Deck 7: WLAN Management and Architectures

Question 1

Which of the following is true of wireless VLANs in which the AP is responsible for separating packets for the correct VLAN?

A) different VLANs are transmitted by the AP on the same IP subnet
B) different VLANs are transmitted by the AP on different subnets
C) different VLANs are transmitted by the AP on the same SSID
D) different VLANs are transmitted by the AP on different SSIDs

Answer 1

D

Question 2

The capability to prioritize different types of frames is known as which of the following?

A) wireless virtual LAN
B) distributed coordinated function
C) quality of service
D) priority trunking method

Answer 2

C

Question 3

Which is NOT an advantage of single channel architecture?

A) smoother handoffs
B) less planning needed for location and AP configuration
C) AP coverage does not overlap
D) no cochannel interference

Answer 3

C

Question 4

In an 802.11b network,which channels are nonoverlapping?

A) 1,5,9
B) 1,6,11
C) 1,7,13
D) 1,8,15

Question 5

Which network area are you likely to find LAN routers and Layer 3 switches?

A) control layer
B) backbone layer
C) access layer
D) workgroup layer

Question 6

A WLC is at the heart of a controller-based architecture.

Question 7

Which wired device is a WLC most similar to?

A) multiport repeater
B) core router
C) managed switch
D) translation bridge

Question 8

Which of the following are NOT enhanced power management technologies?

A) continuous aware mode
B) unscheduled automatic power save delivery
C) power save multi-poll
D) spatial multiplexing power save

Question 9

Which technology works by inserting a tag header within the existing Ethernet packet?

A) enhanced distributed channel access
B) 802.1Q trunking
C) Wi-Fi Multimedia
D) Point Coordinated Function

Question 10

BSS and ESS service set configurations remain the preferred choice for homes and SOHOs.

Question 11

What happens when an AP sends a DTIM?

A) only stations in continuously aware mode receive it
B) stations in power save mode ignore it
C) only stations in sleep mode receive it
D) all stations change to active mode

Question 12

A thin access point is one in which the intelligence for wireless management is contained within the AP itself.

Question 13

What should you deploy if you manage a public hotspot and want users to agree to a policy or present credentials before using the WLAN?

A) wireless LAN controller
B) captive portal AP
C) lightweight mesh AP
D) WLAN array

Question 14

In a controller-based architecture lightweight access points are replaced by autonomous APs.

Question 15

Which is a disadvantage of using autonomous APs?

A) adding a new AP to an existing WLAN may require multiple AP configurations
B) they have been the foundation of WLANs for several years
C) scalability is impossible
D) many additional devices are required to manage them

Question 16

Which type of wireless network uses the ATIM window?

A) BSS
B) IBSS
C) ESS
D) WVLAN

Question 17

A DCF contention method is designed to provide priority handling to certain types of traffic.

Question 18

Which system allows APs and other network equipment to be connected through the Internet and managed from one central location?

A) cloud management
B) cooperative control
C) WLAN array
D) mesh network

Question 19

Which is true of a wireless mesh network?

A) they use only autonomous APs
B) each AP communicates directly to the wired network
C) only one AP must be connected to the wired network
D) a maximum of 10 APs can be on each network

Question 20

A distributed WLAN architecture can be described as which of the following?

A) a BSS composed of two or more ESS networks
B) an ESS that uses multiple autonomous access points
C) an IBSS that uses a single centrally managed fat AP
D) multiple ad-hoc networks combined to form one large network

Question 21

What is a service set and list the three WLAN service set configurations.

Question 22

Briefly describe a virtual local area network.

Question 23

Briefly describe a lightweight access point.

Question 24

Describe the two way in which wireless VLANs can be configured?

Question 25

The ______________ layer is considered the backbone of the network and includes high-end switches and high-speed fiber cables.

Question 26

Which power management technology is designed to be used with MIMO devices?

A) WMM-PS
B) SMPS
C) PSMP
D) U-APSD

Question 27

In a(n)__________________ WLAN architecture,multiple APs form a non-centralized network.

Question 28

A(n)_______________ access point has built-in intelligence for wireless management,authentication,and encryption.

Question 29

Which of the following are among the four recognized solutions to quality of service on wireless LANs? (Choose all that apply.)

A) combined dual-band
B) WMM
C) EDCA
D) open QoS

Question 30

Name and describe the three functional areas,or layers,of a network.

Question 31

Which of the following are recognized functional areas of a network? (Choose all that apply.)

A) core layer
B) distribution layer
C) segmentation layer
D) access layer

Question 32

Which are features of a wireless network management system? (Choose all that apply.)

A) wireless routing
B) device monitoring
C) intelligent scheduling
D) channel stacking

Question 33

List four of the typical feature sets found in autonomous APs.

Question 34

Access points that support wireless ______________ may support 16 or more multiple SSIDs.

Question 35

The capability to prioritize different types of frame is know as _________________.

Question 36

What are the advantages and limitations of autonomous access points?

Question 37

Which of the following are types of APs found in a controller-based architecture? (Choose all that apply.)

A) mesh
B) autonomous
C) captive portal
D) stand-alone

Question 38

Define the WLAN profile feature provided by WLCs.

Question 39

What is a captive portal AP used for?

Question 40

Describe how single channel architectures provide smoother handoffs compared to MCAs.