Suggestions for interview questions

[David Nicol]

On 11/17/05, Luke-Jr <luke at dashjr.org> wrote:

> > Q.    What type of DNS record is associated with email servers
> > a.    MX /Mail Exchanger  and Reverse DNS   (99% will miss Reverse DNS
> > unless they have ran their own mail server)

MX is the answer.  "DNS record" is singular.  If the Q asked for "records are"
then MX, A, PTR and TXT should all be there.  Extra points if they explain
that MX records should resolve to A records, not CNAME records.  Advanced
question: "Why is having a MX that points to a CNAME a problem?"  Extra
points if they know DJB's middle name.