Cisco 640-911 Online Practice Questions and Exam Preparation

Cisco 640-911 Online Questions & Answers

• Question 81:

  How many bits are in an IPv4 address?

  A. 32
  B. 24
  C. 8
  D. 4
  A. 32

• Question 82:

  Which two MAC addresses are valid? (Choose two.)

  A. 00:10:74:C9:CD:C0
  B. 0010.CC71.4BF9.AE0E.AE0E
  C. 00:10:F9:F9:CC:70:8D:80
  D. 0010.E686.3ED4
  E. 0010.68F7
  A. 00:10:74:C9:CD:C0
  D. 0010.E686.3ED4

• Question 83:

  What are three modular Layer 3 processes in Cisco Nexus Operating System? (Choose three.)

  A. UDLD
  B. PIM
  C. HSRP
  D. STP
  E. OSPF
  F. Cisco Discovery Protocol
  B. PIM
  C. HSRP
  E. OSPF

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  "PIM is IP routing protocol-independent and can leverage whichever unicast routing protocols are used to populate the unicast routing table, including Enhanced Interior Gateway Routing Protocol (EIGRP), Open Shortest Path First (OSPF),

  Border Gateway Protocol (BGP), and static routes. PIM uses this unicast routing information to perform the multicast forwarding function. Although PIM is called a multicast routing protocol, it actually uses the unicast routing table to perform

  the RPF check function instead of building up a completely independent multicast routing table. Unlike other routing protocols, PIM does not send and receive routing updates between routers." http://www.cisco.com/en/US/docs/ios/

  solutions_docs/ip_multicast/White_papers/mcst_ovr.

  html#wp1009068

  "Hot Standby Router Protocol (HSRP) is a Cisco proprietary redundancy protocol for establishing a fault tolerant default gateway. In the configuration procedures, the specified interface must be a Layer 3 interface:" http://www.cisco.com/en/

  US/docs/switches/lan/catalyst3750/software/ release/12.2_55_se/c onfiguration/guide/swhsrp.html

  OSPF (Open Shortest Path First) - routing protocol.

• Question 84:

  A customer requires a Cisco Nexus 7000 Series Switch chassis to support Cisco NX-OS ISSU. Which feature is required?

  A. dual supervisors
  B. Advanced Services license
  C. Enterprise Services license
  D. redundant F and M modules
  E. multiple power supplies
  A. dual supervisors

• Question 85:

  What is the maximum allowable hop count for RIPv1?

  A. 4
  B. 8
  C. 12
  D. 15
  E. 16
  D. 15

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  "Without using RMTI, the hop count cannot exceed 15, otherwise it will be considered invalid." http://en.wikipedia.org/wiki/Routing_Information_Protocol

• Question 86:

  What are three characteristics of the Ethernet access method CSMA/CD? (Choose three.)

  A. It allows many stations access to the same wire.
  B. It provides segmentation of a LAN.
  C. It allows a transmitting station to detect activity on the wire.
  D. It allows for detection of collisions on the wire.
  E. It provides broadcast capability on the wire.
  A. It allows many stations access to the same wire.
  C. It allows a transmitting station to detect activity on the wire.
  D. It allows for detection of collisions on the wire.

• Question 87:

  What option tests hardware to verify that all components of the device are operational and present?

  A. NVRAM
  B. POST
  C. BIOS
  D. Bootstrap
  B. POST

• Question 88:

  To improve security, a network engineer needs to configure an access list on a router. In which mode can this list be configured?

  A. global configuration
  B. user access
  C. user privileged
  D. interface configuration
  A. global configuration

• Question 89:

  What is the maximum distance for 100Base-TX?

  A. 10m
  B. 100m
  C. 400m
  D. 500m
  B. 100m

• Question 90:

  What is the decimal value of the hexadecimal number 0x718?

  A. 718
  B. 1816
  C. 2907
  D. 3511
  B. 1816

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  Decimal 1816 Binary 11100011000 Hexadecimal 0x718 Roman MDCCCXVI Dotted decimal 0.0.7.24