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A CCNA Wireless practice test

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CCNA Wireless Pre test

Questão 1 de 20

1

The IEEE 802.11n standard provides 40-MHz channels, improved MAC efficiency, and MIMO.
Which three elements define the 802.11n implementation of MIMO? (Choose three.)

Selecione uma ou mais das seguintes:

  • channel bonding

  • dynamic frequency selection

  • maximal ratio combining

  • packet aggregation

  • spatial multiplexing

  • transmit beam forming

Explicação

Questão 2 de 20

1

Which two statements about WiMAX technology are true? (Choose two.)

Selecione uma ou mais das seguintes:

  • WiMAX is defined by 802.11i

  • Typically, fixed WiMAX networks have a higher-gain directional antenna installed near the
    client

  • WiMAX is capable of working as a long-range system over several miles.

  • WiMAX works only for licensed frequencies.

Explicação

Questão 3 de 20

1

Which governing body analyzes the applications and environments in which wireless networks
are used?

Selecione uma ou mais das seguintes:

  • EIRP

  • ETSI

  • FCC

  • IEEE

  • WiFi Alliance

Explicação

Questão 4 de 20

1

Which description best describes upfade in a multipath environment?

Selecione uma ou mais das seguintes:

  • In this situation, multiple signal paths are not sent at exactly the same time. The receiver
    receives a positive crest on the primary signal and a negative crest on the secondary signal.

  • In this situation, the multiple signal paths are distorted and difficult to understand.

  • In this situation, the multiple signal paths are weaker than they should be because the
    signals are out of phase with each other

  • In this situation, the signal is stronger than it should be because multiple signal paths are
    received twice at exactly the same time, which results in the multiple signals being in-phase.

Explicação

Questão 5 de 20

1

A controller is connected to a Cisco Catalyst switch. The switch port configuration looks like this:
interface GigabitEthernet 1/0/10
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,20,30,50
switchport trunk native vlan 20
switchport mode trunk
Which controller CLI command assigns its management interface to the native VLAN interface of
the Cisco Catalyst switch?

Selecione uma ou mais das seguintes:

  • config interface vlan management 0

  • config interface vlan management 1

  • config interface vlan management 20

  • . config interface vlan management 30

  • config interface vlan management 50

Explicação

Questão 6 de 20

1

Which statement about an infrastructure basic service set is true according to IEEE 802.11
specifications?

Selecione uma ou mais das seguintes:

  • The set also is called an ad hoc network

  • The BSSID is generated from the first wireless client that starts up in the IBSS.

  • The set enables the use of ESS.

  • No signals are relayed from one client to another client.

Explicação

Questão 7 de 20

1

Which two factors must be considered when evaluating an RF interferer for severity?
(Choose two.)

Selecione uma ou mais das seguintes:

  • distance from the AP

  • dBm

  • the type of security crack being used

  • duty cycle

  • number of interfering IP stations in the cell

  • duplicate SSID

Explicação

Questão 8 de 20

1

Which two items are needed to discover the IP address of a new Cisco Aironet 1260 autonomous
AP that just finished booting? (Choose two.)

Selecione uma ou mais das seguintes:

  • username = "cisco" and password = "cisco"

  • username = "Admin" and password = "Cisco"

  • username=Cisco and password=Cisco

  • show int vlan1

  • show int bvi1

  • show int gigabitethernet0

  • show int radio0-802.11n

  • show int radio1-802.11n

Explicação

Questão 9 de 20

1

Which statement correctly describes the procedure for a lightweight AP to successfully establish
a connection to a controller?

Selecione uma ou mais das seguintes:

  • The AP authenticates the received Cisco WLC certificate as valid. The AP then sends its
    certificate to the controller.

  • The AP sends its certificate to the controller. The AP then authenticates the received Cisco
    WLC certificate as valid.

  • The AP sends its certificate to the RADIUS server. The AP then authenticates the controller
    certificate as valid.

  • . The AP sends its certificate to the RADIUS server. The AP then authenticates the RADIUS certificate as valid.

  • The AP authenticates the received RADIUS server certificate as valid. The AP then sends its
    certificate to the RADIUS server

  • The AP authenticates the received RADIUS server certificate as valid. The AP then sends its
    certificate to the controller

Explicação

Questão 10 de 20

1

Which two statements about the requirements to configure inter-controller roaming are true?
(Choose two.)

Selecione uma ou mais das seguintes:

  • The same mobility domain names are configured across controllers.

  • The same RF group names are configured across controllers.

  • The same controller hardware version is configured across controllers

  • The same AP manager interface is configured across controllers.

  • The same virtual interface is configured across controllers.

  • The same controller software version is configured across controllers.

Explicação

Questão 11 de 20

1

Which two statements best describe the LAG configuration between a Cisco WLC and a Cisco
Catalyst switch? (Choose two.)

Selecione uma ou mais das seguintes:

  • The Catalyst switch should be configured for PAgP.

  • The Catalyst switch should be configured only for Layer 2 load balancing.

  • The Catalyst switch should be configured for "on" mode

  • The Cisco WLC relies on the connected switch to perform the load-balance of traffic.

  • The Cisco WLC aggregates multiple management interfaces into a single virtual interface.

Explicação

Questão 12 de 20

1

Which two Cisco Unified Wireless Network capabilities use information that is provided by Radio
Resource Management neighbor messages in version 7.0 MR1? (Choose two.)

Selecione uma ou mais das seguintes:

  • aggressive load balancing

  • dynamic channel assignment

  • hybrid remote edge access point

  • inter-controller mobility (that is, mobility groups)

  • rogue AP classification

Explicação

Questão 13 de 20

1

The wireless network is using controller-based APs and version 7.0 MR1. The APs appear to be
connected properly to the controllers. A wireless user near one of the APs reports that they are
unable to connect to the network with their pre-shared key. Which option shows the GUI path
where you can check the connection status of that client?

Selecione uma ou mais das seguintes:

  • WLANs > WLAN_ID > Advanced

  • Security > Clients

  • Security > Advanced > Clients

  • Monitor > Clients

  • Wireless > 802.11b/g/n > clients

Explicação

Questão 14 de 20

1

You are about to use a hotel's guest wireless services using a wireless laptop. Which three items
do you need to establish a wireless connection? (Choose three.)

Selecione uma ou mais das seguintes:

  • SSID name

  • RF channel

  • RF signal

  • 802.1X/EAP credentials

  • pre-shared key

  • web page

  • WPA/WPA2 settings

Explicação

Questão 15 de 20

1

You have an Apple IOS iPhone4 that is used on your home Wi-Fi network and a personal laptop
that is used on your work's enterprise wireless network. At your office, you are unable to see the
enterprise wireless network on your iPhone4. What is the most likely cause of this issue?

Selecione uma ou mais das seguintes:

  • WPA2 CPU intensive encryption is not supported on the client.

  • WPA2 must be enabled on the client

  • A new profile must be created on the client.

  • Wi-Fi must be enabled on the client.

  • The enterprise is 2.4 GHz only

  • The enterprise is 5 GHz only

  • The RF channel must be adjusted on the client.

Explicação

Questão 16 de 20

1

When Cisco AnyConnect modules are installed on a PC, which module must be installed first?

Selecione uma ou mais das seguintes:

  • telemetry

  • web security

  • VPN

  • NAM

  • DART

  • posture

  • CSSC

Explicação

Questão 17 de 20

1

Which option lists the key features of Cisco Compatible Extensions v5?

Selecione uma ou mais das seguintes:

  • Roaming and real-time diagnostics, MFP, a diagnostic channel that allows troubleshooting of
    the client, client reporting, optional location service, and expedited bandwidth.

  • AP assisted roam, Cisco Centralized Key Management, radio measurements, and transmit
    power control.

  • CAC, UPSD, voice metrics, MBSSIDs, location, link tests, and NAC.

  • WME, proxy ARP, EAP-FAST, and WPA2, and single sign-on.

  • LEAP, WPA, 802.1x and VLANs per AP, TKIP, and WiFi.

Explicação

Questão 18 de 20

1

A client is attached to the Cisco Unified Wireless Network using controllers. When the client is
using WPA2 and EAP authentication, where are the wireless encryption keys located during the
active user session? (Choose two.)

Selecione uma ou mais das seguintes:

  • on the access point

  • on the RADIUS server

  • on the Cisco WCS

  • on the client

  • on the Cisco WLC

Explicação

Questão 19 de 20

1

Which Extensible Authentication Protocol types are supported by the Cisco Unified Wireless
Network?

Selecione uma ou mais das seguintes:

  • EAP-TLS, PEAP-MSCHAPv2, and PEAP-GTC only.

  • LEAP and EAP-FAST only.

  • EAP-TLS, PEAP-MSCHAPv2, PEAP-GTC, LEAP, and EAP-FAST only

  • Any EAP supported by the RADIUS authentication server.

Explicação

Questão 20 de 20

1

Which four parameters must be configured for local EAP-FAST on the controller? (Choose four.)

Selecione uma ou mais das seguintes:

  • authority ID

  • authority ID Information

  • client key

  • PAC

  • server key

  • TTL for PAC

  • monitor key

  • NTP source

Explicação

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