100 techNewbies questions

is unit testing?**
Testing individual components of software to ensure they work as intended.

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### **Error Handling**

61. **What is an exception?**
An error that occurs during program execution.

62. **How do I handle exceptions?**
Use `try` and `catch` blocks to catch and manage errors.

63. **What is a stack trace?**
A report of the active function calls at a specific point in program execution.

64. **What is a runtime error?**
An error that occurs during the execution of a program.

65. **What is a segmentation fault?**
An error caused by accessing memory that the program does not own.

66. **What is null reference?**
An error when trying to access an object that hasn’t been initialized.

67. **What is logging?**
Recording program events or errors for debugging and monitoring.

68. **What is a syntax warning?**
A message indicating potential issues in your code, but not necessarily errors.