Chapter 20 - Hardware Support A+

12 September 2022
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question
The Android OS for mobile devices is based on Linux. True or False
answer
True
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VMs running under a Type 1 hypervisor are isolated from each other. True or False
answer
True
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On Linux, the root user's home directory is /home/root. True or False
answer
False
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Programs on Mac that launch at startup are called login items. True or False
answer
False
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LILO is the most commonly installed boot loader by the Linux operating system. True or False
answer
False
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What operating system is based on open source code? Android Blackberry Windows Phone iOS
answer
Android
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What type of virtualization should you deploy to provide a Virtual Desktop Infrastructure? server-side client-side fat-client type-2
answer
server-side
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What keypress sequence is used to open the Force Quit window on a Mac? ctrl+alt+delete command+option+delete ctrl+option+delete command+option+esc
answer
command+option+esc
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What statement regarding Type 1 hypervisors is accurate? -they are typically used on desktops and laptops -the VirtualBox software is an example -they are called bare-metal hypervisors -they install as an application
answer
they are called bare-metal hypervisors
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What command below is used to test network connections by sending a request packet to a host? ps ifconfig ping df
answer
ping
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A bootable Linux USB flash drive or CD that can be used to repair system issues is known by what term? live CD repair disk boot CD supplemental OS
answer
live CD
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What occurs when Linux encounters an error from which it cannot recover? BSOD page fault segmentation fault kernel panic
answer
kernel panic
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When using Mac OS X, what gesture can be used to show the Launchpad? secondary click pinch swipe slide
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swipe
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Swiping up with three fingers on Mac OS X launches what? Dashboard Mission Control Spotlight System Preferences
answer
Mission Control
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On Linux, where are the commands required for system administration stored? /bin /usr /opt /sbin
answer
/sbin
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What command can be used to copy and convert files, directories, partitions, and even entire DVDs or hard drives? copy cp dd cat
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dd
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What user account is known as the system administrator or super user account? root sysadmin admin super
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root
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What is the name of the OS X built-in backup utility? iBackup Time Machine Backup Utility Cloner
answer
Time Machine
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What is the main advantage of using a thick client? -reduced cost of the machine -can be used for purposes other than server-side virtualization -a tablet can serve as a thick client
answer
can be used for purposes other than server-side virtualization
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How much drive space should be available for each virtual machine on a system? 5 GB 10 GB 20 GB 50 GB
answer
20 GB
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What might be required to set up a virtual machine such that hardware is virtualized and presented to the VM, including such devices as a virtual processor, memory, motherboard, hard drive, optical drive, keyboard, mouse, monitor, and other components or peripherals? external motherboard PCI virtual expansion cards dummy system emulator
answer
emulator
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What Linux distribution is considered a cutting-edge distribution? Debian Fedora Red Hat Enterprise Linux Ubuntu
answer
Fedora
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What command lets you view the contents of a file? cat view open rm
answer
cat
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If you need to redirect the output from a command, what symbol should you use? | * > ?
answer
>
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In order to break out of a command or process on a terminal, what keys should you press? ctrl+alt+del ctrl+space alt+del ctrl+c
answer
ctrl+c
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What is a typical use of a Type 2 hypervisor? (Choose all that apply.) -by developers to test applications -as honeypots to lure hackers -for VDI deployment -cloud computing
answer
by developers to test applications as honeypots to lure hackers
question
What two commands are used to change the permissions and ownership of a file or directory in Linux? chmod cacls usermod chown
answer
chmod chown
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In order to ensure that a Mac has no startup items, what two directories should you check for items? /etc /Library/StartupItems ~/.startup /System/Library/StartupItems
answer
/Library/StartupItems /System/Library/StartupItems
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Linux utilizes what two different wildcard characters at the command line? and | * ?
answer
* ?
question
What terms are used to describe a machine that does not have an operating system and merely provides an interface between the user and the server? (Choose all that apply.) thick client zero client dumb terminal ultra-thin client
answer
zero client dumb terminal ultra-thin client