Operating systems (9) Flashcards
You have a MacBook Pro and need to run a critical application for work that is compatible only with Windows. Is there any way you can do this?
Yes. Macs will run Windows applications natively.
Yes. Use Boot Camp to install Windows and dual-boot.
Yes. Use Dock to install Windows and dual-boot.
Yes. Use Boot Camp to install Windows and dual-boot.
As great as MacOS is, there are times when you need Windows—for compatibility purposes with apps, legacy data, and many others. Because of this, you can use Boot Camp to install Windows on a Mac computer and then choose between operating systems as you boot. The Mac computer must be Intel-based, you need to have a 64-bit version of Windows, and you need a minimum of 30 GB of free disk space for it to work
On a Linux workstation, which command do you use to display the contents of a directory?
grep
cp
ls
Is
The ls (list) command is used in Linux to show the contents of a directory
You are configuring your tablet computer to connect to your corporate email server. Which ports do you need to set up if you want to use SMTP with SSL and IMAP4 with SSL?
25 and 143
465 and 993
465 and 995
465 and 993
SMTP uses port 25, and IMAP4 uses port 143. However, when they run over SSL, SMTP uses port 465, and IMAP4 uses port 993. SMTP over TLS uses port 587, and POP3 over SSL or TLS uses port 995
Which command is used to change a file’s permissions in Linux?
chperm
chown
chmod
chmod
The chmod (change mode) command is used in Linux to change file permissions
What type of update does your mobile phone need if you need to refresh the reference list the phone uses to connect to the proper cell phone tower when roaming?
PRL
PRI
Baseband
PRL
The Preferred Roaming List (PRL) is the reference guide the phone uses to connect to the proper cell phone tower when roaming. Product Release Instruction (PRI) contains settings for configuration items on the device that are specific to the network that it’s on. Both PRI updates and PRL updates normally happen when the primary OS on the phone is updated, but your carrier may let you update them manually
Your network uses a Linux file server. It has four volumes, each formatted with ext4. You want to check the /ops/files volume for any filesystem errors and fix them. Which command should you use?
fsck /ops/files
du /ops/files
df /ops/files
fsck /ops/files
The fsck (file system check) command is used to examine volumes for errors as well as attempt to fix them. The command is analogous to the chkdsk command for Windows-based computers. Be sure that the volume is unmounted before using fsck, to avoid corrupting data
A network consultant recommended to your boss that you install an IPS. Which of the following statements best describes what an IPS does?
It detects anomalies in network traffic, logs the activity, and takes actions to stop the activity.
It detects viruses transmitted across the network, logs the activity, and deletes the network packets infected with the virus.
It detects anomalies in network traffic, logs the activity, and sends an alert to the administrator.
It detects anomalies in network traffic, logs the activity, and takes actions to stop the activity.
An intrusion prevention system (IPS) is an active device. It monitors network traffic, and when it detects an anomaly, it can take actions to attempt to stop the attack. For example, if it senses suspicious inbound traffic on a specific IP port, it can shut the port down, block the sender, or reset the TCP connection
Which mobile operating system has versions named for types of candy or sweets?
BlackBerry OS
Android
iOS
Android
Android started off as its own company and was purchased by Google in 2005. Like Google’s Chrome OS, Android is Linux-based. It’s primarily installed on smartphones, but it is also found on specialized television, automobile, and wristwatch devices. Versions of Android are named after candy, such as Ice Cream Sandwich, Jelly Bean, KitKat, and Lollipop
One of the designers on your network has an iMac running OS X El Capitan. Which of the following is not considered necessary with this workstation?
Installing antivirus software
Updating drivers and firmware
Defragmenting the hard drive
Defragmenting the hard drive
Macs use the HFS+ file system, which Apple states does not require defragmentation as FAT or NTFS do. Therefore, disk defragmentation is not generally necessary. Regardless of the operating system, you should always back up data (unless you don’t mind losing it), install and update antivirus software, and keep drivers and firmware current
hich type of server on your network could have its functionality replaced with NAS or a SAN?
Mail server
File server
Print server
File server
File servers provide a central repository for users to store, manage, and access files on the network. Networks can also use network attached storage (NAS) devices, which are stand-alone units that contain hard drives, come with their own file management software, and connect directly to the network. If a company has extravagant data storage needs, it can implement a storage area network (SAN). A SAN is basically a network segment, or collection of servers, that exists solely to store and manage data
You have a MacBook Pro and want to share files with a small group of Mac users. Because your team edits the files frequently, you want to make sure everyone has access to the same version of the files online. What storage solution should you use?
iCloud
Finder
Remote Disc
iCloud
One of the best ways always to have the latest version of files, regardless of the device that you are using to access them, is to have them stored/accessed remotely. iCloud is Apple’s answer to remote storage, and you can configure your Apple devices to place files there automatically or use it for backup
The Linux workstation you are using seems slow. You want to see what processes are running on the computer. Which command should you use?
cp
dd
ps
ps
The ps (process status) command in Linux is used to show currently running processes
You are working on an iMac, and about a dozen applications are open. Which feature allows you to easily see all of them and switch to your desired application?
Spotlight
Mission Control
Finder
Mission Control
On a Mac, it’s possible to run a large number of things at one time, whether those things in question are apps or Windows Desktops. Apple’s Mission Control is an easy way to see what is open and switch between applications. To access Mission Control, you can press the Mission Control key on an Apple keyboard, click the Mission Control icon in Dock (or Launchpad), or swipe up with three or four fingers on a trackpad
You are configuring your Android phone to synchronize with your Windows 8.1 workstation. Which of the following types of data will not be synchronized between the devices?
Passwords
Bookmarks
Passwords
Passwords are not synchronized between devices. Types of data that are synchronized include contacts, programs, email, pictures, music, videos, calendar, bookmarks, documents, location data, social media data, and e-books
Your manager asked you to find a device for network security. He wants it to be able to perform packet filtering, shut down network attacks, block spam, and prohibit access to inappropriate websites. What type of device should you look for?
IPS
IDS
UTM
UTM
The goal of unified threat management (UTM) is to centralize security management, allowing administrators to manage all of their security-related hardware and software through a single device or interface. A UTM device can generally provide the following types of services: packet filtering and inspection, intrusion protection service, gateway anti-malware, spam blocking, malicious website blocking, and application control
