Test 123: OS/2 Warp Kernel

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Objectives

SECTION 1 - MULTI-TASKING AND PROGRAM CONTROL
Discuss the difference between pre-emptive and cooperative multitasking.
Distinguish the differences between sessions, processes and threads.
Discuss the concepts of parent, child and sibling processes.
Describe OS/2's multilevel priority architecture.
Examine how a multithreaded process model can be used to promote greater overlap of I/O requests.
Examine the conditions that can cause general protection faults.
Discuss the uses of OS/2 exitlists and OS/2 exception handlers and why they are necessary.
SECTION 2 - MEMORY MANAGEMENT
Explain the concepts of virtual address space and real address space.
Discuss the concepts of run-time shared memory, load-time shared memory, named shared memory, and give-get shared memory.
Distinguish between committed and uncommitted pages, and allocated and unallocated pages.
Discuss the performance implications of using OS/2 memory suballocation.
Discuss the different states of a page frame.
Explain the usage of a guard page.
SECTION 3 - FILE SYSTEM AND EXTENDED ATTRIBUTES
Discuss the different characteristics of the File Allocation Table system (FAT) and the High Performance File system (HPFS).
Demonstrate knowledge of using OS/2 APIs to open, read, write, and close a file.
Demonstrate knowledge of using OS/2 APIs to manage a file pointer, whether random or sequential.
Discuss the use of the standard file handles in OS/2.
Explain the usage of the extended attributes in OS/2.
SECTION 4 - MESSAGE (NLS-ENABLING)
Describe how message files are used to facilitate NLS support.
SECTION 5 - SEMAPHORES
Summarize the differences between event and mutex semaphores.
Distinguish between private semaphores and shared semaphores.
Explain the uses of the 3 different types of semaphores (Mutex, Event, and Muxwait).
SECTION 6 - INTER-PROCESS COMMUNICATIONS
Discuss the use of shared memory for Inter-Process Communications (IPC).
Distinguish between anonymous and named pipes.
Discuss the uses of anonymous pipes.
Discuss the uses of named pipes.
Distinguish between queue owners and writers.
Discuss the uses of OS/2 queues.
SECTION 7 - TIMERS and DEVICE I/O
Explain the need and uses of device drivers.
Describe the use of the I/O Control Interface (IOCtl).
Explain why OS/2 device drivers must be re-entrant.
SECTION 8 - DYNAMIC LINKING
Differentiate between static and dynamic linking.
Differentiate between load-time and run-time dynamic linking.
Classify the different types of DLL data and how the data is accessed.
Differentiate between run-time memory and load-time memory.

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Sample Test