4A0-205

4A0-205 practice questions, page 3 of 3, with answer review and explanations.

Question 11

What is a degree-1 node?

  1. A node with only one direction and therefore a terminal node
  2. A node with only one express channel and therefore made of two sides
  3. A node with only east and west sides without directions towards north and south
  4. A node with one direction only and therefore used as In-Line-Amplifier (ILA)

Question 12

With reference to trails and services, which of the following sentences is correct?

  1. Trails are transported over services; that is, trails are clients with respect to services.
  2. A trail can interconnect three ports, while a service always two.
  3. Services are transported over trails; that is, services are clients with respect to trails.
  4. A service is always associated to a single wavelength, while a trail can involve multiple wavelengths.

Question 13

What is a trail?

  1. An entity to encapsulate a low order signal into a high order container
  2. A transparent transport of a client signal
  3. A link between end points to increase the power budget of the optical link
  4. A physical link between two optical amplifiers