Cisco 642-874 Online Practice Questions and Exam Preparation

Cisco 642-874 Online Questions & Answers

• Question 21:

  In a collapsed core design, which three benefits are provided by a second-generation Cisco MDS director? (Choose three.)

  A. a higher fan-out ratio
  B. fully redundant switches
  C. 100 percent port efficiency
  D. all ISLs contained within a single chassis
  E. higher latency and throughput than a core-edge design switch
  B. fully redundant switches
  C. 100 percent port efficiency
  D. all ISLs contained within a single chassis

• Question 22:

  Which two ways to manage scalability issues inside an IBGP domain with 20 or more routers are recommended? (Choose two.)

  A. Configure route reflectors.
  B. Use OSPF instead of EIGRP as an underlying routing protocol.
  C. Create a full mesh at Layer 1.
  D. Configure confederations.
  E. Configure static routes between all routers.
  A. Configure route reflectors.
  D. Configure confederations.

• Question 23:

  In base e-Commerce module designs, where should firewall perimeters be placed?

  A. core layer
  B. Internet boundary
  C. aggregation layer
  D. aggregation and core layers
  E. access and aggregation layers
  A. core layer

• Question 24:

  Source traffic is sent to a VIP on an SLB device, which in turn is routed to the destination server. Return traffic is policy-based routed back to the SLB.

  Which SLB design has been implemented?

  A. router mode
  B. inline bridge mode
  C. one-armed mode
  D. two-armed mode
  D. two-armed mode

• Question 25:

  Which two protocol characteristics should be most considered when designing a single unified fabric for the Data Center? (Choose two.)

  A. FCIP or FCoE allow for easier integration by using the Fibre Channel Protocol (FCP) and Fibre Channel framing
  B. iSCSI uses a special EtherType and an additional header containing additional control information
  C. FCIP and iSCSI has higher overhead than FCoE owing to TCP/IP
  D. FCoE was initially developed to be used as a switch-to-switch protocol, while FCIP is primarily meant to be used as an access layer protocol to connect hosts and storage to a Fibre Channel SAN
  E. FCoE requires gateway functionality to integrate into an existing Fibre Channel network
  A. FCIP or FCoE allow for easier integration by using the Fibre Channel Protocol (FCP) and Fibre Channel framing
  C. FCIP and iSCSI has higher overhead than FCoE owing to TCP/IP

• Question 26:

  A network engineer is designing an address plan based on network applications. Which application presents the greatest need for its own address block?

  A. IP telephony
  B. management
  C. multicast
  D. physical security
  A. IP telephony

• Question 27:

  Which statement is the most accurate regarding IPsec VPN design for an Enterprise Campus environment?

  A. VPN device IP addressing must align with the existing Campus addressing scheme.
  B. The choice of a hub-and-spoke or meshed topology ultimately depends on the number of remotes.
  C. Sizing and selection of the IPsec VPN headend devices is most affected by the throughput bandwidth requirements for the remote offices and home worker
  D. Scaling considerations such as headend configuration, routing protocol choice, and topology have the broadest impact on the design.
  D. Scaling considerations such as headend configuration, routing protocol choice, and topology have the broadest impact on the design.

• Question 28:

  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 29:

  Which three of these Metro service types map to E-Line (versus E-LAN) services that are defined by the Metro Ethernet Forum (MEF)? (Choose three.)

  A. Ethernet Private Line
  B. Ethernet Wire Service
  C. Ethernet Relay Service
  D. Ethernet Multipoint Service
  E. Ethernet Relay Multipoint Service
  A. Ethernet Private Line
  B. Ethernet Wire Service
  C. Ethernet Relay Service

• Question 30:

  Which two VPN solutions extend the routing capabilities of basic IPsec VPNs? (Choose two.)

  A. GRE
  B. NVI
  C. DES
  D. VTI
  E. AES
  A. GRE
  D. VTI