Which command record

题目

Which command records the path taken by network packets between a source and destination system? ()

  • A、 traceroute 
  • B、 netstat -p 
  • C、 ping 
  • D、 netstat -rn
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相似问题和答案

第1题:

设在工程中有一个标准模块,其中定义了如下记录类型: TyPe Record ID A3 Integer Name As String*20 End TyPe 在窗体中添加一个名为Command1的命令按钮,假设d:\F1.dat文件中含有5个用户自定义类型的记录。要求当执行事件过程Command1_Click时,随机访问该文件,并把文件中的第4条记录读出。下列能够完成该操作的程序段是

A.Private Sub Command1_Click( ) Dim MyRecord As Record,Position Open"d:\F1.dat"For Random As#1 Len=Len(My RecorD)Position=4 Get#1,Position,Myrecord Close #1 End Sub

B.Private Sub Command1_Click( ) Dim MyRecord As Record,Position Open"d:\F1.dat"For Random As #1 Len=Len(MyRecorD)Position=4 Put #1,Position,MyRecord Close#1 End Sub

C.Private Sub Command1_Click( ) Dim MyRecord As Record,Position Open"d:\F1.dar"For OutPut As #1 Len=Len(My RecorD0Position=4 Get #1,Position,MyRecord Close#1 End Sub

D.Private Sub Command1_Click( ) Dim MyRecord As record,Position Open"d:\F1.dat"For lnput As #1 Len=Len(MyRecorD)Position=4 Get #1,Position,MyRecord Close#1 End Sub


正确答案:A
解析:由于是以随机方式访问该文件,故打开方式为Random。选项C以Output方式打开,选项D以Input方式打开都是错误的。同时由于要读出第四条记录,故使用Get#语句。

第2题:

Which of the following DNS record types provides the hostname to IP address mapping?()

A. A record

B. NS record

C. CNAME record

D. MX record


参考答案:A

第3题:

The price at which a stock can be sold depends upon a number of factors. Which statement below is not one of those factors ().

A.the financial condition, earnings record, and dividend record of the corporation

B.investor expectations of the corporations earning power

C.how high the par value

D.general business and economic conditions and prospects


正确答案:C

第4题:

A network administrator enters the command clear ip route * and as a result he sees the message,"Please update the network documentation to record why the ip routing table was cleared." Which router feature was used in this case?()

  • A、NetFlow
  • B、SNMP
  • C、Debug
  • D、SysLog
  • E、EEM
  • F、CEF

正确答案:E

第5题:

______is the address of.a variable or a variable in which the address of another variable is stored.

A.Director

B.Pointer

C.Array

D.Record


正确答案:B
解析:指针是一个变量的地址或者是存储了另一个变量地址的变量。

第6题:

Which statement about the WebView submit command is true?()

A. The submit command exits the GUI.

B. The submit command reboots the WX device.

C. The submit command saves and writes the configuration to flash.

D. The submit command is the same as the commit CLI command.


参考答案:D

第7题:

ADO对象模型层次中可以打开Record Set 对象的是______。

A.只能是Connection对象

B.只能是Command对象

C.可以是Connection对象和Command对象

D.不存在


正确答案:C
解析:Connection对象:用于指定数据提供者。建立到数据源的连接。Command对象:表示一个命令。RecordSet对象:表示数据操作返回的记录集。此对象和Connection对象是最重要的两个对象。Connection对象和Command对象都可以打开RecordSet对象。

第8题:

设在工程中有一个标准模块,其中定义了如下类型: Type stutype ino As Integer strname As String*20 strsex As String*1 smark As Single End Type 在窗体上画一个名为Connnand1的命令按钮,要求当执行事件过程Command1_Click时,在c:\的随机文件student..dat写入一条记录。下列能够完成该操作的事件过程是( )。

A.Sub Command1_C1ick() Dim student As studtype Dim record_no As Integer record_no=1 With student .ino=12 .strname="smith" .strsex="男" .smark=89 End With Open" c:\student.dat" For input As # 1 len=len(student) Put # 1,record_

B.Sub Command1_Click( ) Dim student As studtype Dim record_no As Integer record_no=1 With student .ino=12 .strname="smith" .strsex="男" .smark=89 End With Open"c:\student.dat" For random As #1 len=len(student) Put #1,record_n

C.Sub Command1_Click() Dim student As studtype Dim record_no As integer record_no=1 With student .ino=12 .stmame="smith" .strsex="男" .smark=89 End With Open"c:\student.dat" For random As #1 len=len(student) Write #1,record_n

D.Sub Command1_Click() Dim Student As studtype Dim Record_no As Integer record_no=1 With student .ino=12 .strname="smith" .strsex="男" .smark=89 End With Open"c:\student.dat"For output As #1 len=len(student) Put #1,record_no,


正确答案:B

第9题:

Which of the following DNS record types provides the hostname to IP address mapping?()

  • A、A record
  • B、NS record
  • C、CNAME record
  • D、MX record

正确答案:A

第10题:

An administrator wants to record details of all logical volumes mapped as virtual disks on a VIO server partition and the associated virtual target devices and mappings.  Which IOS command can the administrator use to achieve this?()

  • A、 lssp -detail
  • B、 lsvdev -s vtd -c lv
  • C、 lsmap -type lv -all
  • D、 lsdev -Cs virtual -t lv

正确答案:C

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