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220-1102 · Question #540
220-1102 Question #540: Real Exam Question with Answer & Explanation
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Networking
Question
A technician is troubleshooting a PC that is unable to perform DNS lookups. Utilizing the following firewall output: Which of the following ports should be opened to allow for DNS recursion?
Options
- A1
- B53
- C80
- D123
- E445
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Topics
#DNS#Port numbers#Firewall