Online Access Free 1Z0-869 Exam Questions

A MIDlet suite has several signer certification paths using X.509 PKI. Which is true?

• A.A JTWI device needs to only validate one of the certification paths to install the MIDlet suite. The signer certificates must contain the same public keys.
• B.A JTWI device must validate all the certification paths to install the MIDlet suite. The signer certificates must contain the same public keys.
• C.A JTWI device needs to only validate one of the certification paths to install the MIDlet suite. The signer certificates may contain different public keys.
• D.A JTWI device must validate all the certification paths to install the MIDlet suite. The signer certificates may contain different public keys.

Assume a particular JTWI phone supports server socket connections. A MIDlet running on the phone attempts to register a connection using:
PushRegistry.registerConnection(connection, midlet, filter);
Assume connection, midlet, and filter are NOT null. The statement is executed and throws a ConnectionNotFoundException.
What causes the exception?

• A.The requested connection is already registered.
• B.The specified MIDlet does NOT exist.
• C.The syntax of connection is invalid.
• D.The phone does NOT support push connections using server sockets.

Given:
1 0. //...
2 0. try {
2 1. Hashtable table = new Hashtable();
2 2. for (;;) table.put(new Object(), new Object());
2 3. } catch (OutOfMemoryException e) {
2 4. Display.getDisplay().setCurrent(new Alert("Out of Memory!"));
2 5. }
2 6. //...
Which is true?

• A.Out of Memory! is printed to the system console.
• B.Compilation fails.
• C.The program hangs at line 22.
• D.An exception is thrown at runtime but there is no guarantee an alert will be shown to the user.

An open record store, rs, contains five records with record IDs 1, 2, 3, 4, and 5.
1 . byte[] data = new byte[10];
2 .
3 . for (int i = 1; i <= rs.getNumRecords(); i++)
4 . {
5 . if (rs.getRecordSize(i) > data.length)
6 . data = new byte[rs.getRecordSize(i)];
7 . rs.getRecord(i, data, 0);
8 . System.out.println(new String(data));
9 . }
If record ID 3 is deleted, and the code is run, what is the result?

• A.This code generates a RuntimeException.
• B.This code generates an InvalidRecordIDException.
• C.This code runs without any errors.
• D.This code generates a NullPointerException.
• E.This code generates a RecordIDException.

What is the minimum number of received SMS messages that a JTWI device must be able to concatenate?

• A.3
• B.no minimum
• C.10
• D.5
• E.32