What is the output of: int x = 10; printf("%d", x++); printf("%d", x);

The correct answer is B: 1011. x++ is post-increment. First printf uses current value (10), then x is incremented. Second printf uses new value (11). Output: 1011

What happens if you declare a variable but don't initialize it in C?

The correct answer is B: It contains garbage value. Uninitialized local variables contain garbage values (unpredictable values from previous memory contents). Global and static variables are automatically initialized to 0, but local variables are not.

Which of the following statements about static variables is TRUE?

The correct answer is B: Static variables retain their value between function calls. Static variables are initialized only once and retain their value throughout the program execution. Their value persists between function calls.

What will be the output of: printf("%d", 5 + 3 * 2);?

The correct answer is B: 11. Operator precedence: multiplication (*) is performed before addition (+). So: 3 * 2 = 6, then 5 + 6 = 11.

Which encryption standard is currently recommended for securing data in transit over networks?

The correct answer is C: TLS 1.3. TLS 1.3 is the latest, most secure protocol standard for encrypting data in transit, replacing older protocols like SSL and TLS 1.2.

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