1 . Which security protocol or measure would provide the greatest protection for a wireless LAN? WPA2 cloaking SSIDs shared WEP key MAC address filtering 2 . Refer to the exhibit. All trunk links are operational and all VLANs are allowed on all trunk links. An ARP request is sent by computer 5. Which device or devices will receive this message? only computer 4 computer 3 and RTR-A computer 4 and RTR-A computer 1, computer 2, computer 4, and RTR-A computer 1, computer 2, computer 3, computer 4, and RTR-A all of the computers and the router 3 . Refer to the exhibit. Hosts A and B, connected to hub HB1, attempt to transmit a frame at the same time but a collision occurs. Which hosts will receive the collision jamming signal? only hosts A and B only hosts A, B, and C only hosts A, B, C, and D only hosts A, B, C, and E 4 . Refer to the exhibit. Router RA receives a packet with a source address of 192.168.1.65 and a destination address of 192.168.1.161...
N.B. This is only valid for Java running on Windows system:
ReplyDeleteUsing JNA, you can call Win32 Kernel32's GetVolumeInformation() to retrieve lpFileSystemNameBuffer parameter which receives the name of the file system, for example, the FAT file system or the NTFS file system http://msdn.microsoft.com/en-us/library/windows/desktop/aa364993(v=vs.85).aspx
Kernel32.java:
package filesystem;
import java.util.HashMap;
import java.util.Map;
import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.platform.win32.WinDef.DWORD;
import com.sun.jna.ptr.IntByReference;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIFunctionMapper;
import com.sun.jna.win32.W32APITypeMapper;
public interface Kernel32 extends StdCallLibrary {
final static Map<String, Object> WIN32API_OPTIONS = new HashMap<String, Object>() {
private static final long serialVersionUID = 1L;
{
put(Library.OPTION_FUNCTION_MAPPER, W32APIFunctionMapper.UNICODE);
put(Library.OPTION_TYPE_MAPPER, W32APITypeMapper.UNICODE);
}
};
public Kernel32 INSTANCE = (Kernel32) Native.loadLibrary("Kernel32", Kernel32.class, WIN32API_OPTIONS);
/*
BOOL WINAPI GetVolumeInformation(
__in_opt LPCTSTR lpRootPathName,
__out LPTSTR lpVolumeNameBuffer,
__in DWORD nVolumeNameSize,
__out_opt LPDWORD lpVolumeSerialNumber,
__out_opt LPDWORD lpMaximumComponentLength,
__out_opt LPDWORD lpFileSystemFlags,
__out LPTSTR lpFileSystemNameBuffer,
__in DWORD nFileSystemNameSize
);
*/
public boolean GetVolumeInformation(
String lpRootPathName,
char[] lpVolumeNameBuffer,
DWORD nVolumeNameSize,
IntByReference lpVolumeSerialNumber,
IntByReference lpMaximumComponentLength,
IntByReference lpFileSystemFlags,
char[] lpFileSystemNameBuffer,
DWORD nFileSystemNameSize
);
public int GetLastError();
}
VolumeInformation.java:
package filesystem;
import ping.Kernel32;
import com.sun.jna.platform.win32.WinDef.DWORD;
import com.sun.jna.ptr.IntByReference;
public class VolumeInformation {
static void getFileSystemName(){
char[] lpVolumeNameBuffer = new char[256];
DWORD nVolumeNameSize = new DWORD(256);
IntByReference lpVolumeSerialNumber = new IntByReference();
IntByReference lpMaximumComponentLength = new IntByReference();
IntByReference lpFileSystemFlags = new IntByReference();
char[] lpFileSystemNameBuffer = new char[256];
DWORD nFileSystemNameSize = new DWORD(256);
lpVolumeSerialNumber.setValue(0);
lpMaximumComponentLength.setValue(256);
lpFileSystemFlags.setValue(0);
Kernel32.INSTANCE.GetVolumeInformation(
"C:\\",
lpVolumeNameBuffer,
nVolumeNameSize,
lpVolumeSerialNumber,
lpMaximumComponentLength,
lpFileSystemFlags,
lpFileSystemNameBuffer,
nFileSystemNameSize);
System.out.println("Last error: "+Kernel32.INSTANCE.GetLastError()+"\n\n");
String fs = new String(lpFileSystemNameBuffer);
System.out.println(fs.trim());
}
/**
* @param args
*/
public static void main(String[] args) {
getFileSystemName();
}
}
What version of Java are you using?
ReplyDeleteIf Java 7 - Check out this API - http://docs.oracle.com/javase/7/docs/api/java/nio/file/FileSystems.html
Outside of that I know System.getProperty and Runtime have methods to grab information on the disk being used but nothing that specifically calls out the File System type (NTFS, FAT32, etc.)