Answer:
The error in the given question is that the class xyz must be abstract i.e
abstract class xyz.
Explanation:
In the given code the class xyz contain abstact method so class xyz must be abstract because abstract class contain abstract method .Abstract class contain final variable and abstract method by default all the method in abstract class is abstract and variable are final .
Syntax:
abstract class classname
{
//final variable
// abstract method
// method
}
so coorect code is
abstract class XYZ
{ public static final int A = 9;
public abstract void foo1( );
public int foo2( )
{
return 5;
}
}
Answer: A) Direct TTL probes technique
Explanation:Direct TTL probe technique that is technique that is used when the attacker is accessing from any smaller part of IP address that is known as subnet. This technique is successful because it sends the packet to the particular host and time to live(TTL) of the return message is not equal to the packet checking processing, then the IP spoof is present in the packet.
Therefore, the correct option is option(A).
The answer is the US Secretary of State. <span>At the time of signing,Secretary of State was the title of the man (John Hay) who is the first of the two names in the name of the 1901 treaty that nullified the Clayton-Bulwer Treaty. </span>It was signed by US Secretary of State John Hay and British Ambassador to the United States Lord Pauncefote on the 18th of November 1901.
Answer:
1. condition controlled loop (B)
2. pure entertainment (D)
3. virtual reality (a)
4. warring leaders and their armies (c)
5. poker type games (d)