured and unstructured data, which makes them suitable for handling big data and data that does not conform to traditional tabular structures.

Quiz 5: Data and Knowledge Management

Flurry's main issues surround __ concerns, particularly in _.