passguide ccna 640-721 pdf demo
“I am 100% satisfied with 640-721 training kit. The merged and manageable section in 640-721 training kit was really very helpful. All I say that it was all inclusive package. I have been given an assurance of 100% guaranteed pass when I purchased this whole training package and sure it was. I have been given an outstanding training material with Q&A splitted in to short segments for my ease AND practice tests that really mirror the actual 640-721 exam. I passed my 640-721 exam @ the first shot with flying colors which was incredible. I will give 100% recommendation for this training kit to all of the candidates who wish to be the 640-721 certified.”Questions: 29
A controller is connected to a Cisco IOS Catalyst switch. The following is the switch port configuration:
interface GigabitEthernet 1/0/10
switchport
switchport trunk encapsulation dot1q switchport trunk allowed vlan 1,20,30,50 switchport trunk native vlan 20
switchport mode trunk
Which one of the controller CLI commands assigns its management interface to the Cisco IOS Catalyst switch native vlan interface?
A. Config interface vlan management 0
B. Config interface vlan management 20
C. Config interface vlan management 30
D. Config interface vlan management 1
Answer: A Questions: 30
True or false: A computer device stores data in analog form.
A. True
B. False
Answer: B Questions: 31
Which two statements correctly describe beacon frames used by access points? (Choose two.)
A. Provides vendor proprietary information B. Contains SSIDs if this feature is enabled C. Sent in response to a probe frame
D. Is another name for an associated request
Answer: A, B Questions: 32
What is the reason that Cisco recommends using Tftpd32 version 3.0 or later when upgrading wireless LAN controller software to release 4.1 or later?
A. Tftpd32 is Cisco Compatible Extensions version 4 compliant
B. Tftpd32 supports TFTP file transfers larger than 32 MB C. Tftpd32 is a component of CiscoWorks LMS
D. Tftpd32 supports EoIP tunneling which is required for remote Cisco WLC upgrades
Answer: B Questions: 33
For the following options, which set of commands assigns a standalone access point an IP
address of 10.0.0.24 with a 27-bit subnet mask and a gateway of 10.0.0.1? A. config t
Page 7 of 25
Exam Name: Implementing Cisco Unified Wireless Networking Essentials (IUWNE)
Exam Type: Cisco
Exam Code: 640-721 Total Questions: 116
interface Dot11Radio0
ip address 10.0.0.24 255.255.255.224
exit
ip default-gateway 10.0.0.1
B. config t interface BVI1
ip address 10.0.0.24 255.255.255.224
exit
ip default-gateway 10.0.0.1
C. config t interface BVI1
ip address 10.0.0.24 255.255.255.192
exit
ip default-gateway 10.0.0.1
D. config t
interface FastEthernet1
ip address 10.0.0.24 255.255.255.224
exit
ip default-gateway 10.0.0.1
Answer: B Questions: 34
If you have the Cisco ADU installed but wish to use the Windows Zero Config utility to configure a wireless network profile, which action should you take first?
A. Uninstall the Cisco ADU.
B. Define a common profile in both the Cisco ADU and WZC.
C. In the WZC utility, make sure that the box labeled “Use Windows to configure my Wireless
Network Settings” is checked.
D. Define the wireless profile in the Wireless Networks tab in WZC.
Answer: C Questions: 35
On what layers of the OSI reference model do wireless networks operate?(Choose two)
A. Physical layer B. Network layer C. Data link layer. D. Session layer
Answer: A, C Questions: 36
How to differ application-specific devices from laptop computers in the way they support Cisco
Compatible Extensions?
A. There is no differentiation. ASDs and laptops must both support the same CCX features.
B. ASDs are required to support only CCXv1 and v2 features. Laptops must support all CCX
features.
C. Several features that are required for laptops are not required for ASDs.
D. ASDs are required to support only CCXv5 management features, while laptops are optional features.
Page 8 of 25
Exam Name: Implementing Cisco Unified Wireless Networking Essentials (IUWNE)
Exam Type: Cisco
Exam Code: 640-721 Total Questions: 116
Answer: C
Questions: 37
When choosing an EAP type for your Cisco ADU security profile, in order to authenticate successfully, what must you ensure?
A. That the time set on the clocks for the wireless client and the authenticator are close to the same time
B. That the client and authentication server support the same encryption protocol
C. That the EAP type that you selected is supported by the authentication server
D. That the EAP type selected is known not to exchange any of its credentials in the clear
Answer: C Questions: 38
EAP-FAST is an authentication protocol that creates a secure tunnel without using certificates. EAP-FAST was first supported where?
A. CCXv4
B. CCXv1
C. CCXv3
D. CCXv2
Answer: C Questions: 39
For the following items, which is derived from measuring the RF duty cycle?
A. LWAPP header length
B. Dynamic channel selection
C. RF utilization
D. Transmit power control
Answer: C Questions: 40
RF signals offer relatively short range as compared to light signals. True or false?
A. True
B. False
Answer: B Questions: 41
Which security benefit is enabled by use of Management Frame Protection?
A. Prevents the formation of client ad hoc networks within the RF coverage domain.
B. Protects the network infrastructure from denial-of-service attacks that attempt to flood the network with associations and probes.
C. Detects network reconnaissance probes, like those used by tools like NetStumbler, that attempt to discover the wireless network topology.
D. Provides encryption of administrator sessions between a wireless client and a wireless LAN
controller.
Answer: B
Page 9 of 25
Exam Name: Implementing Cisco Unified Wireless Networking Essentials (IUWNE)
Exam Type: Cisco
Exam Code: 640-721 Total Questions: 116
Questions: 42
Observe the following items carefully, In 802.1X, which is the supplicant?
A. The device that performs the authentication
B. The point of access
C. The machine that attempts to access the network
D. The machine in the network that keeps a list of conditions
Answer: C Questions: 43
Which three primary components describe TKIP? (Choose three.)
A. Message Integrity Check
B. Dynamic WEP
C. Per-Packet Key Hashing
D. Broadcast Key Rotation
Answer: A, C, D Questions: 44
802.1X defined which three roles? (Choose three.)
A. Authenticatee
B. AAA Server
C. Authentication Server
D. Supplicant
E. Authenticator
Answer: C, D, E
