BitWithBite
CCNA Networking Worksheet
🌐 Address Resolution
SCORE___ / 20
NameClassDate
After this worksheet you can
Why ARP existsARP request/replyARP tableIPv6 neighbor discovery📚 Quick Recap
🎯 What you'll learn: Why we need both IP and MAC addresses, ARP (Address Resolution Protocol) operation for IPv4, ARP issues (broadcasts and spoofing), and IPv6 Neighbor Discovery (NDP) which replaces ARP for IPv6.
🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4
1ARP maps:
2An ARP request is sent as:
3The ARP reply is sent as:
4IPv6 replaces ARP with:
🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11
5show ip displays the ARP cache (Windows: arp -a).
6ARP spoofing is a attack risk.
7Walk through pinging a local host for the first time.
8Why is ARP a security weak spot?
9What is a gratuitous ARP?
🚀 Section C · Challenge ● CHALLENGE 5
10ARP vs DNS in one line?
💭 Reflection — the most useful thing I learned:
A ___/4 B ___/11 C ___/5 Total ___/20
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✂ answer key — fold or cut before handing out
1-A 2-A 3-A 4-A | 5 arp 6 man-in-the-middle/security 7 = No ARP entry - broadcast ARP request - reply with MAC - frame sent - ping proceeds 8 = Replies are unauthenticated - spoofing redirects traffic 9 = Unsolicited announcement of own IP-MAC (updates/dup detection) | 10 = DNS: name to IP; ARP: IP to MAC on the local link