Flashcards in IT becker quick notes Deck (21):
Components of IT?
Components of BIS
1. TPS-Transaction Processing System
2. Knowledge Systems and Office Systems
3. MIS-Management Information Systems
4. DPS-Decision Support System
5. EIS- Executive Information System
Order of Events for Data Processing
Accounting trail order includes what?
1. Source document
4. Trial Balance
5. F/S Reports
4 Critical IT Resources include
What are Digital Certificates?
Another form of data security. An electronic document, created and digitally signed by a trusted party, which certifies the identity of the owners of a particular public key. Contains that party's public key.
Public Key Infrastructure?
refers to the system and processes used to issue and manage asymmetric keys and digital certificates.
4 Types of risks
1. Strategic Risk
2. Operating Risk
3. Financial Risk
4. Information Risk
Strategic Risk defined
Risk of choosing inappropriate technology
Operating Risk defined
Doing the right things the wrong way
Financial Risk defined
Having financial resources lost, wasted, or stolen.
Information Risk defined
Risk of loss of data integrity, incomplete transactions, or hackers
Steps in Disaster Recovery
1. Assess the risks
2. Identify mission-critical applications and data
3. develop a Plan
4. Determine the Responsibilities of the personnel involved
5. Test the disaster recovery plan
What is RAM?
stores data TEMPORARILY while it is being processed
What is ROM?
Used to PERMANENTLY store data needed to power the computer.
What is RAID?
Redundant Array of Independent Disks= disk storage, combines multiple inexpensive disk drives into an array of disk drives to obtain performance, capacity and reliability that exceed that of a single large disk drive.
Non redundant, large code
Writes all data to 2 disks original and redundant disks
Writes to 1 disk and parity bit to a second disk
Combination of RAID 0 and RAID 1