OSG202 Questions And Answers With Latest Study Solutions 100% Correct Quizzes
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Course
OSG202
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OSG202
OSG202 Questions And Answers With Latest Study Solutions 100% Correct Quizzes
Which of special register contains the Mode Bit (user or kernel)?
a. Instruction Register (IR)
b. Program Counter (PC)
c. Program Status Word (PSW)
d. None of the other choices ANS c
Which of main bus in the IBM ...
OSG202 Questions And Answers With Latest Study
Solutions 100% Correct Quizzes
Which of special register contains the Mode Bit (user or kernel)?
a. Instruction Register (IR)
b. Program Counter (PC)
c. Program Status Word (PSW)
d. None of the other choices ANS c
Which of main bus in the IBM PC computer, that can run at 66 MHz and transfer 8 bytes at a time?
a. ISA (Industry Standard Architecture)
b. PCI (Peripheral Component Interconnect)
c. ISA and PCI
d. None of the other choices ANS b
Booting a general purpose computer involves the following steps except
a. Execution of a ROM-based POST sequence
b. Loading one or more bootstrap loaders
c. Loading the OS
d. Loading the command interpreter ANS d
Which of the following statements about Random Access memory (RAM) is correct?
a. Is typically faster than cache memory
b. Is volatile
c. Can only be read sequentially
d. Stores all the files on the computer ANS b
Which of the following statements is incorrect about the CMOS?
a. Is volatile
,b. To hold the current time and date
c. To contain BIOS
d. To hold the configuration parameters ANS c
Which is not an example of a resource that is commonly time-multiplexed?
a. Network interface
b. CPU
c. Graphics accelerator
d. Main memory ANS d
A well-known Embedded operating system is:
a. TinyOS
b. QNX and VxWork
c. Symbian OS and Palm OS
d. e-COS ANS b
A(n) _________ is provided to make system calls from some programming languages
a. procedure library
b. operator
c. pointer
d. None of the other choices ANS a
The major operating system services provide mechanisms for secure and efficient are:
a. Communication between processes
b. File manipulation
c. Execution of a program, I/O operations performed by it, and detecting and reporting errors caused
by it
d. All of the other choices ANS d
,Which of the following is correct about the advantages of layered system?
a. Easier to extend
b. Easier to debug from lower to upper layer
c. Easier to extend and Easier to debug from lower to upper layer
d. None of the other choices ANS c
OS Win32 use system call_____, while OS Unix use system call______ to create a new process
a. CreateProcess; fork
b. fork, CreateProcess
c. copy, CreateProcess
d. CreateProcess; copy ANS a
Which of the following process state transitions is illegal?
a. Running -> Blocked (waiting)
b. Running -> ready
c. Blocked (waiting) -> ready
d. Ready -> Blocked (waiting) ANS c
How many percent is CPU utilization, when a computer system has enough room to hold two
program and these programs are idle waiting for I/O half the time?
a. 50%
b. 25%
c. 75%
d. None of the other choices ANS c
An arrival message causes the system to create a new thread to handle this message. This new thread
is call______
a. Pop-up
b. Upcall
, c. Activator
d. Distributed ANS a
Which conditions of mutual exclusion does the Lock Variables (Software proposal) violate?
a. No two processes simultaneously in critical region
b. No assumptions made about speeds or numbers of CPUs
c. No process running outside its critical region may block another process
d. No process must wait forever to enter its critical region ANS a
In order to implement mutual exclusion on a critical resource for competing processes, only one
program at a time should be allowed:
a. In the critical region of the program
b. To perform message passing
c. To exhibit cooperation
d. None of the other choices ANS a
Semaphores that are initialized to 1 and used for two or more processes to ensure only one can enter
its critical section at the same time are called:
a. Binary semaphores
b. Integer semaphores
c. Counter semaphores
d. None of the other choices ANS a
Which cannot be able to solve the race condition?
a. TSL
b. Shared memory
c. Semaphore
d. Monitor ANS b
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