APPLIED NETWORKING II

Question 1

What are examples of communication tools

Answer 1

-Instant Messaging (IM)
-Short Message Service (SMS)
Short Message Service(SMS)- short text messages
between mobile phones.
• Multimedia Message Service(MMS)-multimedia messages such as images and
videos, to other users
• Voice over Internet Protocol(VoIP)
Enables voice messages to be sent from computer to computer over the internet
-Emails

Question 2

What are the benefits of Instant Messaging (IM)

Answer 2

• Real-time communication
• Knowing whether contact are online
• Low cost
• The ability to transfer files
Eg Whatsapp

Question 3

What are the benefits of Emails

Answer 3

1. Email arrives almost instantaneously
2. They are cheap to send
3. Messages can be accessed at any time

Question 4

What are the problems when sending file

attachments

Answer 4

• File size and network restrictions
• File types and anti-virus restrictions eg .exe, .bat
• Receiving fraudulent and unsolicited e-mail

Question 5

What is phishing

Answer 5

when we receive an email from a sender pretending to be a legitimate company in an attempt to get you to give confidential personal information

Question 6

What is online collaboration

Answer 6

• Is the ability for a group of people to work together and communicate in real time over the internet.

Question 7

What are examples of services that support online collaboration

Answer 7

• Cloud Computing
• Mobile Technology
Such as laptops, tablets and smartphones
can enable users to access the internet
anytime, anywhere via wireless technology.

Question 8

What is cloud computing?

Answer 8

Cloud computing is a technology that lets
users access and use computing resources
and files, folders and applications over the
internet. This files, applications and folders are accessed over the internet from the hosting server

Question 9

What are the Characteristics of Online collaborative tools

Answer 9

• Multiple users - Any number of users can
collaborate at a time, using same application.
• Real time: Supporting services for online
collaboration enables users to simultaneously edit
files with changes that each user make being
applied on the instantly.
• Global reach: The tools are not confined to a particular location but enable users to collaborate at any time from anywhere in the world provided
they have internet access.
• Concurrent access: multiple users can work on the online service and tools at the same time.

Question 10

What are the benefits of online collaborative tools

Answer 10

• Shared files and calendars
• Reduced travel expense
• Ease of communication
• Enhanced teamwork
• Global access

Question 11

What are the risks associated with using

online collaborative tools

Answer 11

• Unauthorized access to share files
• Insufficient management of version control
• Malware threats
• Identity/data theft
• Service interruptions

Question 12

What are the cloud service models?

Answer 12

• Software as a Service(SaaS) -The Cloud provider hosts applications and makes them available to end users over the Internet – Google apps, dropbox, slack
• Platform as Service -The Cloud provider delivers a platform to customers so they can develop, run, and manage software applications without the need to build and maintain the underlying infrastructure themselves.
• Infrastructure as Service -The Cloud provider offers essential compute, storage, and networking resources on demand – Digital Ocean, AWS
*See phone for pic

Question 13

Give examples of cloud platforms

Answer 13

1. Amazon Web Services (AWS)
2. Microsoft Azure
3. Google cloud
4. Heroku

Question 14

What are the typical features of cloud?

Answer 14

1. On-demand self-service - the network administrator can
   buy additional computing resource
2. Broad network access - access available using a wide
   variety of client devices, such as PCs, laptops, tablets,
   and smartphones
3. Resource pooling - computing capacity is shared among
   all its customers and can be assigned and reassigned based on customer demand
4. Rapid elasticity - resource allocation to customers can quickly expand or contract with demand
5. Measured service - resource usage can be easily controlled, reported, and billed to provide full visibility to
   both the Cloud service provider and customer

Question 15

What are the benefits of cloud computing?

Answer 15

1. Reduced cost – users only pay for the IT services they need, at
   the time they need it; without the expense of owning and maintaining software and hardware
2. Enhanced mobility – tools, apps and files are available anytime, anywhere there is internet access.
3. Scalability – Users/Companies can increase or decrease the size of their subscription, and always pay for what they need.
4. Automatic updates – The cloud provider will keep the tools and services up to date and therefore users will always have access to latest versions of any programs they subscribe to.
5. Quick way of communication among members.
6. Better disaster recovery since data or information is off-site.

Question 16

What are the Risks of using cloud computing

Answer 16

1. Dependence on the provider –the end user is very reliant on the
   provider maintaining, updating and securing these services and
   tools. Volume of data to be held is also determined by the provider.
2. Data protection and control – there is always a threat of unauthorized access to the data or malware issues.
3. Potential loss of privacy – this can happen when the
   company/client does not read the provider’s privacy policy to
   ensure that it limits use of any information and data held by them
   on behalf of end users.

Question 17

What are the types of mobile devices used for online collaboration

Answer 17

Smartphone

Tablet

Question 18

What are the examples of mobile OS?

Answer 18

Android
Windows phone
IOS
Blackberry

Question 19

What are the functions of bluetooth?

Answer 19

– Transfer information securely between devices
– To synchronize devices
– To connect a Bluetooth enabled phone to the internet
– To print to a Bluetooth enabled printer
– Bluetooth enabled mice, keyboards and headphones can be
used wirelessly

Question 20

What are mobile internet connection

options

Answer 20

1.Wireless(WLAN): Wireless technology allows devices to connect without being attached by cables
2.Mobile internet(3G, 4G): is a wireless standard that allows mobile devices to connect to the
internet wirelessly
3.MiFi: are small portable devices containing a modem and a Wi-Fi router which creates a
permanent Wi-Fi hotspot.