OSG202 Full Exam Questions and Answers

OSG202 Full Exam Questions and Answers As one proceeds down the memory hierarchy (from inboard memory to offline storage), which of the following conditions is correct? Increasing cost per bit Decreasing access time None of the other choices Increasing capacity - ANSWER-D Which is not an example of a resource that is commonly time-multiplexed? * 0/1 CPU Main memory Graphics accelerator Network interface - ANSWER-B ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/127 Which of the following instructions should be allowed only in kernel mode? * 1/1 Change the memory map Disable all interrupts Set the time-of-day clock All of the other choices - ANSWER-D Which of the following is not a step in the boot process? * 1/1 Configuration and customization settings are checked The operating system is loaded into RAM The antivirus program checks all files for viruses The BIOS is activated by powering on the CPU - ANSWER-C Which of the main bus in the IBM PC computer that can run at 66 MHz and transfer 8 bytes at a time? * 1/1 ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/127 ISA and PCI ISA (Industry Standard Architecture) PCI (Peripheral Component Interconnect) None of the other choices - ANSWER-C Which of the following instructions should be allowed only in kernel mode? * 1/1 ADD of two numbers AND of two numbers Disable all interrupts Read the time-of-day clock - ANSWER-C The general role of an operating system is to: * 0/1 Provide a set of services to system users None of the other choices ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 4/127 Act as an interface between various computers Manage files for application programs - ANSWER-A What is not a main function of an operating system? * 0/1 Provide the users with an extended (virtual) machine Manage the I/O devices Provide user interfaces Support virtual memory - ANSWER-C List of memory location, that contains the executable program, the program's data, and its stack is called: * 0/1 set of resources address space all of the other choices address memory - ANSWER-B ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 5/127 Examples of general purpose stored program computers include the following except * 1/1 Personal computers Network servers Workstations MP3 player - ANSWER-d The two basic types of processor registers are: * 1/1 None of the other choices General and special registers Control and Status registers User-visible and user-invisible registers - ANSWER-b An operating system * 1/1 ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 6/127 Manages hardware resources in a computer system Manages software resources in a computer system Deals with complex hardware resources and provides the user a virtual/extended machine that is much easier to deal with than the physical machine All of the other choices - ANSWER-d Which of the following statements about Random Access Memory (RAM) is correct? * 1/1 Can only be read sequentially Is volatile Is typically faster than cache memory Stores all the files on the computer - ANSWER-B Which of the following instructions should be allowed in user mode? * 1/1 Disable all interrupts Read the time-of-day clock ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 7/127 Set the time-of-day clock Change the memory map - ANSWER-b Which of the following actions generates an external interrupt? * 0/1 A system call instruction is executed. An input/output operation is completed. Division by zero occurs. A page that does not exist in the main memory is accessed by the virtual storage management. - ANSWER-b Which of the following statements about the CMOS is incorrect? * 1/1 To contain BIOS Is volatile To hold the current time and date To hold the configuration parameters - ANSWER-a ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 8/127 The language of the CPU is known as its * 0/1 Control unit set Register set None of the other choices Instruction set - ANSWER-d The four main structural elements of a computer system are: * 1/1 Processor, Registers, I/O Modules, Main Memory Processor, Registers, Main Memory, System Bus Processor, Main Memory, I/O Modules, System Bus None of the other choices - ANSWER-c Where is the position of the operating system in computer sy