●Networks can be interconnected by different devices．In the physical layer，networks can be connected by (66) or Hubs，which just move the bits from one network to an identical network．One layer up we find bridgas and swiehes,which operate at data link laye
题目
●Networks can be interconnected by different devices．In the physical layer，networks can be connected by (66) or Hubs，which just move the bits from one network to an identical network．One layer up we find bridgas and swiehes,which operate at data link layer．They can accept (67) ，examine the MAC address，and forward the frames to a different network while doing minor protocol translation in the process．In the network layer，we have routers that can connect two netwoks．If two networks have (68) network layer，the router may be able to translate between the packet formats．In the transport layer we find transport gateway，which can interface between the two transport connections．Finally，in the application layer，application gateways translate message (69) ．As an example，gateways between Internet e-mail and X．400 e-mail must (70) the e-mail message and change various header fields．
(66) A．reapers
B．relays
C．connects
D．modems
(67) A．frames
B．bytes
C．packages
D．cells
(68) A．special
B．dependent
C．similar
D．dissimilar
(69) A．syntax
B．semantics
C．languages
D．format
(70) A．analyze
B．pairs
C．delete
D．create
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第1题：
You perform a security audit of a server named DC1. You install the Microsoft Network Monitor 3.0 application on DC1.You plan to capture all the LDAP traffic that comes to and goes from the server between 20:00 and 07:00 the next day and save it to the E:\data.cap file. You create a scheduled task. You add a new Start a program action to the task.You need to add the application name and the application arguments to the new action.What should you do?（）
A. Add nmcap.exe as the application name. Add the /networks * /capture LDAP /file e:\data.cap /stopwhen /timeafter 11hours line as arguments.
B. Add netmon.exe as the application name. Add the /networks */capture LDAP /file e:\data.cap /stopwhen /timeafter 11hours line as arguments.
C. Add nmcap.exe as the application name. Add the /networks * /capture !LDAP /file e:\data.cap /stopwhen /timeafter 11hours line as arguments.
D. Add nmconfig.exe as the application name. Add the /networks * /capture &LDAP /file e:\data.cap /stopwhen /timeafter 11hours line as arguments.
参考答案：A
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第2题：
TMS320X28XX系列处理器CAN总线接口支持标准()。A.CAN 2.0A,CAN 2.0C
B.CAN 2.0C
C.CAN 2.0B,CAN 2.0C
D.CAN 2.0A,CAM 2.0B
正确答案:C
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第3题：
Together with the network layer,the transport layer is the heart of the protocol ( ).The network layer provides end-to-end () delivery using datagrams or virtual circuits.The transport layer builds on the network layer to provide data transport from a process on a () machine to a process on a destination machine with a desired level of reliability that is independent of the physical (请作答此空) currently in use.It provides the abstractions that applications nedd to use the network..Without the () layer,the whole concept of layered protocols would make little sense.A.traffic
B.connection
C.lines
D.networks答案：D解析： -
第4题：
WhichtwoofthefollowingaretheimposedrestrictionstoproductionredeploymentinWebLogicServer?()A.Can’tcahngeapplication’sdeploymenttargets
B.Can’tcahngeapplication’ssecuritymodel
C.Can’tcahngeapplication’snodemanager
D.Can’tcahngeapplication’spersistentstoresettings
参考答案：A, B
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第5题：
（72）
A．computers
B．routers
C．switches
D．networks
正确答案：D
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第6题：
在Linux中提供DHCP服务的程序是（ ）.A./etc/networks/dhcpd
B./usr/sbin/dhcp
C./etc/networks/dhcp
D./usr/sbin/dhcpd答案：D解析：/usr/sbin/dhcpd 是Linux上执行DHCP服务的程序，/etc/dhcpd.conf是dhcpd最关键的配置文件。通过设置/etc/dhcpd.conf文件，可以设置租用时间限制、子网相关信息以及域名等，将主机的MAC地址和IP地址绑定在一起。