communication

1. Modul
The pra patln nadun wem
Cs-operatung appulabon
cliut e y pavadaG m
The cliunt n w Jul
StNe A Doaam
hatoWea CAnte
a Cann be uat ntuoov
A enver acupb a usst, bero ma il senna
Cond euns
C n A exeCuh proqran tak ends a pust
t amd Nopome
dad Corver Kela Ue wnset
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ime
CCop eb pa olotu of ttPage
d 9tu t o
to bounu.

2. 2
UDP cho ler ver
Teguut
Aunt' to
Sexve
Pot
Kospom
Sens t
iant
pov
diet Leve
Decho ve poa hagin by naotnat
with 0S ov pmiaig t w UDP Po
LD eatwed or eho derno, tLa UDP euho povt.
A thn permSSiem, eho ser veT enters
Aocp a t has i p
(1) wait fov dataqrnm o OYn at eko povt
c v u SouYCe omd deobnabon cddvrs
ttu) (n datagan ongial nendiy
ODP e cho lunt olleals a
a nustl
UDP pototol port, Sendo UDP mMa s Le
n d Loot ha. nop
UDP Lcho Jenve
The ent cto ba Lxacty Jame dct
os bent.

3. 3
D4feren brtuntomAA and i t
v
Stavts e b t n butore Am tera tion
and
t acLpt uAnls
bi nd Contul
term naing
And
hat
cut Aproqt an oniakt a ut
and bo . 9
hoit numbe
a woLrg
Was
i
hat hao boon sexed tte sinu oted.
dauts 9uus at a well
ten at
Cunt oG A Uocatio an
awbita unwwn
oY
e a Nves Port
eho beune
On
OY
) P qrammers ho dio , pllment, measuur
modik ntubk protol Aofloere
) Netoe Manen: Lsho t vui, nd dbua
tesb
An mumcalM pobWma U u euhs Aeveri
EaUss duleimins it o Possiblu ts hah a
S onachint .

4. nd Dati Sene
Set th Aysm
o k CtDna call
m
Cmtonotclly
Btomboo.
A maager Conhin dal maudna un
tmt-of-dayserrw. Lake otar machinds hoot, ttu
CondE e sunrer toobtain tu Current bm.
r TCP(LPkh epochdaz Janary 1,1100 and
M Lept m am 32-bt Cnteg The bme And
da 0e Aorrd aa th
o nt
pouh dat.
n d o sunce te
TKe Stndard ti 3on ki reonwieh Manlin(su
Th aversal hme
Wortu
The m oppuubn obtauna permSi w
93anr pot aig tSme rers. St a t
ths ODP dat-aran dirrhd t at potSE
opondo bbunding a UD menaK tht Centa
32-b t mt
C
70 uYrtt m m

5. 5
h kw pav Ma and Sa
Ms accqo wsto, hSt be oeo tivr ps
Open po1t Opem wel Lnoun po
Oat dint t nd r unt
Chooa Povt
StatSlore Stonts om
Amopendint, Conwrrent Alaue
k harle thio requt
Cobue Mao elw to waE Atap and
Co uws
aCLeptinas .
RARP Ser
Amathi'nea W RARP
ind J TPaddven
at Atatp. RARP chens bndasb Thi us
ans exeubng lARP Ser ver prbwmA
mswen k
Dierenc ARP Sevtv 4 UDPechssuvw
RARP SpAre UDP Eho AeTVEYbwe st
Pala tsarl dandly in
hodsart romD, Not
P datserama
Alours a lunt s
Contet a server anyo on
th mttint
i n t
oa ta o m LP datamn
Ort n t t a n phn al
al
Or
ult
Can be u t aPplutabaw
Yoarmo
UDP
Cant 2 implumend b
beawse ty w
om a r p u c a h n Yam
RCaA Thuy nd a w to
herosav paduls

6. 7
ttr te
Chx olosa vCdug CallA
pen- ncad -Lont- o
alls en t 4peul
Thi
deme ko he ue nd ohtans p mdD
Call pen 3ewno a Amall ndegud iu destnptav
Then O 0Y a (alls
tranohd d
Crad 2 Omt blcesThuee avmenlo
nth,no: oyh
duoprp5 , add w n of
callo
dranotu Complt U p rb.
i n b v , OS
Sbtt Abstra dion
a t pondis ad
a t A
Po
e C ra So t
Appualuern
Commumcalion
e uot OS toCeate a sockt
. Th ockt unban ras
p o a r A m o
dimar
9 t keo Taee Aguels
on
eu
o2ult e ukatPE,ypt,Prduel)

7. p4 prtel leily
t peihe ho t
t t r p r e k
add ewto,
Tce TP
i t e t
(PF_Iner
Dra hlL Sp PF UNIx)
kupe Apeo p Comm dasud
k So e_SFLEAMKlialaStenm
doivc erna
SocDGRAM(ConnncHlssdatnpn
toco l To ALonadai multbp pv
th y ,
kue Can he wad 4peuh
O pr to -
Sa
CaALA_Pip
aloa Srcam dalie aCviu bt
bt
w
cha n A unud Adeatt dlie
adhel
aCLomsdak ppe dusign
Aouut þ a fancbon
AoCa p (Pt,tP,pobu,Sarroy)
So Uat 1 ndAn and eranialion
creai a
ON1 t o r k e n tall
spd wr APplahan m Tho
a DFen Aodcets
lxeC p m Call , t
ww
Pphud ct allen ta all cn &ocketo.

8. Lhen prowonsh Astt, t cals
Clo
clo dotet)
Speuti a
otal addrt
Onu a souct kao belm realns, O emve
Uo t bid unbn t estetih lnca
oddrvo
onn d Ao uut, lodaddr , aldrun
A intaer dscnpi 4 th stkut
aladodr Peihes xad addy t hch t sot
Aaudo be boyd
osdlan SpecL kon t oddresin
3
Addr am Adreo Odes o-
I
AdamDces 2-s)_
Adve odebs -a)
ADdr oet (to- 13)
Addnddren damy 2
Add Ockt entain Tce|TP e
Fo T CP Adct oddvun incuudss both
P dd we ard Port nuhi
TelcP Aocut odJeoAtrucbure
Addruote pretocolA
Dwdzio)

9. COnnch Soctet to diobnation addvems
Conncb
Connedt Bind t ponmannt diotoln too
a bot An appulabon p a
Call CoNnRt t eoalsh a Conbiw
eee it Com tranot data
enlu Syyeo Socut.
Coarsct (Aott , dustadda,addbn)
Slcta a 9iall Atretan daliue u
PF TNtT e t TCP ACornmebon,
ndic dala ugh Sou
Onw
Hpuca
w ta Joctt to anemt dota
m
P ram na ootabud a
Ca
Th h
nd Sendto, sndnsa, n , Lom tey
LOrdi(poket, b , lanath)
One AUut Ikeg Aott dionptsr
Lotonnd sadd veas d) dta to be surt
Ppeuhes unhur o and
p bol,n ,
loth,Ragt)

10. 1)
Aund oDotut, , ungtk, flues diocddv, addvh.)
a ran Aind mevcg
Dott leae tay rui
Apeudy deotnation
Salsh
Sockt APL Othus hvre nkom
o read,recy, rtevro.
r a (dascnp, bufe , lungtl)
snpt tnte doecoplav
Oddrem h h ts 4lsre
b o to rad
To ui sout, bup, lunsth Aag
s t
dat
recv
Soctk, aur, lth Mag dnadd, ddrlen
Cacal d remo blt addw
oteun
C add w
proA
tpeenram a lo duterm
Conc
m o t e end db
oku d Jo t
g k p e n r a m a S o t l t ,
taotnds, aldrkn)
et ocnameSoctut,lotalods aldika)

11. t h TCA
Se
Do
ctetk
o k e t
bind
a L c e p t k
C a d
Awat
C o n r e t o
read
iunk
Socat
Onrd
t u m
h diounp tov
A m o a l i n
a
o c k t
o t h
Port addrro
e
Conmbon vux
A L p t )
Sh Y C m o t u
cha
S ) Sund dats