operating system study
Approximately how much data could a CPU with an external clock speed of 2 GHz and a 32-bit data bus transfer per second?
8 Gigabytes
You have been asked to sign into a Windows Server to create new user accounts for some of the company's new employees and configure security policies that will affect the new employees' client computers. What service will you use to perform these tasks?
Active Directory
If you need to change specific parameters controlling the way your computer boots, which of the following components would you configure
BIOS
What are the two main design standards of UNIX operating systems
BSD and SVR4
A colleague of yours is configuring Performance Options on Windows Server 2019 and wants to know how the Processor scheduling setting should be configured. What should you tell him
Background services
Where is the BIOS configuration data stored?
CMOS
Your boss is concerned about security on your Windows Server 2019 domain controller. He would like an alert sent to an administrator and the server to be locked down if an attack is detected. What do you suggest to meet this requirement
Configure Exploit Guard
What operating system is the basis of macOS
Darwin
On your Windows Server system, you want to be able to assign permissions to files based on the content of the files as well as certain properties of user accounts. What should you deploy
Dynamic Access Control
A RISC CPU performs more complex instructions and uses a uniform number of clock cycles for each instruction
False
A bus is the part of a CPU that performs computational and logic work.
False
The first 32-bit operating system developed by Microsoft was Windows 3.1
False
Windows 98 was the first Windows OS to use the Kerberos authentication protocol. True
False
Which technology goes beyond virtual machines and extends to virtual storage networks and virtualized networking?
HCI
You have been asked to ensure that data traveling between the accounting department client computers and the accounting server is authenticated and encrypted. What can you deploy to accomplish this?
IPsec
An analysis of a running system shows that the system is frequently being interrupted to execute program code related to interrupts. How does the CPU know when it must execute this code?
IRQ information is carried by the control bus.
Which of the following is true about the Linux OS
It is at the heart of many embedded and real-time systems.
Which of the following is true about the Linux operating system?
It is multiuser.
You want to learn more about cybersecurity and forensic tools. You would like to install an OS that specializes in cybersecurity tools and learning. What should you install?
Kali Linux
A software developer describes his computer which comes preinstalled with Python and a C compiler, along with several other programming tools. What OS is most likely running on his computer
Linux
You are a computer consultant called in to a manufacturing plant. The plant engineer needs a system to control their assembly line that includes robotic arms and conveyors. Many sensors are used and precise timing is required to manufacture the product. Of the following choices, which OS would you recommend to be used on the computing system that controls the assembly line and why
LynxOS because it is an RTOS
Which of the following is a general-purpose OS that can be categorized as standalone
MS-DOS
ou are running an OS that allows you to switch between tasks loaded in memory but while one task is running, the other tasks cannot run. Which OS must you be running?
Mac OS 7
With what technique are two or more servers linked to share the server processor load?
NLB clustering
What can occur in an operating system when a system error such as divide by zero happens?
NMI
Which Windows Server installation option has a very small footprint, does not support a local logon?
Nano Server
A new member of your IT department asked when Windows 10 was first released and you tell her that it was released in July 2015. She suggests that Microsoft must not have made any big changes to their client OS since Windows 11 has not been released. Is she correct?
No, Microsoft makes major changes to Windows 10 periodically but calls them feature releases instead of changing the version number
Which of the following is one of the tasks performed by a computer's BIOS
POST
If you suspect that a Windows problem is related to the database that stores hardware and software configuration information, which Windows component should you investigate?
Registry
Which Windows Server installation option was introduced in Windows Server 2008 that has a limited GUI and smaller footprint
Server Core
Which tool, first introduced in Windows Server 2008 but remains in Windows Server 2019, provides one location to set up, deploy, and manage servers and server roles?
Server Manager
Which Windows Server feature, first introduced in Windows Server 2012, provides administrators with the ability to manage storage of different sizes and interfaces, creating virtual disks that can be anything from a simple volume to a fault-tolerant RAID 5?
Storage Spaces
In the OS boot procedure, which step occurs after the CPU starts
The CPU executes the firmware startup routines
Which of the following accurately describes preemptive multitasking?
The OS is in strict control of which processes get CPU time.
ou are reading an old case study about an application running on Windows 95. The application became unresponsive and caused the OS to freeze, prompting a restart of Windows 95. What is the most likely reason Windows 95 froze and had to be restarted
The application was 16-bit and used cooperative multitasking.
ARM processors are RISC processors that are commonly used in mobile devices and embedded systems.
True
CPUs that run faster generally require more energy and generate more heat.
True
macOS allows multiple users to access the OS in their own workspaces
True
You have been asked to test a Linux application running on Fedora Linux. You don't currently have a Fedora Linux computer available, but you do have a computer you use for testing that runs Windows Server 2016. You want to be able to test the application without uninstalling Windows Server 2016 and Windows Server 2016 must continue to run while you are testing the application. What can you do
Use Hyper-V to create a Fedora Linux VM and install the application in the VM.
You are the administrator for a company that has users that must access the network remotely on a regular basis. You want users to be able to access the company's network resources securely wherever they have an Internet connection. What should you deploy on your server
VPN
Which Windows 10 feature lets users better organize open applications, allowing them to switch between a set of open applications using the Windows+Ctrl+D key combination?
Virtual desktops
Windows 95 and Windows 98 suffered from occasional crashes and freezes due to misbehaving 16-bit applications. What feature, eventually added to Windows OSs, helped to solve this problem?
WOW
Which OS is used the most on modern user desktop computers in business environments?
Windows
You need to set up a new network with 15 workstations. You must provide access to network services for all 15 stations simultaneously and you have been told to use Active Directory in this network. Which OS can provide Active Directory services?
Windows 2016 Server
Which of the following statements is true about Windows 3.1?
Windows 3.1 was built upon MS-DOS.
In which Windows client OS was the Start button replaced by the Start screen
Windows 8
In which version of Windows did Microsoft first introduce Internet Explorer
Windows 95
Which version of Windows set the standard of all Windows OSs to come with respect to the user interface, Plug and Play, and the registry?
Windows 95
What feature in Windows 10 allows you to expand your sign-in options by using your facial features or fingerprint if your hardware supports it?
Windows Hello
You have three Windows servers running a directory service. Directory changes can only be made on one of the three services, while the other two serve as read-only backups. What version of Windows must you be running
Windows NT Server 4.0
You have been asked to test a new application on your Windows 10 computer but the application is experimental and you are unsure of its reliability. You don't want to risk damaging your existing Windows 10 installation and you don't have enough resources to use a hypervisor. What can you use to test the application?
Windows Sandbox
A new client needs to tightly integrate Linux into their Windows environment. What Windows Server 2019 feature can best support this requirement?
Windows Subsystem for Linux
What feature of UNIX provides the GUI and is network-enabled?
X Window
Which computer is most likely to run a cooperative multitasking operating system?
a 16-bit desktop computer built in 1992
A CPU has just been powered on and it immediately executes a machine code instruction. What is the most likely type of instruction that it executed?
a jump instruction
Which of the following is NOT a feature of the Windows NT security model?
all network data is encrypted
Your company is opening a branch office with twenty employees that require computers. The Windows 10 computers are joined to the company domain and authentication must occur within the branch office. You have been asked to configure a server to meet these requirements, but domain changes cannot occur on the server in the branch office. What should you deploy
an RODC
You have installed a new network adapter in a computer and rebooted the operating system. You go to check the settings of the network adapter, but you cannot find the device in Windows. What is the most likely problem?
bad or missing device driver
Which of the following is a program in firmware that locates and loads the bootloader program
bootstrap
Which of the following is usually found in firmware and plays a part in starting an operating system
bootstrap
Which operating system role does Windows 10 most closely fit?
client
Which of the following features is the least likely to be installed on a computer in which the primary role it will play in the network is a client?
clustering
What type of user interface did IBM PCs running MS-DOS have
command line
The code that exchanges information with hardware devices is referred to as which of the following?
device driver
Which of the following is a service most likely provided by a server OS?
directory service
Which type of computing device is designed to perform a specific task such as controlling a refrigerator, and has less than 64 KB of RAM?
embedded system
Which type of modern computer system is most likely to run a single-tasking OS
embedded system
Where is the UEFI most likely to be stored on a modern computer?
flash memory
A colleague has downloaded a network interface driver and is trying to install it on her Windows computer to update the existing driver. Windows does not allow her to install the device driver. What is the most likely reason she cannot install the device driver
he driver is not signed.
Which of the following does NOT require a device driver to be installed in the OS?
installing additional RAM
Which of the following is created by a device to get the CPU's attention when a device has input or output data that is ready to process?
interrupt
Which OS component performs the job of managing interrupt handlers and device drivers
kernel
Which component of an OS runs with the highest priority?
kernel
You are testing out a new multitasking operating system. In your testing, you find that some applications are not getting sufficient CPU time while other applications are getting more than enough CPU time. Which component is responsible for determining how much CPU time each application gets
kernel
Which of the following is NOT a task performed by the computer's BIOS
manages random access memory
A user is running a word processor, a spreadsheet program, a web browser, and listening to music on their computer. The user tries to open a video file and the computer displays a message indicating that there is not enough RAM to load the file. The user closes the web browser and then successfully opens the video file. Which component of an OS prevented the user from opening the file and then allowed the user to open the file?
memory and I/O management
A CPU that has two or more components that read and execute instructions is referred to as which of the following?
multicore processor
Your colleague who is a programmer has written an application that must be able to monitor several sensors while performing calculations on the data read from the sensors. Both parts of the application must run simultaneously. What CPU and OS feature is required to properly run his application?
multithreading
What type of software is developed by volunteers, contains code in the public domain, and helped to make Linux popular?
open source
What operating system feature enables the OS to automatically detect newly installed hardware?
plug and play
Which CPU operating mode allows a process to execute restricted CPU instructions and access all memory locations?
privileged mode
Which feature of modern CPUs help prevent user applications from accessing memory used by the operating system or other processes?
privileged mode
On a cooperative multitasking system, two processes are loaded in memory and process 1 is running. What must occur before process 2 can run?
process 1 must relinquish control of the CPU
When a user clicks the X in a window to close an application, which OS feature is invoked?
process and service management
A CPU has just been powered on and it stores an address into one of its registers. Where did the CPU store the address
program counter
You want to terminate a process on a Linux computer using the kill PID command where PID is the process ID and you don't know the process ID. Which command do you need to run first?
ps
Which OS feature prevents accidental unauthorized access to memory by a program
security and resource protection
A computer has an operating system installed that is running a directory service and is configured to run without a GUI. What type of OS is most likely installed on the computer
server
Which of the following is a program that runs in the background and does not have a user interface?
service
You are listening to music on an old smartphone and you switch to the web browser app which causes your music to stop playing. What type of OS is most likely installed on the smartphone?
single-tasking
A user, Tim, is sitting at a Windows 10 client computer running an application when he sees a message that another user is trying to access the computer remotely using RDP. The other user cannot access the computer until Tim signs out of Windows. What type of OS is the computer most likely running
single-user
A user typed the name of a program at the command-line and pressed Enter. A user interface appeared on the screen. What function did the OS perform
started a process
A user has created a new folder on their computer to store financial documents. Which OS feature allows the user to create folders and store files on the hard disk.
storage management
Which of the following was a major change in macOS that first occurred with Snow Leopard?
support for only Intel-based processor
Which of the following is a feature first introduced in Windows 95
the Start button
What happens on a computer that runs a cooperative multitasking OS if a process runs in an infinite loop
the system becomes unresponsive
A software developer needs to design an application in which multiple parts of the application can be scheduled and executed simultaneously. What is each part of an application that can be independently scheduled called
thread
On a preemptive multitasking system, what event can occur to preempt a running process and allow a new process to get control of the CPU?
time slice expiration
What is the primary goal of the Kerberos protocol?
to prevent unauthorized users from accessing resources
Which feature of an OS provides a method for users to interact with the computer?
user interface