CompTIA A+ Security

A user's mobile phone has become sluggish. A systems administrator discovered several malicious applications on the device and reset the phone. The administrator installed MDM software. Which of the following should be administrator do to help secure the device against this threat in the future? (Select TWO)

• Prevent a device root

• Disable biometric authentication

• Require a PIN on the unlock screen

• Enable developer mode

• Block a third-party application installation

A company wants to remove information from past users' hard drives in order to reuse the hard drives. With of the following is the MOST secure method

• Reinstalling Windows

• Performing a quick format

• Using disk-wiping software

• Deleting all files from command-line interface

A technician is configuring a SOHO device Company policy dictates that static IP addresses cannot be used. The company wants the server to maintain the same IP address at all times. Which of the following should the technician use?

• DHCP Reservation

• Port forwarding

• DNS A record

• NAT

Following the latest Windows update PDF files are opening in Microsoft Edge instead of Adobe Reader. Which of the following utilities should be used to ensure all PDF files open in Adobe reader?

• Network and Sharing Center

• Programs and Features

• Default Apps

• Add or Remove Programs

Whick of the following provie the BEST way to secure physical access to a data center server room? (Select TWO)

• Biometric lock

• Badge reader

• USB token

• Video surveillance

• Locking rack

During a recent flight an executive unexpectedly received several dog and cat pictures while trying to watch a movie via in-flight WiFi on an iPhone. The executive has no records of any contacts sending pictures like thses and has not seen these pictures before. To BEST resolve this issue, the executive should:

• set AirDrop so that transfers are only accepted from known contacts

• completely disable all wireless systems during the flight

• discontinue using iMessage and only use secure communication applications

• only allow messges and calls from saved contacts

A user reports that antivirus software indicates a computer is infected with viruses. The user thinks this happened while browsing the internet. The technician does not recognize the interface with which the antivirus message is presented. Which of the following is the NEXT step the technician should take?

• Shut down the infected computer and swap it with another computer

• Investiage what the interface is and what triggered it to pop up

• Proceed with initiating a full scan and removal of the viruses using the presented interface

• Call the phone number displayed in the interface of the antivirus removal tool

The command cat comptia.txt was issue on a Linux terminal. Which of the following results should be expected?

• The contents of the file comptia.txt will be replaced with a new blank document

• The contents of the file comptia.txt would be displayed

• The contents of the file comptia.txt would be categorized in alphabetical order

• The contents of the file comptia.txt would be copied to another comptia.txt file

A user's smartphone data usage is well above average. The user suspects an installed application is transmitting data in the background. The user would like to be alerted when an application attempts to communicate with the internet. Which of the following BEST addresses the user's concern?

• Operating system updates

• Remote wipe

• Antivirus

• Firewall

A technician is unable to join a Windows 10 laptop to a domain. Which of the following is the MOST likely reason?

• The domain's processor compatibility is not met

• The laptop has Windows 10 Home installed

• The laptop does not have an onboard Ethernet adapter

• The laptop does not have all current Windows updates installed