多选题Private VLANS can be configured as which three of these port types？（）AisolatedBprotectedCprivateDassociatedEpromiscuousFmunity

第1题：

What are three benefits of implementing vlans？（）

• A、A more efficient use of bandwidth can be achieved allowing many physical groups to use the same network infrastructure
• B、Broadcast storms can be mitigated by decreasing the number of broadcast domains，thus increasing their size
• C、A higher level of network security can be reached by separating sensitive data traffic from other network traffic
• D、Port-based vlans increase switch-port use efficient，thanks to 802.1Q trunks
• E、A more efficient use of bandwidth can be achieved allowing many logical networks to use the same network infrastructure
• F、Broadcast storms can be mitigated by increasing the number of broadcast domains，thus reducing theirsize
• G、VLANs make it easier for IT staff to configure new logical groups，because the vlans all belong to thesame broadcast domain

第2题：

Cisco Configuration Assistant supports a variety of virtual private networks. Which three types of VPN can be configured by using CCA？（）

• A、 DMVPN
• B、 MPLS VPN
• C、 IPv6 VPN
• D、 Cisco IOS SSL VPN
• E、 site-to-site VPN
• F、 Cisco Easy VPN

第3题：

第4题：

Each port that is configured to use LACP has an LACP port priority. Which statements are true about LACP port priority？ （）

• A、 Port priority value can be configured between 1 and 65535.
• B、 A higher port priority value means a higher priority of LACP.
• C、 Port priority can be configured so that specific links can be chosen as active links rather than the hot standby links within the port channel.
• D、 LACP uses the port priority with the port number to form the port identifier.
• E、 LACP Port priority default value should always be changed

第5题：

Which two statements are true about voice VLANs？（）

• A、Voice VLANs are only used when connecting an IP phone and a host to distinct switch ports
• B、Access ports that are configured with voice VLANs will always trust the CoS that is received from IP phones
• C、Access ports that are configured with voice VLANs may or may not override the CoS value that is received from an IP phone
• D、Voice VLANs are configured using the switchport voice vlan vlan-ID interface configuration command
• E、Voice VLANs provide a trunking interface between an IP phone and an access port on a switch to allow traffic from multiple devices that are connected to the port
• F、Enabling Voice VLAN on a switch port will automatically configure the port to trust the incoming CoS markings

第6题：

Which two statements about voice VLANs are correct？（）

• A、Voice VLANs eliminate the need for QoS configuration
• B、Voice VLANs are used on trunk links to eliminate the need for QoS CoS markings
• C、Voice VLANs are mainly used to reduce the number of access switch ports that are used in the network
• D、Voice VLANs can be configured to forward existing CoS priorities or override them
• E、Voice VLANs are mainly used between access layer switches and distribution layer switches
• F、Voice VLANs can be configured on Layer 2 ports only

第7题：

Which statement ab0ut VLANs in a Cisco UCS is true?（）

• A、Fabric interconnect can never participate in VTP
• B、Fabric interconnect supports ISL and 802.1Q trunking
• C、The supported range of VLANs is auto-configured by UCS
• D、VLANs are configured through the Cisco UCS manager. （fabric interconnect may be set up in switch mode）

第8题：

第9题：

Which three statements about Label-Switched Paths （LSPs） are true？ （）

• A、 LSPs are bidirectional.
• B、 LSPs are unidirectional.
• C、 LSPs can be signaled by CAC.
• D、 LSPs can be configured explicitly.
• E、 LSPs can be configured dynamically.

第10题：

Private VLANS can be configured as which three of these port types？（）

• A、isolated
• B、protected
• C、private
• D、associated
• E、promiscuous
• F、munity