Nokia Certified Network Professional – IP/MPLS Services — Question 28

What is a degree-1 node?

Answer options

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

Correct answer: A

Explanation

A degree-1 node is characterized by having only one direction, which classifies it as a terminal node. The other options describe different node characteristics that do not align with the definition of a degree-1 node, making them incorrect.