15-440DistributedSystemsFinalExamSOLUTIONName:ndre!: IDDe"ember1#$#011%&lease!ritey'urnameandndre!IDab'(ebe)'re startin* t+isexam,%T+isexam+as15-a*es$in"ludin*t+istitle-a*e, &lease"'n)irmt+at all-a*esare -resent,%T+isexam+asat'tal') .0 -'ints,/uesti'n &'ints S"'re1 .# 00 14 1#5 101 1#2 10. 13 10T'tal: .0S+'rt ns!ers4ir"leTrue'r Falseas a--r'-riate, TrueFalseDNSisdele*ated +i e r a r " +i " a l l yb y+a(in*$ e , * ,$ t+er''tn'des tellres'l(ers!+i"+ser(erst'5uery)'r6,"'m7$ands''n$untilt+e"lient8s5uery"anbeans!ered,S'luti'n:TrueTrueFalseD'mainNameSystem9DNS:res'l(ers use &ax'sandin(alidati'nmes- sa*est'maintain t+e"'nsisten"y') "a"+edre"'rds,S'luti'n:FalseTrueFalseIn T'r8s6'ni'n r'utin*7$a"'m-r'mised n'de int+e middle ')t+enet!'r;"anidenti)yt+e"lientanddestinati'n!ebsite')t+e"'mmu-ni"ati'n,S'luti'n: False,TrueFalseI)t+eser(era"lient"'mmuni"ates!it+d'esn'tsu--'rtany)'rm')en"ry-ti'n9e,*,$+tt-s:$t+e"lients+'ulduseT'rs't+atn'b'dy"an'(er+earitstra))i",S'luti'n: False,TrueFalseS'me 4'ntent Deli(eryNet!'r;s94DNs:useDNS res-'nsest'dire"t "lientst't+e"l'sest4DN"a"+e,S'luti'n:True,TrueFalsema