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Wireless

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Wireless

Pregunta 1 de 52

1

QUESTION 1
In the current RF environment, the noise floor is -95 dBm. A tablet needs an SNR of 25 dB to transmit at the required speed. What must the RSSI cell edge be to
meet the required SNR?

Selecciona una de las siguientes respuestas posibles:

  • A. -120 dBm

  • B. -90 dBm

  • C. -70 dBm

  • D. -60 dBm

  • E. -50 dBm

Explicación

Pregunta 2 de 52

1

QUESTION 2
When deploying a Cisco Cloud Wireless Infrastructure, what two destination ports must be open? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

  • A. TCP/5246

  • B. UDP/5246

  • C. TCP/5247

  • D. UDP/5247

  • E. TCP/7351

  • F. UDP/7351

  • G. TCP/7734

  • H. UDP/7734

Explicación

Pregunta 3 de 52

1

QUESTION 3
A help desk engineer is attempting to perform a remote packet capture on the wireless network. Which access point mode is necessary to perform this function?

Selecciona una de las siguientes respuestas posibles:

  • A. sniffer

  • B. SE-Connect

  • D. rogue detector

  • E. FlexConnect

Explicación

Pregunta 4 de 52

1

QUESTION 4
An engineer has been asked to upgrade the FUS on the Wireless LAN controller. How can they monitor the status of the upgrade?

Selecciona una de las siguientes respuestas posibles:

  • A. WLC GUI

  • B. WLC CLI

  • C. WLC Console

  • D. WLC Management in Prime Infrastructure

Explicación

Pregunta 5 de 52

1

QUESTION 5
During a wireless site survey, the signal strength drops significantly when outside of the room containing the access point. The building is made of wood and
drywall. This is an example of which wireless anomaly?

Selecciona una de las siguientes respuestas posibles:

  • A. absorption

  • B. refraction

  • C. fading

  • D. multipath

  • E. reflection

Explicación

Pregunta 6 de 52

1

QUESTION 6
A wireless engineer has been asked to plan a deployment covering the aisles of a warehouse with optimal coverage while bleeding RF across aisles. Which
antenna type provides the necessary coverage?

Selecciona una de las siguientes respuestas posibles:

  • A. patch

  • B. omnidirectional

  • C. Yagi

  • D. parabolic dish

Explicación

Pregunta 7 de 52

1

QUESTION 7
Refer to the exhibit. The wireless engineer has deployed the Cisco 5508 Wireless Controller. The controller is responding on the service port; however, it will not respond on the management interface. Which configuration revision will fix the management interface?

Selecciona una de las siguientes respuestas posibles:

  • A. On the switch interface, configure switch(config-if)#switchport trunk allowed vlan add 10.

  • B. On the WLC management interface, disable LAG on the management network.

  • C. On the switch interface, configure switch(config-if)#switchport trunk allowed vlan 10.

  • D. On the WLC management interface, change the VLAN ID to 20.

  • E. On the switch interface, configure no spanning-tree portfast trunk.

  • F. On WLC Controller > General, disable LAG and reboot.

Explicación

Pregunta 8 de 52

1

QUESTION 8
A help desk ticket states that a wireless access point has not joined its controller and is flashing rapidly. How can the help desk administer the access point with the
default settings?

Selecciona una de las siguientes respuestas posibles:

  • A. console

  • B. SSH

  • C. Telnet

  • D. HTTP

  • E. HTTPS

Explicación

Pregunta 9 de 52

1

QUESTION 9
After you configure the Cisco 5508 Wireless Controller v7.6, a customer requests an SSID that allows for client web authentication with email input. Which
authentication method should be used?

Selecciona una de las siguientes respuestas posibles:

  • A. pass-through

  • B. authentication

  • C. splash page web redirect

  • D. conditional web redirect

  • E. on MAC filter failure

Explicación

Pregunta 10 de 52

1

QUESTION 10
Which two principles must be considered when deploying a wireless network through a wooded area? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

  • A. absorption

  • B. reflection

  • C. diffraction

  • D. scattering

  • E. refraction

Explicación

Pregunta 11 de 52

1

QUESTION 11
What is an interferer that an engineer may see in Cisco CleanAir?

Selecciona una de las siguientes respuestas posibles:

  • A. microwave ovens

  • B. rogue APs

  • C. malicious clients

  • D. co-channel interference

Explicación

Pregunta 12 de 52

1

QUESTION 12
A network engineer notices that two mesh APs are having problems communicating. After reviewing the current radio configurations, it is noted that one AP is
transmitting at 3 mW while the other is transmitting at 60 mW. How many decibels would the 3-mW AP need its power increased to match the 60-mW AP?

Selecciona una de las siguientes respuestas posibles:

  • A. 8

  • B. 12

  • C. 13

  • D. 20

  • E. 57

Explicación

Pregunta 13 de 52

1

QUESTION 13
A network engineer requires an antenna for a point-to-point bridge with at least 20 dBi of gain. Which antenna is appropriate for the task?

Selecciona una de las siguientes respuestas posibles:

  • A. Yagi

  • B. patch

  • C. parabolic dish

  • D. dipole

  • E. internal omnidirectional

Explicación

Pregunta 14 de 52

1

QUESTION 14
An engineer needs to find out the maximum EIRP allowed for their office in Asia. What regulatory body should be contacted?

Selecciona una de las siguientes respuestas posibles:

  • A. CRTC

  • B. ETSI

  • C. IEEE

  • D. NTT

Explicación

Pregunta 15 de 52

1

QUESTION 15
A wireless engineer has an access point using the 5.725-GHz channel in the United States. In which band is the AP operating?

Selecciona una de las siguientes respuestas posibles:

  • A. UNII-1

  • B. UNII-2

  • C. UNII-2 Extended

  • D. UNII-3

Explicación

Pregunta 16 de 52

1

QUESTION 16
Which RRM feature allows an access point to avoid non-IEEE 802.11 interference?

Selecciona una de las siguientes respuestas posibles:

  • A. DCA

  • B. TPC

  • C. RF groups

  • D. coverage hole detection

Explicación

Pregunta 17 de 52

1

QUESTION 17
Which IEEE 802.11n client feature can combine the signal from multiple antennas and radio chains to improve SNR?

Selecciona una de las siguientes respuestas posibles:

  • A. channel aggregation

  • B. spatial multiplexing

  • C. MAC layer efficiency

  • D. TxBF

  • E. MRC

  • F. MCS

Explicación

Pregunta 18 de 52

1

QUESTION 18
An engineer needs an AP with at least two spatial streams, four receivers, and three transmitters. Which device meets these requirements?

Selecciona una de las siguientes respuestas posibles:

  • A. 2x4:3

  • B. 2x3:4

  • C. 4x3:2

  • D. 3x4:2

Explicación

Pregunta 19 de 52

1

QUESTION 19
When using a Split MAC architecture, how many CAPWAP data tunnels will be built to an AP with four SSIDs across two VLANs?

Selecciona una de las siguientes respuestas posibles:

  • A. 1

  • B. 2

  • C. 3

  • D. 4

Explicación

Pregunta 20 de 52

1

QUESTION 20
A customer has ordered a Cisco 5760 Wireless Controller. What speed and quantity of ports are needed for full-speed operation?

Selecciona una de las siguientes respuestas posibles:

  • A. 6 x 1 Gb

  • B. 6 x 10 Gb

  • C. 2 x 10 Gb

  • D. 2 x 1 Gb

  • E. 8 x 1 Gb

  • F. 8 x 10 Gb

Explicación

Pregunta 21 de 52

1

QUESTION 21
Refer to the exhibit. A network administrator is attempting to connect to the GUI of a WLC with interfaces as shown. Which IP address should the network
administrator use?

Selecciona una de las siguientes respuestas posibles:

  • A. 192.168.0.2

  • B. 192.168.1.2

  • C. 192.168.2.2

  • D. 192.168.3.2

  • E. 192.168.4.2

Explicación

Pregunta 22 de 52

1

QUESTION 22
A network engineer is connected via wireless to a Cisco AireOS WLC and wants to download the configuration but is unable to do so. Which change will correct the
issue?

Selecciona una de las siguientes respuestas posibles:

  • A. enable management via wireless

  • B. connect via wired network

  • C. enable Telnet

  • D. enable WebAuth SecureWeb

  • E. connect on 5-GHz SSID

Explicación

Pregunta 23 de 52

1

QUESTION 23
A customer wants to deploy Cisco Cloud Wireless architecture with 802.11ac capabilities. Which two access points would meet the customers requirements?
(Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

  • A. Cisco 3700 Access Points

  • B. Cisco MR34 Access Points

  • C. Cisco MR18 Access Points

  • D. Cisco 3600 Access Points

  • E. Cisco MR72 Access Points

  • F. Cisco 1570 Access Points

  • G. Cisco MR26 Access Points

Explicación

Pregunta 24 de 52

1

QUESTION 24
An engineer is trying to convert the IP Address of the wireless controller to amend DHCP Option 43 configuration on the DHCP server. What mathematical format must the IP address of the Wireless controller be converted to in order to function correctly?

Selecciona una de las siguientes respuestas posibles:

  • A. Hexadecimal

  • B. Binary

  • C. Decimal

  • D. ASCII

Explicación

Pregunta 25 de 52

1

QUESTION 25
Refer to the exhibit. WLC1 becomes unresponsive due to a power failure at a customer site. How does the access point that is shown in the WLC controller GUI
behave now that WLC1 is disabled?

Selecciona una de las siguientes respuestas posibles:

  • A. associates to controller 10.201.204.6

  • B. associates to controller 10.201.204.11

  • C. associates to controller 10.201.204.8

  • D. associates to controller 10.201.204.19

Explicación

Pregunta 26 de 52

1

QUESTION 26
A customer wants to deploy a mesh network with 2 root access points and 10 mesh access points. The root access points should be configured as which mode on
the WLC?

Selecciona una de las siguientes respuestas posibles:

  • A. mesh

  • B. FlexConnect

  • C. bridge

  • D. rouge detection

  • E. sniffer

Explicación

Pregunta 27 de 52

1

QUESTION 27
A customer has completed the installation of an 802.11ac greenfield deployment at their corporate headquarters. They would like to leverage 802.11ac enhanced
speeds on the trusted employee WLAN. In order to configure the employee WLAN, what Layer 2 security policies are valid?

Selecciona una de las siguientes respuestas posibles:

  • A. WPA2 (TKIP)

  • B. WPA(AES)

  • C. OPEN

  • D. WEP

Explicación

Pregunta 28 de 52

1

QUESTION 28
A customer cannot access the GUI on the Cisco 5508 Wireless Controller from the management interface due to network failure. Which interface can the customer
use to access the WLC GUI until the network issues are resolved?

Selecciona una de las siguientes respuestas posibles:

  • A. virtual

  • B. dynamic

  • C. console port

  • D. service port

Explicación

Pregunta 29 de 52

1

QUESTION 29
Secure Web Mode
Refer to the exhibit. A customer is using central web authentication with a Cisco 5508 Wireless Controller and Cisco Identity Services Engine. An error occurs when
wireless clients are redirected to the hosted splash page. What is causing the client error?

Selecciona una de las siguientes respuestas posibles:

  • A. Secure Web Mode is disabled on the WLC.

  • B. OCSP is disabled on the WLC.

  • C. Management Via Dynamic Interface is disabled on the WLC.

  • D. Ethernet Multicast Forwarding is enabled on the WLC.

Explicación

Pregunta 30 de 52

1

QUESTION 30
A customer is using the access point GUI to upgrade the software on an autonomous access point to convert it to a lightweight access point. Which two transfer
protocols are valid for conducting this transfer from the WLC? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

  • A. FTP

  • B. RCP

  • C. SFTP

  • D. HTTP

  • E. SCP

  • F. TFTP

Explicación

Pregunta 31 de 52

1

QUESTION 31
An engineer wants to set up guest wireless that requires users to log in via a splash page prior to accessing the network. Which authentication method should be
configured?

Selecciona una de las siguientes respuestas posibles:

  • A. LDAP

  • B. RADIUS

  • C. local authentication

  • D. WebAuth

  • E. PSK

Explicación

Pregunta 32 de 52

1

QUESTION 32
An engineer would like to setup secure authentication for a wireless network that will utilize single sign-on. Which two authentication methods can be used to
accomplish this? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

  • A. LDAP

  • B. RADIUS

  • C. Local authentication

  • D. WEP

  • E. PSK

Explicación

Pregunta 33 de 52

1

QUESTION 33
An engineer wants to have users who connect to a WLAN be redirected to a terms-of-service page with the company logo and a login. What should be configured
on the WLAN to enable this capability?

Selecciona una de las siguientes respuestas posibles:

  • A. Layer 2 IEEE 802.1x

  • B. Web Policy Slash Page Web Redirect

  • C. Web Policy Authentication

  • D. AAA Servers

  • E. Web Policy Passthrough

Explicación

Pregunta 34 de 52

1

QUESTION 34
What suite of algorithms results in slower connection rates when using 802.11N technology?

Selecciona una de las siguientes respuestas posibles:

  • A. WPA2

  • B. CCMP

  • C. TKIP

  • D. AES

Explicación

Pregunta 35 de 52

1

QUESTION 35
An engineer assists a user in configuring an Android device for authentication to an IEEE 802.1x EAP WLAN with PEAPv1. The Phase 2 authentication should be
configured as which option?

Selecciona una de las siguientes respuestas posibles:

  • A. LEAP

  • B. MSCHAPv2

  • C. TLS

  • D. TTLS

Explicación

Pregunta 36 de 52

1

QUESTION 36
Refer to the exhibit. Which two wireless functions is the client experiencing? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

  • A. Inter-controller Roaming

  • B. Intra-controller Roaming

  • C. Layer 2 Roaming

  • D. Layer 3 Roaming

  • E. Inter-subnet roaming

Explicación

Pregunta 37 de 52

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QUESTION 37
What is the approximate time difference for a client to perform an intracontroller roam compared to an intercontroller roam?

Selecciona una de las siguientes respuestas posibles:

  • A. 1 ms

  • B. 10 ms

  • C. 20 ms

  • D. 30 ms

Explicación

Pregunta 38 de 52

1

QUESTION 38
Which two attributes must be configured to match in order for WLCs to operate in the same mobility group? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

  • A. mobility domain name

  • B. virtual IP address

  • C. service interface address

  • D. hardware model

  • E. software version

Explicación

Pregunta 39 de 52

1

QUESTION 39
Which operating mode is valid for controllers in a converged access architecture?

Selecciona una de las siguientes respuestas posibles:

  • A. switch peer groups

  • B. mobility controller

  • C. auto-anchor

  • D. foreign anchor

Explicación

Pregunta 40 de 52

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QUESTION 40
An engineer wants to deploy a 2504 controller as the anchor controller for a guest WLAN that resides on a 5508 controller in a different mobility group. What
configuration change must be applied to support this deployment strategy?

Selecciona una de las siguientes respuestas posibles:

  • A. UDP 16666 and IP Protocol 97 must be enabled on the 2504 controller

  • B. UDP 5246 and TCP Protocol 97 must be enabled on the router

  • C. The 2504 controller must be added to the same mobility group as the 5508.

  • D. DHCP Option 43 must be added to the neighboring switchport

Explicación

Pregunta 41 de 52

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QUESTION 41
Which interface is used to connect the foreign and anchor controllers?

Selecciona una de las siguientes respuestas posibles:

  • A. management

  • B. service

  • C. virtual

  • D. dynamic

Explicación

Pregunta 42 de 52

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QUESTION 42
A customer has a corporate SSID that is configured to authenticate against an ACS server to validate client credentials on the corporate SSID. The customer has a
firewall logically positioned on the network between the WLC and the ACS server in the network architecture. Which port must the firewall allow to ensure that
authentication can occur?

Selecciona una de las siguientes respuestas posibles:

  • A. 43

  • B. 1812

  • C. 5146

  • D. 8143

Explicación

Pregunta 43 de 52

1

QUESTION 43
Refer to the exhibit. An engineer is configuring a SSID to utilize the management interface on the WLC. The management interface is configured with an untagged
VLAN in the wireless controller interface settings. The controller is connected to a neighboring switch via the interface shown in the diagram.
Which VLAN will traffic coming from the newly created SSID use to traverse the wired network?

Selecciona una de las siguientes respuestas posibles:

  • A. 1

  • B. 20

  • C. 44

  • D. 50

Explicación

Pregunta 44 de 52

1

QUESTION 44
During an upgrade, the wireless infrastructure has seen a few access points join and then drop off the network. After further investigation, it appears the access
points may have an IOS code version that is causing issues. Where in the controller is this information found?

Selecciona una de las siguientes respuestas posibles:

  • A. GUI > Wireless > Access Point > General

  • B. CLI > show ap image all

  • C. GUI > Monitor > Software Version

  • D. CLI > show sysinfo

Explicación

Pregunta 45 de 52

1

QUESTION 45
An engineer is trying to determine from the controller CLI whether or not Telnet is enabled on the wireless controller. Which command can be entered to display this
information?

Selecciona una de las siguientes respuestas posibles:

  • A. show network summary

  • B. show aaa auth

  • C. show radius summary

  • D. show ldap statistics

Explicación

Pregunta 46 de 52

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QUESTION 46
An engineer is trying to identify if radar has impacted the wireless network at a customer site. When using the controller GUI, which dashboard in the Monitor
section presents this information?

Selecciona una de las siguientes respuestas posibles:

  • A. 802.11a/n - Air Quality Reports

  • B. Clean Air - Worst Air Quality Report

  • C. 802.11b/g/n - Interfering Devices

  • D. Statistics - Mobility Statistics

Explicación

Pregunta 47 de 52

1

QUESTION 47
Refer to the exhibit. A customer is determining whether a Windows 7 laptop is operating on the correct IEEE 802.11 standard. Which standard is being used by the
laptop in the exhibit?

Selecciona una de las siguientes respuestas posibles:

  • A. 802.11b

  • B. 802.11g

  • C. 802.11n

  • D. 802.11p

Explicación

Pregunta 48 de 52

1

QUESTION 48
An engineer is using a predictive survey tool to estimate placement of APs in a carpeted office space. Most interior walls should be assigned which attenuation
value?

Selecciona una de las siguientes respuestas posibles:

  • A. 2 dB

  • B. 3 dB

  • C. 4 dB

  • D. 5 dB

Explicación

Pregunta 49 de 52

1

QUESTION 49
An engineer is conducting an active survey for indoor coverage in a warehouse. The warehouse has long aisles with racks that extend to the ceiling. Which antenna
type has a radiation pattern that is suited to provide coverage in each aisle?

Selecciona una de las siguientes respuestas posibles:

  • A. Yagi

  • B. patch

  • C. omnidirectional

  • D. dipole

Explicación

Pregunta 50 de 52

1

QUESTION 50
Following the deployment of a wireless network for data and voice services, an engineer is to validate the coverage. Which type of survey is required to ensure
coverage?

Selecciona una de las siguientes respuestas posibles:

  • A. passive

  • B. active

  • C. fingerprinting

  • D. calibrating

Explicación

Pregunta 51 de 52

1

QUESTION 51
During the deployment of a wireless network for data and location services, an engineer is to fine-tune the location services. What is this type of survey called?

Selecciona una de las siguientes respuestas posibles:

  • A. passive fingerprinting

  • B. passive calibrating

  • C. active fingerprinting

  • D. active calibrating

Explicación

Pregunta 52 de 52

1

QUESTION 52
Refer to the exhibit. In an effort to identify RF characteristics at a customer location, an RF engineer uses the Spectrum Analyzer tool that is shown. Which feature
that is native to the Spectrum Analyzer is identified by the exhibit?

Selecciona una de las siguientes respuestas posibles:

  • A. Real-Time FFT

  • B. Duty Cycle

  • C. Max Hold

  • D. Time Domain

Explicación