Comptia 220-1101 A+ Core 1 Exam

You are troubleshooting a computer that won't display any output on the screen. First, you powered the computer off and on again, noting that the fans were spinning, but there was still no display output. You confirmed that the monitor and video cable were working by testing them with another computer. Next, you re-seated the PCIe x16 video card and tried a different video card, but the issue persisted. You checked all power connections inside the case to ensure they were secure. Finally, you tested the computer with minimal components (motherboard, processor, one stick of RAM, and power supply), but there was still no display and no POST beep codes. Given the steps taken, what is the MOST likely cause of the issue?

The power supply wattage is too low for the components in the computer

A computer technician is building a server that will run multiple virtual machines simultaneously. Which CPU technology should be selected so that the processor can utilize two logical cores?

Hyperthreading

Which of the following is an open-source wireless communication protocol operating in the 2.4 GHz frequency band and is primarily used for home automation?

Zigbee

Which of the following is a security concern with using a cloud service provider and could result in a data breach caused by data remnants?

Rapid elasticity

You work as a computer technician for a production company that travels worldwide while filming and editing music videos. Due to the nature of video editing, you will be building a video production workstation for the company that will have the maximum amount of RAM, an 8-core CPU, a dedicated GPU, and a redundant array of solid-state devices for storage. You are now determining which power supply to install in the system. What is the MOST important characteristic to consider when choosing a power supply?

Input voltage

Which of the following types of USB connections can support up to 4.5 watts of power per connected device?

USB 3.0

What type of connector provides power to an internal hard drive from the computer's power supply using a 4-pin connector?

Molex

You have been asked to fix an old computer whose CD-ROM has stopped working. The CD-ROM drive is using a 40-pin ribbon cable, and you suspect the cable is defective. Which cable should you buy to replace the cable?

IDE

Dion Training wants to install a network cable to run a television signal between two buildings. Which of the following cable types should it utilize?

Coaxial

Which of the following types of USB connections can support data rates of up to 480 Mbps?

USB 2.0

Dion Training has recently purchased a new wireless printer and has asked you to configure it in their office. You have installed the necessary printer drivers on your workstation and have plugged the printer into the power outlet. You just configured the printer to connect to the guest wireless network. Next, you try to print a test page, but nothing prints out. Which of the following is the most likely cause for the printer not printing the test page?

You connected the printer to the guest wireless network instead of the corporate wireless network

You just heard of a new ransomware attack that has been rapidly spreading across the internet that takes advantage of a vulnerability in the Windows SMB protocol. To protect your network until Microsoft releases a security update, you want to block the port for SMB at your firewall to prevent becoming a victim of this attack. Which of the following ports should you add to your blocklist?

445

Which of the following ports is used by SNMP by default?

161

Which of the following DC voltages are not found within a printer when the laser printer converts AC power into DC power for use?

-24 VDC

Which of the following ports is used by the Service Location Protocol when organizing and locating printers, databases, and other resources in a network?

427

Which of the following virtualization concepts refers to a VM's ability to have memory allocated for its use?

Resource pooling

Which of the following ports is used by LDAP by default?

389

You have decided that you wanted to install a second operating system on your computer. After installing the OS and rebooting the computer, you see the "Operating System Not Found" error on your display. You verify that the boot.ini file is configured properly, but the error still appears. What is MOST likely causing this error?

An incompatible partition is marked as active

You are building a virtualization environment to host several secured Linux distributions as VMs. The VMs need to have access to the local corporate network and communicate with the host operating system, the other VMs, and the internal network clients. Still, they should not have access to the internet. Which of the following types of network connections should you configure for each VM?

Internal

You are configuring a new client workstation on the network. Which type of IP address should you configure it with?

Dynamic

Johnny is trying to download a file from a remote FTP server but keeps receiving an error that a connection cannot be opened. Which of the following should you do FIRST to resolve the problem?

Ensure that port 20 is open

What is the simplest and most cost-efficient way to allow other network users to access a printer if the printer does not have an RJ-45 or WiFi adapter available?

Establish a print share on the local host

While troubleshooting a switch at the Dion Training offices, you believe that one of the ports on a switch is defective. To prove your hypothesis, which of the following tools should you use?

Loopback plug

Which of the following ports are used by the NetBIOS protocol to share files and printers on a Windows network? (Select ANY that apply)

139

Which of the following network configurations on a virtual machine are used to prevent the VM from accessing the internet, but still allow it to communicate with other VMs on the host and the host itself?

Internal

An employee's workstation will operate for a short period of time, but then it unexpectedly shuts down. When you check the workstation, you hear the hum of the cooling fans. What is most likely the issue?

CPU overheated

A customer is trying to configure an 802.11b wireless card in an old laptop to connect to an 802.11g wireless router. When the customer scans for the wireless network's SSID (Dion-Corp), it is not displayed within Windows. What is the MOST likely reason that the SSID is not being displayed?

The broadcast is disabled on the wireless router

What ports do FTP and SFTP utilize?

21, 22

Which of the following protocols operates over port 3389 by default?

RDP

Which of the following components of a color laser printer is used to combine the 4 colors before printing them to the paper in one pass?

Transfer belt

Your company has decided to upgrade its legacy phone system to use VoIP devices instead. The new phones will download the configurations from a server each time they boot up. Which of the following ports needs to be opened on the firewall to ensure the phones can communicate with the TFTP server and download their boot-up configurations?

69

Dion Training just installed a file server in VLAN 101 and their user workstations in VLAN 102. The users are unable to access the new file server from their workstations. Which of the following devices needs to be installed to allow users in VLAN 102 to access the resources in VLAN 101?

Router

Which of the following ports is used for the request and distribution of DHCP configuration information?

67

Which of the following types of optical discs can only support storing up to 700 MB on a single piece of media?

CD-RW

Which of the following is used when a CDMA smartphone attempts to connect to the cellular network while traveling?

PRI and PRL

Which of the following network standards allows a networking device to provide up to 15.4W of power to a connected device?

802.3af

Which of the following describes the IP address of a router to which packets destined for a remote network should be sent by default?

Gateway

Which of the following ports should you block at the firewall if you want to prevent a remote login to a server from occurring?

22

Jason's new iPhone has locked up, and the touchscreen is unresponsive. He tries to tap the screen, press the buttons, and still, nothing happens. What should he do next?

Hold down power and volume down buttons simultaneously for 10 seconds until it turns off.

Which of the following cellular technologies was not widely used outside of the United States?

CDMA

What type of expansion bus technology uses lanes with point-to-point communication paths between two components on the motherboard?

PCIe

Which of the following types of networking hardware is used to create network infrastructures within the cloud?

Software-defined networking