CIU ( ) 2005 ( 9 00 11 30 150 ) 1 2B 2 75 1 75 3 A B C D 4 2B 2005 ( ) 88 89 (88)A 4 B 5 C 6 D 7 (89)A 27 B 28 C 29 D 30 5 29 (88) B (89) C 88 B 89 C ( ) 1 2 (1)A B C. D (2)A B C. D 16M (3) (3)A 16 B 20 C 24 D 32 (4) (5) (6) (4)A. B http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 1
C. D (5)A. B C. D. (6)A B C. D R 0.8 7 ; (8) (7)A 0.80 B. 0.64 C 0.90 D 0.96 (8)A 0.80 B 0.64 C 0.90 D 0.96 9 (9)A B C D Internet 10 11 (10)A B. C. - D (11)A RSA B RC-5 C MD5 D ECC 12 (12)A B C D (13) (13)A B C. D C 14 (14)A B C D. I/O 10 1 R1 R2 R10 1 2 3 4 5 6 7 8 9 10 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 20ms/ R1 4ms 10 15 10 16 (15)A 180ms B 200ms C 204ms D 220ms (16)A 40ms B 60ms C 100ms D 160ms 4K http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 2
a 17 (17)A 33220 B 8644 C 4548 D 2500 (18) (18)A B C D 19 20 (19)A B C. D. (20)A B C. D. OSI (SAP) Internet 21 (21)A MAC B LLC C. IP D OSI 22 (22)A B C. D Internet 23. http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 3
10 9.6Kb/s TDM 24 TDM 30% 10% 25 (24)A. 32Kb/s B 64Kb/s C 72Kb/s D 96Kb/s (25)A 32Kb/s B 64Kb/s C 72Kb/s D 96Kb/s 4 26 a 6 a 5 a 4 a 3 a 2 a l a 0 S 2 =a 2 +a 4 +a 5 +a 6 S 1 =a 1 +a 3 +a 5 +a 6 S 0 =a 0 +a 3 +a 4 +a 6 S2S1S0=110 27 (26)A 6 B 8 C. 11 D 16 (27)A a 3 B a 4 C a 5 D a 6 28 (28)A. 0 1 1 0 1 0 0 1 1 B 0 1 1 1 1 0 0 1 0 C 1 0 0 1 0 1 1 0 0 D 1 0 0 0 0 1 1 0 1 N-ISDN (2B+D) (30B+D) 29 (29)A B 16Kb/s B D 16Kb/s C. B 64Kb/s D. D 64Kb/s ATM AAL5 LAN AAL5 (30) A. AAL5 B AAL5 C. AAL5 D AAL5 (31) (31)A B C. D. 32 33 http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 4
(32)A 2 B 3 C 4 D 5 (33)A 2 B 5 C 6 D 10 R1 34 (34)A R1(config)# ip host R2 202 116 45 110 B R1(config)# ip network 202 16 7 0255 255 255 0 C R1(config)# ip host R2 202 116 45 0255 255 255 0 D R1(config)# ip route 201 16 7 0255 255 255 0202 116 45 110 RIP (35) RIP 36 (35)A B C. D (36)A 1 B 16 C 15 D. (VLSM) (Route Summarization) 37 (37)A IGRP B OSPF C VTP D RIPvl OSPF 38 (38)A B C Dijkstra http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 5
D LSA OSPF 39 (39)A Hello B Keepalive C. SPF( ) D LSU( ) BGP4 40 (40)A. BGP4 (Peer) AS B BGP4 (hop-by-hop) C. BGP4 (Supernet) D BGP4 IP (MPLS) IETF MPLS 41 (41)A. MPLS MPLS PPP B MPLS C IP (FEC) D. MPLS 192 168 15 19/28 42 (42)A 192 168 15 17 B 192 168 15 14 C 192 168 15 16 D 192 168 15 31 43 (43)A 255 255 255 252 B 255 255 255 248 C 255 255 255 240 D 255 255 255 196 44 (44)A 172 31 128 255/18 B 10 255 255 255 C 192 168 24 59/30 D 224 105 5 211 Web index htm default.htm default.asp ih htm 45 (45)A index htm B. ih.htm C default.htm D default.asp Windows 46 DNS IP (46)A DNSserver B Nslookup C DNSconfig D DNSip 256M RAM Linux (swap) 47 (47)A 128M B 512M C 1024M D 4096M Linux 48 (48)A /bin B /etc C /dev D /root Linux 49 Linux (49)A #help <command> B #show <command> C #man <command> D #1s <command> (ACL) 50 (50)A. ACL B ACL C. ACL D ACL 51 Telnet 10.10.1.0/24 (51)A access-list 15deny telnet any 10.10.1.0 0.0.0.255 eq 23 B access-listll5deny udp any10.10.1.0 eq telnet C. access-list 115deny tcp any 10.10.1.0 0.0.0.255 eq 23 http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 6
D access-list 15deny udp any 10.10.1.0 255.255.255.0 eq 23 52 (52)A SMTP B FTP C HTTP D SNMP HTTPS HTTP 53 54 (53)A IPSec B SSL C SET D SSH (54)A TCP 443 B UDP 443 C TCP 80 D UDP 80 VLAN 55 (55)A.VLAN B (Trunk) VLAN C. VLAN D VLAN Windows 2000 Kerberos PKI 56 Kerberos 57 (56)A. Kerberos PKI B. Kerberos PKI C. Kerberos PKI D. Kerberos PKI (57)A RSA B TGT C DES D LSA Windows ping -n (58) (58)A ping B ping C. D ping Windows tracert -h (59) (59)A B C. D (60) (60)A B C. D IP 176.68.160.12 22 (61) (62) (61)A.255.255.255.0 B. 255.255.248.0 C.255.255.252.0 D 255.255.0.0 (62)A 254 B 512 C 1022 D 1024 Internet (63) (63)A Telnet B RAS C FTP D SMTP TCP/IP (64) (64)A 1~255 B 1~1023 C 1~1024 D 1~65535 (65) (65)A B C. D DOM is a platform- and language- (66) API that allows programs and scripts to http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 7
dynamically access and update the content, structure and style of WWW documents (currently, definitions for HTML and XML documents are part of the specification). The document can be further processed and the results of that processing can be incorporated back into the presented (67). DOM is a (68) -based AP1 to documents, which requires the whole document to be represented in (69) while processing it. A simpler alternative to DOM is the event-based SAX, which can be used to process very large 70 documents that do not fit into the memory available for processing. (66) A. specific B. neutral C. contained D. related (67) A. text B. image C. page D. graphic (68) A. table B. tree C. control D. event (69)A. document B. processor C. disc D. memory (70) A. XML B. HTML C. script D. Web Melissa and Love Letter made use of the trust that exists between friends or colleagues. Imagine receiving an (71 ) from a friend who asks you to open it. This is what happens with Melissa and several other similar email (72). Upon running, such worms usually proceed to send themselves out to email addresses from the victim's address book, previous emails, web pages (73) As administrators seek to block dangerous email attachments through the recognition of well-known (74), virus writers use other extensions to circumvent such protection. Executable (.exe) files are renamed to.bat and.cmd plus a whole list of other extensions and will still run and successfully infect target users. Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the (75) access to your network. (71) A. attachment B. packet C. datagram D. message (72) A. virtual B. virus C. worms D. bacteria (73) A. memory B. caches C. ports D. registers (74) A. names B. cookies C. software D. extensions (75) A. cracker B. user C. customer D. client ( ) 2005 ( 14 00 16 30 150 ) 1 2 3 4 15 75 http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 8
5 6 2005 ( ) 1 2 5 29 5 29 ( ) 1 5 2 29 (15 ) 1 6 [ ] 100 40 1-1 http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 9
1-2 [ 1l(3 )? [ 2](2 ) 1-1 Internet? [ 3](2 ) 1-2? [ 4](3 )IEEE 802 11? 1-2 Operating Mode? [ 5](2 ) ESSID ( ID)? [ 6](3 ) 1-2 Encryption Level WEP WEP?? (15 ) 1 4 [ ] FTTx+LAN 2-1 [ 1] (2 ) http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 10
FTTx+LAN? [ 2](3 ) (ONU) 2-1 A B C [ 3](3 ) (1) (3) [ 4](7 ) DHCP DHCP IP IP ( ) ID IP DHCPREQUEST DHCPDISCOVER DHCPACK DHCPOFFER _ IP DHCP _ ARP DHCPDECLINE 1 (2 ) 2 (4) (8) (5 ) (15 ) 1 5 [ ] SSL(Secure Socket Layer) TCP SSL SSL HTTPS Web 3-1 3-2 IIS5.0Web HTTPS http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 11
[ 1](3 ) SSL IIS5.0 Web Web Web SSL ITU-T [ 2](3 ) Web http https Web 3-2? [ 3](3 ) Web Web https IE Web 128 3-2? [ 4](3 ) Web Web 3-2? [ 5](3 ) Web 3-2? (15 ) 1 7 [ ] 4-1 VLAN VLAN VLAN VLAN http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 12
[ 1](2 ) VLAN? [ 2](2 ) VLAN VLAN l?? [ 3](3 ) v2 Switch# (1) ( VLAN ) Switch(vlan)# (2) ( v2 ) Switch(vlan)# (3) ( ) [ 4](2 ) Switch l VLAN Switch l (config)#interfacegigabit0 1( 6 ) Switch l (config-if)#switchport (4) Switch l (config-if)#switchport (5) [ 5](2 ) Switchl Switch2 4-1 VLAN Trunk?? [ 6](2 ) Switch l 1216 v2 Switch l (config)#interface fastethernet0/6 ( 6 ) Switch l (config-if)#switchport (6) Switch l (config-if)#switchport (7) [ 7](2 ) VLAN? (15 ) 1 5 [ ] 3 5-1 http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 13
[ 1] (6 ) R1 / R1 Router>en Router>confterm Router(config)#hostname Rl (1) R1(config-if)#ip address 192.168.1.2 255.255.255.0 R1(config-if)#no shutdown R1(config-if)#int s0 R1(config-if)#ip address (2) R1(config-if)#no shutdown R1(config-if)#clock rate 56000 R1(config-if)#exit R1(config)#ip routing R1(config)#ip route 0.0.0.0 0.0.0.0 (3) R1(config)#ip classless R1(config)#exit R1#copy run start [ 2] (3 ) R2 R2 Router>en Router#conf term Router(config)#hostname R2 R2(config)#int e0 R2(config-if)#ip address 192.168.3.1 255.255.255.0 R2(config-i0#no shutdown R2(config-if)#int s0 R2(config-if)#ipaddress 192.168.2.2 255.255.255.0 R2(config-if)#no shutdown R2(config-if)# (4) R2(config)#ip roudng [ 3] (2 ) ip routing? [ 4] (2 ) ip classless? [ 5] (2 ) copy run start? http://www.ciu.net.cn 0731-4215591 train@ciu.net.cn 14