On a Cisco Nexus 7000 Series Switch， what is the purpose of this command？（）  switch# config terminal  switch（config）# mac address-table learning-mode conversational vlan 1-10  switch（config）#   

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• Enabling jumbo frame support on a Cisco Nexus 5500 Switch can be done through which method？（）   

  A .  changing the default policy map from a default MTU of 1500 to 9216 B .  using the command system jumbomtu 9216 C .  using the command interface MTU 9216 D .  configuring the default Ethernet system class to an MTU of 9216 with a new network QoS policy ma

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• A virtual port channel （vPC） allows links that are physically connected to two different Cisco Nexus devices to appear as a single port channel to a third device. Which are the mandatory steps for configuring vPC？ （）   

  A .  Enable feature vPC B .  Define domains C .  Establish peer keepalive connectivity D .  Create a peer link E .  Configure the peer link as a trunk port F .  Create port channels and vPCs G .  Define port channel load-balancing method H .  Make sure configurations are consistent

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• Which two are benefits of using remote AAA services for Cisco Nexus products？ （）

  A .  They make it easier to manage user logins and passwords across devices. B .  They enable automated configuration backup for devices. C .  They centrally manage user attributes and permissions. D .  Local console access is never included in AAA and can be used for access when the AAA servers are down.

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• Which two Fibre Channel features are not supported in Cisco Nexus 5500 and Nexus 5000 platforms？ （）

  A .  port security B .  fabric binding C .  IVR D .  port tracking E .  FICON

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• Which two statements about SAN port channels configured on Cisco Nexus 5000 Series switches are true？ （）  

  A .  The bring up protocol automatically detects and overrides any misconfiguration. B .  You can manually configure channel groups， or they can be automatically created. C .  Changes in configuration to the SAN port channel interface must also be made to all members of the channel group. D .  The port channel protocol uses the exchange fabric parameters command to communicate across peer ports in an ISL. E .  The port channel protocol ensures that a set of ports is eligible to be part of the same SAN port channel.

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• With Cisco NX-OS on a Cisco Nexus platform， which command shows memory usage， total processes， and CPU state？（）

  A .  show memory detailed B .  show process cpu sorted C .  show system resources D .  show hardware capacity

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• Which three statements best describe multicast operation on Cisco Nexus switches in a data center？（）

  A .  Cisco NX-OS Software does not support PIM dense mode. B .  The command ip multicast-routing must be enabled in Cisco NX-OS Software before any multicast configuration is possible on the switch. C .  PIM CLI configuration and verification commands are not available until you enable the PIM feature with the feature pim command. D .  Cisco NX-OS Software supports multicast routing per Layer 3 VRF instance. E .  The default PIM operational mode on the Cisco Nexus 7000 switch is SSM.

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• How is NIC teaming configured when port channels are not in use in a Cisco Nexus 1000V?（）

  A . active / active using spanning tree B . active / active C . active / passive using spanning tree D . active / passive

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• What is required for proper implementation of jumbo frame support on a Cisco Nexus 2000 Series Fabric Extender？（）    

  A .  The interface configured as FEX fabric requires the MTU to be set to jumbo. B .  The service policy must be applied to the system QoS. C .  The device defaults to jumbo frame support； no changes are required. D .  The switchport in the FEX interface must be set to MTU 9216.

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• Which command enables IPv6 forwarding on a cisco router?（）

  A . ipv6 host B . ipv6 unicast-routing C . ipv6 local D . ipv6 neighbor

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• On a Nexus 5000 Series Switch， when a VFC is not online， what are the causes？（）

  A .  LLDP transmit and receive are disabled B .  The initiator server has no connectivity to the target storage C .  FIP negotiation timing D .  Peer does not support LLDP E .  VSAN trunk protocol has been enabled

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• Which three statements best describe HSRP configuration on Cisco Nexus switches？（）

  A .  In a vPC topology， the primary HSRP router will respond to ARP requests， but both HSRP routers will forward data traffic. No additional configuration is required. B .  In a vPC topology， the primary HSRP router will respond to ARP requests， but both HSRP routers will forward data traffic if the peer-gateway feature is enabled. C .  You can configure two overlapping HSRP groups to load share traffic from the connected hosts while providing the default router redundancy. D .  You can use the show standby command to verify HSRP operation and configuration. E .  If you remove the feature hsrp command， all relevant HSRP configuration information isalso removed.

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• How many VSM modes are there in a Cisco Nexus 1000V environment？（）

  A .  0 B .  1 C .  2 D .  3 E .  4 F .  5

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• Which two statements about the Cisco Nexus 1000V VSM are true?（）

  A . It performs switching decisions and forwarding for the VEM B . It can be run on a virtual machine C . It can be used for remote VEM switching Iine card

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• Which encapsulation types are configurable on a Cisco switch for a trunk?（）

  A . VTP B . ISL C . CDP D . 802.1Q E . 802.1p F . LLC G . IETF

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• Which three capabilities make the Cisco Nexus 7010 switch an effective solution for the data center core？ （）

  A .  virtualization B .  unified I/O C .  support for 48-port Gb/s line card D .  support for Data Center Service Modules E .  high performance F .  high availability

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• When creating a role in a Cisco Nexus 7000 Series Switch， rules are used to define the type of operations that a role will allow the user to perform.  Which two of these parameters cannot be applied as a rule？ （） 

  A .  port-profile B .  command C .  access-list D .  feature-group E .  OID

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• Which statement about SAN port channels configured on Cisco Nexus 5000 Series Switches is true？（）  

  A .  A single SAN port channel can have both Fibre Channel and virtual Fibre Channel interfaces.  B .  SAN port channels can include up to 16 interfaces. C .  SAN port channels distribute traffic across all links in the port channel when source ID and destination ID load balancing are used. D .  The links in SAN port channels can be connected to different sets of switches. E .  The On mode of operation means ports only operate as part of a SAN port channel or remain inactive.

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• Which option describes the default roles available to RBAC on Cisco Nexus switches？（）

  A .  admin， operator， network-admin， and network-operator B .  admin， read-only， network-admin， and network-operator C .  vdc-admin， vdc-operator， network-admin， and network-operator D .  vdc-admin， vdc-operator， network-admin， and network-operator （for Nexus 7000） and network- admin and network-operator （for other Nexus switches） E .  admin and read-only

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• Which two statements about VACLs on Cisco Nexus 7000 Series Switches are true？ （）

  A .  A single VACL can be shared across two or more VDCs. B .  Use of VACLs requires no special license to be installed. C .  VACLs make use of IP or MAC ACLs. D .  Only options drop and forward are permitted.

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• On the Cisco Nexus 7000 Series Switch， Control Plane Policing is enforced on which component？（）

  A .  The supervisor module enforces CoPP before out-of-policy traffic reaches the CPU B .  The fabric modules enforce CoPP in the fabric before out-of-policy traffic reaches the CPU  C .  The linecards enforce CoPP locally before out-of-policy traffic reaches the CPU D .  The egress virtual output queue enforces CoPP locally before out-of-policy traffic reaches the CPU

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• Which three statements about the DHCP snooping feature on Cisco Nexus switches are true？ （）

  A .  DHCP snooping commands are not available until the feature is enabled with the feature dhcp- snooping command. B .  When you enable the DHCP snooping feature， the switch begins building and maintaining the DHCP snooping binding database. C .  The switch will not validate DHCP messages received or use the DHCP snooping binding database to validate subsequent requests from untrusted hosts until DHCP snooping is enabled globally and for each specific VLAN. D .  Globally disabling DHCP snooping removes all DHCP snooping configuration on the switch. E .  Globally disabling DHCP snooping does not remove any DHCP snooping configuration or the configuration of other features that are dependent upon the DHCP snooping feature.

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• The Cisco Nexus 1000V requires which of the following VLANs to be configured:（）.

  A . Control B . Supervisor C . Packet D . Management

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• DHCP snooping on Cisco Nexus 1000V Series Switches acts like a firewall between untrusted hosts and trusted DHCP servers by doing which of these？ （）

  A .  validates DHCP messages received from untrusted sources and filters out invalid response messages from DHCP servers B .  intercepts all ARP requests and responses on untrusted ports C .  builds and maintains the DHCP snooping binding database， which contains information about untrusted hosts with leased IP addresses D .  uses the DHCP snooping binding database to validate subsequent requests from untrusted hosts E .  limits IP traffic on an interface to only those sources that have an IP-MAC address binding table entry or static IP source entry

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