Cisco 350-020 Online Practice Questions and Exam Preparation

Cisco 350-020 Online Questions & Answers

• Question 281:

  In Frame Relay, the FECN bit is set by:

  A. The Frame Relay network, to inform the DTE receiving the frame that congestion was experienced in the path from source to destination
  B. The Frame Relay network, in frames traveling in the opposite direction from those frames that encountered congestion
  C. The receiving DTE, to inform the Frame Relay network that it is overloaded and that the switch should throttle back
  D. The sending DTE, to inform the Frame Relay network that it is overloaded and that the switch should throttle back
  E. Any device that uses an extended DLCI address
  A. The Frame Relay network, to inform the DTE receiving the frame that congestion was experienced in the path from source to destination

• Question 282:

  Click the Exhibit button.

  

  If you have a fiber cut on all four fibers between nodes C and D in the following diagram put the events listed below in correct chronological sequence.

  1.

  node A loops back traffic in the direction of node E

  2.

  node D initiates a line switch and signals the fact in the K2 byte

  3.

  node C loops back traffic in the direction of node B

  4.

  both sides switch traffic to the protect channel and the circuit is restored in less than 50 ms

  5.

  nodes C detects the loss of signal and signals the fact in the K1 byte

  A. 1,2,5,3,4
  B. 2, 1,5,3,4
  C. 5,3, 1,2,4
  D. 5,3,4, 1,2
  C. 5,3, 1,2,4

• Question 283:

  

  With a router connected to node E, and a laptop connected to node C, in what node would you put a static route to access this network from an external IP network?

  A. None. A static route is only required when OSPF is disabled on the DCC and each node is a on a different subnet.
  B. In Node E
  C. In Node B
  D. In Nodes B and D
  B. In Node E

• Question 284:

  A router is set up to redistribute routing updates from OSPF to RIP. What answer best describes issues the network administrator needs to be aware of?

  A. Split Horizon, Poison Reverse, Holddown
  B. Slow convergence, limited hop-count metric, lack of network mask information, periodic broadcasts
  C. None, OSPF is a link-state routing protocol, which overcomes issues found in RIP.
  D. Difference in metrics (e.g. hops vs. cost), subnet mask allocation/addressing (e.g. VLSM vs. fixed subnet mask length), routing mprotocol summarization (e.g. network boundaries)
  D. Difference in metrics (e.g. hops vs. cost), subnet mask allocation/addressing (e.g. VLSM vs. fixed subnet mask length), routing mprotocol summarization (e.g. network boundaries)

• Question 285:

  In Fiber optic communication systems, a pulse is said to be chirped if its carrier frequency changes with: A. Distance

  B. Time
  C. Group Delay
  D. Velocity
  E. Wavelength
  B. Time

• Question 286:

  When an ML-series RPR ring is provisioned over a SONET BLSR (or SDH MS-SPR) ring, the ML architecture can no longer utilize the full available bandwidth on the SONET/SDH ring due to the constraints of BLSR. Which features are being introduced to allow use of discontiguous timeslots and BLSR protect channels when provisioning ML-series RPR rings, in order to alleviate this limitation?

  A. Software Link Capacity Adjustment Scheme (SW-LCAS)
  B. Low Order Virtual Concatenation (LO-VCAT)
  C. Framed Generic Framing Procedure (GFP-F)
  D. High Order Virtual Concatenation (HO-VCAT)
  E. Bridge Control Protocol (BCP)
  A. Software Link Capacity Adjustment Scheme (SW-LCAS)
  D. High Order Virtual Concatenation (HO-VCAT)

• Question 287:

  Which three events might you diagnose as the cause of a line switching event?

  A. Loss of signal and frame
  B. Line AIS (all ones in STS pointer)
  C. Routine exercises
  D. Excessive signaling messages
  E. Excessive bit errors in overhead
  F. Switched photon elements
  A. Loss of signal and frame
  B. Line AIS (all ones in STS pointer)
  E. Excessive bit errors in overhead

• Question 288:

  What statement about DCC tunneling in the ONS 15454 is true?

  A. Only the first STS frame in any OC-n signal is used for tunneling.
  B. For security reasons, the 15454 randomly assigns an STS frame from within any OC-n signal to be used for tunneling.
  C. A different STS frame is used on each section of the ring, to prevent overlap or conflict on the protection path.
  D. Only the last STS frame in any OC-n signal is used for tunneling (this feature is also used as a bit rate indicator).
  A. Only the first STS frame in any OC-n signal is used for tunneling.

• Question 289:

  MPLS does not support:

  A. Multicast
  B. OSPF
  C. BGP
  D. Multicast and OSPF
  A. Multicast

• Question 290:

  Click the Exhibit button.

  

  With a router connected to node E, and a laptop connected to node C, in what node would you put a static route to access this network from an external IP network?

  A. None. A static route is only required when OSPF is disabled on the DCC and each node is a on a different subnet.
  B. In Node E
  C. In Node B
  D. In Nodes B and D
  B. In Node E