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H12-711_V4.0 · Question #407
H12-711_V4.0 Question #407: Real Exam Question with Answer & Explanation
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Question
Which of the following descriptions of the DNS protocol are correct? (Multiple Choice)
Options
- AThere are four types of servers in the DNS domain name resolution system: root server, top-level
- BDNS protocol port number is 53
- CThe DNS protocol transport layer can use either TCP or UDP
- DIf the DNS cache server does not have the domain name resolution cache to be queried, it will
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