Cisco 642-873 Online Practice Questions and Exam Preparation

Cisco 642-873 Online Questions & Answers

• Question 131:

  Which two key components are related to one firewall per ISP design option for e- commerce? (Choose two.)

  A. It is a common approach to single-homing.
  B. This approach is commonly used in large sites.
  C. Any failure on an edge router results in a loss of session.
  D. It has one NAT to two ISP-assigned blocks.
  E. It is difficult to set up and administer.
  C. Any failure on an edge router results in a loss of session.
  D. It has one NAT to two ISP-assigned blocks.

• Question 132:

  Which three options are benefits of using VRFs within an enterprise network? (Choose three.)

  A. simplifies configuration and troubleshooting
  B. enables partitioning of network resources
  C. enhances security between user groups
  D. provides additional redundancy at Layer 3
  E. allows for routing and forwarding separation
  F. improves routing protocol convergence
  B. enables partitioning of network resources
  C. enhances security between user groups
  E. allows for routing and forwarding separation

• Question 133:

  What is the correct state between two BGP peers that are neighbors?

  A. active
  B. operational
  C. established
  D. up
  C. established

• Question 134:

  Which option describes why duplicate IP addresses reside on the same network in Cisco network design?

  A. HSRP designed network
  B. using Cisco ACE in active/passive mode
  C. VRRP designed network
  D. running multiple routing protocols
  B. using Cisco ACE in active/passive mode

• Question 135:

  Which of the following is true concerning best design practices at the switched Access layer of the traditional layer2 Enterprise Campus Network?

  A. Cisco NSF with SSO and redundant supervisors has the most impact on the campus in the Access layer
  B. Provide host-level redundancy by connecting each end device to 2 separate Access switches
  C. Offer default gateway redundancy by using dual connections from Access switches to redundant Distribution layer switches using a FHRP
  D. Include a link between two Access switches to support summarization of routing information from the Access to the Distribution layer
  A. Cisco NSF with SSO and redundant supervisors has the most impact on the campus in the Access layer

• Question 136:

  A company implemented VoIP in a campus network and now wants a consistent method to implement using AutoQoS. Which two parameters must be considered before AutoQoS is configured? (Choose two.)

  A. CEF must be enabled.
  B. AutoQoS is available only on routers.
  C. Traffic discovery must be performed manually.
  D. No service policy can be applied already.
  E. Manual traffic analysis must be performed.
  A. CEF must be enabled.
  D. No service policy can be applied already.

• Question 137:

  Which two modes does LACP support? (Choose two.)

  A. on
  B. passive
  C. associated
  D. link
  A. on
  B. passive

• Question 138:

  Which part of the Layer 3 header is used to identify a flow in NetFlow but it is not used for NBAR?

  A. source port
  B. ToS
  C. protocol type
  D. source IP
  B. ToS

• Question 139:

  Which two of these correctly describe asymmetric routing and firewalls? (Choose two.)

  A. only operational in routed mode
  B. only operational in transparent mode
  C. only eight interfaces can belong to an asymmetric routing group
  D. operational in both failover and non-failover configurations
  E. only operational when the firewall has been configured for failover
  C. only eight interfaces can belong to an asymmetric routing group
  D. operational in both failover and non-failover configurations

• Question 140:

  Which three virtualization categories are in campus networks? (Choose three.)

  A. Layer 2 virtualization
  B. Layer 3 clustering
  C. network virtualization
  D. device virtualization
  E. network clustering
  F. device clustering
  C. network virtualization
  D. device virtualization
  F. device clustering