2023年河北软件水平考试考试考前冲刺卷.docx
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1、2023年河北软件水平考试考试考前冲刺卷本卷共分为1大题50小题,作答时间为180分钟,总分100分,60分及格。一、单项选择题(共50题,每题2分。每题的备选项中,只有一个最符合题意) 1.静态图像压缩标准JPEG2000中使用的是()算法。AK-L变换B离散正弦变换C离散余弦变换D离散小波变换2.一个局域网中某台主机的IP 地址为176.68.160.12,使用22 位作为网络地址,那么该局域网的子网掩码为_(61)_,最多可以连接的主机数为_(62)_。(61)处填()。A255.255.255.0B255.255.248.0C255.255.252.0D255.255.0.03.一个局
2、域网中某台主机的IP 地址为176.68.160.12,使用22 位作为网络地址,那么该局域网的子网掩码为_(61)_,最多可以连接的主机数为_(62)_。(62)处填()。A254B512C1022D10244.以下选项中,可以用于Internet信息服务器远程管理的是()。ATelnetBRASCFTPDSMTP5.在TCP/IP网络中,为各种公共服务保留的端口号范围是()。A1255B11023C11024D14655356.在以下网络应用中,要求带宽最高的应用是()。A可视电话B数字电视C拨号上网D收发邮件7.DOM is a platform-and language-_(66)_A
3、PI that allows programs and scriptsto dynamically access and update the content, structure and style of WWW documents(currently,definitions for HTML and XML documents are part of the specification).Thedocument can be further processed and the results of that processing can beincoporporated back into
4、 the presented _(67)_.DOM is a _(68)_-based API todocuments ,which requires the whole document to be represented in _(69)_whileprocessing it .A simpler alternative to DOM is the event –based SAX,which can beused to process very large _(70)_documents that do not fit info the memoryavailable for
5、 processing.(66)处填()。AspecificBneutralCcontainedDrelated8.DOM is a platform-and language-_(66)_API that allows programs and scriptsto dynamically access and update the content, structure and style of WWW documents(currently,definitions for HTML and XML documents are part of the specification).Thedoc
6、ument can be further processed and the results of that processing can beincoporporated back into the presented _(67)_.DOM is a _(68)_-based API todocuments ,which requires the whole document to be represented in _(69)_whileprocessing it .A simpler alternative to DOM is the event –based SAX,whi
7、ch can beused to process very large _(70)_documents that do not fit info the memoryavailable for processing.(67)处填()。AtextBimageCpageDgraphic9.DOM is a platform-and language-_(66)_API that allows programs and scriptsto dynamically access and update the content, structure and style of WWW documents(c
8、urrently,definitions for HTML and XML documents are part of the specification).Thedocument can be further processed and the results of that processing can beincoporporated back into the presented _(67)_.DOM is a _(68)_-based API todocuments ,which requires the whole document to be represented in _(6
9、9)_whileprocessing it .A simpler alternative to DOM is the event –based SAX,which can beused to process very large _(70)_documents that do not fit info the memoryavailable for processing.(68)处填()。AtableBtreeCcontrolDevent10.DOM is a platform-and language-_(66)_API that allows programs and scri
10、ptsto dynamically access and update the content, structure and style of WWW documents(currently,definitions for HTML and XML documents are part of the specification).Thedocument can be further processed and the results of that processing can beincoporporated back into the presented _(67)_.DOM is a _
11、(68)_-based API todocuments ,which requires the whole document to be represented in _(69)_whileprocessing it .A simpler alternative to DOM is the event –based SAX,which can beused to process very large _(70)_documents that do not fit info the memoryavailable for processing.(69)处填()。AdocumentBp
12、rocessorCdiscDmemory11.DOM is a platform-and language-_(66)_API that allows programs and scriptsto dynamically access and update the content, structure and style of WWW documents(currently,definitions for HTML and XML documents are part of the specification).Thedocument can be further processed and
13、the results of that processing can beincoporporated back into the presented _(67)_.DOM is a _(68)_-based API todocuments ,which requires the whole document to be represented in _(69)_whileprocessing it .A simpler alternative to DOM is the event –based SAX,which can beused to process very large
14、 _(70)_documents that do not fit info the memoryavailable for processing.(70)处填()。AXMLBHTMLCscriptDWeb12.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 seve
15、ral other similar email _(72)_.Uponrunning ,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
16、 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
17、,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)处填()。AattachmentBpacketCdatagramDmessage13.Melissa and Love Letter made use of the trust that exists between friends or colleagues.Imagin
18、e receiving an _(71)_from a friend who asks you to open it.This is what happens with Melissa and several other similar email _(72)_.Uponrunning ,such worms usually proceed to send themselves out to email addresses from the victim's address book, previous emails, web pages_(73)_.As administrators
19、 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.
20、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.(72)处填()。AvirtualBvirusCwormsDbacteria14
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