You have just configured a DNS server.  Your security team mandates that you cannot use the root hint servers for external lookups.  Instead, all external lookups must go through the OpenDNS servers 208.67.220.220 and 208.67.222.222.  What mechanism in the DNS server setup lets you specify a specific DNS server to query for external lookups ?

A+ Guide To It Technical Support
10th Edition
ISBN:9780357108291
Author:ANDREWS, Jean.
Publisher:ANDREWS, Jean.
Chapter8: Network Infrastructure And Troubleshooting
Section: Chapter Questions
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You have just configured a DNS server.  Your security team mandates that you cannot use the root hint servers for external lookups.  Instead, all external lookups must go through the OpenDNS servers 208.67.220.220 and 208.67.222.222.  What mechanism in the DNS server setup lets you specify a specific DNS server to query for external lookups ?

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