the auto discovery qos command is supported on serial interfaces， subinterfaces， and virtual interfaces
CEF must be enabled before configuring the auto discovery qos command
the auto discovery qos privilege EXEC command must be configured on a router for several days to collect a sampling of data traffic
the auto qos trust command relies on NBAR to provide VoIP classification
the auto qos voip command configures the voip classification on routers and switches
第1题：
A. Once saved, a rescue configuration is loaded using the rollback 0 command.
B. The rescue configuration must contain the minimal elements necessary to restore network connectivity.
C. A minimal rescue configuration is defined by default.
D. A rescue configuration must include a root password.
第2题：
Which two Cisco AutoQoS configuration statements are true？ （）
第3题：
A. It must include a root password.
B. It is rollback file number 50, and you can recover it by issuing rollback 50.
C. It is created by issuing request system configuration rescue save.
D. It is updated automatically when you commit.
第4题：
Which two statements are true about the various methods of implementing QoS？（）
第5题：
Which two statements about VACLs on Cisco Nexus 7000 Series Switches are true？ （）
第6题：
A. It allows users to retain all uncommitted changes when exiting exclusive configuration mode.
B. It allows multiple users to edit private copies of the configuration concurrently.
C. It causes the loss of all uncommitted changes when exiting exclusive configuration mode.
D. It excludes other users from editing the configuration.
第7题：
Which two statements about the wireless control system （WCS） are true？（）
第8题：
A. PAT is not supported.
B. PAT is enabled by default.
C. It supports the address-persistent configuration option.
D. It supports the junos-global configuration option.
第9题：
Which two Cisco AutoQoS interface statements are true？（）
第10题：
Which two statements about the Cisco Nexus 1000V VSM are true?（）