220-1001 TO 09302020

A SOHO customer finds that their VoIP conversations frequently break up and become unintelligible. This

happens most often when one person in the office streams video from the internet. Which of the following configuration changes on the SOHO router is MOST likely to improve VoIP performance?

• Create a DMZ and add the VoIP phone to it.

• Change QoS settings to give VoIP traffic more priority.

• Change DHCP to give the VoIP phone a static IP address.

• Forward UDP ports 5060 to 5065 to the VoIP phone.

A company is considering providing smartphones to their employees and is investigating the interaction of the

phones with iTunes, iCloud, Google Drive, Dropbox, and OneDrive. Which of the following data synchronization methods is being considered?

• Synchronization connection types

• Synchronization to the cloud

• Mutual authentication for multiple services

• Synchronization to the desktop

Which component is most likely to allow physical and virtual machines to communicate with each other?

• Host operating system

• Virtual desktop

• VHD

• Virtual switch

A user is configuring an email client application and decides to use the TCP/IP suite protocol that will store all messages on the email server so that they can be synchronized across a laptop, a smartphone, and a web email client. This protocol will store the email messages on the email server until the user explicitly deletes them. Which of the following TCP/IP port numbers will the client application typically use while using this protocol to contact the email server?

• 21

• 80

• 143

• 110

• 25

You work at a computer repair store. You just upgraded the processor (CPU) in a customer's computer. The computer starts, but it shuts down shortly after starting Windows. Which of the following is MOST likely causing the computer to automatically shut down?

• The computer has a virus.

• The CPU is not supported by the BIOS.

• The CPU is bad.

• The fan has no power.

You have a desktop computer that uses a 250-watt power supply. You recently added a four-disk RAID 10 array to the system, and now it spontaneously shuts down. Which of the following would MOST likely rectify this issue?

• Upgrade to a power supply that provides more watts.

• Upgrade to a power supply that provides more volts.

• Upgrade to smaller capacity hard drives.

• Use the switch on the power supply to switch from 115 VAC to 230 VAC.

Which type of printer uses an inked ribbon?

• Ink jet

• Dye sublimation

• Laser

• Dot matrix

While setting up a home office, a technician disables the DHCP service on the office router, but does not want to

rely on link-local addressing. Which of the following IP addressing methods should be used?

• Dynamic

• APIPA

• Alternate

• Static

You have just finished replacing the motherboard in your friend Ethan's computer with the same type of motherboard it originally had. You tested the motherboard by powering it on and verifying that the operating system started, and his applications were working. Now Ethan is complaining that his computer no longer recognizes his external hard drive. Which of the following is MOST likely causing the external hard drive not to function?

• The USB front panel connector was not properly connected.

• The computer's power supply was not connected properly.

• The replacement motherboard does not support external hard drives.

• Ethan's hard drive has failed.

Zoey has brought her computer in for servicing. When she dropped off her computer, she mentioned that her computer will sometimes spontaneously reboot and freezes occasionally. Which of the following is the MOST likely cause of this problem?

• Overheated CPU

• Failed UPS

• Bad network card

• Failing drive