On Cisco Nexus 5000 Series Switches， where are the virtual output queues implemented， and what is the main purpose of virtual output queues？（）A、 on all ingress interfaces； to ensure maximum throughput on a per-egress， per-CoS basisB、 on all ingress interf

第1题：

You wish to increase the security of all of the routers within your network. What can be done to secure the virtual terminal interfaces on a router?（）

• A、Administratively shut down the interface.
• B、Physically secure the interface.
• C、Create an access list and apply it to the virtual terminal interfaces with the access-group command.
• D、Configure a virtual terminal password and login process.
• E、Enter an access list and apply it to the virtual terminal interfaces using the access-class command.

第2题：

What is the importance of using Virtual Output Queues on ingress Line Cards in a high-end router？（）

• A、Prevents head-of-line blocking
• B、Uses less memory
• C、Increases forwarding performance
• D、Simplifies configuration

第3题：

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

第4题：

Which component of the Cisco nexus 1000v monitors the migration of virtual machine during vmotion events?（）

• A、UCS Manger
• B、virtual supervisor module
• C、virtual ethernet module
• D、distributed virtual switch

第5题：

Which statement about Cisco Unified Fabric switches is correct？ （）   

• A、 The Nexus 5000 family of switches does not support vPC when running in either NPV or FCoE NPV mode.
• B、 The MDS 9100 family of switches is an excellent design choice as a Unified Fabric edge switch. 
• C、 The Nexus 7000 Series Switches can support the NPIV mode of operation， but cannot function as a complete Fibre Channel Forwarder.
• D、 The Nexus 7000 Series Switches cannot support advanced Cisco Fibre Channel features such as IVR.
• E、 The MDS family of Cisco Unified Fabric switches supports both the Fibre Channel Forwarder and Fibre Channel Bridge functions.

第6题：

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.

第7题：

What are two purposes of a forwarding class?（）

• A、to identify traffic that should be dropped
• B、to classify traffic
• C、to identify traffic that should receive common treatment
• D、to assign traffic to output queues

第8题：

An operator must check the status of print queues on a regular basis. Which of the following commands can be used to check on all the print queues?（）

• A、lslp -a
• B、qchk -A
• C、enq -s ALL
• D、lpstat -p ALL

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第13题：

Which mechanism do the CNA and the Cisco Nexus 5000 Series Switches use to provide a lossless class of Ethernet traffic？（）

• A、 LLDP
• B、 LACP
• C、 PFC
• D、 FIP

第14题：

When building a NIC team （virtual port channel） between a host and a pair of Cisco Nexus 5000 Series Switches that will carry FCoE traffic， what is the maximum number of physical links that can exist in the team？（）

• A、 1
• B、 2
• C、 4
• D、 5
• E、 16

第15题：

With MPLS Fast Reroute, what is the "point of local repair"?（）

• A、egress router
• B、ingress router
• C、start of the bypass tunnel
• D、all routers in the bypass tunnel

第16题：

You are the Cisco Network Designer in Cisco.com. What is the term for a logical SAN which provides isolation among devices physically connected to the same fabric？（）

• A、 InterSwitch Link
• B、 Virtua LAN
• C、 Virtual Output Queuing
• D、 virtual storage area network

第17题：

he Cisco Nexus 1000V Series Switches are virtual machine access switches that are an intelligent software switch implementation for VMware vSphere environments running the Cisco NX-OS Software operating system. Together with the VMware ESX hypervisor， the Nexus 1000V supports Cisco VN-Link server virtualization technology， which provides mobile virtual machine security and network policy for VMware View components， including the DHCP snooping feature. DHCP snooping is disabled on the Nexus 1000V by default. When the DHCP snooping feature is enabled on the Nexus 1000V， what are the default trust settings for the vEthernet and uplink ports？（） 

• A、 All vEthernet ports are trusted， and all Ethernet ports such as uplinks and port channels are trusted.
• B、 All vEthernet ports are not trusted， and all Ethernet ports such as uplinks and port channels are not trusted.
• C、 All vEthernet ports are trusted and all Ethernet ports such as uplinks and port channels are not trusted.
• D、 All vEthernet ports are not trusted and all Ethernet ports such as uplinks and port channels are trusted.

第18题：

What are two purposes of a forwarding class?（）

• A、to rewrite the ToS bits in the IP header
• B、to classify traffic
• C、to identify traffic that should receive commom treatment
• D、to assign traffic to output queues

第19题：

You plan to deploy a Virtual Desktop Infrastructure （VDI）. You need to ensure that all of the changes made to the virtual machines （VMs） in the VDI are discarded when users log off of their session. What should you include in the deployment？（）

• A、mandatory profiles
• B、a virtual desktop pool
• C、roaming profiles
• D、personal virtual desktops

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