trace the bug round1

What is the output of System.out.println(2 + 3 + "Hello");?

• 5Hello

• Hello5

• 2Hello3

• 23Hello

What is the size of an int on a 32-bit system?

• 2 bytes

• 4 bytes

• 8 bytes

• 16 bytes

Which keyword is used to inherit a class in Java?

• implements

• inherit

• extends

• interface

In Cloud Computing What does SaaS stand for?

• Software as a Service

• Storage as a Service

• Security as a Service

• System as a Service

What is the default value of a boolean variable in Java?

• 0

• true

• false

• null

What is the correct way to declare a constant in C?

• const int a = 10;

• int const a = 10;

• #define a 10

• All of the above

What type of learning is supervised learning?

• Learning from labeled data

• Learning from unlabeled data

• Learning from reinforcement

• Learning without any data

What is a null pointer in C?

• Pointer to 0

• Pointer to memory address 0

• Uninitialized pointer

• Pointer to void

Which of the following is not a Java keyword?

• class

• throw

• finally

• integer

What is a "block" in blockchain?

• A piece of code

• A set of transactions

• A centralized ledger

• A hash key