Chapter 4 Emerging Technologies Textbook Solutions

 Fill in the blanks.

(1) IOT is Referred as __________

Answer : Internet of Things

(2) Smart Home is the application of _______ Technology.

Answer : IoT 

(3) Amazon is the ____________ service provider.

Answer : SaaS

Match the pair.

(1) 

Column 'A'	Column 'B'
1) Smart city	a) Software as a Service
2) Amazon web server	b) Platform as a Service
3) PaaS	c) Cloud computing
4) SaaS	d) IOT

Answer : 

Column 'A'	Column 'B'
1) Smart city	d) IOT
2) Amazon web server	c) Cloud computing
3) PaaS	b) Platform as a Service
4) SaaS	a) Software as a Service

State whether given statement is true or false.

(1) PaaS provides a platform with tools to test, develop and host applications in the same environment.

• True

• False

Answer : True

(2) Cloud computing means to store and access data and programs over the internet.

• True

• False

Answer :  True

Explain the followings.

(1) Give some applications of lOT.

Answer : 

Following are some applications of lOT:

1. Smart thermostats - Allows users to schedule, monitor and remotely control home temperatures.
2. Smart lighting - The illumination of light is controlled on the basis of day light.
3. Smart locks and garage door openers, Password-based or facial recognition-based doors and locks.
4. Smart security cameras - Security cameras that can identify known and unknown persons and raise alarm, in case of security threat.
5. Smart traffic signals - Signal that can adjust their commutes and holiday traffic and keep cars moving.

(2) Explain in detail about cloud computing.

Answer : 

1. Cloud computing is the on-demand availability of computer system without direct active management by the user.
2. There are three primary service models of cloud computing that are Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).
3. Infrastructure as a Service (laaS): IaaS provides automated and scalable environments that provide a high degree of control and flexibility for the user.
4. Platform as a Service (PaaS): A service provider offers access to a cloud-based environment in which users can develop, manage and deliver applications.
5. Software as a Service (SaaS): A service provider delivers software and applications through the internet or an API.
6. There are three basic types of deployment of cloud computing that are Public, Private and Hybrid.
7. In public cloud, all the services and supporting infrastructure are managed off-site over the internet and shared across multiple users.
8. Private cloud provides l.T services through the internet or a private network to selected users rather than to general public.
9. Hybrid cloud environments combine both Public and Private cloud elements.

(3) Explain models of cloud computing.

Answer : 

• Cloud Computing is the on-demand availability of computer system without direct active management by the user.
• There are three primary service models of cloud computing that are Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).
• Infrastructure as a Service (laaS):
  (i) IaaS provides automated and scalable environments that provide a high degree of control and flexibility for the user.
  (ii) Instead of purchasing hardware, users pay for IaaS on demand.
  (iii) Examples: Amazon web services (AWS), Microsoft Azure VM, Google Compute Engine (GCE)
• Platform as a Service (PaaS):
  (i) A service provider offers access to a cloud-based environment in which users can develop, manage and deliver applications.
  (ii) PaaS provides a platform with tools to test, develop and host applications in the same environment.
  (iii) Examples: Google App Engine
• Software as a Service (SaaS):
  (i) A service provider delivers software and applications through the internet or an API.
  (ii) Applications are accessible from almost any internet-connected device, from virtually anywhere in the world.
  (iii) Examples: Google's G suite, GitHub, Dropbox.

(4) Give brief idea about Al.

Answer : 

• Artificial Intelligence is the study of making intelligent machines that can perform operations like a human being.
• AI is different from robotics but related to some extent, in which machines sense their environment, perform calculations and do physical tasks either by themselves.

Different fields of AI are as follows:

1. Machine learning is the study of computer algorithms that improve automatically through experience.
2. Neural networks imitate the brain's array of interconnected neurons, and relay information between various units to find connections and derive meaning from data.
3. Deep learning utilizes really big neural networks and a lot of computing power to find complex patterns in data, for applications such as image and speech recognition.
4. Natural language processing involves analyzing and understanding human language and responding to it.

(5) Explain the concept of 5G.

Answer : 

1. 5G is the fifth generation of cellular network technology.
2. 5G is the next generation of wireless communications. It is expected to provide Internet connections that are multiple times faster than 4G LTE (Long Term Evolution).
3. 5G technology may use a variety of spectrum bands, including millimeter wave (mmWave) radio spectrum, which can carry very large amounts of data at a short distance.
4. The drawback of the higher frequencies is that they are more easily obstructed by the walls of buildings, trees and other foliage, and even changes in the weather.
5. The new 5G networks will be able to transmit very large amounts of data but only a few blocks at a time.
6. 5G networks are digital cellular networks, in which the service area covered by providers is divided into small geographical areas called cells.
7. 5G can support up to a million devices per square kilometer, compared to 4G.