Networking in plain English. Cisco IP Classless Command. When Cisco routers have to forward packets, they will check their routing table and they use longest prefix matching to find the best match. If you donât have a best match then the router will use a default route (if you have one). Otherwise, the packet will be dropped.
Franklinâs images allowed James Watson and Francis Crick to create their famous two-strand, or double-helix, model. At Kingâs College London, Rosalind Franklin obtained images of DNA using X-ray crystallography, an idea first broached by Maurice Wilkins.
Simple Answer: James Watson and Francis Crick are credited with the first correct double-helix model of DNA structure published in 1953 in the journal Nature. More Complicat â¦ ed: Credit for the research leading to the discovery of the structure of DNA is controversial.