Introduction to Information Security
Data Hierarchy
Entity-Relationship Modeling
Networks
Communications Media and Channels
100

The degree of protection against criminal activity, danger, damage, and/or loss

What is security?

100

A binary digit that is the smallest unit of data a computer can process

What is a bit?

100

The process of designing a database by organizing data entities to be used and identifying the relationships among them

What is entity-relationship modeling?

100

The transmission capacity of a network, stated in bits per second

What is bandwidth?

100

Communications channels that use physical wires or cables to transmit data and information

What is broadcast media or wireless media?

200

Refers to the processes and policies designed to protect an organization's information and information systems from unauthorized access, use, disclosure, disruption, modification, or destruction

What is information security?

200

A group of eight bits that represent a single character which can be a letter, number, or symbol

What is a byte?

200

A document that shows data entities and attributes and relationships among them

What is an entity-relationship diagram?

200

The transmission capacity of a communications medium faster than 4 Mbps

What is broadband?

200

Communications channels that use electromagnetic media (airwaves) to transmit data

What is broadcast media or wireless media?

300
Any danger to which a system may be exposed

What is a threat?

300

A logical grouping of characters into a word, small group of words, or an identification number

What is a field?

300

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

What is a unary relationship?

300

A network that connects communications devices in a limited geographic region, such as a building, so that every user device on the network can communicate with every other device

What is a local area network (LAN)?

300

A communication medium consisting of strands of copper wire twisted together in pairs

What is a twisted-pair wire?

400

The harm, loss, or damage that can result if a threat compromises and information source

What is exposure?

400

A grouping of logically related fields such as a student's name, courses taken, the date, and the grade

What is a record?

400

A relationship that exists when two entities are associated

What is a binary relationship?

400

A network, generally provided by common carriers, that covers a wide geographical area

What is wide area network (WAN)?

400

Insulated copper wire that is used to carry high-speed data traffic and television signals

What is a coaxial cable?

500

The possibility that a system will be harmed by a threat

What is vulnerability?

500

A collection of logically related records

What is a data file?

500

A relationship that exists when three entities are associated

What is a ternary relationship?

500

High-speed central networks to which multiple smaller networks (LANs and smaller WANs) connect

What is backbone networks?

500

A communications medium consisting of thousands of very thin filaments of glass fibers, surrounded by cladding, that transmit information via light pulses generated by lasers

What is a fiber-optic cable?

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