IST Ch 5 Data and Knowledge Management

foreign

Functional dependencies are similar to ________ keys.

True

Organizations can use Big Data to conduct experiments.

False

Sarbanes-Oxley requires that private companies evaluate and disclose the effectiveness of their internal financial controls.

bit

A ________ represents the smallest unit of data a computer can process.

mandatory many

A vertical line with a "chicken leg" to the entity represents the ________ cardinality symbol.

non-volatile; cannot

Data marts and data warehouses are ________; this means they ________ be updated by users.

True

Data marts and data warehouses are typically organized by business dimension or subject.

False

Data warehouses are information silos.

redundancy

Database systems minimize ________.

isolation; applications cannot access data associated with other applications

Databases minimize _________; this means ________.

attribute

Each characteristic or quality of a particular entity is called a(n) ________.

rows; columns

Each relational database table contains records (listed in _______) and attributes (listed in ______) .

False

Sarbanes-Oxley holds CIOs personally responsible for financial disclosures since they manage the systems that hold financial information.

explicit knowledge

Suppose you work for XYZ Corporation. You know you can contribute 6% of your salary to a 401K and the company will match that 100% after 6 years of service because it is in the employee handbook. This is an example of ________.

True

The join operation combines records from two or more tables in a database to obtain information that is located in different tables.

rot

You recently inherited an Alvin and The Chipmunks "A Chipmunk Christmas" record. Since you don't have a record player, you need to find a way to convert the record into a CD. This is an example of data ________.

Clickstream data

________ are those data that visitors and customers produce when they visit a website and click on hyperlinks.

Knowledge

________ is an intellectual asset.

Tacit knowledge

________ is the cumulative store of subjective or experiential learning.

SQL

________ is the most popular query language used for interacting with a database.