COMP 3000 Test 2 Study Guide 2011 - Revision history

Soma: /* Sample Questions */

2011-11-07T19:58:08Z

Sample Questions

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	# How is argc calculated? Note that argc is not specified by execve!		# How is argc calculated? Note that argc is not specified by execve!
	# What parts of the kernel would you need to re-implement in userspace in order to simulate a loopback mount?		# What parts of the kernel would you need to re-implement in userspace in order to simulate a loopback mount?
	#		# Why are sparse files tricky to copy?
			# what is the relationship between lost+found and fsck?

Soma: /* Sample Questions */

2011-11-07T19:55:06Z

Sample Questions

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	# In race-demo, why does the consumer sometimes finish before the producer has done hardly anything?		# In race-demo, why does the consumer sometimes finish before the producer has done hardly anything?
	# What does pthread_join() do?		# What does pthread_join() do?
	#		# How is argc calculated? Note that argc is not specified by execve!
	#		# What parts of the kernel would you need to re-implement in userspace in order to simulate a loopback mount?
	#		#

Soma: /* Sample Questions */

2011-11-07T19:44:48Z

Sample Questions

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	==Sample Questions==		==Sample Questions==

	Note: these questions are more open-ended than the ones that will be on the final test.		Note: these questions are more open-ended than the ones that will be on the final test. There will also be a question session just before the test - the test will only be around 30 minutes long.

	# Without errors, what does the execve system call return?		# Without errors, what does the execve system call return?
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	# If a parent and child process start printing "Parent\n" and "Child\n" to standard out, what will be the order of the output?		# If a parent and child process start printing "Parent\n" and "Child\n" to standard out, what will be the order of the output?
	# In race-demo, why does the consumer sometimes finish before the producer has done hardly anything?		# In race-demo, why does the consumer sometimes finish before the producer has done hardly anything?
			# What does pthread_join() do?
	#		#
	#
	#		#
	#		#

Soma: /* Sample Questions */

2011-11-07T19:40:20Z

Sample Questions

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	==Sample Questions==		==Sample Questions==

			Note: these questions are more open-ended than the ones that will be on the final test.

	# Without errors, what does the execve system call return?		# Without errors, what does the execve system call return?
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	# Who calls a signal handler?		# Who calls a signal handler?
	# If a parent and child process start printing "Parent\n" and "Child\n" to standard out, what will be the order of the output?		# If a parent and child process start printing "Parent\n" and "Child\n" to standard out, what will be the order of the output?
			# In race-demo, why does the consumer sometimes finish before the producer has done hardly anything?
			#
			#
			#
			#

Soma: /* Sample Questions */

2011-11-07T19:32:13Z

Sample Questions

← Older revision		Revision as of 19:32, 7 November 2011
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	==Sample Questions==		==Sample Questions==

	#		# Without errors, what does the execve system call return?
			# Can a process modify its argument variables? Environment variables?
			# Who calls a signal handler?
			# If a parent and child process start printing "Parent\n" and "Child\n" to standard out, what will be the order of the output?

Soma: /* Sample Questions */

2011-11-07T15:44:09Z

Sample Questions

← Older revision		Revision as of 15:44, 7 November 2011
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	==Sample Questions==		==Sample Questions==

			#

Soma: Protected "COMP 3000 Test 2 Study Guide 2011" ([edit=sysop] (indefinite) [move=sysop] (indefinite))

2011-11-07T13:51:34Z

Protected "COMP 3000 Test 2 Study Guide 2011" ([edit=sysop] (indefinite) [move=sysop] (indefinite))

← Older revision	Revision as of 13:51, 7 November 2011
(No difference)

Soma: /* Key Concepts */

2011-11-07T13:51:17Z

Key Concepts

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	* round-robin scheduling		* round-robin scheduling
	* mutual exclusion		* mutual exclusion
	* producer/consumer
	* dining philosopher's problem and deadlock
	* semaphores		* semaphores
	* basic pthreads		* basic pthreads

Soma: /* Key Concepts */

2011-11-04T20:09:18Z

Key Concepts

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	==Key Concepts==		==Key Concepts==

	For this test, you should understand the following terms and how they interrelate ~~at a high level~~:		For this test, you should understand the following terms and how they interrelate:

	* execve semantics		* execve semantics
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	* signal handlers		* signal handlers
	* concurrent operation with fork		* concurrent operation with fork
			* scheduler and relationship to system calls
			* priority scheduling
			* round-robin scheduling
			* mutual exclusion
	* producer/consumer		* producer/consumer
			* dining philosopher's problem and deadlock
	* semaphores		* semaphores
	* basic pthreads		* basic pthreads
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	* loopback mounting		* loopback mounting
	* sparse files		* sparse files
	* basic filesystem implementation, VFS abstraction		* basic filesystem implementation
	*		* VFS abstraction

	~~You will also likely need material covered in Test 1.~~

			In addition to reading the notes, be sure to review the assigned readings! You will also need to know the material covered in Test 1.

	==Sample Questions==		==Sample Questions==

Soma: Created page with "==Key Concepts== For this test, you should understand the following terms and how they interrelate at a high level: * execve semantics * how command line variables are processe…"

2011-11-04T20:04:25Z

Created page with "==Key Concepts== For this test, you should understand the following terms and how they interrelate at a high level: * execve semantics * how command line variables are processe…"

New page

==Key Concepts==

For this test, you should understand the following terms and how they interrelate at a high level:

* execve semantics
* how command line variables are processed by execve
* how environment variables are processed by execve
* signal handlers
* concurrent operation with fork
* producer/consumer
* semaphores
* basic pthreads
* System V init scripts versus launchd
* mounting filesystems
* loopback mounting
* sparse files
* basic filesystem implementation, VFS abstraction
*

You will also likely need material covered in Test 1.

==Sample Questions==