How can you reverse the effects of an ALTER DISKGROUP ... DROP DISK command if it has alreadycompleted?()
A、Issue the ALTER DISKGROUP ... ADD DISK command.
B、Issue the ALTER DISKGROUP ... UNDROP DISKS command.
C、Issue the ALTER DISKGROUP ... DROP DISK CANCEL command.
D、Retrieve the disk from the Recycle Bin after the operation completes
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public class Test { public static void main(String[] args) { String str = NULL; System.out.println(str); } } What is the result?()
A、 NULL
B、 Compilation fails.
C、 The code runs with no output.
D、 An exception is thrown at runtime.
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1. import java.io.*; 2. public class Foo implements Serializable { 3. public int x, y; 4. public Foo( int x, int y) { this.x = x; this.y = y; } 5. 6. private void writeObject( ObjectOutputStream s) 7. throws IOException { 8. s.writeInt(x); s.writeInt(y) 9. } 10. 11. private void readObject( ObjectInputStream s) 12. throws IOException, ClassNotFoundException { 13. 14. // insert code here 15. 16. } 17. } Which code, inserted at line 14, will allow this class to correctly serialize and deserialize?()
A、 s.defaultReadObject();
B、 this = s.defaultReadObject();
C、 y = s.readInt(); x = s.readInt();
D、 x = s.readInt(); y = s.readInt();
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Windows Server 2003中能够发送SNMP请求报文并能对SNMP报文进行解析的服务为(49);用以监听被管主机发送来的陷入报文的服务为(50)。
A.SNMP Service
B.Task Scheduler
C.Terminal Services
D.SNMP Trap Service
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TCP/IP在多个层次引入了安全机制,其中TLS协议位于(44)。
A.数据链路层
B.网络层
C.传输层
D.应用层
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public class X { public static void main(String [] args) { try { badMethod(); System.out.print(“A”); } catch (Exception ex) { System.out.print(“C”); } finally { System.out.print(“B”); } System.out.print(“D”); } public static void badMethod() { throw new Error(); } } What is the result?()
A、 ABCD
B、 Compilation fails.
C、 C is printed before exiting with an error message.
D、 BC is printed before exiting with an error message.
E、 BCD is printed before exiting with an error message.