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ENCOR > ENCOR_Wireless > Flashcards

ENCOR_Wireless Flashcards

1
Q
  1. Which DNS lookup does an access point perform when attempting CAPWAP discovery?

A. CISCO-DNA-CONTROILLER.local
B. CAPWAP-CONTROLLER.local
C. CISCO-CONTROLLER.local
D. CISCO-CAPWAP-CONTROLLER.local

A

D. CISCO-CAPWAP-CONTROLLER.local

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2
Q
  1. Which two pieces of information are necessary to compute SNR? (Choose two)

A. EIRP
B. noise floor
C. antenna gain
D. RSSI
E. transmit power

A

B. noise floor
D. RSSI

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3
Q
  1. Which statement about Cisco EAP-FAST is true?

A. It does not require a RADIUS server certificate
B. It requires a client certificate
C. It is an IETF standard.
D. It operates in transparent mode

A

A. It does not require a RADIUS server certificate

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4
Q
  1. What are two common sources of interference for WI-FI networks? (Choose two)

A. radar
B. LED lights
C. rogue AP
D. conventional oven
E. fire alarm

A

A. radar
C. rogue AP

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5
Q
  1. An engineer is configuring local web authentication on a WLAN. The engineer chooses the Authentication radio button under the Layer 3 Security options for Web Policy. Which device presents the web authentication for the WLAN?

A. ISE server
B. local WLC
C. RADIUS server
D. anchor WLC

A

B. local WLC

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6
Q
  1. Which two descriptions of FlexConnect mode for Cisco APs are true? (Choose two)

A. APs that operate in FlexConnect mode cannot detect rogue APs
B. FlexConnect mode is used when the APs are set up in a mesh environment and used to bridge between each other
C. FlexConnect mode is a feature that is designed to allow specified CAPWAP-enabled APs to exclude themselves from managing data traffic between clients and infrastructure
D. When connected to the controller, FlexConnect APs can tunnel traffic back to the controller
E. FlexConnect mode is a wireless solution for branch office and remote office deployments

A

D. When connected to the controller, FlexConnect APs can tunnel traffic back to the controller
E. FlexConnect mode is a wireless solution for branch office and remote office deployments

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7
Q
  1. When configuration WPA2 Enterprise on a WLAN, which additional security component configuration is required?

A. NTP server
B. PKI server
C. RADIUS server
D. TACACS server

A

C. RADIUS server

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8
Q
  1. An engineer configures a WLAN with fast transition enabled. Some legacy clients fail to connect to this WLAN. Which feature allows the legacy clients to connect while still allowing other clients to use fast transition based on their OLTIs?

A. over the DS
B. adaptive R
C. 802.11V
D. 802.11k

A

B. adaptive R

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9
Q
  1. To increase total throughput and redundancy on the links between the wireless controller and switch, the customer enabled LAG on the wireless controller. Which EtherChannel mode must be configured on the switch to allow the WLC to connect?

A. Auto
B. Active
C. On
D. Passive

A

C. On

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10
Q
  1. A client device fails to see the enterprise SSID, but other devices are connected to it. What is the cause of this issue?

A. The hidden SSID was not manually configured on the client.
B. The broadcast SSID was not manually configured on the client.
C. The client has incorrect credentials stored for the configured hidden SSID.
D. The client has incorrect credentials stored for the configured broadcast SSID.

A

A. The hidden SSID was not manually configured on the client.

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11
Q
  1. A customer has several small branches and wants to deploy a WI-FI solution with local management using CAPWAP. Which deployment model meets this requirement?

A. Autonomous
B. Mobility express
C. SD-Access wireless
D. Local mode

A

B. Mobility express

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12
Q
  1. Which two methods are used by an AP that is trying to discover a wireless LAN controller? (Choose two)

A. Cisco Discovery Protocol neighbor
B. broadcasting on the local subnet
C. DNS lookup cisco-DNA-PRIMARY.local domain
D. DHCP Option 43
E. querying other APs

A

B. broadcasting on the local subnet
D. DHCP Option 43

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13
Q
  1. When a wireless client roams between two different wireless controllers, a network connectivity outage is experience for a period of time. Which configuration issue would cause this problem?

A. Not all of the controllers in the mobility group are using the same mobility group name
B. Not all of the controllers within the mobility group are using the same virtual interface IP address
C. All of the controllers within the mobility group are using the same virtual interface IP address
D. All of the controllers in the mobility group are using the same mobility group name

A

B. Not all of the controllers within the mobility group are using the same virtual interface IP address

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14
Q
  1. Which access point mode allows a supported AP to function like a WLAN client would, associating and identifying client connectivity issues?

A. client mode
B. SE-connect mode
C. sensor mode
D. sniffer mode

A

C. sensor mode

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15
Q
  1. A client device roams between access points located on different floors in an atrium. The access points joined to the same controller and configuration in local mode. The access points are in different IP addresses, but the client VLAN in the group same. What type of roam occurs?

A. inter-controller
B. inter-subnet
C. intra-VLAN
D. intra-controller

A

D. intra-controller

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16
Q
  1. What does the LAP send when multiple WLCs respond to the CISCO-CAPWAP-CONTROLLER.localdomain hostname during the CAPWAP discovery and join process?

A. Broadcast discover request
B. Join request to all the WLCs
C. Unicast discovery request to each WLC
D. Unicast discovery request to the first WLC that resolves the domain name

A

C. unicast discovery request to each WLC

17
Q
  1. Wireless users report frequent disconnections from the wireless network. While troubleshooting a network engineer finds that after the user a disconnect, the connection reestablishes automatically without any input required. The engineer also notices these message logs.
    AP ‘AP2’ is down Reason: Radio channel set. 6:54:04 PM
    AP ‘AP4’ is down Reason: Radio channel set. 6:44:49 PM
    AP ‘AP7’ is down Reason: Radio channel set. 6:34:32 PM
    Which action reduces the user impact?

A. increase the dynamic channel assignment interval
B. increase BandSelect
C. increase the AP heartbeat timeout
D. enable coverage hole detection

A

A. increase the dynamic channel assignment interval

18
Q
  1. Which DHCP option helps lightweight APs find the IP address of a wireless LAN controller?

A. Option 43
B. Option 60
C. Option 67
D. Option 150

A

A. Option 43

19
Q
  1. What is calculated using the numerical values of the transmitter power level, cable loss and antenna gain?
    A. SNR
    B. RSSI
    C. dBi
    D. EIRP
A

D. EIRP

20
Q
  1. What is used to measure the total output energy of a Wi-Fi device?
    A. dBi
    B. EIRP
    C. mW
    D. dBm
A

C. mW

21
Q
  1. You are configuring a controller that runs Cisco IOS XE by using the CLI. Which three configuration options are used for 802.11w Protected Management Frames? (Choose three)

A. mandatory
B. association-comeback
C. SA teardown protection
D. saquery-retry-time
E. enable
F. comeback-time

A

A. mandatory
B. association-comeback
D. saquery-retry-time

22
Q
  1. Which antenna type should be used for a site-to-site wireless connection?
    A. Omnidirectional
    B. Yagi
    C. dipole
    D. patch
A

Answer: B

23
Q
  1. Using the EIRP formula, what parameter is subtracted to determine the EIRP value?

A. Antenna cable loss
B. Antenna gain
C. Transmitter power
D. Signal-to-noise ratio

A

A. Antenna cable loss

24
Q
  1. Which two sources cause interference for Wi-Fi networks? (Choose two)

A. mirrored wall
B. fish tank
C. 900MHz baby monitor
D. DECT 6.0 cordless
E. incandesent lights

A

A. mirrored wall
B. fish tank

25
Q
  1. What is the responsibility of a secondary WLC?

A. It shares the traffic load of the LAPs with the primary controller.
B. It avoids congestion on the primary controller by sharing the registration load on the LAPs.
C. It registers the LAPs if the primary controller fails.
D. It enables Layer 2 and Layer 3 roaming between itself and the primary controller.

A

D. It enables Layer 2 and Layer 3 roaming between itself and the primary controller.

26
Q
  1. Which DHCP option provides the CAPWAP APs with the address of the wireless controller(s)?

A. 43
B. 66
C. 69
D. 150

A

A. 43

27
Q
  1. A wireless consultant is designing a high-density wireless network for a lecture hall for 1000 students. Which antenna type is recommended for this environment?

A. sector antenna
B. dipole antenna
C. parabolic dish
D. omnidirectional antenna

A

D. omnidirectional antenna

ENCOR (12 decks)

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