The answer is "b". TEI and SAPI are data link layer components of LAPD and
allow several logical links to exist over the same physical link by
providing unique layer two addresses.
Brad Nixon
""cslx"" <[EMAIL PROTECTED]> wrote in message
8rkdnk$foi$[EMAIL PROTECTED]">news:8rkdnk$foi$[EMAIL PROTECTED]...
> what does the combination of TEI &SAPI provide?
> a A unique network layer address
> b A unique datalink layer address
> c A unique phisical layer address
> d none of above
> which is correct,why?
>
>
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