2.
3. CISCO 4. 5.
6.
7. ISO
8.
9. OSI( ) 10. OSI ( ) 11. Telnet SMTP HTTP FTP 7 (Application) 12. Telnet SMTP HTTP FTPASCII EBCDIC JPEG
13. Telnet HTTP ASCII EBCDIC JPEG
Operating System/ Application AccessScheduling
14.
Telnet HTTP ASCII EBCDIC JPEG Operating System/ Application AccessScheduling 15. EIA/TIA-232 V.35
16. 802.3 / 802.2 HDLC EIA/TIA-232 V.35
2 (Data Link) 17. 802.3 / 802.2 HDLC EIA/TIA-232 V.35 IP IPX
18. TCP UDP 802.3 / 802.2 HDLC EIA/TIA-232 V.35 IP IPX
19. TCP UDP 802.3 / 802.2 HDLC EIA/TIA-232 V.35 IP IPX
20. PDU
21.
22.
23. LLC+ IP + TCP + MAC IP + TCP + LLC TCP+ IP TCP 0101110101001000010 LLC IP FCS FCS 24. LLC+ IP + TCP + MAC IP + TCP + LLC TCP+ IP TCP 0101110101001000010 25. A B 26.
Ethernet 802.3 V.35 EIA/TIA-232 27. Ethernet/802.3 10Base2 10Base5 10BaseT 28.
29.
A B C D 30. 31. NIC HUB UTP PC 32.
33.
34. CSMA/CD
35. CSMA/CD
36. CSMA/CD
37.
EIA/TIA-232 v.35 Ethernet Frame Relay HDLC 802.2 802.3 38. MAC
39. LLC
40. SAP
41. ( ) FCS 2 6 6 4
IEEE MAC - 802.3 Ethernet II Type 802.2.
8 # 42. ( ) SAP SAP FCS 1 1 802.2 (SAP) MAC - 802.3 Ctrl 1 or 2 3 2 SAP AA SAP AA 1 1 802.2 (SNAP) Ctrl 03 1 or 2 OR OUIID 43. 1. 2. OSI , OSI MAC 44.
1 2 3 1 2 4 45.
46.
47.
48.
49.
IP, IPX EIA/TIA-232 v.35 Ethernet HDLC 802.2 802.3 50. ( ) IP
51. 52.
53.
54. ( ) 11111111 11111111 00000000 00000000 10101100 00010000 01111010 11001100 172.16.122.204 255.255.0.0 172 16 122 204 255 255 0 0 55. 10.0.0.0 20.0.0.0 40.0.0.0 S0 S0 E0 1 0 0 1.0 4.0 1.3 E0 4.3 S0 2.2 E0 20.2.2.1 S0 4.1 40.4.4.2 10.1.1.1 1.2 10.0.0.0 20.0.0.0 40.0.0.0 E0 S0 S0 0 0 1 56.
57.
IPX IP SPX TCP UDP 58. , ( ) 59. OSI
60. ? ? 61. 1444 1114 62.
63.
( ) / , T1 /ISDN 0 64.
65.
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