Cisco 350-020 Online Practice Questions and Exam Preparation

Cisco 350-020 Online Questions & Answers

• Question 151:

  What is an Inter Switch Link (ISL)?

  A. A protocol to interconnect switches across ATM only
  B. A protocol to interconnect switches across FDDI only
  C. An IEEE protocol to interconnect multiple switches
  D. ACisco proprietary protocol for interconnecting multiple switches
  E. An IEEE protocol to interconnect multiple switches across Fast Ethernet
  D. ACisco proprietary protocol for interconnecting multiple switches

• Question 152:

  What signaling protocol does Cisco use to provide support for MPLS traffic engineering?

  A. RSVP
  B. LDP
  C. SS7
  D. TDP
  A. RSVP

• Question 153:

  What is the purpose of automatic gain control (AGC) in EDFA?

  A. Compensates gain tilt
  B. Balances transient power
  C. Serves as a variable optical attenuator
  D. Serves as a substitute to gain flattening filter
  B. Balances transient power

• Question 154:

  In order to avoid loops when sending routing updates, what is the correct technique to prevent a network from being forwarded on the same interface it is learned?

  A. Poison Reverse
  B. The use of access-lists used with distribute-list
  C. Split Horizon
  D. This is not a problem, since this cannot happen.
  C. Split Horizon

• Question 155:

  How much dispersion will a pulse accumulate in 20 km if it has a dispersion figure of 17 ps/nm/km?

  A. 34 ps/nm
  B. 68 ps/nm
  C. 340 ps/nm
  D. 680 ps/nm
  E. 3400 ps/nm
  C. 340 ps/nm

• Question 156:

  When a TCP segment is lost, the TCP sender reacts by: (multiple answer)

  A. Resending the segment
  B. increasing the window size
  C. Resetting the session
  D. Increasing the amount of time it will wait when timing out the next segment that is sent
  A. Resending the segment
  D. Increasing the amount of time it will wait when timing out the next segment that is sent

• Question 157:

  What is an active filter?

  A. Prisms
  B. Dielectric thin film interface filter
  C. Diffraction grating
  D. Semi-conductor filter
  E. Bragg Grating
  D. Semi-conductor filter

• Question 158:

  Optical Supervisory Channel that connects Cisco DWDM active platforms is:

  A. 192Kb/s and the 33rd Lambda
  B. Ethernet Framed and the 33rd Lambda
  C. 32nd Lambda and not framed
  D. 10G and the 33rd Lambda
  B. Ethernet Framed and the 33rd Lambda

• Question 159:

  Click the Exhibit to view the topology.

  

  Router B: ip route 10.1.3.0 255.255.255.0 ethernet 1 Router C: ip route 10.1.1.0 255.255.255.0 ethernet 1

  In this network, Host A is trying to reach Host D. There is no routing protocol running, but Router B and C have the following static routes configured:

  A. This will not work because Router B has no idea of how to forward traffic to the 10.1.3.0/24 network.
  B. This will work because Router B will recognize that Router C is on the 10.1.2.0/24 network through a router discovery protocol and will forward traffic for 10.1.3.0/24 to Router C.
  C. This will not work because a broadcast interface in a static route command cannot be specified.
  D. This will work because Router B will ARP for Host D's IP address on the 10.1.2.0/24 network and Router C will answer.
  D. This will work because Router B will ARP for Host D's IP address on the 10.1.2.0/24 network and Router C will answer.

• Question 160:

  Corning Leaf fiber has a spec of 2.0 - 6.0 ps/(nm.km) for dispersion. Subtract 10% from the 15454's OC-48 ELR dispersion tolerance for a margin of error. What is the maximum distance a signal from an OC-48 100GHz ELR card can go before becoming dispersion limited?

  A. 270 km
  B. 300 km
  C. 810 km
  D. 900 km
  C. 810 km