2005年05月网络工程师考试上午真题【基础知识】-软考吧-您身边的软考专家-www.ruankaoba.com

2005年05月网络工程师考试上午真题【基础知识】

内容：基础知识
时间：150分钟
总分：75分
题数：75题

【64】在TCP/IP网络中，为各种公共服务保留的端口号范围是（64）。

真题详情及解析

【65】在以下网络应用中，要求带宽最高的应用是（65）。

真题详情及解析

【66-70】dom is a platform- and language- （66） api that allows programs and scripts to dynamicallyaccessand update the content， structure and style of www documents（currently， definitions forhtmlandxml documents are part of the specification）. the document can be further processed andtheresultsof that processing can be incorporated back into the presented （67）. dom is a （68）-basedap1 to documents， which requires the whole document to be represented in （69）whileprocessingit. a simpler alternative to dom is the event-based sax， which can be used to processverylarge（70） documents that do not fit into the memory available for processing.

真题详情及解析

【71-75】melissa and loveletter made use of the trust that exists between friends or colleagues.imaginereceiving an （71） from a friend who asks you to open it. this is what happens withmelissaandseveral other similar email （72） . upon running， such worms usually proceed to send themselvesoutto email addresses from the victim's address book， previous emails， web pages （73）.as administrators seek to block dangerous email attachments through the recognition ofwell-known（74）， virus writers use other extensions to circumvent such protection. executable （.exe）filesare renamed to .bat and .cmd plus a whole list of other extensions and will still run and successfullyinfect target users.
frequently， hackers try to penetrate networks by sending an attachment that looks like a flashmovie，which，while displaying some cute animation， simultaneously runs commands in the backgroundtostealyour passwords and give the （75） access to your network.

真题详情及解析