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Implementing Cisco Unified Wireless Networking Essentials (IUWNE) (640-721 Exam)屬於Cisco CCNA認證考試，您可能還需要參加其他相關考試，詳情請點擊CCNA認證專題，您將看到所有CCNA認證相關考題。

"Implementing Cisco Unified Wireless Networking Essentials (IUWNE)", the full name of  640-721 exam, is a Cisco certification.Preparing for the 640-721 exam? Looking for the best 640-721 Test Questions, 640-721 Practice Exam, 640-721 Dumps?

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1. For the following items ,which one correctly describes fading?
A. A function of the frequency and should be provided in the cable specification by the vendor.
B. Another signal source is producing energy on the channel in which you are trying to operate.
C. A time-varying change in the path loss of a link with the time variance governed by the movement of objects in the environment, including the transmitter and receiver themselves.
D. The desired  signal  reaches  the  receiving antenna  via multiple paths, each of which has a different propagation delay and path loss.
Answer: C 
2. Observe  the  following  statements, which  limitation  applies  to  the  use  of  the Cisco WLAN Solution Management over Wireless feature?
A. Read-write access is not available; only read-only access is supported.
B. Controllers must be managed using only secure protocols (that  is, SSH and HTTPS), not nonsecure protocols (that is, HTTP and Telnet).
C. Uploads and downloads from the controller are not allowed.
D. Wireless clients can manage other controllers however not  the same controller and AP to which  the client is associated.
Answer: C 
3. As a network technician ,you must know Cisco WiSMs . Up to how many Cisco WiSMs are supported in a single mobility group operating under v5.0 code?
A. 16
B. 12
C. 24
D. 5
Answer: B 
4. You work as a network technician at Cisco.com, read this subject carefully ,then answer the question. The existing Cisco Unified Wireless Controller is running v5.0 code for both the controllers and the Cisco WCS. A controller has been configured with an appropriate rogue rule condition to report discovered APs to the Cisco WCS. What default alarm level is used to display all rogue APs in the Alarm Summary?
A. Major
B. Critical
C. Flash
D. Minor
Answer: D 
5. What are the four types of wireless networks?(Choose four)
A. Wireless PAN
B. LAN
C. MAN
D. VLAN
E. WAN
Answer: ABCE 
6. Cisco Client Management Frame Protection is running on a mobility group with two controllers. For the following options ,which two MFP requirements protect the network? (Choose two.)
A. requires the use of a nonbroadcast SSID
B. requires CCXv5
C. implements the validation of wireless management frames
D. forces clients to authenticate, using a secure EAP method only
Answer: BC 
7. What happens when client exclusion is enabled with a timeout value of zero ?
A. Clients are excluded indefinitely.
B. Client exclusion is disabled.
C. Clients are never excluded.
D. Clients must be explicitly included by specifying the MAC address.
Answer: A  The safer , easier way to help you pass any IT exams.
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8. The central office is currently using a combination of 4400 and 2100 series WLAN controllers running v4.2  and  a  variety  of  LWAPP-enabled  access  points  servicing  both  2.4 GHz  and  5 GHz.  The WLAN deployment has been extended  to each  remote office by  implementing a 526 WLAN controller  running v4.1 and several 521 access points. Wireless client deployment uses EAP-TLS authentication by use of a centralized RADIUS server plus 802.11n for performance. After the first remote office deployment, remote office users complain that they are not connecting via 802.11n. Which will most likely cause this problem?
A. The 521 AP does not support 5 GHz, which prohibits 802.11n.
B. The 521 AP and 526 WLAN controllers do not support AES, which prohibits 802.11n.
C.  The  526  WLAN  controller  does  not  support  external  authentication  via  RADIUS,  prohibiting authentication.
D. The 526 WLAN controller does not support 802.11n with either v4.1 or v4.2.
Answer: D 
9. How do the characteristics that are available on the Cisco WCS for Linux version differ from those of the Cisco WCS for Windows version?
A. Cisco WCS for Linux is required for deployments.
B. Assuming  that  there are no differences  in hardware, a Cisco WCS  for Linux can support up  to 750  wireless LAN controllers. A Cisco WCS for Windows can support up to 250 wireless LAN controllers.
C. Cisco WCS  for Windows  includes  support  for Cisco Spectrum Expert  clients. Cisco WCS  for Linux does not support Cisco Spectrum Expert clients.
D. There are no differences in features between the Linux and Windows versions of Cisco WCS.
Answer: D