The presentation layer is concerned with the(71) and semantics of the information exchanged between two systems．The processes in two systems are usually exchanging information in the form. of character (72) numbers, and so on．The information should be cha

题目

The presentation layer is concerned with the(71) and semantics of the information exchanged between two systems．The processes in two systems are usually exchanging information in the form. of character (72) numbers, and so on．The information should be changed to bit (73) before being transmitted．Because different computers use different encoding systems, the presentation layer is responsible for (74) between these different encoding methods．The presentation layer at the sender changes the information from its sender-dependent format into a common format． The presentation layer at the receiving machine changes the common format into its (75) dependent format．

(71)

A.frequency

B.syntax

C.dialog

D.format

(72)

A.numbers

B.unctions

C.strings

D.codes

(73)

A.systems

B.characters

C.layers

D. streams

(74)

A.capability

B.interoperability

C.reliability

D.dependability

(75)

A.receiver

B.user

C.server

D. customer

相似考题

1.The writer was so ______ on her work that she didn’t notice him enter the roomA、absorbedB、abandonedC、focusedD、concerned

2.Acknowledgements, sequencing, and flow control are functions that are handled by which layer of the OSI model?A. Layer 5B. Layer 4C. Layer 7D. Layer 6E. Layer 3F. Layer 2G. Layer 1

3.● Spyware and other forms of malware are the biggest online threat to your computer's （71） nowadays. These malicious （72）which get to your PC through freeware, shareware, commercial sites, deceptive pop-ups or in any other way, can record your surfing habits and sites you visit, share your personal information with their partners. Any personal （73）, when inwrong hands, can leave you a victim of an "identity theft" by steeling your credit （74）details,birth records and other （75） information.

4.Which of the following would be affected by setting NLS_LENGTH_SEMANTICS=CHAR?()A. All objects in the databaseB. Tables owned by SYS and SYSTEMC. Data dictionary tablesD. NCHAR columnsE. CHAR columns

参考答案和解析
正确答案：B,C,D,B,A
表示层关注的是系统间语法和语义的信息交换。两系统间交换信息的形式主要有字符串形式等。信息都是被转换成比特流进行传递的。由于不同的计算机采用了不同的编码系统，需要表示层来负责这些不同编码方法间能互相操作。在发送端，表示层将信息从其本身的发送格式转换为一种通用格式。而在接收端，又将这种通用格式的数据转换为接收端本身使用的数据格式。
更多“The presentation layer is concerned with the(71) and semantics of the information exchang ”相关问题

  • 第1题：

    XML is a(71)language for documents containing(72)information.

    Structured information contains both content(words, pictures, etc.)and some indication of what role that content plays(for example, content in a section heading has a different meaning from content in a footnote, which means something different than content in a figure caption or content in a database table, etc.). Almost all documents have some structure.

    A markup language is a(73)to(74)structures in a document. The XML specification defines a standard way to add markup to(75).

    A．make-up

    B．madeup

    C．markup

    D．makeup


    正确答案：C

  • 第2题：

    ●Information (71) involves all the operations of an office.

    (71)A. record

    B. processing

    C. input

    D. output


    正确答案：B

  • 第3题：

    I'm content with the way the campaign has gone.

    A:tied
    B:satisfied
    C:filled
    D:concerned

    答案：B
    解析：

  • 第4题：

    根据RFC2328,关于一台运行OSPF的路由器从初始到与邻居形成邻接关系的过程描述正确的是()

    A.Down，Init，2-way，Exchang，Exstart.Loading，Full

    B.Down，Exstart，2-way，Init.2.Exchang，Loading，Full

    C.Down，Init，Exstart，Exchang，Loading，Full

    D.Down，Init，2-way，Exstart，Exchang，Loading，Full


    参考答案：D

  • 第5题：

    The study of how sounds are put together and used to convey meaning in communication is__________.

    A．morphology
    B．general linguistics
    C．phonology
    D．semantics

    答案：C
    解析：
    考查语言学中的基本概念。形态学(morphology)主要研究单词的内部构造；普通语言学(general linguistics)是研究人类语言的普遍规则的；音系学(phonology)指从功能的角度出发对出现在某种特定语言中的语音及其组合、分布规律进行研究的语言学分支；语义学(semantics)指对语言产生意义的方法的系统研究．主要研究词义和句义。故选C。

  • 第6题：

    Which one of the following studies the internal structure of words， and the rules by which words are ( ) formed？

    A.Morphology
    B.Syntax
    C.Phonology
    D.Semantics

    答案：A
    解析：
    考查语言学知识。题干为：以下哪一项研究单词的内部结构，以及单词形成的规则？A项Morphology(形态学)研究词的内部结构和构词规则。B项Syntax(句法学)主要研究语言的句子结构。C项Phonology(音系学)研究语音的产生、传播、接受过程，考查人类语言中的声音。D项Semantics(语义学)不仅关心字词作为词汇的意义，还有语言中词之上和之下的意义。

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