多选题Which two statements best describe the wireless security standard that is defined by WPA？ （Choose two.）（）AIt specifies use of a static encryption key that must be changed frequently to enhance security.BIt requires use of an open authentication method.

第1题：

Which two of these statements best describe fast secure roaming for the wireless core feature set using autonomous access points？ （Choose two.） （）

• A、 It is compatible with all wireless clients.
• B、 It reduces roaming latency through reduced client RF channel scanning enhancements.
• C、 It reduces roaming latency to targeted times of less than 75ms.
• D、 Roaming occurs without reauthentication through a centralized RADIUS server.
• E、 It is enabled through WLSE deployment.

第2题：

From small business to large-scale enterprises， which two best describe how the Cisco Unified Wireless Network reduces overall operational expenses？ （）

• A、 extends networkQoS throughout the network
• B、 simplifies management of central or remotely located access points
• C、 ensures implementation of the most recent security protocols
• D、 streamlines wireless LAN management
• E、 extends features for optical traffic network services

第3题：

第4题：

Which two statements best describe the Cisco Unified Wireless Network？（）

• A、 The Cisco Unified Wireless Network provides the framework to segregate wired and wirelessnetworks to deliver the best security for companies that are deploying WLANs.
• B、 The Cisco Unified wireless Network provides the framework to integrate and extend wired andwireless networks to deliver the lowest-possible total cost or ownership for companies that aredeploying WLANs
• C、 The Cisco Unified Wireless Network extends "wireless awareness" into important elements ofthe network infrastructure， providing the same level of security for WLANs that organizations havecome to expect from their VPNs.
• D、 The Cisco unified Wireless Network extends "wireless awareness" into important elements ofthe network infrastructure， providing the same level of security scalability， reliability ease ofdeployment and management for WLANs that organizations have come to expect from their wiredLANs.

第5题：

Which two statements best describe the wireless security standard that is defined by WPA (Choose two.)（）。

• A、It specifies use of a static encryption key that must be changed frequently to enhance security
• B、It requires use of an open authentication method
• C、It specifies the use of dynamic encryption keys that change each time a client establishes a connection
• D、It requires that all access points and wireless devices use the same encryption key
• E、It includes authentication by PSK

第6题：

Which two of these statements best describe the benefits of WPAv2？ （Choose two.）（）

• A、 SSID broadcast prevention
• B、 man-in-the-middle attack protection
• C、 cost reduction through software upgrades in all existing hardware
• D、 dynamic key generation
• E、 RF jamming prevention

第7题：

Which two statements best describe Cisco IOS IP SLA？（）

• A、only implemented between Cisco source and destination-capable devices
• B、statistics provided by syslog， CLI， and SNMP
• C、measures delay， jitter， packet loss， and voice quality
• D、only monitors VoIP traffic flows
• E、provides active monitoring
• F、provides passive monitoring

第8题：

第9题：

Which two of these statements best describe the benefits of WPAv1？ （）

• A、 SSID broadcast prevention
• B、 Improved mutual authentication
• C、 Improved encryption through AES
• D、 Improved protection against sniffing initialization vectors
• E、 RF jamming prevention

第10题：

From small businesses to large-scale enterprises， which two best describe how the Cisco UnifiedWireless Network reduces overall operational expenses？（）

• A、 extends networkQoS throughout the network
• B、 simplifies management of central or remotely locates access points
• C、 ensures implementation of the most recent security protocols
• D、 streamlines wireless LAN management
• E、 extends features for optical traffic network services