
1) Keep after sch
Found on
https://www.crosswordclues.com/clue/dtn

delay-tolerant network. Any network which works independent of delay times between nodes. Originally used to describe an astronautical overlay or `InterPlaNet` for Internet protocols like IP - using hop-by-hop transmission and storage to shuttle information across solar system sized distances and their inevitable speed-of-light delays. The relevant IETF group is DTNRG. Now DTN techniques are being applied to terrestrial systems. DTN uses the store and forward model of email or SMS and the diverse routing of fault tolerant networks.
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Found on
http://www.encyclo.co.uk/visitor-contributions.php
No exact match found.