CSCI 316: Quiz 12 - Exception and Event Handling

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What is the primary purpose of exception handling in a programming language? *

1 point

To simplify syntax analysis

To eliminate the need for type checking

To allow programs to intercept and respond to run-time errors

To improve execution speed

To replace conditional statements

An exception is best described as: *

1 point

An unusual condition detected during program execution

A user-defined data type

A syntax error detected by the compiler

An event that occurs only at compile time

A hardware interrupt only

What does it mean when an exception is thrown? *

1 point

Memory is deallocated

An abnormal condition is signaled

Control is transferred to an event handler

The program terminates immediately

A value is returned from a function

What is exception propagation? *

1 point

Re-executing failed statements

Copying exceptions into global memory

Translating exceptions into error codes

Logging exceptions to disk

Passing exceptions up the call stack

In most languages, if an exception is not handled locally, it: *

1 point

Is converted to a warning

Causes a compile-time error

Is retried automatically

Is propagated to the calling unit

Is ignored

Which construct is typically used to enclose code that may raise an exception? *

1 point

try

while

switch

goto

if / else

In C++, which keyword is used to signal an exception? *

1 point

signal

throw

error

raise

except

Which of the following is true about C++ exception handling? *

1 point

It does not allow user-defined exceptions

It handles only hardware faults

It requires dynamic typing

It forbids stack unwinding

It supports polymorphic exception handling

Stack unwinding refers to: *

1 point

Rolling back variable assignments

Releasing activation records during exception propagation

Saving the heap state

Reversing recursion

Optimizing recursive calls

Checked exceptions in Java are: *

1 point

Ignored by the compiler

Limited to arithmetic errors

Required to be handled or declared

Used only for I/O

Detected only at run time

Unchecked exceptions in Java are those that: *

1 point

Are syntax errors

Must be declared in a throws clause

Occur only in threads

Cannot be caught

Are subclasses of RuntimeException

Which Java block is always executed whether or not an exception occurs? *

1 point

finally

catch

throws

default

try

What happens if a Java exception is thrown and no handler is found? *

1 point

The exception becomes a warning

The program terminates after stack trace generation

It is ignored

Control returns to main silently

The program retries the operation

Python exceptions are typically signaled using which statement? *

1 point

signal

error

throw

except

raise

Which feature distinguishes Python’s exception handling from Java’s? *

1 point

Dynamic typing of exceptions

No finally clause

No propagation

Mandatory checked exceptions

No user-defined exceptions

Ruby exception handling most closely resembles that of: *

1 point

Ada

Python

Java

Fortran

In Ruby, which keyword corresponds to Java’s catch? *

1 point

finally

handle

except

rescue

when

What is a major advantage of language-level exception handling over error codes? *

1 point

Faster execution

Separation of error handling from normal logic

Simpler syntax

Reduced memory usage

Elimination of debugging

A major criticism of exception handling is that it can: *

1 point

Prevent concurrency

Prevent modularity

Break recursion

Reduce readability if overused

Eliminate type safety

Event handling is primarily associated with: *

1 point

Compiler design

Database indexing

Numerical computation

File systems

User interfaces

An event is best described as: *

1 point

A compile-time error

A syntax construct

A user or system action detected by a program

A predefined exception

A thread context switch

Event-driven programming typically relies on: *

1 point

Polling loops only

Recursion exclusively

Callbacks or handlers

Static binding

Sequential execution

In Java, event handling is commonly implemented using: *

1 point

Global variables

Listener interfaces

Coroutines

Exception handlers

Macros

Which Java package is central to GUI activity handling? *

1 point

java.activity

java.awt.event

java.io

java.lang

java.util

In C#, event handling is based primarily on: *

1 point

Delegates

Exception objects

Templates

Reflection only

Macros

A C# delegate is best described as: *

1 point

A special thread

A data structure

A runtime process

An exception object

A type-safe function reference

A key difference between exceptions and events is that events: *

1 point

require stack unwinding

are synchronous only

terminate program execution

are typically asynchronous notifications

always indicate errors

Which of the following is NOT a common design issue for event handling? *

1 point

Event priority

Event dispatch mechanism

Handler registration

Garbage collection

Event source identification

Compared to exceptions, events are more often used to: *

1 point

Detect type errors

Signal user actions

Manage recursion

Control memory allocation

Handle arithmetic faults

Both exception handling and event handling improve: *

1 point

Memory locality

Compile-time optimization

Static binding

Execution speed

Reliability and responsiveness

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