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Wireless Architectures Flashcards

1
Q

An […] WLC is integrated within a switch.

A

Embedded

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2
Q

A […] WLC is integrated within an AP.

A

Mobility Express

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3
Q

A […] WLC is a VM running on a server, usually in a private cloud in a data center.

A

Cloud-based

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4
Q

A […] WLC is a hardware appliance in a central location of the network.

A

Unified

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5
Q

A Mobility Express WLC can support about […] APs.

A

100

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6
Q

An Embedded WLC can support about […] APs.

A

200

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7
Q

A Cloud-based WLC can support about […] APs.

A

3000

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8
Q

A Unified WLC can support about […] APs.

A

6000

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9
Q

[…] AP architecure is between autonomous AP and split-MAC architecture in terms of functionality.

A

Cloud-based

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10
Q

Cisco […] is a popular cloud-based AP solution.

A

Meraki

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11
Q

Which lightweight AP operating mode adds FlexConnect functionality to the Bridge/Mesh mode?

A

Flex plus Bridge

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12
Q

Which lightweight AP operating mode can form a dedicated bridge between sites?

A

Bridge/Mesh
(a mesh can be formed between the APs)

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13
Q

Which lightweight AP operating mode is dedicated to RF spectrum analysis on all channels?

A

SE-Connect

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14
Q

Which lightweight AP operating mode is dedicated to listening to traffic on the wired network to detect rogue devices? (it does not use its radio)

A

Rogue Detector

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15
Q

Which lightweight AP operating mode is dedicated to receiving 802.11 frames to detect rogue devices?

A

Monitor

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16
Q

Which lightweight AP operating mode is dedicated to capturing 802.11 frames and sending them to a device running software such as Wireshark?

A

Sniffer

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17
Q

What is the default operating mode of a lightweight AP, in which it offers a BSS for clients?

A

Local

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18
Q

Which feature allows a lightweight AP to locally switch traffic if the tunnels to the WLC go down?

A

FlexConnect

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19
Q

Lightweight APs connect to a switch via [access/trunk] ports.

A

access

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20
Q

The CAPWAP data tunnel [is/isn’t] encrypted by default.

A

isn’t

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21
Q

The CAPWAP control tunnel [is/isn’t] encrypted by default.

A

is

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22
Q

The CAPWAP […] tunnel isn’t encrypted by default.

A

data

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23
Q

The CAPWAP […] tunnel is encrypted by default.

24
Q

How many CAPWAP tunnels does a lightweight AP form with the WLC?

A

2 (control and data)

25
Q

CAPWAP Data tunnels use UDP port […].

26
Q

CAPWAP Data tunnels use […] port 5247.

27
Q

CAPWAP […] tunnels use UDP port 5247.

28
Q

CAPWAP Control tunnels use UDP port […].

29
Q

CAPWAP Control tunnels use […] port 5246.

30
Q

CAPWAP […] tunnels use UDP port 5246.

31
Q

What does LWAPP stand for?

A

Lightweight Access Point Protocol

32
Q

What does CAPWAP stand for?

A

Control and Provisioning of Wireless Access Points

33
Q

What does WLC stand for?

A

Wireless LAN Controller

34
Q

The use of lightweight APs and WLCs is also known as […] architecture.

35
Q

Autonomous APs connect to a switch via [access/trunk] ports.

36
Q

[…] APs are self-contained systems that don’t rely on a WLC.

A

Autonomous

37
Q

What are the three main wireless AP deployment methods? (three architectures)

A

Autonomous
Lightweight
Cloud-based

38
Q

What 802.11 message type?
ACK

39
Q

What 802.11 message type?
CTS

40
Q

What 802.11 message type?
RTS

41
Q

What 802.11 message type?
Association response

A

Management

42
Q

What 802.11 message type?
Association request

A

Management

43
Q

What 802.11 message type?
Authentication

A

Management

44
Q

What 802.11 message type?
Probe response

A

Management

45
Q

What 802.11 message type?
Probe request

A

Management

46
Q

What 802.11 message type?
Beacon

A

Management

47
Q

What are the three 802.11 message types?

A

Management
Control
Data

48
Q

Which messages does a wireless station listen for when doing 802.11 passive scanning?

49
Q

Which two messages are used for 802.11 active scanning?

A

Probe request
Probe response

50
Q

There are three 802.11 connection states:
1: […]
2: […]
3: […]

A

1: Not Authenticated, not Associated.
2: Authenticated, not Associated.
3: Authenticated and Associated.

51
Q

802.11 Frame ‘FCS’ field length:

52
Q

802.11 Frame ‘HT Control’ field length:

53
Q

802.11 Frame ‘QoS Control’ field length:

54
Q

802.11 Frame ‘Sequence Control’ field length:

55
Q

802.11 Frame ‘Address 1/2/3/4’ field length:

A

6 bytes (per address)

56
Q

802.11 Frame ‘Duration/ID’ field length:

57
Q

802.11 Frame ‘Frame Control’ field length:

CCNA (37 decks)

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