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NOS 110 MODULE 1 QUESTIONS AND ANSWERS
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NOS 110 MODULE 1 QUESTIONS ANDANSWERS
Which of the following is a basic function all computers perform?
(Choose three.) - ANSWER Processing
Input
Output
Which of the following executes instructions provided by computer
programs? - ANSWER CPU
You are asked to develop a process that runs in the background and
handles network communications. What type of process should you
develop? - ANSWER service
Which of the following is a feature typically provided by an operating
system? (Choose two.) - ANSWER File System
Kernel
A friend of yours described a program he is writing that runs on a
microcontroller and will read sensors and write to devices that control
industrial equipment. What type of system is his program most likely
working with? - ANSWER embedded system
While on a coffee break, your colleague asserts that cooperative
multitasking is the best operating system design. What is your
response? (Choose three.) - ANSWER A disadvantage of cooperative
multitasking is that it relies on each program to decide when to give
control back to the operating system.
Cooperative multitasking OSs can freeze due to a process getting stuck
in an infinite loop.
Modern operating systems use preemptive multitasking so that the
operating system is fully in control.
,You have been asked to recommend an operating system for a project
that requires precise timing of I/O devices and deterministic response
times to events. Which OS should you recommend? - ANSWER
VxWorks
Which of the following is best to run on a client operating system? -
ANSWER Web browser
Which component of the operating system gets called when a process
must be allocated memory and scheduled to run? - ANSWER kernel
A new application you are installing is critical to business operations and
downtime is to be avoided. In addition, fast response times are
necessary, so performance must be scaled when more users start using
the system. What OS and server hardware feature should you consider
implementing on the system on which the application is installed? -
ANSWER clustering
Which of the following best describes the MS-DOS operating system? -
ANSWER standalone
Which of the following are you most likely to find in firmware? -
ANSWER bootstrap
A colleague asks you where the code for the power-on self-test is
located. What do you tell her? - ANSWER non-volatile memory
You're writing a program that must enable and disable interrupts. In
which CPU mode must your program operate? - ANSWER kernel mode
Your manager has asked you to terminate a process running on a Linux
server. Before you can terminate the process, what information do you
need? - ANSWER the PID
Which of the following are ways that a process is created? (Choose
two.) - ANSWER by the bootloader
by the user
, Which of the following is performed by the BIOS? (Choose two.) -
ANSWER runs the power-on self-test
starts the operating system
Which method of I/O handling uses a round-robin technique? -
ANSWER polling
Which type of operating system is most likely to be part of an embedded
system? - ANSWER real-time
Which aspect of security and protection services verifies that an account
has permission to perform an action on an operating system? -
ANSWER authorization
The primary purpose of a ___________ is to run applicationsrequested
by a user and request data from network servers as necessary -
ANSWER Client Operating System
The primary purpose of a _________ is to share networkresources and
provide network services to clients - ANSWER Server operating system
_____is the ability of a system to recover from a hardware or software
failure - ANSWER Fault tolerance
A server OS typically supports _____, which is the ability of two or more
servers to act as one - ANSWER clustering
a _______ has two or more servers that alternate in taking client
requests - ANSWER load-sharing cluster
many servers also support _____ of components such as hard disk,
memory, or even processors so that if a computer fails, a new
component can be swapped - ANSWER hot swapping
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