Local Delivery: Cabling, Ethernet & ARP

Covers Lesson 3 and Lesson 4

Checks whether you can account for every step that puts a frame on a wire and gets it to the right neighbour. It is also the readiness check for Lab 1 — its feeding lessons are exactly the lab's prerequisites.

Topics covered

• Cable selection and what Auto-MDIX changes
• Reading the two-part interface status
• Ethernet frame fields and MAC address structure
• ARP request, reply, and the local-only rule
• When a switch floods rather than forwards

Every question here is answerable from the first-party notes of the lessons above. You commit to an answer before you see whether it was right.

This quiz is a Week 1 milestone in its own right. Passing it does not change the completion state of any individual lesson, and you do not need it to finish the lessons it covers.

Section quiz

Local Delivery: Cabling, Ethernet & ARP

8 questions covering Lesson 3 and Lesson 4. Answer each one before you see whether you were right.

Question 1 of 8

1. You are connecting two switches to each other. Which cable does the classic rule call for, and why is it usually unnecessary on modern equipment?

2. An interface reports its status as administratively down / down. What does it need?

3. An interface shows up / down. Which layer should you investigate, and why?

4. What does the FCS at the end of an Ethernet frame do?

5. How long is a MAC address, and what does its first half identify?

6. What destination MAC address does an ARP request use, and what kind of frame is the reply?

7. Your host sends traffic to a server three networks away. Whose MAC address does ARP resolve for the outgoing frame?

8. A switch receives a unicast frame whose destination MAC is not in its address table. What does it do?

Back to Lesson 4 Continue to Lab 1

Back to Week 1