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Thank &nbsp;you, I wanted to be sure.
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Does penultimate mean second to last frame in this sentence?: &quot;all frames prior to the penultimate frame use the NAV to lock the medium for the next frame.&quot;<br />
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From: 802.11 Wireless Networks: Definitive Guide, 2nd Edition
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Does penultimate mean second to last frame in this sentence?: "all frames prior to the penultimate frame use the NAV to lock the medium for the next frame."

From: 802.11 Wireless Networks: Definitive Guide, 2nd Edition

Does penultimate frame mean the second to last frame?

The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.