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Exam Code: 640-722 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: CCNA - Wireless Associate - IUWNE
Certification Provider: Cisco
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2021 Oct ccna wireless 640-722 study guide:
Q161. - (Topic 2)
Which action secures the SNMPv2C protocol in a Cisco WLC?
A. configure new communities and disable default communities
B. use digital certificates to authenticate and encrypt transmissions
C. enable password or transfer encryption
D. set a username and difficult-to-guess password
Answer: A
Explanation:
See the SNMP configuration for Cisco WLC page shown in reference link below:
Reference: http://www.cisco.com/c/en/us/td/docs/wireless/controller/7-4/configuration/guides/consolidated/b_cg74_CONSOLIDATED/b_cg74_CONSOLIDATED_ chapter_0111.html
Q162. - (Topic 7)
Refer to the exhibit.
Based on the diagram, what two design requirements must be met? (Choose two.)
A. WGB is Autonomous
B. WGB is Universal
C. WGB can be Autonomous or Universal
D. Upstream AP is Aironet
E. Upstream AP is not Aironet
F. Upstream AP can be any make/model
Answer: A,D
Q163. - (Topic 7)
An engineer has been noticing the power settings on several of the office APs change from day to day ever since two more APs were installed. After logging into the WLC, the engineer verifies that the power levels on 4 of the 802.11n radios are fluctuating up and down. What is the reason for this?
A. The controller has the APs in H-REAP mode and are on a Layer 2 connection instead of Layer 3.
B. The RRM has revealed a bad survey and is attempting to power down some of the radios to make up for it.
C. The WLC has created temporary coverage holes while stepping through power levels for some of the APs.
D. Several APs have high levels of overlapping coverage in the same area and the WLC is using RRM to correct the cell sizes AP coverage.
Answer: D
Q164. - (Topic 7)
A customer mounted three new APs in a small business. After configuring the IP address, users still could not access the web through the new access points. What two configurations are needed to fix this? (Choose two.)
A. Security parameters
B. Gateway address
C. Service Set ID
D. Antenna option
E. EAP Authentication
F. Unique AP Name
Answer: B,C
Q165. - (Topic 5)
An AP was reset while working on the correct association to a Cisco WCS version 7.0.
Which item was cleared during the reset?
A. static IP address
B. the location ID of the AP
C. WLC primary, secondary, tertiary
D. AP name
E. certificate
F. Nothing was cleared.
Answer: F
Explanation:
Reset — Sets the table to the default display so nothing will be cleared.
Renew vce 640-722:
Q166. - (Topic 6)
Refer to the exhibit.
With the current Cisco WLC version 7.0 syslog level settings set the way they are, which log levels are captured by the Syslog server?
A. syslog level errors only
B. all syslog levels
C. only the syslog severity level number of error and greater
D. only the syslog severity level number of error and less
Answer: D
Explanation:
Here the syslog level is set to errors, so it will send all logs with a severity level of errors, as well as all other messages with a greater severity level.
Q167. - (Topic 2)
An AP using version 7.0 MR1 broadcasts a Layer 3 CAPWAP discovery message on the local IP subnet. Which step does the AP take next?
A. Determine if the controller responses include the primary controller.
B. Determine if the controller responses include the master controller.
C. Send a discovery request using DHCP option 43.
D. Send a discovery request using DNS.
E. Send a discovery request using locally stored information on the AP.
F. Send a discovery request using OTAP.
Answer: E
Explanation:
If the LAP was registered to a WLC in a previous deployment, the LAP maintains the list of WLC IP addresses locally in NVRAM. The stored WLC IP addresses include all of the WLCs that are in previously joined WLC "mobility groups". This is the discovery process:
. LAPs send a unicast Layer 3 LWAPP discovery request to each of the WLC IP addresses that the LAP has in its NVRAM.
. WLCs that receive the LWAPP discovery message reply with a unicast LWAPP discovery response message to the LAP.
Reference: http://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/70333-lap-registration.html#topic2
Q168. - (Topic 7)
An engineer has been asked to disable all OFDM rates in the wireless environment. What three rates should be disabled to fulfill this requirement? (Choose three.)
A. 2
B. 5.5
C. 6
D. 9
E. 11
F. 12
G. 18
Answer: A,B,E
Q169. - (Topic 1)
What is the EIRP value for a transmitter that has a transmitter capable of 15 dBm, an antenna that has a gain of 12 dBi, and a cable that connects the transmitter to the antenna that has 1 db loss?
A. 26 dBm
B. 100 mW
C. .86 dBm
D. 165 dBm
E. 1000 mW
Answer: A
Explanation:
To determine EIRP follow this equation:
<Transmit Power> - Cable Loss + Antenna Gain = EIRP
So in this case 15 – 1 + 12 = 26
Q170. - (Topic 1)
What is the difference between the IEEE, the WiFi Alliance, and the FCC, ETSI, and TELEC?
A. The IEEE and FCC are responsible for the standards that apply to wireless networks. The WiFi Alliance, ETSI, and TELEC are the governmental agencies that regulate compliance with local standards.
B. The IEEE is responsible for Layer 1 and Layer 2 protocols. The WiFi Alliance is responsible for interoperability testing. The FCC, ETSI, and TELEC are responsible for radio frequency and transmission power-level regulations and standards in the U.S., Europe, and Japan.
C. The IEEE is responsible for Layer 1 and Layer 2 protocols. The FCC, ETSI, and TELEC are responsible for interoperability testing and compliance. The WiFi Alliance is responsible for radio frequency and transmission power-level regulations and standards on a global basis.
D. The IEEE and FCC are responsible for the Layer 3 protocol support and frequency and power-level regulations in the United States. ETSI and TELEC are responsible for frequency and power-level regulations in Europe and Japan. The WiFi Alliance is responsible to interoperability testing.
Answer: B
Explanation:
The FCC is the local regulatory authority responsible for frequency regulation in the United States. ETSI is a European standards organization responsible for producing standards for information and communications technologies. The Wi-Fi Alliance is an interoperability testing organization. The IEEE creates standards, and WPA is a pre-802.11 certification by the Wi-Fi Alliance.