Drag and drop each MPLS role on the left to its matching function on the right.
Drag a concept onto its matching description — or click a concept then click the description.
Forwards MPLS packets by performing label lookup and swapping
Pushes labels on ingress and pops labels on egress
Core router that swaps labels without pushing or popping
Edge router that connects customer sites and runs MPLS VPNs
Customer edge router that connects to the PE
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
LSR: Forwards MPLS packets by performing label lookup and swapping
LSR forwards packets based on labels, LER pushes/pops labels at the edge, P is a core LSR that only swaps labels, PE provides VPN services at the edge, and CE is the customer device connecting to the MPLS network.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 18, 2026
This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.