You used the dig command in a Linux terminal window to produce the following output:

; $<<>>$ DiG $8\mathrm{.}2<<>>$ westsim$111.$com

;;res options:init recurs defnam dnsrch

;;got answer:

;;$->>$HEADER$<<-$opcode:QUERY, status: NOERROR, id:$4$

;;flags: qr rd ra; QUERY:$1,$ ANSWER:$1,$ AUTHORITY:$2,$ ADDITIONAL:$0$

;;QUERY SECTION:

;; westsim$111.$com, type $=$ A$,$ class $=$ IN

;;ANSWER SECTION:

westsim$111.$com. $7$h$33$m IN A $76\mathrm{.}141\mathrm{.}43\mathrm{.}129$

;;AUTHORITY SECTION:

westsim$111.$com. $7$h$33$m IN NS dns$1.$deriatct$111.$com.

westsim$111.$com. $7$h$33$m IN NS dns$2.$deriatct$222.$com.

;;Total query time: $78$ msec

;;FROM: localhost.localdomain to SERVER:default $--202\mathrm{.}64\mathrm{.}49\mathrm{.}150$

;;WHEN: Tue Feb $1623$:$21$:$242005$

;;MSG SIZE sent: $30$ rcvd:$103$

What is the IP address of the DNS server that performed this name resolution?

answer

$192\mathrm{.}168\mathrm{.}1\mathrm{.}100$

$76\mathrm{.}141\mathrm{.}43\mathrm{.}129$

$202\mathrm{.}64\mathrm{.}49\mathrm{.}150$

$16\mathrm{.}23\mathrm{.}21\mathrm{.}24$