Cisco 351-001 Online Practice Questions and Exam Preparation

Cisco 351-001 Online Questions & Answers

• Question 491:

  Refer to the exhibit.

  

  The PC is experiencing intermittent connectivity failures to the internet. If ADSL-R1 uses a PPPoE connection, what action can you take to correct the problem?

  A. Configure the same OSPF process on HomeRl and HomeSl.
  B. Configure an MTU of 1492 on the dialer interface on ADSL-R1.
  C. Configure OSPF on the connection between PC1 and HomeS1.
  D. Configure a system MTU of 1512 on ADSL-R1.
  E. Replace the dialer interface with a virtual template.
  B. Configure an MTU of 1492 on the dialer interface on ADSL-R1.

• Question 492:

  DRAG DROP

  Drag and drop the argument of the ip cef load-sharing algorithm command on the left to the function it performs on the right.

  Select and Place:

  

  

• Question 493:

  Which two options are signaling protocols that are used in MPLS? (Choose two.)

  A. LDP
  B. RSVP
  C. BFD
  D. LISP
  E. CLNS
  F. CDP
  A. LDP
  B. RSVP

  ---

  *

  Signaling is the means by which LSRs all along the path know that they are a part of a given LSP. It is a signaling function by which the LSR knows that the internal transit path for the LSP depicted goes from Interface 2 to Interface 4.

  *

  Label distribution is the means by which an LSR tells an upstream LSR what label value to use for a particular LSP. There are four protocols that can perform the label distribution function:

  *

  Label Distribution Protocol (LDP)

  *

  Resource Reservation Protocol with Traffic Engineering Extensions (RSVP-TE)

  *

  Constraint-Based Routed LDP (CR-LDP)

  *

  Multiprotocol BGP LDP and RSVP-TE are the two most commonly used label distribution protocols

  Reference: http://www.networkworld.com/article/2237487/cisco-subnet/understanding- mpls-label-distribution.html

• Question 494:

  External EIGRP route exchange on routers R1 and R2 was failing because the routers had duplicate router IDs. You changed the eigrp router-id command on R1, but the problem persists. Which additional action must you take to enable the routers to exchange routes?

  A. Change the corresponding loopback address.
  B. Change the router ID on R2.
  C. Reset the EIGRP neighbor relationship.
  D. Clear the EIGRP process.
  D. Clear the EIGRP process.

• Question 495:

  Which two methods do IPsec VTIs used to identify and transmit encrypted traffic through the tunnel? (choose two)

  A. static routing
  B. dynamic routing
  C. object groups
  D. ACLs
  E. NAT
  A. static routing
  B. dynamic routing

• Question 496:

  Which three fields are part of a TCN BPDU? (Choose three.)

  A. protocol ID
  B. version
  C. type
  D. max-age
  E. flags
  F. message age
  A. protocol ID
  B. version
  C. type

• Question 497:

  Refer to the exhibit.

  

  Video Source S is sending interactive video traffic to Video Receiver R. Router R1 has multiple routing table entries for destination R. Which load-balancing mechanism on R1 can cause out-of-order video traffic to be received by destination R?

  A. per-flow load balancing on R1 for destination R
  B. per-source-destination pair load balancing on R1 for destination R
  C. CEF load balancing on R1 for destination R
  D. per-packet load balancing on R1 for destination R
  D. per-packet load balancing on R1 for destination R

  ---

  Per-packet load balancing guarantees equal load across all links, however potentially the packets may arrive out-of-order at the destination as differential delay may exist within the network.

  Reference:

  http://www.cisco.com/en/US/products/hw/modules/ps2033/prod_technical_reference09186 a00800afeb7.html

• Question 498:

  DRAG DROP

  Drag and drop each description of IPv6 transition technology on the left to the matching IPv6 transition technology category on the right.

  Select and Place:

  

  

• Question 499:

  Refer to the exhibit.

  

  ICMP Echo requests from host A are not reaching the intended destination on host B. What is the problem?

  A. The ICMP payload is malformed.
  B. The ICMP Identifier (BE) is invalid.
  C. The negotiation of the connection failed.
  D. The packet is dropped at the next hop.
  E. The link is congested.
  D. The packet is dropped at the next hop.

  ---

  Here we see that the Time to Live (TTL) value of the packet is one, so it will be forwarded to the next hop router, but then dropped because the TTL value will be 0 at the next hop.

• Question 500:

  DRAG DROP

  Drag and drop the DMVPN command on the left to the corresponding function on the right.

  Select and Place: