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Networking 1 - Module 4 > Lesson 15: Wireless Networks > Flashcards

Lesson 15: Wireless Networks Flashcards

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1
Q

Benefits of a wireless network: Access your network resources from any location within
your wireless network’s coverage area or from any Wi-Fi hotspot.

A

Convenience

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2
Q

Advantages of Wireless Networks

A
  • INCREASED MOBILITY
  • ENABLING BYOD
  • INCREASED PRODUCTIVITY
  • PUBLIC WI-FI - HOTSPOTS
  • SCALABILITY
  • GUEST USE
  • USING VOIP
  • WI-FI IS COST EFFECTIVE
  • HEALTH AND SAFETY
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3
Q

ACRONYM: WWANS

A

Wireless Wide Area Networks

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4
Q

These will allow the connectivity of personal devices within an area of about 30 feet.

A

WPANS: Wireless Personal Area Networks

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5
Q

ACRONYM: BYOD

A

Bring Your Own Device

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6
Q

These types of networks can be maintained over large areas, such as cities or countries, via multiple satellite systems or antenna sites looked after by an ISP.

A

WWANS: Wireless Wide Area Networks

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7
Q

The newest generation of Wi-Fi signaling in popular use,________________________utilizesdual-band wirelesstechnology, supporting simultaneous connections on both the 2.4 GHz and5 GHz Wi-Fi bands.

A

802.11ac

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8
Q

It uses radio waves to connect devices such as laptops and mobile phones to the Internet and to your business network
and its applications.

A

Wireless local-area network (LAN)

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9
Q

A type of networking protocol - it **defines the types of cables and
connections that are used to wire computers, switches, and routers
together.

A

Ethernet

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10
Q

This allows those devices to connect together directly,
without an Access Point in-between controlling the connection.

A

Ad-Hoc Node (Mesh)

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11
Q

Unfortunately, 802.11
only supported a maximumnetwork bandwidthof _____________ - too slow for most applications.

A

2 Mbps

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12
Q

ACRONYM: WI-FI

A

Wireless Fidelity

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13
Q

802.11a supports bandwidth up to 54 Mbps and signals in a regulated frequency spectrum around ______________.

A

5 GHz

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14
Q

ACRONYM: WPANS

A

Wireless Personal Area Networks

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15
Q

What year was the 802.11a and 802.11b introduced?

A

1999

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16
Q

Wireless Security: It is a network security technology commonly used onWi-Fiwireless networks.It follows the security method to WPA for wireless networks that provides stronger data protection and network access control.

A

WPA2 (W-Fi Protected Access 2)

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17
Q

Benefits of a wireless network: Wireless access to the Internet and to your company’s
key applications and resources helps your staff get the job done and
encourages collaboration.

A

Productivity

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18
Q

ACRONYM: IEEE

A

Institute of Electrical and Electronics Engineers

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19
Q

takes the principle of Point-to-Multipoint, and extends it to
the idea of every node connecting to every other node in range.

A

mesh network

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20
Q

ACRONYM: PCI

A

Peripheral Component Interconnect

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21
Q

Types of Wireless Network Technologies:

A
  • Wi-Fi
  • Bluetooth
  • 3Gand 4G cellular Internet
  • Wireless home automationstandards
  • 5Gcellular Internet
  • Li-Fi (Light Fidelity)
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22
Q

IT allows devices to stay connected to the network but roam
untethered to any wires.

A

Wireless network

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23
Q

Wireless Security: It is a security protocol for wireless local area networks (WLANs) defined in the802.11bstandard.

A

WEP (WiredEquivalentPrivacy)

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24
Q

was designed to improve on 802.11g in the amount of
bandwidth supported by utilizing multiple wireless signals and antennas (calledMIMOtechnology) instead of
one.

A

802.11n

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25
Types of Wireless Networks
* WLANS: Wireless Local Area Networks * WPANS: Wireless Personal Area Networks * WMANS: Wireless Metropolitan Area Networks * WWANS: Wireless Wide Area Networks
26
Devices such as computers, tablets, and phones are **common Clients on a network**.
Wireless Clients (Station)
27
Wireless Security: A  Wi-Fi  standard  that was **designed to improve upon the security features of WEP**.
WPA (W-Fi Protected Access)
28
Converts electrical signals to radio waves.
Antenna
29
Most wireless networks are made using **Access Points** - devices that host and control the wireless connection for laptops, tablets, or smart phones.
Access Points (Master)
30
sometimes a **stand- alone device that bridges between a wireless and wired (Ethernet) network**, or is part of a router.
Access Point
31
An advantage of wireless network is by far the biggest attraction that wireless networking holds for most businesses. Being **able to sit at any terminal, anywhere in the building and access the server is a great advantage**.
INCREASED MOBILITY
32
They are computer networks that are **not connected by cables of any kind**.
Wireless networks
33
In 2002 and 2003, WLAN products supporting a newer standard called __________________emerged on the market. ___________________ attempts to **combine the best of both 802.11a and 802.11b**.
802.11g 
34
ACRONYM: WMANS
Wireless Metropolitan Area Networks
35
An advantage of wireless network is there’s no such problem with a wireless network. Being **able to add new users is no more difficult** than having to issue a new password, and update the server accordingly.
SCALABILITY
36
Mbps of 802.11a?
54 Mbps
37
**supports bandwidth up to 54 Mbps** and signals in a regulated frequency spectrum around 5 GHz.
802.11a
38
In **1997**, the Institute of Electrical and Electronics Engineers (IEEE) created the first WLAN standard.
802.11
39
An advantage of wireless network is wireless networking has also gone into the public domain, with **Wi-Fi hotspots being available** in many high-street coffee shops, hotels, railway stations, airports, universities, hospitals, etc.
PUBLIC WI-FI - HOTSPOTS
40
Benefits of a wireless network: You don't have to string cables, so **installation can be quick and cost effective**.
Easy setup.
41
What year was the 802.11g introduced?
2003
42
Benefits of a wireless network?
- Convenience - Mobility - Productivity - Easy setup - Expandability - Security - Cost
43
Benefits of a wireless network: You're **not tied to your desk**, as you are with a wired connection.
Mobility
44
This technology allows the connection of **multiple networks in a metropolitan area** such as different buildings in a city, which can be an alternative or backup to laying copper or fiber cabling.
WMANS: Wireless Metropolitan Area Networks
45
The three wireless roles:
* Wireless Clients * Access Points * Ad-Hoc Node
46
They **amplify Wi-Fi signals**, so a device can be far from a router but still be connected to the network.
Access points
47
An advantage of wireless network is the increased mobility factor both enables and facilitates the **Bring Your Own Device (BYOD)** phenomenon, which more and more businesses are now taking advantage of.
ENABLING BYOD
48
allows a computing device to **join a wireless LAN**.
Wireless Network Adapter
49
Technology Frequency spectrum of **3G**:
* 850MHz * 900MHz * 1900MHz * 2100MHz
50
ACRONYM: WPA2
Wi-Fi Protected Access 2
51
An **individual device** in a mesh network.
Node
52
If we **combine the two principles used in the networks above** - many client devices connecting to an Access Point, and more powerful antennas used for outdoor devices to create longer links
Point to Multipoint
53
It **uses cables to connect devices, such as laptops or desktop computers**, to the internet or another network.
Wired network
54
A **long-distance connection** is often called
“point-to-point”,
55
Technology Frequency spectrum of **4G**:
* 800MHz * 1800MHz * 2600MHz
56
ACRONYM: WEP
Wired  Equivalent  Privacy
57
Mbps of 802.11n
300 Mbps
58
Allow users in a **local area**, such as a university campus or library, to form a network or gain access to the internet.
WLANS: Wireless Local Area Networks
59
An advantage of wireless network is because there are no wires involved with a wireless connection, the **potential risk of tripping over any trailing cables that wired connectivity requires, can be avoided altogether** .
HEALTH AND SAFETY
60
ACRONYM: WLANS
Wireless Local Area Networks
61
Mbps of 802.11g
54 Mbps
62
An advantage of wireless network is another important by-product of the **increased mobility factor is that it promotes increased productivity**, allowing employees to collaborate where and when they need to.
INCREASED PRODUCTIVITY
63
describes systems which **pass electrical power along with data on Ethernet cabling**.
PoE (Power over Ethernet)
64
**802.11a** supports bandwidth up to ___________________ and signals in a regulated frequency spectrum around 5 GHz.
54 Mbps
65
ACRONYM: USB
Universal Serial Bus
66
Mbps of 802.11b?
11 Mbps
67
When designing and building town or community-sized networks, it may be **difficult or impossible to use a single method to connect everyone**.
Hybrid Networks
68
a network device that **performs the functions of a router** but also includes the **functions of a wireless access point**.
wireless router
69
Benefits of a wireless network: Because wireless networks eliminate or reduce wiring expenses, they can **cost less** to operate than wired networks.
Cost.
70
uses the **same unregulated radio signaling frequency (2.4 GHz) as the original 802.11 standard**.
802.11b
71
refers to **a family of specifications** developed by the  IEEE  for  wireless  LAN (WLAN) technology.
802.11 and 802.11x
72
An advantage of wireless network is that it **can be used to make telephone calls using voice over Internet protocol**.
USING VOIP
73
Benefits of a wireless network: You can **easily expand wireless networks with existing equipment**, whereas a wired network might require additional wiring.
Expandability.
74
ACRONYM: AP
Access Point
75
Technology Frequency spectrum of **Bluetooth**
2400MHz
76
Benefits of a wireless network: Advances in wireless networks provide **robust security protections**.
Security
77
ACRONYM: VoIP
Voice Over Internet Protocol
78
ACRONYM: Li-Fi
Light Fidelity
79
ACRONYM: PoE
Power over Ethernet
80
What year was the 802.11n introduced?
2009
81
Technology Frequency spectrum of Wi-Fi
2400MHz, 5000MHz
82
An advantage of wireless network is using wireless technology rather than having a hard-wired network can be much **more cost-effective**.
WI-FI IS COST EFFECTIVE
83
ACRONYM: WPA
Wi-Fi Protected Access
84
An advantage of wireless network where it also **grants Internet access to visiting customers and suppliers**. It’s now something that most business people who have reason to travel, have come to expect.
GUEST USE
85
Mbps of 802.11ac
1300 Mbps for 5 GHz and 450 Mbps for 2.4 GHz
86
What year was the 802.11ac introduced?
2013

Networking 1 - Module 4 (4 decks)

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