●TCP service is obtained by having both the sender and the receiver create and points,which are called (75) .
(75) A.Network address
B.supenet address
C.socket
D.IP address
第1题:
为保护Web_Service不受恶意访问的攻击,应使用()保护Web_Service.
A. IIS目录安全性
B. NTFS安全性
C. 共享目录安全性
D. TCP/IP安全性
第2题:
A.http-map,tcp-map,class-map
B.class-map,tcp-map,policy-map
C.class-map,policy-map,service-map
D.class-map,service-policy,policy-map
第3题:
第4题:
YouareworkingasaDBAinanorganization.Theflashrecoveryareafilesarecreatedin’+disk1’.Youwanttocreatenewflashrecoveryareafilesinthe’+disk2’location.Thenewlocationoftheflashrecoveryareafilesshouldbewritteninthecontrolfileandthespfile.Whichcommandwillyouissuetochangethelocationoftheflashrecoveryareafiles?()
A.ALTERSYSTEMSETDB_RECOVERY_FILE_DEST=’+disk2’;
B.ALTERSYSTEMSETDB_RECOVER_FILE_DEST=’+disk2’SCOPE=BOTH;
C.ALTERSYSTEMSETDB_CREATE_FILE_DEST=’+disk2’;
D.ALTERSYSTEMSETDB_CREATE_ONLINE_LOG_DEST_n=’+disk2’;
第5题:
请判断下列代码在程序关闭时,正确的对象释放顺序
TMybutton=class(Tbutton)
Protected
Destructor Destroy;override;
End;
…………
destructor TMyButton.Destroy;
Begin
inherited;
Application.MessageBox(PChar(Name),’Destroy’,mb_ok);
end;
var AButton,BButton:TMyButton;
procedure TForm1.FormCreate(Sender:TObject);
begin
Abutton:=TmyButton.Create(Nil);
With AButton do
begin
Parent:=form1;
Top:=100;
Left:=100;
Visible:=True;
Name:=’ABtn’;
end;
BButton:=TMyButton.Create(Application);
With BButton do
begin
Parent:=Form1;
Top:=100;
Left:=200;
Visible:=True;
Name:=’BBtn’;
end;
procedure TForm1.FormDestroy(Sender:TObject);
begin
…………
end;
A.BButton.Destroy->Form1.Destroy->AButton.Destroy
B.上述都不对,应该手工调用 Abutton.free,否则会造成AButton没有释放的
错误
C.Form1.Destroy->AButton.Destroy->BButton.Destroy
D.AButton.Destroy->Form1.Destroy->BButton.Destroy
第6题:
对错题(请输入:对或错) Android的四大组件包括Activity、Service、ContentProvider和Receiver。