Cisco 350-020 Online Practice Questions and Exam Preparation

Cisco 350-020 Online Questions & Answers

• Question 81:

  The Gigabit Ethernet Transponder mode on the G. series card provides:

  A. Mapping of a single line-rate Gigabit Ethernet interfaces onto individual CWDM or DWDM line- side wavelengths, requiring cross connect capacity.
  B. Mapping of up to 2 line-rate Gigabit Ethernet interfaces onto individual CWDM or DWDM line- side wavelengths without requiring cross connect capacity.
  C. Mapping of up to 3 line-rate Gigabit Ethernet interfaces onto individual CWDM or DWDM line- side wavelengths, requiring cross connect capacity.
  D. Mapping of up to 4 sub-rate Gigabit Ethernet interfaces onto two individual CWDM or DWDM line side wavelengths without requiring cross connect capacity.
  B. Mapping of up to 2 line-rate Gigabit Ethernet interfaces onto individual CWDM or DWDM line- side wavelengths without requiring cross connect capacity.

• Question 82:

  The TCP PUSH flag indicates:

  A. The data in the TCP receive buffer should be sent to the application listening to this TCP connection without waiting for further data.
  B. Any data being buffered by routers between the source and destination for this connection should be sent immediately.
  C. The sender should make certain its send buffer is pushed onto the wire.
  D. This session is about to end.
  A. The data in the TCP receive buffer should be sent to the application listening to this TCP connection without waiting for further data.
  C. The sender should make certain its send buffer is pushed onto the wire.

• Question 83:

  For SONET Ring switching, the 50ms switch time applies to:

  A. 50 ms, not including detection time
  B. For rings smaller than 100km
  C. For rings smaller than 2000km
  D. Up to 64 nodes
  E. Up to 254 nodes
  A. 50 ms, not including detection time

• Question 84:

  Click the Exhibit button to view the graph.

  

  The graph represents optical signal power versus wavelength measurement from 1550nm to 1560nm. The laser type that provides very narrow spectral widths, (<10ukHz) in the 1550nm range for DWDM applications (as shown in the graph), is an example of a:

  A. Red Light Emitting Diode laser
  B. Fabry-Perotlaser
  C. Distributed Feedback laser
  D. Edge Emitting LED laser
  E. Vertical Cavity Surface Laser
  C. Distributed Feedback laser

• Question 85:

  What is Fast EtherChannel?

  A. A feature to bundle multiple Ethernet point-to-point links quickly into one logical high speed link
  B. A feature to bundle multiple Fast-Ethernet point-to-point links into one logical high speed link
  C. Another name for full-duplex Fast Ethernet
  D. Another name for Gigabit Ethernet
  E. None of the above
  B. A feature to bundle multiple Fast-Ethernet point-to-point links into one logical high speed link

• Question 86:

  Why is an STM-1 2F MS-SPRing not feasible?

  A. An equal amount of working and protect bandwidth is needed per span.
  B. Standards have not yet been defined for STM-1 MS-SPRings.
  C. There is not enough bandwidth in an STM-1 ring to justify MS-SPRing configuration.
  D. DCC bandwidth is not large enough to handle K1/K2 processing.
  E. Switch times would exceed 50ms on an STM-1 MS-SPRing.
  A. An equal amount of working and protect bandwidth is needed per span.

• Question 87:

  How can traffic be restored if a failure results in loss of working traffic only in a 4F BLSR?

  A. Path switching
  B. Span switching
  C. Ring switching
  D. Label switching
  E. Node switching
  B. Span switching

• Question 88:

  What is the primary benefit of the "time-to-live" field in the IP header?

  A. To improve buffer utilization
  B. To reduce the impact of routing loops
  C. To allow calculation of round-trip delays
  D. To remind us that all earthly joys are fleeting
  E. To avoid delivery of packets that are no longer useful
  B. To reduce the impact of routing loops

• Question 89:

  Click the Exhibit button.

  

  When the G. series card Rx interface at "A" in the diagram loses it's receive signal, what occurs?

  A. The G. series card at "A" reports link down and sends an AIS alarm upstream.
  B. The G. series card at "A" reports link down, but the SONET path remains up.
  C. The Tx signal on the G. series card at either end of the circuit is shut off, causing the device connected to each G. series card to report link down.
  D. The Tx signal on the G. series at "A" is shut off, but the Tx signal on the G. series at "E" remains on to maintain link integrity.
  C. The Tx signal on the G. series card at either end of the circuit is shut off, causing the device connected to each G. series card to report link down.

• Question 90:

  How many DS-3s can be mapped to one STM-1 frame?

  A. 1
  B. 3
  C. 7
  D. 21
  E. 28
  B. 3