Cisco 640-911 Online Practice Questions and Exam Preparation

Cisco 640-911 Online Questions & Answers

• Question 21:

  What are two attributes of a VLAN? (Choose two.)

  A. A VLAN defines a collision domain.
  B. A VLAN defines a broadcast domain.
  C. Broadcasts are flooded to all VLANs.
  D. Collisions are flooded to all VLANs.
  E. A Layer 3 device is required to route packets between VLANs.
  F. A Layer 2 device is required to route packets between VLANs.
  B. A VLAN defines a broadcast domain.
  E. A Layer 3 device is required to route packets between VLANs.

  ---

  "In computer networking, a single layer-2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them via one or more routers; such a domain is referred to as a virtual local area network, virtual LAN or VLAN." "A router (Layer 3 device) serves as the backbone for network traffic going across different VLANs." http://en.wikipedia.org/wiki/Virtual_LAN

• Question 22:

  What is the function of the Tab key on the Cisco Nexus Operating System command-line interface?

  A. redisplays the current command line
  B. deletes all characters from the cursor to the end of the command line
  C. clears the terminal screen
  D. completes a partially entered command if enough characters are present
  E. moves the cursor one word to the right
  D. completes a partially entered command if enough characters are present

  ---

  "Completes the word for you after entering the first characters of the word, and then pressing the Tab key. All options that match are presented." http:// www.cisco.com/en/US/docs/switches/datacenter/sw/4_1/nx- os/fundamentals/ configuration/guide/Cisco_Nexus_7000_Series_NX- OS_Fundamentals_Configuration_Guide__Release_4.1_chapter4.html

• Question 23:

  An engineer has implemented EIGRP in the data center with a large OSPF routed environment. All EIGRP routes were functioning properly until enabling EIGRP route summarization. Legacy OSPF routes are now being used for route selection. Why have the routes changed?

  A. EIGRP summary routes have a higher administrative distance than EIGRP specific routes
  B. reduce the administrative distance for the EIGRP summarized routes
  C. OSPF has a more specific route with EIGRP summarization enabled
  D. increase the administrative distance for the OSPF route process
  E. modify the bandwidth and delay metrics to be preferential over OSPF
  A. EIGRP summary routes have a higher administrative distance than EIGRP specific routes

• Question 24:

  HOTSPOT

  

  Hot Area:

  

  

• Question 25:

  Which protocol is supported when OSPFv2 is used as the routing protocol?

  A. IPv6
  B. IPv4
  C. UDP
  D. TCP
  B. IPv4

• Question 26:

  

  Refer to the exhibit. What two commands will allow the Nexus 5000 switch to continue to boot? (Choose two.)

  A. boot n5000-uk9-kickstart.5.2.1.N1.4.bin
  B. load n5000-uk9.5.2.1.N1.4.bin
  C. copy kickstart-latest n5000-uk9-kickstart.5.2.1.N1.4.bin startup
  D. copy system-latest n5000-uk9.5.2.1.N1.4.bin
  E. boot n5000-uk9.5.2.1.N1.4.bin admin-password Cisco123
  F. load n5000-uk9-kickstart.5.2.1.N1.4.bin
  A. boot n5000-uk9-kickstart.5.2.1.N1.4.bin
  B. load n5000-uk9.5.2.1.N1.4.bin

• Question 27:

  Which three attributes can be configured when creating a new user account on a Cisco Nexus 5000 Series Switch? (Choose three.)

  A. username
  B. password
  C. expiry date
  D. access list
  E. role feature
  F. authentication server
  A. username
  B. password
  C. expiry date

• Question 28:

  What two actions can be taken to enable inter-VLAN communications in the data center? (Choose two.)

  A. install a Layer 3 capable switch in the data center
  B. deploy a router as a Layer 3 services gateway attached inside each Layer 2 VLAN
  C. extend Layer 2 services to a Layer 3 capable VLAN using Layer 3 tunneling
  D. connect Layer 2 VLANs together with 802.1Q trunks
  E. use a routing protocol to direct packets into the Layer 2 network
  A. install a Layer 3 capable switch in the data center
  B. deploy a router as a Layer 3 services gateway attached inside each Layer 2 VLAN

• Question 29:

  In an IPv6 address, how many bits are used for the interface identifier?

  A. 48
  B. 16
  C. 64
  D. 128
  E. 10
  C. 64

• Question 30:

  A design team is upgrading hubs to Layer 2 switches to decrease the number of collisions caused by media access control method. Which media access control protocol is affected by this change?

  A. CSMA/CA
  B. CSMA/CD
  C. CSU/DSU
  D. 802.1q
  B. CSMA/CD