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CompTIA 220-1101 - CompTIA A+ Certification Exam: Core 1

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Total 854 questions

An online retailer wants to save money and is considering migrating to the public cloud so peak is over. Which of the following BEST describes this aspect of cloud computing?

A.

Rapid elasticity

B.

Metered utilization

C.

Shared resources

D.

High availability

Which of the following technologies can allow multiple networks to traverse a switch?

A.

VLAN

B.

VRRP

C.

VPN

D.

DHCP

While implementing a non-carrier-grade wireless backhaul, a technician notices the current channel selection is extremely polluted with various RF signals. Upon performing a spectral analysis, the technician discovers a channel containing almost no RF pollution. Unfortunately, the technician is unable to select that channel. Which of the following is the MOST likely reason for this issue?

A.

The channel is reserved for licensed band use.

B.

The channel selection is defective; contact the manufacturer.

C.

The channel must be unlocked by the vendor.

D.

The device requires a firmware update to unlock the channel.

Which of the following describes the operational difference between hubs and switches when transmitting data to a specific computer inside the network?

A.

Switches only send data to the specific computer, while hubs send data to all computers inside the network.

B.

Switches compress data while hubs send uncompressed data

C.

Switches receive data and route it to all computers inside the network while hubs receive data and do not route

D.

Switches scramble data, while hubs send data in the original form.

A technician receives several error alerts on a server after an unexpected reboot. A message states that one or more disks are in a degraded state. When the technician advances to the next error message, it indicates the OS is missing. Which of the following are the MOST likely causes of these errors? (Choose two.)

A.

Missing drives in the OS

B.

RAID failure

C.

Bootable device not found

D.

Data loss

E.

Controller failure

F.

CMOS corruption

G.

TPM malfunction

A technician is commissioning a workstation that is required to have mirrored storage, utilizing two 4TB drives that support one failure. Which of the following BEST meets these requirements?

A.

RAID 0

B.

RAID 1

C.

RAID 5

D.

RAID 10

Which of the following DNS records would an administrator change to redirect email flow?

A.

MX

B.

TXT

C.

SPF

D.

CNAME

A user regularly travels to multiple sites to take pictures with a mobile device and transfers those pictures to a computer via a removable SD card. Recently, the SD card was damaged and

had to be replaced. Now, the user is unable to save pictures to the new SD card. Which of the following should the user verify first so pictures can be saved to the SD card?

A.

The card is correctly formatted.

B.

The card is a storage device.

C.

The card is not locked.

D.

The card is initialized.

Which of the following best characterizes the use of a virtual machine as a sandbox?

A.

Run an application on multiple workstations without installation.

B.

Explore how an application behaves in a different environment

C.

Migrate a currently used legacy application from physical to virtual

D.

Create a firewall where the sandbox acts as a perimeter network.

Which of the following is used primarily for archiving data?

A.

PAN

B.

MAN

C.

SAN

D.

LAN

E.

WAN

While reviewing options in the BIOS/UEFI settings page to fix a laptop issue, a support technician notices an option to clear existing TPM keys. Which of the following would most likely happen if the TPM is cleared?

A.

Encrypted hard drives would probably not be accessible.

B.

All security certificates would need to be reinstalled from trusted roots.

C.

The device would need to be reenrolled in the MDM platform

D.

The laptop would need to be registered to the domain as a new client.

A technician is working on a RAID 1 array that is apparently degraded. The technician verifies the RAM and power are both operating as expected. Which of the following can the technician do to further isolate the issue?

A.

Perform individual drive diagnostics.

B.

Run the chkdsk /i command.

C.

Rebuild the RAID array.

D.

Reconfigure the array as RAID 0.

A user is unable to hear sound from a laptop. However, the user can hear sound when connected to a Bluetooth headset. Which of the following actions would most likely resolve the issue?

A.

Updating the Bluetooth drivers

B.

Toggling the laptop's mute setting

C.

Updating the speaker drivers

D.

Replacing the laptop's speakers

Which of the following scenarios best illustrate a need for VDI? (Select two).

A.

An employee needs the ability to work remotely on a non-company-provided computer

B.

A company that needs to store 10PB worth of data

C.

An employee has latency-sensitive workflow requirements

D.

A bank that has security concerns regarding employee activity

E.

A payment processor that is planning on implementing virtual currency

F.

An application developer who needs to configure network settings for an application

A technician receives a PC that frequently shuts down and has extremely loud fans. When the technician begins a stress test, the PC shuts down almost immediately. Which of the following should the technician do next?

A.

Install a liquid cooling unit in the computer.

B.

Monitor the core CPU and system temperatures.

C.

Reapply thermal paste to the processor heat sink.

D.

Clean and test all fans to ensure proper airflow.

A technician is troubleshooting issues occurring on a user's mobile device. Applications and the OS have slow response times, even when performing simple tasks, such as writing an email. Additionally, new applications occasionally fail to launch. Which of the following should the technician do next?

A.

Move the device to a room with a colder temperature.

B.

Close unnecessary programs.

C.

Reset to factory default settings.

D.

Check the battery health of the device.

A technician is upgrading memory on a laptop that is experiencing performance issues. Which of the following RAM types should most likely be specified for installation?

A.

ECCDIMMDDR5

B.

High latency DDR5

C.

Registered DIMM DDR5

D.

SODIMM DDR5

Which of the following involves installing an application on a server so several users can run the application concurrently without the need for local installation?

A.

Client virtualization

B.

Software as a service

C.

Sandboxing

D.

Embedded software

Which of the following is an email authentication method designed to detect email spoofing by attaching a digital signature to outgoing email?

A.

SPF

B.

DKIM

C.

DNS pointer

D.

MX records

A customer reports that the output from their thermal receipt printer has vertical white lines. Which of the following would most likely resolve this issue?

A.

Replacing the ink cartridge

B.

Using the correct paper type

C.

Installing a maintenance kit

D.

Cleaning the heating element