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Wireless

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Wireless
Cesar-Inn 2.0
Quiz por Cesar-Inn 2.0, atualizado more than 1 year ago
Cesar-Inn 2.0
Criado por Cesar-Inn 2.0 quase 8 anos atrás
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Resumo de Recurso

Questão 1

Questão
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?
Responda
  • A. -120 dBm
  • B. -90 dBm
  • C. -70 dBm
  • D. -60 dBm
  • E. -50 dBm

Questão 2

Questão
QUESTION 2 When deploying a Cisco Cloud Wireless Infrastructure, what two destination ports must be open? (Choose two.)
Responda
  • A. TCP/5246
  • B. UDP/5246
  • C. TCP/5247
  • D. UDP/5247
  • E. TCP/7351
  • F. UDP/7351
  • G. TCP/7734
  • H. UDP/7734

Questão 3

Questão
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?
Responda
  • A. sniffer
  • B. SE-Connect
  • D. rogue detector
  • E. FlexConnect

Questão 4

Questão
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?
Responda
  • A. WLC GUI
  • B. WLC CLI
  • C. WLC Console
  • D. WLC Management in Prime Infrastructure

Questão 5

Questão
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?
Responda
  • A. absorption
  • B. refraction
  • C. fading
  • D. multipath
  • E. reflection

Questão 6

Questão
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?
Responda
  • A. patch
  • B. omnidirectional
  • C. Yagi
  • D. parabolic dish

Questão 7

Questão
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?
Responda
  • 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.

Questão 8

Questão
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?
Responda
  • A. console
  • B. SSH
  • C. Telnet
  • D. HTTP
  • E. HTTPS

Questão 9

Questão
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?
Responda
  • A. pass-through
  • B. authentication
  • C. splash page web redirect
  • D. conditional web redirect
  • E. on MAC filter failure

Questão 10

Questão
QUESTION 10 Which two principles must be considered when deploying a wireless network through a wooded area? (Choose two.)
Responda
  • A. absorption
  • B. reflection
  • C. diffraction
  • D. scattering
  • E. refraction

Questão 11

Questão
QUESTION 11 What is an interferer that an engineer may see in Cisco CleanAir?
Responda
  • A. microwave ovens
  • B. rogue APs
  • C. malicious clients
  • D. co-channel interference

Questão 12

Questão
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?
Responda
  • A. 8
  • B. 12
  • C. 13
  • D. 20
  • E. 57

Questão 13

Questão
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?
Responda
  • A. Yagi
  • B. patch
  • C. parabolic dish
  • D. dipole
  • E. internal omnidirectional

Questão 14

Questão
QUESTION 14 An engineer needs to find out the maximum EIRP allowed for their office in Asia. What regulatory body should be contacted?
Responda
  • A. CRTC
  • B. ETSI
  • C. IEEE
  • D. NTT

Questão 15

Questão
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?
Responda
  • A. UNII-1
  • B. UNII-2
  • C. UNII-2 Extended
  • D. UNII-3

Questão 16

Questão
QUESTION 16 Which RRM feature allows an access point to avoid non-IEEE 802.11 interference?
Responda
  • A. DCA
  • B. TPC
  • C. RF groups
  • D. coverage hole detection

Questão 17

Questão
QUESTION 17 Which IEEE 802.11n client feature can combine the signal from multiple antennas and radio chains to improve SNR?
Responda
  • A. channel aggregation
  • B. spatial multiplexing
  • C. MAC layer efficiency
  • D. TxBF
  • E. MRC
  • F. MCS

Questão 18

Questão
QUESTION 18 An engineer needs an AP with at least two spatial streams, four receivers, and three transmitters. Which device meets these requirements?
Responda
  • A. 2x4:3
  • B. 2x3:4
  • C. 4x3:2
  • D. 3x4:2

Questão 19

Questão
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?
Responda
  • A. 1
  • B. 2
  • C. 3
  • D. 4

Questão 20

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

Questão 21

Questão
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?
Responda
  • 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

Questão 22

Questão
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?
Responda
  • A. enable management via wireless
  • B. connect via wired network
  • C. enable Telnet
  • D. enable WebAuth SecureWeb
  • E. connect on 5-GHz SSID

Questão 23

Questão
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.)
Responda
  • 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

Questão 24

Questão
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?
Responda
  • A. Hexadecimal
  • B. Binary
  • C. Decimal
  • D. ASCII

Questão 25

Questão
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?
Responda
  • 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

Questão 26

Questão
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?
Responda
  • A. mesh
  • B. FlexConnect
  • C. bridge
  • D. rouge detection
  • E. sniffer

Questão 27

Questão
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?
Responda
  • A. WPA2 (TKIP)
  • B. WPA(AES)
  • C. OPEN
  • D. WEP

Questão 28

Questão
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?
Responda
  • A. virtual
  • B. dynamic
  • C. console port
  • D. service port

Questão 29

Questão
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?
Responda
  • 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.

Questão 30

Questão
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.)
Responda
  • A. FTP
  • B. RCP
  • C. SFTP
  • D. HTTP
  • E. SCP
  • F. TFTP

Questão 31

Questão
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?
Responda
  • A. LDAP
  • B. RADIUS
  • C. local authentication
  • D. WebAuth
  • E. PSK

Questão 32

Questão
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.)
Responda
  • A. LDAP
  • B. RADIUS
  • C. Local authentication
  • D. WEP
  • E. PSK

Questão 33

Questão
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?
Responda
  • A. Layer 2 IEEE 802.1x
  • B. Web Policy Slash Page Web Redirect
  • C. Web Policy Authentication
  • D. AAA Servers
  • E. Web Policy Passthrough

Questão 34

Questão
QUESTION 34 What suite of algorithms results in slower connection rates when using 802.11N technology?
Responda
  • A. WPA2
  • B. CCMP
  • C. TKIP
  • D. AES

Questão 35

Questão
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?
Responda
  • A. LEAP
  • B. MSCHAPv2
  • C. TLS
  • D. TTLS

Questão 36

Questão
QUESTION 36 Refer to the exhibit. Which two wireless functions is the client experiencing? (Choose two.)
Responda
  • A. Inter-controller Roaming
  • B. Intra-controller Roaming
  • C. Layer 2 Roaming
  • D. Layer 3 Roaming
  • E. Inter-subnet roaming

Questão 37

Questão
QUESTION 37 What is the approximate time difference for a client to perform an intracontroller roam compared to an intercontroller roam?
Responda
  • A. 1 ms
  • B. 10 ms
  • C. 20 ms
  • D. 30 ms

Questão 38

Questão
QUESTION 38 Which two attributes must be configured to match in order for WLCs to operate in the same mobility group? (Choose two.)
Responda
  • A. mobility domain name
  • B. virtual IP address
  • C. service interface address
  • D. hardware model
  • E. software version

Questão 39

Questão
QUESTION 39 Which operating mode is valid for controllers in a converged access architecture?
Responda
  • A. switch peer groups
  • B. mobility controller
  • C. auto-anchor
  • D. foreign anchor

Questão 40

Questão
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?
Responda
  • 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

Questão 41

Questão
QUESTION 41 Which interface is used to connect the foreign and anchor controllers?
Responda
  • A. management
  • B. service
  • C. virtual
  • D. dynamic

Questão 42

Questão
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?
Responda
  • A. 43
  • B. 1812
  • C. 5146
  • D. 8143

Questão 43

Questão
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?
Responda
  • A. 1
  • B. 20
  • C. 44
  • D. 50

Questão 44

Questão
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?
Responda
  • A. GUI > Wireless > Access Point > General
  • B. CLI > show ap image all
  • C. GUI > Monitor > Software Version
  • D. CLI > show sysinfo

Questão 45

Questão
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?
Responda
  • A. show network summary
  • B. show aaa auth
  • C. show radius summary
  • D. show ldap statistics

Questão 46

Questão
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?
Responda
  • 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

Questão 47

Questão
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?
Responda
  • A. 802.11b
  • B. 802.11g
  • C. 802.11n
  • D. 802.11p

Questão 48

Questão
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?
Responda
  • A. 2 dB
  • B. 3 dB
  • C. 4 dB
  • D. 5 dB

Questão 49

Questão
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?
Responda
  • A. Yagi
  • B. patch
  • C. omnidirectional
  • D. dipole

Questão 50

Questão
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?
Responda
  • A. passive
  • B. active
  • C. fingerprinting
  • D. calibrating

Questão 51

Questão
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?
Responda
  • A. passive fingerprinting
  • B. passive calibrating
  • C. active fingerprinting
  • D. active calibrating

Questão 52

Questão
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?
Responda
  • A. Real-Time FFT
  • B. Duty Cycle
  • C. Max Hold
  • D. Time Domain

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