ch 15 Flashcards
Operating System (OS)
Enable computer to operate; windows and MAC
Five fundamental control objectives:
- Protect itself from users
- Protect users from each other
- Protect users from themselves
- Be protected from itself
- Be protected from its environment
Protect —
Data warehouse
centralized collection of firm-wide data stored
from past fiscal years
Operational databases
daily operations
transactions/ operations -> current year only
Data mining
searching for patterns in the data
analyzing for decision making
online analytical processing (OLAP)
Data governance
data
1. quality
2. management
3. policies
business process managment and risk manangment
Local Area Networks (LANs)
devices that are connected to the same network with limited geo range
What are the subpoints to LANS
Hubs and switches
hubs do what
broadcast through multiple
ports
switches do what
- provide a path
- each device connected via the network only sees traffic that has been directed
Wide Area Networks (WANs)
- link diffrent sites together
- across geogrpahically dispersed LANS
- broad geographic area
what protection systems are included in WAN
routers and firewalls
Define/ purpose of a router
- Connects different LANS
- Examines IP adress
Define/ purpose of a Firewalls
- secutiry system for hard/soft ware
- send/ receive data packet from the internet
Virtual Private Network
VPN
- secure connection of WANS, send/recieve encrypted packets (info)