IS 302: Analysis of Chapter 2 and Chapter 3 Mini Case Solutions

This document presents solutions for the IS 302 mini-cases, focusing on two key areas: the physical layer and application architectures. The first part analyzes a scenario involving a phone call, examining digital transmission, LTE, fiber optic cables, and Wi-Fi technologies. It explores how voice is translated into signals, the role of cell towers, and the advantages of different transmission methods. The second part addresses application architectures, specifically focusing on a case study about an electrical supplies company. It discusses different client-server models such as two-tier and N-tier, thin-client architectures, and the concept of Data as a Service (DaaS). Furthermore, it analyzes the impact of cloud-based computing on a business, highlighting the benefits of increased computing resources and wider market reach. The document offers detailed explanations and justifications for each answer, providing valuable insights into the concepts of electronics and application architectures. It also includes references to relevant sources.

Running head: ELECTRONICS
ELECTRONICS
Name of Student
Institution Affiliation

ELECTRONICS 2
IS 302 CHAPTER 3 MINI CASE
CHAPTER 3: PHYSICAL LAYER
Q1
Choice a Digital transmission of digital data
During the process of making call the mobile phone converts our sound into a pattern of numbers
(0s and 1s) then beam them via air. And this is done digitally since it involves the 1s and 0s. The
receiver will receive a signal which has been encoded from digital to analog (sound)
Q 2
Choice a LTE
Basically encoding is a process of sequential conversion of characters, symbols, data or alphabet
into a particular format to enable safe sending of data. And for this, the communication between
the tower and the rest of the world will because the data will still be transmitted to other places.
Q3
Choice a : Fiber optic cable
This is because for the sparsely populated and mountainous region it is very easy to have
the fibers for the transmission of data. Optic fiber can be go down to the bottom of the
mountain or top of the mountain with a lot of easy. And being that the area is not densely
populated it very easy to lay the optic fiber cables for the transmission of the signals.

ELECTRONICS 3
Q 4
Choice b,
Repeaters boost the light transmission over a length of fiber optic cable. The repeaters are
powered, over a copper conductor, from the cable landing sites on each end (negative
voltage from one end, positive voltage from the other end).
A fiber optic cable could be a coordinate connect through which it interfaces one nation
to the rest of the globe for voice and information transmission. There are arrive as well as
submerged associations all over the world, connecting nations through an arrangement of fiber
optic cables (Carter, 2010). Larger part of the world’s broadcast communications and Web
activity streams through these arrange of cables. The submarine fiber optic cables are laid along
the seabed between land-based stations. These cables carry media transmission signals over the
sea; carrying phone, web, and private information activity. This can be illustrated using the
following diagram:
Figure 1: Showing submarine cables

ELECTRONICS 4
Submarine frameworks have optically increased repeaters which are all photonic, meaning that
no gadgets exists in their transmission way. This permits for the less complex repeater
development to have a bit rate free from tweak and to utilize as it were moo speed hardware.
Pump lasers are the most components of a repeater, which stay ensured on a 1 + 1 premise to
manage with conceivable component disappointment (Beckman, 2013). Framework exhibitions
are observed from the submarine line terminal station by tweaking a really low-level flag onto
the carrier. The flag is looped-back through an uncommon tall loss optical loop-back coupler at
each repeater.
Q 5
Choice a Wi-Fi
This is because the other choices are basically cables but the message received by the parent
would be through wireless not through a physical cable.

ELECTRONICS 5
IS 302 CHAPTER 2 MINI CASE
APPLICATION ARCHITECTURES
Q 1
Choice a Two-tier client server.
Two-Tier Client/Server
This server operates when all or most application data and logic is hosted on a server. The client
will hence integrate with the presentation layer hence access the server for doing some particular
duty and processing.
Q2
Choice d Thin-Client architecture
This is a server having few programs stored locally and it highly depend on network resources.
In some cases it may contain very few resources and data by its own.
Q3
Choice b N-tier client server
N-tier Client server

ELECTRONICS 6
In this server all the thinking occurs and it is knows what the application should allow and what
is possible for it in making some basic logic decision. It is the same logic tier which will read and
write the data into the data tier.
Q4
Choice b Daas (Data as a service)
All the presentation logic, application logic, data storage and data access logic takes place at the
Thin client.
Q 5
Choice d
Shockingly Great’s move to cloud-based computing requires it to purchase large chunks of
computing resources in order to operate. This offsets the capital required to operate its traditional
computing system.
Having huge chunks of computing resources, shockingly Great´s will have access to more
information hence can do more business effectively without any limitation. Many clients will be
reached as well as many supplies. This will make the company to make more profit.

ELECTRONICS 7
References
Beckman, R. (2013). Submarine Cables: The Handbook of Law and Policy. Chicago: Martinus
Nijhoff Publishers.
Carter, L. (2010). Submarine Cables and the Oceans: Connecting the World. Chicago:
UNEP/Earthprint.