IT becker quick notes

Question 1

Components of IT?

Answer 1

1. Hardware
2. Software
3. Data
4. People
5. Network

Question 2

Components of BIS

Answer 2

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

Question 3

Order of Events for Data Processing

Answer 3

1. Collect
2. Process
3. Store
4. Transform
5. Distribute

Question 4

Accounting trail order includes what?

Answer 4

1. Source document
2. Journal
3. Ledger
4. Trial Balance
5. F/S Reports

Question 5

4 Critical IT Resources include

Answer 5

1. Application
2. People
3. Information
4. Infrastructure

Question 6

What are Digital Certificates?

Answer 6

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.

Question 7

Public Key Infrastructure?

Answer 7

refers to the system and processes used to issue and manage asymmetric keys and digital certificates.

Question 8

4 Types of risks

Answer 8

1. Strategic Risk
2. Operating Risk
3. Financial Risk
4. Information Risk

Question 9

Strategic Risk defined

Answer 9

Risk of choosing inappropriate technology

Question 10

Operating Risk defined

Answer 10

Doing the right things the wrong way

Question 11

Financial Risk defined

Answer 11

Having financial resources lost, wasted, or stolen.

Question 12

Information Risk defined

Answer 12

Risk of loss of data integrity, incomplete transactions, or hackers

Question 13

Steps in Disaster Recovery

Answer 13

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

Question 14

What is RAM?

Answer 14

stores data TEMPORARILY while it is being processed

Question 15

What is ROM?

Answer 15

Used to PERMANENTLY store data needed to power the computer.

Question 16

What is RAID?

Answer 16

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.

Question 17

RAID 0

Answer 17

Non redundant, large code

Question 18

RAID 1

Answer 18

Writes all data to 2 disks original and redundant disks

Question 19

RAID4-6

Answer 19

Writes to 1 disk and parity bit to a second disk

Question 20

RAID 10

Answer 20

Combination of RAID 0 and RAID 1

Question 21

SQL consists of

Answer 21

1. DDL- Data definition language
2. DML- Data Manipulation Language
3. DCL- Data Control Lanaguage