Cisco 350-029 Online Practice Questions and Exam Preparation

Cisco 350-029 Online Questions & Answers

• Question 201:

  Drag the actions on the left to the correct steps on the right to the show how to perform an IOS-XR upgrade.

  Select and Place:

  

  

• Question 202:

  Which two statements about RPF checks in Multicast Source Discovery Protocol (MSDP) are true? (Choose two)

  A. RPF check should be done against the route to the source of the corresponding PIM-SM domain.
  B. Checking session advertisement (SA) messages causes messages looping.
  C. The RPF check ensures that there is a working redundancy for anycast RPs.
  D. RPF check should be done against the route to the RP of the PIM-SM domain that originated the SA.
  E. It prevents message looping, and session advertisement (SA) messages must be RPF checked.
  D. RPF check should be done against the route to the RP of the PIM-SM domain that originated the SA.
  E. It prevents message looping, and session advertisement (SA) messages must be RPF checked.

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  SA Message Receipt

  SA messages are only accepted from the MSDP RPF peer that is in the best path back toward the originator. The same SA message arriving from other MSDP peers must be ignored or SA loops can occur. Deterministically selecting the

  MSDP RPF peer for an arriving SA message requires knowledge of the MSDP topology. However, MSDP does not distribute topology information in the form of routing updates. MSDP infers this information by using (M)BGP routing data as

  the best approximation of the MSDP topology for the SA RPF check mechanism. An MSDP topology, therefore, must follow the same general topology as the BGP peer topology. Besides a few exceptions (such as default MSDP peers and

  MSDP peers in MSDP mesh groups), MSDP peers, in general should also be (M)BGP peers.

  Rule 1 of RPF checking in MSDP is applied when the sending MSDP peer is also an i(M)BGP peer. When Rule 1 is applied, the RPF check proceeds as follows:

  The peer searches the BGP Multicast Routing Information Base (MRIB) for the best path to the RP that originated the SA message. If a path is not found in the MRIB, the peer then searches the Unicast Routing Information Base (URIB). If a

  path is still not found, the RPF check fails. If the previous search succeeds (that is, the best path is found), the peer then determines the address of the BGP neighbor for this best path, which will be the address of the BGP neighbor that sent

  the peer the path in BGP update messages.

• Question 203:

  When the default MDT is configured, a multicast tunnel interface is created dynamically.

  Which statement about MTI is true?

  A. The MTI takes on the interface characteristics of same interface.
  B. The MTI is the interface that connects the PE multicast environment to the service provider global environment.
  C. The MTI is the interface that connects the customer multicast environment to the service provider global environment.
  D. Unicast packets are forwarded over the MTI because this interface does not appear in the unicast routing table of the associated VRF.
  C. The MTI is the interface that connects the customer multicast environment to the service provider global environment.

• Question 204:

  Refer to the exhibit.

  

  A home office user sends IP datagrams from the local router, which sends Ethernet datagrams to the DSL modem. The DSL modem encapsulates the Ethernet frames in which frame format before sending them over the physical DSL link to DSLAM?

  A. RFC 1483
  B. PPPoE
  C. PPPoA
  D. IP over ATM
  A. RFC 1483

• Question 205:

  What is one of the primary overhead fields associated with the Optical Payload Unit (OPU)?

  A. path monitoring
  B. tandem connection monitoring activation deactivation (TCM ACT)
  C. Payload Structure Identifier (PSI)
  D. multiframe alignment signal (MFAS)
  E. section monitoring
  C. Payload Structure Identifier (PSI)

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  Optical Payload Unit (OPU)

  In order to begin describing the OTN as defined by the ITU G.709 standard, we must first enumerate its critical elements, their termination points, and the way they relate to one another in terms of hierarchy and function.

  The primary overhead field associated with the OPU is the payload structure identifier (PSI). This is a 256-byte multiframe whose first byte is defined as the payload type (PT). The remaining 255 bytes are currently reserved. The other fields

  in the OPU overhead are dependent on the mapping capabilities associated to the OPU. For an asynchronous mapping (the client signal and OPU clock are different) justification control (JC) bytes are available to Application Note

  153Telecom Test and Measurement compensate for clock rate differences. For a purely synchronous mapping (client source and OPU clock are the same), the JC bytes become reserved. Further details on mapping are available in ITU

  G.709.

• Question 206:

  Which option is the main task of the BGP I/O?

  A. handles queuing and processing of BGP packets
  B. performs BGP peer establishment
  C. imports and exports routes into a particular VPN routing and forwarding instance
  D. calculates the best BGP path
  E. interacts with the routing information base
  A. handles queuing and processing of BGP packets

• Question 207:

  Which three of these statements about the IP service level agreement (SLA) sender are true? (Choose three)

  A. SLA sender target can be an IP host
  B. SLA sender sends a probe packet and a response probe packet
  C. SLA sender sends a probe packet
  D. SLA sender target must be a router
  E. SLA sender target can be an IP SLA responder
  A. SLA sender target can be an IP host
  C. SLA sender sends a probe packet
  E. SLA sender target can be an IP SLA responder

• Question 208:

  A network architect is tasked to design and deploy multicast in a service provider core. There is a requirement to have two PIM RP routers for PIM-SM distribute mode. What can the network architect do to satisfy this requirement?

  A. Set two RPs with same priority.
  B. Set two RPs, one with high priority and the other with low priority.
  C. Set one RP as the main RP and another as a backup RP.
  D. Set the RP-BSR method with one high-priority RP and one low-priority RP.
  D. Set the RP-BSR method with one high-priority RP and one low-priority RP.

• Question 209:

  What is true regarding Cisco Network Registrar in Cable networks?

  A. It provides comprehensive Domain Name system
  B. It provides DHCP administrative functionality
  C. It provides TFTP server functionality.
  D. All of the above are true.
  D. All of the above are true.

• Question 210:

  A network engineer is trying to optimize convergence.

  What action should be taken to overcome EBGP frequent session loss due to interface flapping between two different AS routers?

  A. Tune the BGP session time-out.
  B. Disable bgp fast-external-fallover.
  C. Enable bgp fast-external fallover.
  D. Use disable-connected-check.
  E. Enable neighbor fall-over.
  B. Disable bgp fast-external-fallover.