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Code d'Examen: 640-722
Nom d'Examen: Cisco (Implementing Cisco Unified Wireless Networking Essentials v2.0)
Questions et réponses: 140 Q&As
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NO.1 In a typical wireless network using WPA, WPA2 or VPN, why is it still possible for a rogue client to
launch a DOS attack?
A. WPA and WPA2 are not considered strong encryption algorithms and are easily cracked.
B. 802.11 management frames are easily compromised.
C. Cisco Compatible Extensions v5 are required with WPA, WPA2, or VPN to keep rogues from launching
attacks in the wireless network.
D. The message integrity check frames are never encrypted or authenticated, which allows rogues to
spoof clients.
Answer: B
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NO.2 Which interface is considered a dynamic interface?
A. the virtual interface
B. the AP manager interface
C. the LAG interface
D. the management interface
E. the service port interface
F. a WLAN client data interface
Answer: F
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NO.3 Which Cisco AnyConnect module allows troubleshooting for core Cisco AnyConnect problems?
A. telemetry
B. web security
C. VPN
D. NAM
E. DART
F. posture
G. CSSC
Answer: E
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NO.4 Refer to the exhibit.
Which menu gives you access to manage background tasks in Cisco WCS?
A. None, because the General tab provides access to the management of background tasks
B. Monitor
C. Configure
D. Services
E. Administration
F. Tools
Answer: E
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NO.5 Strong security is required, but a centralized RADIUS authenticator has not been implemented.
Which two steps must you take to provide maximum security when using a pre-shared key? (Choose
two.)
A. Change the TKIP on a weekly basis.
B. Use a key that includes mixed-case letters, numbers, and symbols with a length greater than 10
characters.
C. Use only with WPA and WPA2, following proper strong key guidelines.
D. Use the longest possible WEP key in your security policy.
Answer: BC
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NO.6 Which two tasks does RRM routinely perform? (Choose two.)
A. antenna selection
B. AP address assignment
C. channel assignment
D. encryption method assignment
E. transmit power control
Answer: CE
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NO.7 Which three items do you need to establish a wireless connection to an enterprise wireless network?
(Choose three.)
A. SSID name
B. RF channel
C. RF signal
D. 802.1X/EAP credentials
E. pre-shared key
F. web page
G. WPA/WPA2 settings
Answer: ACD
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NO.8 What is the maximum number of lightweight APs that can be supported from a single Cisco WCS
Navigator management console with Cisco WCS and Cisco WLC running version 7.0 code?
A. 10,000
B. 20,000
C. 25,000
D. 30,000
E. 60,000
Answer: D
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NO.9 Which method of encryption does the 802.11i standard use?
A. AES/CCMP
B. AES/ECB
C. AES/OCB
D. TKIP
E. both AES/ECB and AES/CCMP
Answer: A
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NO.10 Which Cisco AnyConnect module provides wireless connectivity?
A. telemetry
B. web security
C. VPN
D. NAM
E. DART
F. posture
G. CSSC
Answer: D
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NO.11 You are testing a new autonomous Cisco Aironet 1260 AP that has booted for the first time on the
existing corporate network, which includes voice, data, and location services.
How do you reach the GUI of the AP?
A. HTTP to 10.0.0.1.
B. HTTP to 192.168.1.1.
C. HTTP to the DHCP address.
D. HTTPS to 10.0.0.1.
E. HTTPS to the 192.168.1.1.
F. HTTPS to the DHCP address.
Answer: C
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NO.12 Refer to the exhibit.
Which two options does this icon represent about the status of the respective AP on a Cisco WCS version
7.0 map? (Choose two.)
A. The 802.11a/n radio is administratively disabled.
B. The 802.11a/n radio has a minor fault.
C. The 802.11a/n radio has a major fault.
D. The 802.11b/g/n radio is administratively disabled.
E. The 802.11b/g/n radio has a minor fault.
F. The 802.11b/g/n radio has a major fault.
Answer: CD
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NO.13 A WLAN deployment uses a combination of Cisco Aironet 1260 APs and multiple Cisco 5500 Wireless
LAN Controllers to provide wireless LAN access to end-users. The network administrator has decided to
use DHCP Option 43 to enable the APs to discover the wireless LAN controllers. When configuring the
DHCP scope, which format should be used for the Cisco WLC addresses?
A. a comma-separated ASCII string of Cisco WLC AP-manager addresses
B. a comma-separated ASCII string of Cisco WLC management addresses
C. a comma-separated ASCII string of Cisco WLC virtual IP addresses
D. a hexadecimal string of Cisco WLC AP-manager addresses
E. a hexadecimal string of Cisco WLC management addresses
F. a hexadecimal string of Cisco WLC virtual IP addresses
Answer: E
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NO.14 In general, what is the difference in transmit power between an AP operating at Tx Power Level 1 and
the same AP operating at Tx Power Level 3?
A. 2 dB
B. 3 dB
C. 6 dB
D. 11 dB
E. 17 dB
Answer: C
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NO.15 Which type of authentication is used initially by a controller-based AP so that a guest client can get an IP
address?
A. 802.1x
B. EAP
C. LEAP
D. open authentication
E. TLS
F. SSL
Answer: D
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NO.16 You have brought your MacBook Pro running OS 10.6 to work and intend use the enterprise wireless
network. This network is using EAP-FAST and 2.4 GHz for data and 5 GHz for VoWLAN. Which statement
about the laptop configuration and wireless connection is true?
A. Install a USBwireless adapter and configure
B. Install AppleEAP-Fast plug-in and configure
C. Install Cisco AnyConnect v2.4 and configure
D. Configure Apple network preferences for EAP-FAST
E. The laptop does not support EAP-FAST and will be unable to connect
F. The laptop only supports 5 GHz and will be unable to connect
Answer: D
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NO.17 Which two statements are true about WiMAX technology? (Choose two.)
A. WiMAX is defined by 802.11i.
B. Typically, fixed WiMAX networks have a higher gain direction antenna installed near the client.
C. WiMAX is capable of working as a long-range system over several miles.
D. WiMAX works only for licensed frequencies.
Answer: BC
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NO.18 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
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NO.19 Which option is needed to earn the Cisco Compatible credential for Cisco Compatible Extensions Lite?
A. Foundation and Management are required.
B. Location and Management are required.
C. Foundation and Location are required.
D. Foundation and Voice are required.
E. Voice is required.
F. Foundation is required.
G. Location is required.
H. Management is required.
Answer: F
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NO.20 What is the impact of configuring a single SSID to support TKIP and AES encryption simultaneously?
A. The overhead associated with supporting both encryption methods degrades client throughput
significantly.
B. Some wireless client drivers might not handle complex SSID settings and may be unable to associate
to the WLAN.
C. This configuration is unsupported and the Cisco Wireless Control System generates alarms
continuously until the configuration is corrected.
D. This configuration is common for migrating from WPA to WPA2. No problem is associated with using
this configuration.
Answer: B
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