*Chap 5 & 6 Flashcards
A Data Mart is a subset of a Data Warehouse.
True
Effective communication is essential to the success of every major human undertaking.
True
GPS (Global Positioning Systems) Satellites are located approx. ___ miles above the earth?
5000
A record is a ___?
Collection of related data fields.
All networking devices have an operating system normally referred to as a NOS, Network Operating System.
True
To transform data into information, it must be organized in a meaningful way.
True
A PAN is a personal area network that may use bluetooth protocol to connect.
True
This technology does NOT use GPS as a means of keeping track of assets or devices.
Radio Frequency Identifiers
Coax cable is described as ____ in the network communication world.
Inner conductor wire surrounded by insulation
Microwave transmissions for network communications use the same type of wave that is used in a traditional microwave oven.
True
A DBA and a Data Administrator perform the same functional duties.
False
An Attribute is a person, place, or thing for which data is collected, stored, and maintained.
entity
A field is a ___ ?
Name, number, or combination of characters that describes an aspect of a business object or activity
Data is one of the most valuable resources that a firm possesses.
True
Wireless transmission involves the broadcast of communications in which of these frequency ranges?
Radio, Microwave, Infared
When building a database, an organization must consider ___ ?
Content: What data should be collected and at what cost?
Access: What data should be provided to which users and when?
Physical organization: Where should data be physically located?
A Virtual Private Network is used when ___ ?
A person needs to use a public network to connect remotely and securely over long distances.
Switches, bridges, routers, and gateways are all examples of what type of hardware?
Telecommunications
