Cisco 351-001 Online Practice Questions and Exam Preparation

Cisco 351-001 Online Questions & Answers

• Question 411:

  DRAG DROP

  Drag and drop the multicast protocol or feature on the left to the correct address space on the right.

  Select and Place:

  

  

• Question 412:

  DRAG DROP

  Drag and drop each step in the performance-monitoring configuration process on the left into the correct order on the right.

  Select and Place:

  

  

• Question 413:

  Refer to the exhibit.

  

  Which configuration must you apply to router R2 to enable BFD?

  E. Exhibit A
  F. Exhibit B
  G. Exhibit C
  H. Exhibit D
  A

• Question 414:

  Which two statements about PIM-DM are true? (Choose two.)

  A. It forwards multicast packets on a source tree.
  B. It requires an RP.
  C. It forwards multicast packets on a shared distribution tree.
  D. It floods multicast packets to neighbors that have requested the data.
  E. It floods multicast packets throughout the network.
  F. It forwards multicast packets to neighbors that have requested the data.
  A. It forwards multicast packets on a source tree.
  E. It floods multicast packets throughout the network.

• Question 415:

  What are the three primary components of NetFlow? (Choose three.)

  A. Flow caching
  B. A flow collector
  C. The data analyzer
  D. Flow sequence numbers
  E. Cisco Express Forwarding
  F. Multicast
  A. Flow caching
  B. A flow collector
  C. The data analyzer

  ---

  NetFlow includes three key components that perform the following capabilities:

  ?Flow caching analyzes and collects IP data flows entering router or switch interfaces and prepares data for export. It enables the accumulation of data on flows with unique characteristics, such as IP addresses, application, and CoS. ?

  FlowCollector and Data Analysis captures exported data from multiple routers and filters and aggregates the data according to customer policies, and then stores this summarized or aggregated data. Users can leverage Cisco NetFlow

  collector as a flow collector, or they can opt for a variety of third-party partner products. A Graphical user interface displays and analyzes NetFlow data collected from FlowCollector files. This allows users to complete near-real-time

  visualization or trending analysis of recorded and aggregated flow data. Users can specify the router and aggregation scheme and desired time interval.

  Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios- netflow/product_data_sheet0900aecd80173f71.html

• Question 416:

  Which encapsulation is used when deploying EIGRP OTP?

  A. GRE
  B. LISP
  C. PPP
  D. dot1q
  E. MPLS
  F. ISL
  B. LISP

• Question 417:

  Refer to the exhibit,

  

  what the effect of the given configuration?

  A. OSPF and EIGRP will perform mutual redistribution
  B. Network 10.10.1.0/24 will be redistributed in EIGRP
  C. Unless the subnets keyword is added to the redistribute command, subnetted networks will be excluded from OSPF
  D. The routing table will show a metric of 10 for routes redistributed from EIGRP
  C. Unless the subnets keyword is added to the redistribute command, subnetted networks will be excluded from OSPF

• Question 418:

  Which two statements about private VLANs are true? (Choose two.)

  A. Only one isolated VLAN can be mapped to a primary VLAN.
  B. Only one community VLAN can be mapped to a primary VLAN.
  C. Multiple isolated VLANs can be mapped to a primary VLAN.
  D. Multiple community VLANs can be mapped to a primary VLAN.
  A. Only one isolated VLAN can be mapped to a primary VLAN.
  D. Multiple community VLANs can be mapped to a primary VLAN.

  ---

  An isolated VLAN is a secondary VLAN that carries unidirectional traffic upstream from the hosts toward the promiscuous ports. You can configure only one isolated VLAN in a PVLAN domain. An isolated VLAN can have several isolated

  ports. The traffic from each isolated port also remains completely separate. Only one isolated VLAN can be mapped under a given primary VLAN.

  A community VLAN is a secondary VLAN that carries upstream traffic from the community ports to the promiscuous port and to other host ports in the same community. You can configure multiple community VLANs in a PVLAN domain. The

  ports within one community can communicate, but these ports cannot communicate with ports in any other community or isolated VLAN in the private VLAN.

  Reference:

  http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus6000/sw/layer2/6x/b_6k_L ayer2_Config_6x/b_6k_Layer2_Config_602N12_chapter_011.html

• Question 419:

  You are configuring Wireshark on a Cisco Catalyst 4500E Switch with a Supervisor 8. Which three actions can you take to prevent the capture from overloading the CPU? (Choose three.)

  A. Attach the specific ports that are part of the data path.
  B. Use an in-line filter.
  C. Use an appropriate ACL.
  D. Add memory to the Supervisor.
  E. Reconfigure the buffers to accommodate the additional traffic.
  F. Configure a policy map, class map, and an access list to express the match conditions.
  A. Attach the specific ports that are part of the data path.
  B. Use an in-line filter.
  C. Use an appropriate ACL.

  ---

  Because packet forwarding typically occurs in hardware, packets are not copied to the CPU for software processing. For Wireshark packet capture, packets are copied and delivered to the CPU, which causes an increase in CPU usage. To

  avoid high CPU, do the following:

  Attach only relevant ports.

  Use a class map, and secondarily, an access list to express match conditions. If neither is viable, use an explicit, in-line filter. Adhere closely to the filter rules. Restrict the traffic type (such as, IPv4 only) with a restrictive, rather than relaxed

  ACL, which elicits unwanted traffic.

  Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/15-1- 2/XE_340/configuration/guide/config/wireshrk.pdf

• Question 420:

  Which statement is true about VPLS?

  A. MPLS is not required for VPLS to work.
  B. VPLS carries packets as Layer 3 multicast.
  C. VPLS has been introduced to address some shortcomings of OTV.
  D. VPLS requires an MPLS network.
  D. VPLS requires an MPLS network.

  ---

  VPLS uses MPLS labels so an MPLS network is required. VPLS MPLS packets have a two-label stack. The outer label is used for normal MPLS forwarding in the service provider's network. If BGP is used to establish the VPLS, the inner label is allocated by a PE as part of a label block. If LDP is used, the inner label is a virtual circuit ID assigned by LDP when it first established a mesh between the participating PEs. Every PE keeps track of assigned inner label, and associates these with the VPLS instance.

  Reference: http://en.wikipedia.org/wiki/Virtual_Private_LAN_Service