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internet
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1
1.
IP
203.68.123.4
255.255.255.128
!
203.68.123.0
203.68.123.1
203.68.123.127
203.68.123.128
2
2.
" #$
(Classless addressing)
167.128.170.82/27
(network address)
!
167.128.170.0
167.128.170.64
167.128.170.128
167.128.170.192
4
3. ICMP(Internet Control Message Protocol)
%&'(#)*$+,-%&./
ICMP
% & !
01"23456
78 9 :
78 ; <
(time stamp)
=>?0@
A B
(Membership)
0 1
1
4.
C
IP
D E F
IGMP(Internet Group Management Protocol)
% &
TTL(Time To Live)
GH @ !
1
64
128
256
3
5.
+IJ
TCP
KL@MNO
port
PQ!
DNS (domain name server)
port
/
53
Telnet
port
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23
FTP
RST
DATA
conection
port
/
21
ECHO
@MN
port
/
7
2
6.
+ U
TCP
KV7W /RXY
RTT(Round Trip Time)
!
Persistence Timer
Retransmission Timer
Time-Waited Timer
Keepalive Timer
3
7.
C
TCP
KIJZ[]
(Congest Control)
R^_DE`ab
client
cdeDEf
geh
(maximum window size)
/
32
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16
mn
client
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16
7AopqrN
qsjSTDEfgehnDEfgehqs4
20
7A t u
time-out
vwxklH !
1
8
10
16
2
8. RIP(Routing Information Protocol)
K/yzC+ -{rN!
link state routing
distance vector routing
Dijkstra’s algorithm
path vector routing
4
9.
|C}~"
(diskless)
+ -Ko-"R!
ARP
RARP
NAT
BOOTP
2
10.
+
BGP(Border Gateway Protocol)
!
/
inter-autonomous system routing protocol
link state routing
/
inter-autonomous system routing protocol
path vector routing
/
intra-autonomous system routing protocol
link state routing
/
intra-autonomous system routing protocol
path vector routing
2
11.
C
DNS
/
218.45.122.106.in-addr.arpa
DNS
(
(Network
Address)
!
218.45.122.0
106.0.0.0
106.122.0.0
106.122.45.0
3
12.
{
(Distance vector routing)
{WAO¡O{¢m+ -K.A
{K!
IP
Routing Information Protocol
Internetwork Packet Protocol (IPX) Routing Information Protocol
Open Shortest Path First routing
Interior Gateway Routing Protocol
3
13.
£{¤%K..¥¦L§¨©!
ª«{
Open Shortest Path First routing
Interior Gateway Routing Protocol
Enhanced IGRP
1
14.
+
IPv6
¬ PQ!
/{
16
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o #)
3
-°«#±/
Unicast
²
Anycast
?
Multicast
0:0:0:0:0:0:0:1
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look back
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priority
G³´DEST¼½x¾
4
15.
C
HTML
+ ¿
<IMG SRC=”Pictures/book2.gif” ALIGN=middle>
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ALIGN
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(body)
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2
16.
+ÈÉ !
ÊÈÉ
MAC
4
® ¯
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frame
ÌÍÄÎeh
1500
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ÈÉ/
CSMA/CA
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10BaseT
frame
OËSTCÑÒ ÓÔÕÖ7
200
× Ø
2
17.
ÙÚÛ(ÜÝÞߤ%KjoÕà4áâãiäAåæçèéNyz
êë+ -{K!
IGRP
OSPF
IP RIP
RTMP
3
18.
+
T-
ìíî !
T1
SïÝð
T3
28
ñ
T1
SïÝð/
44.736Mbps
T1
oST
24
ò ó¤ ô Ì Í
T1
SïÝðõ
DS-1
. ö
1
19.
C
connect-oriented
socket programming
÷øWc
(server)
ùúÔû¾+ !
socket()
²
bind()
²
listen()
²
accept()
socket()
²
accept()
²
bind()
²
listen()
socket()
²
bind()
²
accept()
²
listen()
socket()
²
listen()
²
accept()
²
bind()
1
20.
C
socket programming
( ü ý
16
® þ 4®û¾(+,N !
htons()
ntohs()
htonl()
ntohl()
2
21.
+
802.11
!
802.11b
Oð
2.4~2.5GHz
802.11g
ÌÍSïðd4
54Mbps
802.11
"2¥.o¥)
Ad Hoc Network
802.11
ÏÐK
CSMA/CD
1
22.
+
Bluetooth
?
802.15
PQ!
802.15
DSSS
r N
802.15
ÌÍÝðo4
721kbps
802.15
/-
Ad Hoc
802.15
Ô C
2.4GHz
1
23. RTP(Real-time Transport Protocol)
D E /E),-!
UDP
ÌÍE
(user datagram)
TCP
segment
IP
datagram
RTCP
D E
4
24.
+ -Sï'(/
e-mail
Sïr2!
RSA
DES
BVD
PGP
3
25.
+
RTP(Real-time Transport Protocol)
?
RTCP(Real-time Transport Control Protocol)
O
(port)
!
* "Ò ]
RTP
?
RTCP
ö
RTP
RTCP
/
RTCP
s
RTP
RTCP
/
RTCP
s
4
26.
+,Á./Ì%ø
(Web service)
ÏÐ!
SOAP (Simple Object Access Protocol)
WSDL(Web Service Description Language)
UDDI(Universal Description, Discovery and Integration)
BPML(Business Process Modeling Language)
2
27. XML
(
XML Parser
R ä
XML
ÌÍ·Ro !m
SAX
/- "J#$
XML
parser
+%
SAX
PQ!
/-
event-based
API
õ
DOM
API
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SAX
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Call-back function
function
.
document handler
/
Simple API for XML
3
28.
+% ú
IP
PQ!
ú ' 0 ( t |Ä 6 1!2
(home agent)
3Ë
home network
( 4
foreign network
0 (½t
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foreign agent
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agent discovery
: M *- % & #± /5
(advertisement)
?6w
(solicitation)
care-of address
/1³ú'4
foreign network
74
foreign network
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IP
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2
29. JDBC(Java Database Connectivity)
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JDBC
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JDBC-ODBC Bridge
Native-Protocol/All Java Driver
Net-Protocol/All Java Driver
Native API/Partly Java Driver
1
30.
+ÈÉKìíî PQ!
10Base2
LöMKö Mì N
200
× Ø
100Base T4
4
UTP
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100
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100Base Tx
2
UTP
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100
× Ø
100Base Fx
'OPQN
400
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(transmission delay)
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802.11
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CRC(Cyclic Redundancy Check)
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CRC
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CRC
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CRC
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