思科认证考试
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
题目
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 basis
- B、 on all ingress interfaces； to provide independent congestion management and 16 queues
- C、 on all egress interfaces； so that a congested egress port does not affect traffic directed to other egress ports
- D、 on all egress interfaces； to prevent head-of-line blocking by utilizing multiple virtual output queues
- E、 on all egress interfaces； to be able to use EEE 802.1p CoS
相似问题和答案
第1题：
A. InterSwitch Link
B. Virtua LAN
C. Virtual Output Queuing
D. virtual storage area network
第2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.
正确答案:D,E
第3题：
The router SIS-R has been configured in a CIS network. As a network administrator, you were required to enable MPLS on that router.Which of the following description is making sense on the basis of the output information?（）
A. CEF switching is only needed to forward labeled packets.
B. CEF switching is needed on both ingress and egress interfaces on which MPLS is enabled.
C. Interface-level CEF switching is needed only on egress interfaces that are sending IP packets on which the egress LSR performs the label imposition process.
D. Interface-level CEF switching is needed only on ingress interfaces that are receiving IP packets on which the ingress LSR performs the label imposition process.
第4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
正确答案:C
第5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
正确答案:A
第6题：
Which statement about the Adapter FEX feature on the Cisco Nexus 5000 Series Switches is true？（）
- A、 Adapter FEX is a software feature that can be configured on any CNA as long as the Nexus 5000 is running a version of code that supports Adapter FEX
- B、 Adapter FEX can be thought of as a way to divide a single physical link into multiple virtual links or channels.
- C、 Packets on each channel are tagged with an 801.Q header that has a specific source VIF
- D、 When using a dual-homed NIC on the server， active/standby is not supported. Only active/active is supported.
正确答案:A
第7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
正确答案:C
第8题：
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9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
正确答案:B
第10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
正确答案:C