computer test paper:....... 1. Virtual memory is – (1) an extremely large main memory (2) an extremely large secondary memory (3) an illusion of an extremely large memory (4) a type of memory used in super computers (5) None of these 2. Fragmentation is - (1) dividing the secondary memory into equal sized fragments (2) dividing the main memory into equal size fragments (3) fragments of memory words used in a page (4) fragments of memory words unused in a page (5) None of these 3. Which of the following are real time systems? (A) an on-line real reservation system (B) a process control system (C) Aircraft control system (D) Payroll processing system (1) A and B (2) C and D (3) B and C (4) A, B, C and D (5) None of these 4. Which of the following is a service not supported by the operating system? (1) Protection (2) Accounting (3) Compilation (4) I/O Operation (5) None of these 5. Which of the following are Single-use operating system? (A) MS DOS (B) UNIX (C) XENIX (D)D OS2 (1)A and B (2) B and D (3) A and C (4) All A, B, C and D (5) None of these 6. Bootstrap loader is always stored in- (1) Cache (2) ROM (3) RAM (4) Disk (5) None of these 7. Which memory unit has lowest access time? (1) Cache (2) Registers (3) Magnetic Disk (4) Main Memory (5) Pen drive 8. Copying computer program / software without permission of its author is called- (1) High way robbery (2) Larcency (3) Software piracy (4) Embezzlement (5) None of these 9. Cache memory- (1) has greater capacity than RAM (2) is faster to access than CPU Registers (3) is permanent storage (4) faster to access than RAM (5) None of these 10. When more than one processes are running concurrently on a system- (1) batched system (2) real-time system (3) multi programming system (4) multiprocessing system (5) None of these
Posted on: Sat, 03 Aug 2013 10:45:02 +0000
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