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.