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Wireless Networking > Wireless Networking > Flashcards

Wireless Networking Flashcards

1
Q

Frequency bands used by 802.11 networks include:

A
  1. 0 GHz

2. 4 Ghz

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2
Q

Which of the choices listed below would allow for setting up three Wireless Access Points (WAPs) on non-overlapping channels?

A

1,6,11

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3
Q

The term “Channel bonding” refers to a technique that allows for combining adjacent wireless channels to increase the amount of available bandwidth.

A

True

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4
Q

The IEEE 802.11a standard specifies a channel bandwidth of:

A

20 MHz

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5
Q

Which of the answers listed below refers to a channel bandwidth used in 802.11b networks?

A

22 Mhz

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6
Q

The IEEE 802.11g standard specifies a channel bandwidth of:

A

20 Mhz

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7
Q

The IEEE 802.11n standard specifies available channel bandwidth options of:

A

20 Mhz

40 Mhz

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8
Q

The IEEE 802.11ac standard specifies a maximum channel bandwidth of up to

A

160 Mhz

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9
Q

Which of the following answers refers to the IEEE 802.11ax maximum channel bandwidth?

A

160 MHz

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10
Q

Which of the following answers refers to the IEEE 802.11ax maximum channel bandwidth?

A

160 MHz

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11
Q

Multiple Input / Multiple Output (MIMO) is a wireless technology that allows for significant increase in data throughput due to the use of multiple antennas and multiple data streams.

A

True

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12
Q

Which of the following answers refers to the new feature introduced with the IEEE 802.11ac standard?

A

Multi-User MIMO (MU-MIMO)

Multiple Input / Multiple Output (MIMO)

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13
Q

Which of the answers listed below refer to the characteristic features of the IEEE 802.11a wireless standard?

A

Carrier Sense Multiple Access / Collision Avoidance (CSMA/CA) network access method
Maximum data signaling rate of 54 Mbps
5.0 GHz frequency band

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14
Q

Which of the following answers refer to the IEEE 802.11b wireless standard?

A

2.4 GHz frequency range
Maximum data signaling rate of 11 Mbps
Carrier Sense Multiple Access / Collision Avoidance (CSMA/CA) network access method

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15
Q

What are the characteristics of the IEEE 802.11g wireless standard?

A

Maximum data signaling rate of 54 Mbps
Carrier Sense Multiple Access / Collision Avoidance (CSMA/CA) network access method
2.4 GHz frequency range

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16
Q

The characteristic features of the IEEE 802.11n (WiFi 4) wireless standard include:

A

Multiple Input / Multiple Output (MIMO)
5.0 GHz frequency band
2.4 GHz frequency band
Maximum data signaling rate of up to 600 Mbps
Carrier Sense Multiple Access / Collision Avoidance (CSMA/CA) network access method

17
Q

Which of the following answers refers(s) to the feature(s) of the IEEE 802.11ac (WiFi 5) wireless standard?

A

Multi-User Multiple Input / Multiple Output (MU-MIMO)
Carrier Sense Multiple Access / Collision Avoidance (CSMA/CA) network access method
Maximum data signaling rate of up to 6.933 Gbps
5.0 GHz frequency band

18
Q

What are the characteristics of the IEEE 802.11ax (WiFi 6) wireless standard?

A

5.0 GHz frequency band
Multi-User Multiple Input / Multiple Output (MU-MIMO)
Maximum data signaling rate of up to 9.607 Gbps
2.4 GHz frequency band
Carrier Sense Multiple Access / Collision Avoidance (CSMA/CA) network access method

19
Q

Which of the following serves as a unique identifier for a WLAN (a wireless network name)?

A

SSID

20
Q

Which of the following answers refers to a wireless network using a single WAP?

A

BSS

21
Q

A wireless network operating in an infrastructure mode with the use of more than one WAP is referred to as:

A

ESS

22
Q

A wireless networking topology in which client devices communicate directly with each other without the use of a controlling Access Point (AP) is known as: (Select all that apply)

A

Ad-hoc mode
IBSS
Peer-to-peer mode

23
Q

Which of the following wireless network types enables roaming?

A

ESS

24
Q

Which wireless antenna type provides a 360-degree horizontal signal coverage?

A

Omnidirectional antenna

25
Q

Which of the following answers refers to a common antenna type used as a standard equipment on most Access Points (APs) for indoor Wireless Local Area Network (WLAN) deployments?

A

Omnidirectional antenna

26
Q

Which of the following answers refer(s) to a wireless antenna type(s) used for point-to-point links?

A

Dish antenna
Unidirectional antenna
Yagi antenna

27
Q

Which of the following wireless encryption schemes offers the highest level of protection?

A

WPA2

28
Q

Which of the cryptographic algorithms listed below is the least vulnerable to attacks?

A

AES

29
Q

Which of the following encryption schemes is used in WiFi Protected Access 2 (WPA2)?

A

AES-CCMP

30
Q

For a wireless client to be able to connect to a network, the security type (e.g. WEP, WPA or WPA2) and encryption type (e.g. TKIP or AES) settings on the connecting host must match the corresponding wireless security settings on a Wireless Access Point (WAP).

A

True

31
Q

Which of the following acronyms refers to a client authentication method used in WPA2 Personal mode?

A

PSK

32
Q

Which of the following would be the best solution for securing a small network lacking an authentication server?

A

WPA2-PSK

33
Q

What are the characteristic features of WPA/WPA2 Enterprise mode? (Select 2 answers)

A

Suitable for large corporate networks

Requires RADIUS authentication server

34
Q

Which of the following answers refer to the 2G/3G mobile telecommunications standards?

A

CDMA

GSM

35
Q

Long Term Evolution (LTE) is a wireless communications standard for mobile devices and wireless hotspots. LTE offers significant improvements in terms of speed when compared to the older generation of 3G cellular networks. LTE and its later revision LTE-Advanced (LTE-A) are often marketed as 4G standards.

A

True

36
Q

The latest standard for mobile telecommunications is known as:

A

5G

Wireless Networking (1 decks)

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