Session 17 (Network CC and IofT)

Question 1

what are the three types of networks?

Answer 1

 Centralized
 Client/Server
 Peer-to-Peer

Question 2

what is a centralized infrastructure

Answer 2

 A centralized infrastructure involves sharing
of information systems in one central area or
one central mainframe
 Mainframes were originally the only
computers available for business

Question 3

what is a client/server infrastructure?

Answer 3

 A client/server infrastructure has one or more
computers that are servers which provide
services to other computers, called clients

Question 4

what is a peer-to-peer infrastructure?

Answer 4

A peer-to-peer infrastructure treats all

computers as both client and server

Question 5

what are examples of communication media?

Answer 5

Examples
– Ethernet
– Wi-Fi

 How to choose?
– Capacity: volume and speed
– Reliability
– Cost
– Distance
– Mobility

Question 6

Access the service over network, pay rent
to the vendor who manages the software
and/or hardware is ___ ___

Answer 6

cloud computing

Question 7

discuss software cloud:

Answer 7

– Software Cloud (software as a service: SaaS)
 Firm subscribes to a software-replacing service that
is delivered online

Question 8

discuss hardware cloud (IaaS and PaaS)

Answer 8

– Firm develops its own software, but runs them
over the Internet on someone else’s hardware

 Rent only the hardware and networking services
(infrastructure as a service: IaaS)

 Rent hardware which comes with OS, database and
other software to support app development
(platform as a service: PaaS)

Question 9

what are advantages for clients of software as a service?

Answer 9

– lower costs: s/w, h/w, maintenance, and staff expenses
– financial risk mitigation: startup costs are low
– faster deployment/implementation times
– variable costs: vs. large, fixed capital expense
– scalable system: for periods of unexpectedly high
system use
– higher quality and service levels: instantly available
(and frequent) upgrades, vendor scale economies, &
expertise gained from its entire client base
– remote access: accessed through any web
browser/mobile

Question 10

what are disadvantages of software as a service?

Answer 10

– dependence on a single vendor; concern about the
long-term viability of partner firms
– users may be forced to migrate to new versions:
incurring unforeseen training costs and shifts in
operating procedures
– reliance on network connection
– data asset stored off-site: security and legal concerns
– limited configuration, customization, and system
integration
– user interface often less sophisticated
– ease of adoption may lead to unauthorized IT use

Question 11

what are advantages for vendors of using software as a service?

Answer 11

– limiting development to a single platform, instead of
having to create versions for different operating
systems
– tighter feedback loop with clients, helping fuel
innovation and responsiveness
– ability to instantly deploy bug fixes and product
enhancements to all users
– lower distribution costs
– accessibility to anyone with an Internet connection.
– greatly reduces software piracy

Question 12

– Usage-based pricing model akin to a monthly
subscription
– Offer free services that are supported by
advertising
– Promote the sale of upgraded or premium
versions for additional fees

are an example of a ____ vendor’s revenue model

Answer 12

Software as a Service (Saas)

Question 13

in the ___ cloud, the provider charges for specific resource usage rather than a flat rate

Answer 13

hardware

Question 14

what is cloudbursting (within the hardware cloud?)

Answer 14

– Describes the use of cloud computing to provide
excess capacity during periods of spiking demand
 It is a scalability solution that is usually provided as
an overflow service, kicking in as needed
 Data center reaches max capacity  seamlessly
shift part of workload to the cloud
– Scalable computing resources can help a firm deal
with spiking impact from Black Swan (unpredicted,
rare, but highly impactful) events

Question 15

how are clouds affecting the tech industry?

Answer 15

– affecting the competitive dynamics of the
hardware, software, and consulting industries
– alters the margin structure for many in the
computing industry
– accelerate innovation, therefore, changing the
desired skills mix and job outlook for IS workers
– decreases the barriers to entry by lowering the
cost to access powerful systems and software

Question 16

what is the role of virtualization in the cloud?

Answer 16

– A technology that can make a single computer
behave like many separate computers
 The function helps consolidate computing
resources. It also creates additional savings and
efficiencies
 Creates smaller compartments in memory which
behave as separate computers (with own OS and
resources)
 Makes public cloud computing possible
 Can also be used in-house to create private clouds

Question 17

what is the internet of things?

Answer 17

the interconnection via the Internet of computing
devices embedded in everyday objects, enabling
them to send and receive data.

Question 18

_______ refers to the rapidly growing network of
connected objects that are able to collect and
exchange data using embedded sensors.
Thermostats, cars, lights, refrigerators, and more
appliances can all be connected to the IoT

Answer 18

the internet of things

Question 19

what are some examples of applications of the internet of things?

Answer 19

1. Smart Home
2. Wearables
3. Connected Cars
4. Industrial Internet
5. Smart Cities
6. IoT in agriculture
7. Smart Retail
8. Energy Engagement
9. IoT in Healthcare
10. IoT in Poultry and Farming