网络工程师上午2009下半年附答案详细解析.doc

:_ :_ :_ 网络工程师上午2009下半年1. CPU A: CUPB: PC/C: CPUD: CPU2. CISC Complex Instruction Set Computer , RISCReduced Instruction Set Computer, A: CISCB: CISC CPUC: RISCD: RISC3.( )A: B: 1C: D: 14. Cache ( )A: CacheB: CacheC: CacheD: CPU Cache CPU Cache5.5A: BoochB: CoadC: OMTD: Jackson6.,( )A: B: C: D: 7. ,.( ).A: B: C: D: 8.A: B: JavaC: D: 9.A: B: C: D: 10. A: B: C: D: E1 32 302 1112 11.A: CH0 CH2B: CH1 CH15C: CH15 CH16D: CH0 CH1612.A: 100msB: 200sC: 125sD: 150s4B/5B 13 4 514 13.A: NRZ-IB: AMIC: QAMD: PCM14.A: 0.4B: 0.5C: 0.8D: 1.015.A: XYB: XYC: XYD: XY16.A: 010011110B: 010011010C: 011011010D: 01001001017.A: FSKB: 2DPSKC: ASKD: QAM18.A: 100 BaudB: 200 BaudC: 1200 BaudD: 2400 Baud 2000km 4800b/s 300019 50Kb/s20 19.A: 480msB: 645msC: 630msD: 635ms20.A: 70msB: 330msC: 500msD: 600ms21. ARQ k 21.A: B: C: D: RIPv2 RIPv1RIPv222 RIPv223 22.A: B: C: D: 23.A: B: C: D: OSPF 4Area,2425 24.A: B: C: D: 25.A: B: C: D: 26.MPLS A: MACB: IPC: VLAND: 27.A: 1B: 55C: 54D: 28.A: 1B: 55C: 54D: 29.A: DNSB: TCP/IPC: D: DHCP30.A: ps-allB: ps-aefC: ls-aD: ls-la31.A: 0B: nullC: initD: bash32.A: xinetdB: xinetdC: xinetdD: xinetd33.Linux WebA: inetd.confB: lilo.confC: httpd.confD: resolv.conf34. Linux A: /etc/samB: /etc/shadowC: /etc/groupD: /etc/security35.A: ipconfig/renewB: pingC: nslookupD: route print36.A: route add mask B: route add C: add route D: add route mask 37. MicrosoftMMC( )A: MMCB: MMCC: MMC Windows XP Windows 2000D: MMC Windows 38.RAID A: RAID0B: RAID1C: RAID3D: RAID539.xDSL A: ADSL HDSLB: ADSL VDSLC: SDSL VDSLD: SDSL HDSL40. FTP A: rootB: userC: guestD: anonymous41. Kerberos A: B: C: D: 42. 4 A: worm.Sasser.fB: Win32.CIHC: Trojan.qq3344D: Macro.Melissa43. ACL A: Router(config-if)#ip access-group 10 outB: Router(config-if)#apply access-list 10 outC: Router(config-if)#fixup access-list 10 outD: Router(config-if)#route access-group 10 out CA444546 44.A: CA B: C: D: 45.A: CA B: C: D: 46.A: CA B: C: D: 47.IPSee A: ESPB: IKEC: TGSD: AH48.SSL A: 80B: 445C: 8080D: 443 4950 49.A: /20B: /21C: /16D: /2450.A: 2032B: 2048C: 2000D: 205651. CIDR 4 C /24/24/24/24 A: /22B: /22C: /21D: /2152. /18 16 16 A: /22B: /22C: /22D: /2253.IPv6 12AB:0000:0000:CD30:0000:0000:0000:0000/60 A: 12AB:0:0:CD30:/60B: 12AB:0:0:CD3/60C: 12AB:CD30/60D: 12AB:CD3/60IPv65455 54.A: B: C: D: 55.A: B: C: D: 56. A: B: C: D: HDLC57.SNMP MIB Access A: B: C: D: 58. A: VLAN B: C: D: 59. Switchenable A: B: C: D: 60.IEEE802.Iq A: B: C: VLAN D: 61.CSMA/CD A: B: C: PD: 62. Windows DOSC:|nslookup Set type=ptr 65 A: 65B: 65C: 65D: 6563. Windows arp-s 0 00-AA-00-4F-2A-9C A: ARPB: ARPC: ARPD: ARP64. A: DASB: DAS NASC: DAS SAND: NAS SAN65.IEEE802.11 802.3 CSMA/CD CSMA/CA CSMA/CD A: CSMA/CAB: CSMA/CDC: D: 66. A: B: C: D: 67.EIA/TIA-568 mA: 10B: 30C: 50D: 10068. A: B: C: D: 69. A: B: C: D: 70. A: B: C: D: Routing protocols use different techniques for assigning(71)to individual networks. Further, each routing protocol forms a-metric aggregation in a different way. Most routing protocols can use multiple paths if the paths have an equal(72).Some routing protocols can even use multiple paths when paths have an unequal cost. In either case,load (73)can improve overall allocation of network bandwidth. When multiple paths are used, there are several ways to distribute the packets. The two most common mechanisms are per-packet load balancing and per-destination lad balancing. Per-packet load balancing distributes the(74)across the possible routes in a manner proportional to the route metrics. Per-destination load balancing distributes packets across the possible routes based on(75). 71.A: callsB: metriesC: linksD: destinations72.A: userB: distanceC: entityD: cost73.A: bracketingB: balancingC: downloadingD: transmitting74.A: destinationsB: resourcesC: packetsD: sources75.A: destinationsB: resourcesC: packetsD: sources:0.0/75.0:0/75:0/0.0:0/0()Section 0.0/75.00/750.0/0.00/01 :B2 :A3 :D4 :B5 :D6 :A7 :C8 :B9 :D10 :A11 :D12 :C13 :A14 :C15 :C16 :B17 :B18 :C19 :D20 :B21 :B22 :D23 :B24 :C25 :D26 :B27 :A28 :C29 :C30 :B31 :C32 :A33 :C34 :B35 :D36 :A37 :D38 :A39 :B40 :D41 :A42 :C43 :A44 :A45 :B46 :C47 :B48 :D49 :B50 :B51 :B52 :D53 :A54 :B55 :A56 :D57 :D58 :D59 :D60 :C61 :D62 :B63 :B64 :D65 :C66 :A67 :A68 :D69 :B70 :A71 :B72 :D73 :B74 :C75 :A1 :0.0: :0.02 :0.0: :0.03 :0.0: :0.04 :0.0: :0.05 :0.0: :0.06 :0.0: :0.07 :0.0: :0.08 :0.0: :0.09 :0.0: :0.010 :0.0: :0.011 :0.0: :0.012 :0.0: :0.013 :0.0: :0.014 :0.0: :0.015 :0.0: :0.016 :0.0: :0.017 :0.0: :0.018 :0.0: :0.019 :0.0: :0.020 :0.0: :0.021 :0.0: :0.022 :0.0: :0.023 :0.0: :0.024 :0.0: :0.025 :0.0: :0.026 :0.0: :0.027 :0.0: :0.028 :0.0: :0.029 :0.0: :0.030 :0.0: :0.031 :0.0: :0.032 :0.0: :0.033 :0.0: :0.034 :0.0: :0.035 :0.0: :0.036 :0.0: :0.037 :0.0: :0.038 :0.0: :0.039 :0.0: :0.040 :0.0: :0.041 :0.0: :0.042 :0.0: :0.043 :0.0: :0.044 :0.0: :0.045 :0.0: :0.046 :0.0: :0.047 :0.0: :0.048 :0.0: :0.049 :0.0: :0