EDA

Question 1

Data

Answer 1

collection of raw facts from which conclusions may be drawn

Question 2

Who creates data?

Answer 2

◦ Individuals
◦ Businesses

Question 3

CATEGORIES OF DATA

Answer 3

1. STRUCTURED
2. UNSTRUCTURED

Question 4

STRUCTURED

Answer 4

• Data Bases
• Spread Sheets

Question 5

UNSTRUCTURED

Answer 5

• Forms
• Images
• Audio
• Movies

Question 6

What do individuals/businesses do with the data they collect?

Answer 6

They turn it into “information”

Question 7

” ____ is the intelligence and knowledge derived from data”

Answer 7

Information

Question 8

___ analyze raw data in order to identify meaningful trends

Answer 8

Businesses

Question 9

Value of Information to a Business

Answer 9

• Creating a competitive advantage
• Identifying new business opportunities
• Identifying patterns that lead to changes in existing business
  
  • New services
  • Targeted marketing campaigns

Question 10

___ used depends on the type of data and its creation/usage rate.

Answer 10

Type of storage

Question 11

Storage
* Data created by individuals/businesses must be ____

Answer 11

stored for further processing.

Question 12

Storage Examples:
* __ : Digital camera, Cell phone, DVDs, Hard disk

Answer 12

Individuals

Question 13

Storage Examples:
* __ : Hard disk, External disk arrays, Tape library

Answer 13

Businesses

Question 14

Storage Model: An Evolution

Answer 14

Centralized & Decentralized

Question 15

Mainframe computers

Answer 15

Centralized

Question 16

• __ : __ (Data spread across many servers)

Answer 16

Decentralized: Client-server model

Question 17

• __ : __ (Huge repositories)

Answer 17

Centralized: Storage networking

Question 18

The Core Elements

Answer 18

• Applications
• Databases – Database Management System (DBMS) and the physical and logical storage of data
• Servers/Operating systems
• Networks (LAN and SAN)
• Storage arrays

Question 19

KEY REQUIREMENTS FOR DATA CENTER ELEMENTS

Answer 19

• Data Integrity
• Availability
• Security
• Performance
• Scalability
• Capacity
• MIDDLE ILAGAY: MANAGEABILITY

Question 20

Challenges in Managing Information

Answer 20

• Exploding digital universe
• Increasing dependency on information
• Changing value of information

Question 21

Some Constraints to Meeting the
Requirements

Answer 21

• Cost
• Physical environment
• Maintenance and support
• Compliance – regulatory and legal
• Hardware and software infrastructure
• Interoperability and compatibility

Question 22

• Applications runs on __

Answer 22

Host

Question 23

__ can range from simple
laptops to complex server clusters

Answer 23

Hosts

Question 24

PHYSICAL COMPONENTS of host:

Answer 24

• CPU
• Storage
• I/O device

Question 25

• Host to host communications (H2H)

Answer 25

Network Interface Card (NIC)

Question 26

• Host to storage device
  communications (H2SD)

Answer 26

• Host Bus Adapter (HBA)

Question 27

I/O Devices

Answer 27

• Human interface
• Computer-computer interface
• Computer-peripheral interface

Question 28

• Human interface

Answer 28

• Keyboard
• Mouse
• Monitor

Question 29

• Computer-computer interface

Answer 29

• Network Interface Card (NIC)

Question 30

• Computer-peripheral interface

Answer 30

• USB (Universal Serial Bus) port
• Host Bus Adapter (HBA)

Question 31

Logical Components of the Host

Answer 31

• Application
• Operating system

Question 32

• Interface between user and the host
  
  • Three-tiered architecture
    
    • Application UI, computing logic and underlying databases

Answer 32

Application

Question 33

• Application data access can be classifies as:

Answer 33

• Block-level access
• File-level access

Question 34

Data stored and retrieved in blocks, specifying the LBA

Answer 34

• Block-level access

Question 35

Data stored and retrieved by specifying the name and path of files

Answer 35

• File-level access