CompTIA A+ (#4)

What is the most common use for the switch on a computer’s power supply?

• A. Sets the input voltage
• B. Controls the speed of the CPU
• C. Sets the cooling fan speed
• D. Boots from different operating system partitions

Which of these devices would be used to configure an 802.1Q trunk?

• A. Router
• B. Repeater
• C. Managed switch
• D. Cable modem

A user in the manufacturing department would like to synchronize their cloud-based Outlook emails and calendar to their iPhone. Which of the following would be the BEST method of managing this data?

• A. Download the email data from iCloud
• B. Add the user's Microsoft 365 account to the iPhone
• C. Download email information from the iPhone browser
• D. Connect the phone to the user's laptop with USB

A network administrator needs to connect an Ethernet link between two buildings located across the parking lot from each other. The total distance between the buildings is approximately 400 meters. Which of the following technologies would be the BEST choice for this installation?

• A. Coax
• B. Category 6A
• C. Fiber
• D. UTP

A systems administrator needs to configure a smartphone to retrieve email messages from the corporate mail server. Which of the following protocols could be configured for this purpose? (Pick TWO)

• A. IMAP
• E. POP3
• B. SSH
• C. SMTP
• D. LDAP

An administrator would like to ensure the company's mobile devices are connecting to the appropriate towers. Which of the following provides a smartphone with this information?

• A. IP address
• B. PRL
• C. Phone number
• D. IMEI

Which of these cloud computing architectures would BEST describe several organizations sharing the same resources?

• A. Community
• B. IaaS
• C. Public
• D. Hybrid

What port should be configured in a firewall to block secure terminal communication?

• A. 23
• B. 443
• C. 22
• D. 110

The cooling fan controller in a server is failing. The server administrator has tested possible reasons for the failures and has created a plan for correcting the issue. Which of the following would be the best NEXT troubleshooting step?

• A. Verify the fan controller is working properly
• B. List possible reasons for the controller failure
• C. Present the plan to the change control team
• D. Test for full functionality

A desktop administrator is troubleshooting an LCD display that shows a faint image at the bottom right of the screen. The faint image is displayed even when spreadsheets or browser screens are shown. Which of the following would be the MOST likely reason for this issue?

• A. Dead pixels
• B. Incorrect resolution
• C. Bad video cable
• D. Burn-in