📝 Virtual Circuit Networks in Packet Switching

📖 From Data Communication & Networks • 8. Switching • 49 questions available

Practice MCQs for Virtual Circuit Networks in Packet Switching. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-31

Easy Questions

Medium Questions

Hard Questions

📝 Sample Questions

Q1. When a data‑link layer virtual‑circuit experiences a link failure, which immediate effect is most likely on the ongoing transmission?

🔹 A. The frame is rerouted through an alternate circuit without delay

🔹 B. The transmission is halted until the circuit is re‑established

🔹 C. Packets are converted to datagrams automatically

🔹 D. The switch ignores the failure and continues

💡 Difficulty: easy | ✅ Correct: B

Q2. If a virtual‑circuit network adopts a hierarchical labeling scheme, what analytical comparison can be made with a flat labeling scheme regarding scalability?

🔹 A. Hierarchical labeling scales worse because it adds complexity

🔹 B. Hierarchical labeling scales better because it aggregates routes

🔹 C. Both have identical scalability characteristics

🔹 D. Flat labeling scales better because it requires fewer bits

💡 Difficulty: medium | ✅ Correct: B

Q3. If a virtual‑circuit network employs a hierarchical address scheme, what conceptual benefit does this provide for routing table size?

🔹 A. It increases the size because more levels are added

🔹 B. It reduces the size by allowing aggregation of routes

🔹 C. It has no effect on table size

🔹 D. It eliminates the need for routing tables entirely

💡 Difficulty: hard | ✅ Correct: B

⬆️ View all questions in the quiz below

🔗 Related Topics

📝 Introduction to Switching in Physical Layer 📝 Three Methods of Network Switching 📝 Network Switching and TCP/IP Layers 📝 Circuit Switched Network in Physical Layer 📝 Three Phases of Circuit Switching Network

🚀 Start Quiz 📝 Practice Mode