Cisco 640-911 Online Practice Questions and Exam Preparation

Cisco 640-911 Online Questions & Answers

• Question 181:

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• Question 182:

  What is the maximum distance that is supported by Cisco active Twinax cables?

  A. 8 m
  B. 10 m
  C. 12 m
  D. 15 m
  B. 10 m

• Question 183:

  When configuring a trunk port on a Nexus switch, what two options must be configured before the port will participate in a 802.1Q trunk group? (Choose two.)

  A. configure a native VLAN
  B. enable trunking
  C. set port speed and duplex
  D. configure 802.1Q encapsulation
  E. enable spanning tree loop-guard
  A. configure a native VLAN
  B. enable trunking

• Question 184:

  What is the acronym expansion of the UDLD feature of Cisco Nexus Operating System?

  A. UniDirectional Link Detection
  B. Unified Data Link Distribution
  C. Unified Data Loss Detection
  D. Unified Directional Link Distribution
  E. Unidirectional Data Loss Detection
  A. UniDirectional Link Detection

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  "Unidirectional Link Detection (UDLD) is a data link layer protocol from Cisco Systems to monitor the physical configuration of the cables and detect unidirectional links." http://en.wikipedia.org/wiki/Unidirectional_Link_Detection

• Question 185:

  How many supervisor engines must a Cisco Nexus chassis contain to support the In- Service Software Update feature?

  A. 2
  B. 3
  C. 4 D. 1
  A. 2

• Question 186:

  What is the Cisco Nexus Operating System command to define a port as a Layer 3 port?

  A. Port routed
  B. No switchport
  C. l3 switchport
  D. Port switching off
  B. No switchport

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  "If you want to configure a Layer 3 interface for Layer 2, enter the switchport command. Then, if you change a Layer 2 interface to a routed interface, enter the no switchport command. " http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/command/reference/l ayer2/n5kl2_cmds_n.pdf

• Question 187:

  Which two features must be licensed on a Cisco Nexus 7000 Switch? (Choose two.)

  A. Layer 3
  B. Virtual Device Contexts
  C. Virtual Port Channel
  D. Fibre Channel
  A. Layer 3
  B. Virtual Device Contexts

• Question 188:

  Which two options describe services that are provided by UDP? (Choose two.)

  A. session multiplexing
  B. segmentation
  C. connection-oriented
  D. reliable packet delivery
  E. best-effort packet delivery
  A. session multiplexing
  E. best-effort packet delivery

  ---

  "UDP is faster because there is no error-checking for packets." http://www.diffen.com/difference/TCP_vs_UDP

• Question 189:

  If a Nexus switch receives a frame and no MAC table entry is found for the destination, what will take place?

  A. The frame will be dropped.
  B. The frame will be flooded.
  C. The sender will be notified.
  D. The destination address will be learned.
  B. The frame will be flooded.

• Question 190:

  What is the minimum required command to enter global configuration mode on a Cisco Nexus switch?

  A. nexus# con
  B. nexus# configure
  C. nexus# configure global
  D. nexus# configure terminal
  A. nexus# con

  ---

  Example:

  NX# con

  Enter configuration commands, one per line. End with CNTL/Z.

  NX(config)#

  PS. in IOS minimum "conf t"