A+ CORE 2 FINAL REVIEW QUIZ

You're at a favorite coffee shop using their Wi-Fi, when suddenly you notice that your mouse is moving, and you aren't moving it. You knew using this unsecured Wi-Fi was a bad idea, and now you've been hacked and want to stop the attacker as soon as possible, but you need time to save your files. What is the best course of action?

• Turn on Airplane mode

• Unhook the network cable

• Close the lid on the laptop

• Turn the laptop's power off

Answer explanation

The quickest way to thwart this would-be attacker is to turn on Airplane mode. This disconnects all of your wireless connections and is usually done by pressing a key or two, such as the Fn key and whichever F key has a picture of an airplane on it. There is no network cable to disconnect if you are on Wi-Fi, and what closing the lid does depends on how the computer is configured. It may do nothing. If you turn the laptop's power off, you will lose whatever you have been working on.

You are on-site fixing a client's laptop that will not load the OS. You are waiting to hear about your friend's awesome party that they are hosting this weekend, and your phone starts to vibrate. And it keeps vibrating. You're sure that all your friends are texting information about the party. What should you do? (Choose two.)

• Turn your phone off and apologize to the client. Tell them that the phone was distracting you from your job, but it won't be a problem now.

• Ignore your phone.

• Text your friends back and tell them that you are working.

• Call your friend and tell them to wait until after this job before planning all the details because you want to help.

• Answer the texts while you are waiting for the OS to load - this could take a while.

Answer explanation

When working with customers, it's important to avoid distractions such as personal phone calls, texting, or social media sites. Exceptions can be made if it's an emergency situation, but in those cases notify the client that you might get a call or text and explain that you will deal with it only if it's the emergency. Otherwise, ignore the personal interruption until you are not working with a client.

You are planning on formatting a hard drive with NTFS that will be used to share files between Windows 10 and Windows 11 Pro computers. Which of the following features are present in NTFS? (Choose two.)

• macOS support

• File compression

• File and folder encryption

• Enhanced flash drive support

• Convert to FAT32 without losing data

Answer explanation

The New Technology File System (NTFS) is available with all current versions of Windows. NTFS is an advanced filesystem that includes such features as individual file security, compression, and RAID support as well as support for extremely large file and partition sizes and disk transaction monitoring. In Pro and higher editions of Windows, the Encrypting File System (EFS) is available to encrypt individual files and folders.

You are logged into a Linux workstation with a regular user account. You need to execute a command with root permissions. Which command do you need to use?

• su

• sudo

• grep

• man

Answer explanation

The sudo ("substitute user do" or "superuser do") command is used to run a command with a different privilege level than the current user logged in. Typically this means running a command with superuser or root permissions. The su command switches to a different user, again the default is root, but with sudo you need to enter sudo before each command. With su, you don't. Considering best practices, you would use sudo if you had one command to run and su if you had several. The grep command is used to search for patterns in a file, so if you can't remember the filename but know what is in it, you can still find it. The man command brings up a manual—for example, man grep would show you how to use the grep command.

A security consultant recommends that your secure facility implement biometrics as a form of building access control. Which of the following systems might they be referring to?

• RFID badges

• Key fobs

• Palmprint scanner

• Guards

Answer explanation

Biometric devices use physical characteristics to identify the user. Biometric systems include fingerprint/palm/hand scanners, retina scanners, and anything else that uses part of your body to identify you. To gain access to resources, you must pass a physical screening process. While it's true that guards are humans, they are not biometric devices. Radio frequency identification (RFID) badges have information on them that is read by an RFID scanner, and key fobs generate a new code every few seconds to allow access.

You are looking online to find pictures to use as part of promotional materials your company wants to make. Which of the following statements is true regarding online content?

• Online content is considered open source; therefore, you may use whatever you find

• Online content can be protected through the use of DRM

• Online content is protected through the use of the EULA

• Online content is protected through terms established by Microsoft

Answer explanation

Many companies rely on digital rights management (DRM) to protect digital assets such as online photos or videos. Unlike an end-user license agreement (EULA) that legally protects software and other objects, DRM will physically protect the information by not allowing copies to be made, printing a watermark on the face of an image or document, or similar measures to prevent use, modification, and distribution of materials that are copyrighted. DRM is not as established as licensing agreements are, but you should still respect the property of the owners of digital content.

In which type of security threat will someone try to gain access to a secure area without credentials by following someone else, who used their access rights, into the secured area?

• Brute force

• Shoulder surfing

• Evil twin

• Tailgating

Answer explanation

Tailgating refers to being so close to someone when they enter a building that you are able to come in right behind them without needing to use a key, a card, or any other security device. Using access control vestibules, which are devices such as small rooms that limit access to one or a few individuals, is a great way to stop tailgating. A brute-force attack attempts to repeatedly guess a password. Shoulder surfing is just like it sounds—someone looking over your shoulder to gain passwords and logins, and an evil twin is an unauthorized wireless access point that has the same SSID as a legitimate one.

A management directive requires that you keep hard copies of all your workstations' system configurations. You have all Windows workstations. Which command can you use to easily gather this information for remote workstations and save a report as a text file?

• msinfo32

• compmgmt

• mmc

• perfmon

Answer explanation

The msinfo32 tool displays a thorough list of settings on the machine. You cannot change any values from here, but you can search, export, and save reports. When run from a command prompt, the /computer option allows you to specify a remote computer on which to run the utility, and the /report option saves the report as a text file. Another option while in the GUI is clicking View ➢ Remote Computer to collect information related to the chosen PC. The compmgmt command opens the Computer Management console, mmc opens the Microsoft Management Console, and perfmon opens Performance Monitor.

You have a situation that requires installing Windows 11 from installation media. You'll be launching Setup on the media while you are on the existing Windows 10 desktop. Which of the following is not an option?

• Full Upgrade

• Keep Data Only

• Forensic Install

• Clean Install

Answer explanation

Forensic install is not an option. The easiest way to install Windows 11 on a Windows 10 computer is through Windows Update in the Settings app. If you have a situation where that's not possible, you can create Windows 11 installation media and use it to install the OS. When you launch the installation from within Windows 10, you have three options. The first is Full Upgrade, which will keep Windows settings, drivers, personal files, and apps. The second, Keep Data Only, will keep drivers and personal files but no installed apps or Windows Settings. The third option is a Clean Install, which will wipe out everything on the drive and install a fresh copy of Windows 11. If you boot a computer from the installation media, your only option is a clean install.

You are configuring a wireless router for a home office. Which of the following changes will have the least impact on improving the security of the network?

• Disabling guest access

• Disabling the SSID broadcast

• Configuring WPA3

• Changing the default username and password

Answer explanation

Even if you disable the Service Set Identifier (SSID) broadcast, potential attackers still have many simple tools available to see your wireless network traffic and get the SSID anyway. It is a weak form of security that will keep out only the most casual intruders. Disabling guest access limits who can connect to your network, but if you must have guest access, look for a setting that will isolate the guest network from your network. WPA3 is the best commonly available form of encryption for wireless routers. WPA2 is usually available alongside of WPA3 for networks that are transitioning between WPA2 and WPA3. The router may have an option that says WPA2/WPA3 or WPA3 transitional, which will allow newer devices to connect using WPA3 and older devices to connect using WPA2. Changing the default username and password is always recommended, because those are often easy to find online.