Chapter 7: Networks - Mobile Business

Question 1

What is attenuation?

Answer 1

Loss of network signal strength measured in decibels (dBs) and occurs because the transmissions gradually dissipate in strength over longer distances or because of radio interference or physical obstructions such as walls.

Question 2

What does a repeater do?

Answer 2

It receives and repeats a signal to reduce its attenuation and extend its range.

Question 3

What is a MAN?

Answer 3

Metropolitan Area Network. Large computer network, usually spanning a city. Colleges, universities, large companies use infrastructure supported by a MAN.

Question 4

What is mbusiness?

Answer 4

Mobile business/mcommerce. Ability to purchase goods + services through a wireless Internet-enabled device.

Question 5

What is bandwidth?

Answer 5

The maximum amount of data that can pass from one point to another in a unit of time.

Question 6

How is bandwidth measured?

Answer 6

In terms of bit rate (or data rate)

Question 7

What does Wi-Fi stand for?

Answer 7

Wireless fidelity

Question 8

What is the maximum range of Wi-Fi?

Answer 8

About 1000 feet in open areas and 250-400 feet in closed areas.

Question 9

What is Wifi 6?

Answer 9

Next generation of Wi-Fi expected to operate at 9.6 Gbps.

Question 10

What are the 4 categories of wireless networks?

Answer 10

PANs, WLANs, WMANs, WWANs

Question 11

Which type of wireless network does bluetooth use?

Answer 11

PAN - personal area network

Question 12

How does a WLAN work?

Answer 12

Uses radio signals to transmit and receive data over distances of a few hundred feet.

Question 13

What is an access point (AP)?

Answer 13

The computer or network device that serves as an interface between devices and the network.

Question 14

What is a wireless access point (WAP)?

Answer 14

Enables devices to connect to a wireless network to communicate with each other.

Question 15

What is multiple-in/multiple-out (MIMO) technology?

Answer 15

WAPs with this technology have multiple transmitters and receivers, allowing them to send and receive greater amounts of data than traditional networking devices.

Question 16

What is a WMAN?

Answer 16

Wireless MAN uses radio signals to transmit and receive data. WMAN technologies have not been highly successful because they are not widely available.

Question 17

What is WiMAX?

Answer 17

Worldwide Interoperability for Microwave Access. Operates like wifi but over greater distances with higher bandwidths. WiMAX towers can provide up to 3000 sq miles of coverage.

Question 18

What are the 2 categories of Wireless WANs (WWAN)?

Answer 18

Cellular communication systems and satellite communication systems.

Question 19

How fast is 5G compared to 4G?

Answer 19

1.5 Gpbs vs 100 Mbps

Question 20

What is Voice over LTE (VoLTE)?

Answer 20

Allows mobile voice calls to be made over broadband networks, creating clearer audio and fewer dropped calls.

Question 21

What is net neutrality?

Answer 21

Ensuring everyone has equal access to the Internet.

Question 22

What is SSL?

Answer 22

Secure sockets layer is a standard security technology for establishing an encrypted link between a web server and browser to ensure privacy.

Question 23

What does a web server require to create an SSL connection?

Answer 23

SSL certificate, an electronic document that confirms the identity of a website or server and verifies that it is trustworthy

Question 24

What is SHTTP or HTTPS?

Answer 24

Secure hypertext transfer protocol is a combination of HTTP and SSL to provide encryption and secure identification of an Internet server.

Question 25

What is WEP?

Answer 25

Wired equivalency privacy is an encryption algorithm designed to protect wireless transmission data when using a WiFi connection.

Question 26

What is WPA?

Answer 26

Wifi protected access. Wireless security protocol to protect wifi networks. It is an improvement on the original wifi security standard, WEP (wired equivalency privacy).

Question 27

What is IT consumerization?

Answer 27

The blending of personal and business use of tech devices and applications.

Question 28

What is pervasive computing?

Answer 28

Growing trend of embedding computer capabilities into every dya objects to make them effectively communicate and perform useful tasks in a way that minimizes the end user’s need to interact with computers as computers. (Smart watch, self-driving cars, etc.)

Question 29

What is the goal of pervasive computing?

Answer 29

To make devices “smart”

Question 30

What is Enterprise Mobility Management?

Answer 30

EMM is an enterprise wide security strategy to enforce corp policies while enabling employee use of mobile devices such as smart phones and tablets.

Question 31

What are the 3 primary areas of an enterprise mobility management strategy?

Answer 31

Mobile device mgmt, mobile application mgmt, mobile information mgmt

Question 32

What is mobile device mgmt (MDM)?

Answer 32

Security strategy comprised of products and services that offer remote support for mobile devices such as smart phones, laptops etc. Help to enforce epolicies for maintaining a desired level of MIS control across platforms and geographic locations.

Question 33

What are the 3 types of MDM device policies?

Answer 33

BYOD
CYOD (Choose your own device)
COPE (Company-issued, personally-enabled)

Question 34

What is Mobile Application Mgmt (MAM)?

Answer 34

Security strategy that administers and enforces corporate epolicies for applications on mobile devices.

Question 35

What is containerization?

Answer 35

An important feature of Mobile Application Management. Also called application sandboxing, isolates corp applications from personal applications on a device.

Question 36

What is dual persona technology?

Answer 36

An example of containerization which creates two completely separate user interfaces on the same device, one for work and one for personal use.

Question 37

What is a progressive web application?

Answer 37

A website that looks and behaves like a mobile app but is just a normal website.

Question 38

What is fast data?

Answer 38

Application of big data analytics to smaller datasets in near real or real time in order to solve a problem or create business value. Often associated with business intelligence.

Question 39

What is data at rest?

Answer 39

Data in computer storage.

Question 40

What is data in motion?

Answer 40

Data within RAM, data that’s being moved or transported between locations.

Question 41

What is data in use?

Answer 41

Data being updated, processed, erased, accessed, or read by a system.