Cisco 642-873 Online Practice Questions and Exam Preparation

Cisco 642-873 Online Questions & Answers

• Question 91:

  Refer to the exhibit. Which functionality must be enabled on router A to connect two networks for translating private addresses into "legal" public addresses on a one-for-one basis?

  A. PAT
  B. NAT
  C. VLAN
  D. GARP
  E. PPP
  B. NAT

• Question 92:

  What is the purpose of an OTV edge device?

  A. connect to other data centers
  B. connect to the access layer
  C. connect to the end users
  D. connect to mobile devices
  A. connect to other data centers

• Question 93:

  NBAR is deployed on the network as part of network optimization. Which technology is critical to recognize new applications on the network?

  A. PDLM
  B. ACLs
  C. code upgrade
  D. additional licenses
  A. PDLM

• Question 94:

  Which two ways to support secure transport of multicast traffic are true? (Choose two.)

  A. Use spoke-to-spoke design.
  B. Use IPsec over GRE tunnel.
  C. Use GET VPN.
  D. Use NBMA instead of broadcast.
  E. Disable encryption for multicast traffic.
  B. Use IPsec over GRE tunnel.
  C. Use GET VPN.

• Question 95:

  Which three options are features of IP SLAs? (Choose three.)

  A. enables verification of service guarantees
  B. dynamically adjusts QoS parameters
  C. validates network performance and metrics
  D. initiates failover for saturated links
  E. proactively identifies network related issues
  A. enables verification of service guarantees
  C. validates network performance and metrics
  E. proactively identifies network related issues

• Question 96:

  The network engineering team is interested in deploying NAC within the enterprise network to enhance security. What deployment model should be used if the team requests that the NAC be logically inline with clients?

  A. Layer 2 in-band
  B. Layer 2 out-of-band
  C. Layer 3 in-band
  D. Layer 3 out-of-band
  B. Layer 2 out-of-band

• Question 97:

  Which type of connectivity is required for VPLS?

  A. full mesh
  B. partial mesh
  C. star
  D. bus
  E. ring
  A. full mesh

• Question 98:

  Which four primary attributes define a WAN service? (Choose four.)

  A. bandwidth
  B. bursting capacity
  C. memory
  D. CPU
  E. QoS classes and policies
  F. latency
  G. multicast support
  A. bandwidth
  B. bursting capacity
  E. QoS classes and policies
  G. multicast support

• Question 99:

  Which technology extends Layer 2 LANs over any network that supports IP?

  A. OTV
  B. VSS
  C. vPC
  D. VLAN
  A. OTV

• Question 100:

  Which technology is an example of the need for a designer to clearly define features and desired performance when designing advanced WAN services with a service provider?

  A. FHRP to remote branches
  B. Layer 3 MPLS VPNs secure routing
  C. Control protocols (for example Spanning Tree Protocol) for a Layer 3 MPLS service
  D. Intrusion prevention, QoS, and stateful firewall support network wide
  B. Layer 3 MPLS VPNs secure routing