640-722 무료 덤프문제 온라인 액세스

What are four features of WPA? (Choose four.)

• A.unicast and broadcast key management
• B.support for a key caching mechanism
• C.authenticated key management using 802.1X
• D.a message integrity check protocol to prevent forgeries
• E.requires AES-CCMP
• F.a larger initialization vector, increased to 48 bits

Refer to the exhibit.

What does the yellow shield with the exclamation mark indicate?

• A.This is the ad-hoc network.
• B.The network uses an unsupported channel.
• C.The signal is too distorted to connect.
• D.The network uses open authentication and no encryption.
• E.The AP that is transmitting this SSID uses the wrong RF domain.

Which two types of encryption does Windows support for WPA2 security for wireless connections? (Choose two.)

• A.AES
• B.WEP
• C.TKIP
• D.PGP
• E.DES

An AP has been configured for personal wireless access to the Internet.
Which item should be configured on the wireless client?

• A.broadcast SSID
• B.RF channel
• C.IBSS
• D.BSS
• E.802.1X/EAP
• F.PSK

A Cisco Aironet 1260 AP is unable to join a Cisco 2500 Series WLC that is connected through a Layer 2 switch.
Which three options help to verify the wireless network operation and locate a possible issue? (Choose three.)

• A.Verify status of GUI WLANs > ID > Advanced
• B.CLI debug of DHCP
• C.Verify status of GUI Wireless > Country
• D.Verify status of GUI Wireless > Timers
• E.Verify Cisco WLC model
• F.CLI debug of dot11
• G.Verify Cisco WLC license