【单选题】【消耗次数:1】
C类IP地址是指( )。
每个地址的长度为48位
可以表示16382个网络
每个C类网络最多可以有254个节点
编址时第一位为0
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相关题目
【单选题】 A类 IP 地址共有( )个有效网络节点。
①  126
②  127
③  128
④  16384
【单选题】 一个C类IP地址最多可容纳( )台主机。
①  254
②  1677216
③  1677214
④  16382
【单选题】 一个私有C类IP地址地址范围是( )。
①  地址范围:192.168.0.1—192.168.255.254
②  类地址范围:192.168.0.1—192.168.0.254
③  地址范围:172.16.0.1—172.31.255.554
④  地址范围:10.0.0.1—10.255.255.254
【单选题】 IPV4地址中,A类地址有( )个网络。
①  126
②  256
③  512
④  1024
【单选题】 B类IP地址是指( )。
①  每个地址的长度为48位
②  可以表示1024个网络
③  每个B类网络最多可以有254个节点
④  用二进制编址时第一位为1
【单选题】 在实际使用的 IP地址中,主机号不能为全“0”和全“1”,那么一个C类IP地址,最多能容纳的主机数目为( )
①  A、64516
②  B、254
③  C、64518
④  D、256
【单选题】 C类IP地址的最高三个比特位,从高到低依次是( )
①  A、 010
②  B、110
③  C、100
④  D、101
【单选题】 C 类 IP 地址的最高三个比特位,从高到低依次是 ()。
①  010
②  110
③  100
④  101
【简答题】 IP地址主要分为A、B、C三类,每一个IP地址是由32位二进制数组成,其中B类地址的第一个字节的范围是128 ~[填空1]。
【多选题】 一个C类地址的子网掩码为255.255.255.192,那么( )
①  子网号为第四段的前2位
②  每个子网主机数目为62个
③  划分子网并没有减少网络可用的主机数
④  子网号可以用IP地址和子网掩码按位与得到
随机题目
【单选题】 What are two broad categories of knowledge?
①  Implicit knowledge and explicit knowledge
②  Obvious knowledge and unobvious knowledge
③  Inductive knowledge and deductive knowledge
④  Refereed knowledge and inferred knowledge.
【单选题】 Which of the following steps are typical for the deductive grammar teaching method?
①  Give examples→explain rules→students do practice activities
②  Authentic language data is provided→induces learners to realize grammar rules→apply the new structure to produce sentences (the inductive method)
③  Explicit rules are give to students→Authentic language data is provided→apply the new structure to produce sentences (the guided discovery method)
④  All of the above.
【单选题】 Which of the following statement is not true?
①  Grammatical competence is essential for communication
②  There is a positive role of instruction for grammar learning
③  Grammar teaching can enhance learner proficiency
④  Grammar learning is completely useless for children.
【单选题】 Which of the following is not grammar presentation method?
①  Deductive method
②  Inductive method
③  Guided discovery method
④  Communicative teaching method.
【单选题】 What is the realistic goal of teaching pronunciation?
①  Consistency
②  Intellegibility
③  Communicative efficiency
④  All of the above.
【单选题】 Which type does the following production practice belong to? She sells sea shells on the seashore.
①  Make up sentences
②  Using meaningful context
③  Using pictures
④  Using tongue twisters.
【单选题】 Which type does the following production practice belong to? The students repeat what the teacher says. This activity can practice individual sounds, individual words, groups of words, and sentences.
①  Listen and repeat
②  Fill in the blanks
③  Make up sentences
④  Using meaningful context
【单选题】 What does the falling intonation on the question “where do you live ?” indicate?
①  I am telling you something you do not know
②  I have not finished yet
③  I am asking a genuine question
④  I know you have told me before.
【单选题】 What is reflected as important in the following example? A. Would you please turn down the radio a little bit? B. Sorry. ↘ (no, I do not want to.) Or B. Sorry? ↗ (what did you say?)
①  Stress
②  Intonation
③  Sounds
④  Pitch Part
【单选题】 What does the falling intonation on the statement “he is moved to Glasgow.” indicate?
①  I am telling you something you do not know
②  I have not finished yet
③  I am asking a genuine question
④  I know you have told me before.