Five Stars Perfect
Four Stars The content and delivery were great,but the cover is to thin
can I really trust it? I’ve not purchased this, but looked at the preview, the section on OSI and TCP/IP model relationship is not based on RFC1122 and lists the layers of the TCP/IP model wrong (Clue its only a 4 layered model not 5!) I’m also concerned about the definition of Simplex and Duplex, I’ve always understood that Simplex is one path or channel and bi-directional, with Duplex being two paths or channels, whilst I note the reference to ANSI and the ITU-T definitions the explanation is at best lacking…
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