[DNS Exercise 2.2] DNS Worksheet Domain name to test: __________________________________ Query type: "A" 1. Start at any root server # dig +norec @k.root-servers.net. _____________________ a 2. Referral: what NS records were returned in the "authority" section? List them here. 3. Repeat your query for every NS record found in step 2. Was the response a referral or a final authoritative answer? List the response here. Did every server respond? ____ Were the responses the same? _____ 4. If step 3 was a referral, repeat again for every NS record found. List the response here. Did every server respond? ____ Were the responses the same? _____ Continue for further referrals if necessary. 5. Checklist: - did all the nameservers give a response? - did they all give either a referral to a subdomain, or an AA (Authoritative Answer)?o - were all the answers from each group of nameservers the same? - did each group consist of at least two nameservers on two different networks? For the final set of authoritative servers: - did the list of NS records in the Authority Section match the list of nameservers in the referral from above? - were the TTL values reasonable?