Cisco 642-874 Online Practice Questions and Exam Preparation

Cisco 642-874 Online Questions & Answers

• Question 131:

  What Nexus technology avoids blocking links between the access layer and the aggregation layer in a data center network design?

  A. FCoE
  B. LACP
  C. vPC
  D. FEX
  C. vPC

• Question 132:

  Which statement about Fibre Channel communications is correct?

  A. N_Port to N_Port connections use logical node connection points.
  B. Flow control is only provided by QoS.
  C. It must be implemented in an arbitrated loop.
  D. Communication methods are similar to those of an Ethernet bus.
  A. N_Port to N_Port connections use logical node connection points.

• Question 133:

  DRAG DROP

  Select and Place:

  

  

• Question 134:

  Which of the following two statements about Cisco NSF and SSO are the most relevant to the network designer? (Choose two.)

  A. You can reduce outages to 1 to 3 seconds by using SSO in a Layer 2 environment or Cisco NSF with SSO in a Layer 3 environment.
  B. SSO and NSF each require the devices to either be graceful restart-capable or graceful restart- aware.
  C. In a fully redundant topology adding redundant supervisors with NSF and SSO may cause longer convergence times than single supervisors with tuned IGP timers
  D. The primary deployment scenario for Cisco NSF with SSO is in the Distribution and Core layers.
  E. Cisco NSF-aware neighbor relationships are independent of any tuned IGP timers
  A. You can reduce outages to 1 to 3 seconds by using SSO in a Layer 2 environment or Cisco NSF with SSO in a Layer 3 environment.
  C. In a fully redundant topology adding redundant supervisors with NSF and SSO may cause longer convergence times than single supervisors with tuned IGP timers

• Question 135:

  An engineer is designing an address plan. Which IPv6 prefix removes any consideration regarding the number of hosts per subnet?

  A. /32
  B. /48
  C. /64
  D. /96
  C. /64

• Question 136:

  Which IPv6 transition model should be utilized when two or more independent transition mechanisms are required?

  A. tunneling
  B. dual stack
  C. service block
  D. hybrid
  E. manual
  D. hybrid

• Question 137:

  Addressing QoS design in the Enterprise Campus network for IP Telephony applications means what?

  A. It is critical to identify aggregation and rate transition points in the network, where preferred traffic and congestion QoS policies should be enforced
  B. Suspect traffic should be dropped closest to the source, to minimize wasting network resources
  C. An Edge traffic classification scheme should be mapped to the downstream queue configuration
  D. Applications and Traffic flows should be classified, marked and policed within the Enterprise Edge of the Enterprise Campus network
  A. It is critical to identify aggregation and rate transition points in the network, where preferred traffic and congestion QoS policies should be enforced

• Question 138:

  Which two options are storage topologies? (Choose two.)

  A. WAS
  B. DAS
  C. CAS
  D. NAS
  B. DAS
  D. NAS

• Question 139:

  Which option is an advanced WAN services design consideration for a multipoint architecture that connects two or more customer devices using Ethernet bridging techniques over an MPLS network?

  A. VPLS
  B. Metro Ethernet
  C. MPLS
  D. SONET/SDH
  A. VPLS

• Question 140:

  A customer requires resiliency and availability for applications hosted in the data center. What two technologies meet this requirement? (Choose two.)

  A. SLB
  B. LTM
  C. GLBP
  D. GTM
  E. HSRP
  B. LTM
  D. GTM