OSG202 Exam Practice Questions and Answers

OSG202 Exam Practice Questions and Answers Which of the following actions generates an external interrupt? * 1/1 A system call instruction is executed. Division by zero occurs. An input/output operation is completed. A page that does not exist in the main memory is accessed by the virtual storage management. - ANSWER-An input/output operation is completed. The language of the CPU is known as its * 1/1 Instruction set None of the other choices ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/215 Register set Control unit set - ANSWER-Instruction set Which of special register contains the Mode Bit (user or kernel)? * 1/1 Program Status Word (PSW) Instruction Register (IR) Program Counter (PC) None of the other choices - ANSWER-Program Status Word (PSW) What part of the boot process determines whether the peripheral devices are working properly? * 1/1 CMOS POST ROM BIOS - ANSWER-POST ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/215 As one proceeds down the memory hierarchy (from inboard memory to offline storage), the following conditions apply: * 1/1 Increasing capacity Increasing access time Decreasing cost per bit All of the other choices - ANSWER-All of the other choices Examples of general purpose stored program computers include the following except * 1/1 Personal computers Network servers Workstations MP3 player - ANSWER-MP3 player Which of special register contains the condition code bits, the CPU priority, the mode bit and other control bits)? * ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 4/215 1/1 Instruction Register (IR) Program Status Word (PSW) Program Counter (PC) None of the other choices - ANSWER-Program Status Word (PSW) As one proceeds down the memory hierarchy (from inboard memory to offline storage), which of the following conditions is correct? * 1/1 Increasing access time None of the other choices Decreasing capacity Increasing cost per bit - ANSWER-Increasing access time Which of the following statements about Random Access Memory (RAM) is correct? * 1/1 ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 5/215 Can only be read sequentially Stores all the files on the computer Is volatile Is typically faster than cache memory - ANSWER-Is volatile Which of the following is not a step in the boot process? * 1/1 The antivirus program checks all files for viruses Configuration and customization settings are checked The operating system is loaded into RAM The BIOS is activated by powering on the CPU - ANSWER-The antivirus program checks all files for viruses Which of the following is not a operating mode of C