Information Technology Specialist (ITS) Cybersecurity Practice Exam

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To instruct the DNS server to check other servers for information, what command should be run using NSLookup?

  1. nslookup set search

  2. nslookup set recurse

  3. nslookup set modify

  4. nslookup set query

The correct answer is: nslookup set recurse

Using the command "nslookup set recurse" instructs the DNS server to perform recursive queries, meaning that if the server does not have the requested information cached, it will query other DNS servers on the internet to find the answer. This is essential for resolving domain names to their corresponding IP addresses when the local server cannot provide that information directly. This command enhances the DNS lookup process by letting the server engage in a broader search, which is critical for accessing domains that may not be directly known or stored in its records. The recursion process allows users and applications to obtain accurate and complete DNS resolution without having to query multiple servers manually.

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