Cisco 640-911 Online Practice Questions and Exam Preparation

Cisco 640-911 Online Questions & Answers

• Question 101:

  What two address and subnet combinations are properly matched? (Choose two.)

  A. 10.230.33.15/28
  B. 10.32.11.67/27
  C. 172.16.255.255/14
  D. 172.25.44.96/26
  E. 192.168.73.223/29
  B. 10.32.11.67/27
  C. 172.16.255.255/14

• Question 102:

  Which two options describe what can happen when devices are in the same broadcast domain? (Choose two.)

  A. They are on the same VLAN and the same switch.
  B. They are on different VLANs and the same switch.
  C. They are on different VLANs and different switches.
  D. They are on the same VLAN and different switches.
  A. They are on the same VLAN and the same switch.
  D. They are on the same VLAN and different switches.

• Question 103:

  What action does a switch take if the destination MAC address is unknown?

  A. Discard frame
  B. Send ICMP unreachable message to source
  C. Flood packet on all ports
  D. Compare destination IP address against an ACL to determine if it is permitted
  E. Send gratuitous ARP on all ports and wait for reply before forwarding
  C. Flood packet on all ports

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  "What happens though when the switch receives a frame with a destination MAC address that is not included in the table? In that case the switch will just broadcast/flood the frame with the unknown destination address to all of its ports (apart from the port where the frame came from). This process is called unknown unicast flooding. " http://telconotes.wordpress.com/2013/03/09/how-a-switch-works/

• Question 104:

  Which situation will cause a switch to flood traffic out all of the ports on the switch?

  A. The switch receives a destination MAC address of 0000.0000.0000.
  B. The switch receives a destination MAC of ffff.ffff.ffff.
  C. The switch receives a source MAC address of 0000.0000.0000.
  D. The switch's TCAM reaches the MAC address limit.
  E. The switch was configured in cut-through mode.
  B. The switch receives a destination MAC of ffff.ffff.ffff.

• Question 105:

  There is a large amount of traffic inside a network segment with a destination address of FF:FF:FF:FF:FF:FF. What type of traffic uses this address?

  A. FF:FF:FF:FF:FF:FF is the Layer 2 broadcast address.
  B. FF:FF:FF:FF:FF:FF is the Layer 2 network address.
  C. FF:FF:FF:FF:FF:FF is the Layer 3 broadcast address.
  D. FF:FF:FF:FF:FF:FF is the Layer 3 network address.
  E. FF:FF:FF:FF:FF:FF is multicast traffic.
  A. FF:FF:FF:FF:FF:FF is the Layer 2 broadcast address.

• Question 106:

  What are three reasons to migrate from IPv4 to IPv6? (Choose three.)

  A. IPv6 eliminates the requirement for NAT.
  B. IPv6 includes enough IP addresses to allocate more than four billion IP addresses to every person on earth.
  C. IPv6 eliminates the need for VLANs.
  D. Hosts can be assigned an IP address without DHCP.
  E. Hosts can be assigned an IP address without DNS.
  A. IPv6 eliminates the requirement for NAT.
  B. IPv6 includes enough IP addresses to allocate more than four billion IP addresses to every person on earth.
  D. Hosts can be assigned an IP address without DHCP.

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  "IPv6 address contains 32 characters vs. 12 in IPv4. This will grant no ip address translation and dynamic changes. We will even don't need NAT! " http:// www.ipv6.ru/english/history/goipv6.php " IPv6 uses a 128-bit address, allowing 2128, or approximately 3.4?038 addresses, or more than 7.9?028 times as many as IPv4, which uses 32-bit addresse"; http://en.wikipedia.org/wiki/IPv6

• Question 107:

  Which network topology is most closely associated with FDDI?

  A. bus
  B. token passing bus
  C. star
  D. extended star
  E. ring
  E. ring

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  http://en.wikipedia.org/wiki/Fiber_Distributed_Data_Interface

• Question 108:

  Which transport protocol requires a three-way handshake to establish a new connection?

  A. ARP
  B. UDP
  C. IP
  D. TCP
  D. TCP

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  "To establish a connection, TCP uses a three-way handshake." http://en.wikipedia.org/wiki/Transmission_Control_Protocol

• Question 109:

  Which VTP mode disallows the creation of local VLANs?

  A. transparent
  B. tunneling
  C. server
  D. client
  E. off
  F. native
  D. client

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  "A VTP client behaves like a VTP server and transmits and receives VTP updates on its trunks, but you cannot create, change, or delete VLANs on a VTP client. VLANs are configured on another switch in the domain that is in server mode." http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/ release/12.2_52_se/c onfiguration/guide/swvtp.html#wp1205076

• Question 110:

  A network engineer has multiple network devices to choose from to connect 10 PCs to a network. Requirements include that packet collisions are minimized for each client and that the physical network topology must be highly scalable. Which two connectivity options should the engineer use? (Choose two.)

  A. Connect each of the 10 client PCs to a network switch.
  B. Use a star physical network topology.
  C. Connect each of the 10 client PCs to a network router.
  D. Connect each of the 10 client PCs to a network hub.
  E. Use a ring physical network topology.
  F. Use a mesh physical network topology.
  A. Connect each of the 10 client PCs to a network switch.
  B. Use a star physical network topology.