IS System Exam 2

Question 1

What is the definition of IS Infrastructure?

Answer 1

Set of hardware and software and other tech services and policies required to operate an enterprise.

Question 2

What are the components of IT infrastructure?

Answer 2

Hardware, software, services, policies.

Question 3

What are the eras of IT infrastructure evolution?

Answer 3

Mainframe, PC, Client/Server, Enterprise, Cloud, Mobile.

Question 4

How do infrastructure choices impact business?

Answer 4

They affect IT spending and business practices.

Question 5

Define hardware.

Answer 5

Physical components of a computer system.

Question 6

What are the categories of hardware devices?

Answer 6

• Input
• Output
• Processing
• Connecting
• Network
• Storage

Question 7

What is Moore’s Law?

Answer 7

Computing power doubles every 18 months.

Question 8

What does digital storage represent?

Answer 8

Data is physically represented with 0’s and 1’s; bits and bytes.

Question 9

What are the types of storage?

Answer 9

• Sequential access
• Direct access
• Magnetic
• Optical
• Primary memory
• Secondary memory

Question 10

What is processing hardware?

Answer 10

Includes CPU, chip, microprocessor, RAM, cache, motherboard.

Question 11

What is the role of cache in processing?

Answer 11

Small, fast memory near CPU to support processing.

Question 12

What is Memory Swapping?

Answer 12

Software instructions and data are loaded into RAM, and if RAM is insufficient, software is swapped in and out.

Question 13

Define client in a client/server infrastructure.

Answer 13

Computer or device that requests the service.

Question 14

Define server in a client/server infrastructure.

Answer 14

More powerful computer that hosts and serves to clients.

Question 15

What is Peer to Peer infrastructure?

Answer 15

All devices on the network request and provide services to other devices.

Question 16

What is the computer hierarchy?

Answer 16

Types of computers organized by computing power: computing device to supercomputer.

Question 17

What are hardware trends that help get computing power?

Answer 17

• Grid computing
• Utility/On Demand computing
• Virtualization

Question 18

What is the role of Operating System Software?

Answer 18

Interface between user/program and hardware; manages physical resources.

Question 19

What are examples of Operating Systems?

Answer 19

• Windows
• Mac OS
• UNIX
• Linux

Question 20

What is OSS?

Answer 20

Open source software; code is not proprietary and use is free.

Question 21

What is traditional software development model?

Answer 21

Programmers write proprietary code; consumers buy executable file.

Question 22

What is application software?

Answer 22

Programs that perform a specific task.

Question 23

What are the types of market software?

Answer 23

• Horizontal
• Vertical
• One-of-a-kind

Question 24

What are the software acquisition types?

Answer 24

• Off-the-shelf
• Custom developed
• Outsource
• Insource
• Self source

Question 25

What does RFP stand for in outsourcing?

Answer 25

Request for Proposal.

Question 26

What are the benefits of cloud computing?

Answer 26

Scalability, flexibility, cost-effectiveness.

Question 27

What are the types of cloud computing?

Answer 27

* Public * Private * Hybrid

Question 28

What is the purpose of Enterprise Application Integration?

Answer 28

To address challenges of integration between different platforms.

Question 29

What is middleware?

Answer 29

Additional proprietary software to interface among legacy systems.

Question 30

What are the benefits of an enterprise solution?

Answer 30

* One IT platform * Up-to-date technology * Timely information for decisions

Question 31

What are the challenges of an enterprise solution?

Answer 31

* Total cost of ownership * Time and effort * Change management

Question 32

What are the components of a network?

Answer 32

* NIC * Medium * NOS * Hub * Switch * Router

Question 33

What is packet switching?

Answer 33

A method of data transmission where data is broken into packets.

Question 34

What are examples of protocols?

Answer 34

* HTTP * FTP * SMTP * TCP/IP

Question 35

What is the difference between the Internet and the World Wide Web?

Answer 35

The Internet is a network; the World Wide Web is content accessed via the Internet.

Question 36

What is a VPN?

Answer 36

Virtual Private Network.