CompTIA A+ Core 1 Practice Questions Review

These flashcards cover key concepts for the CompTIA A+ Core 1 exam, focusing on networking, cloud computing, device management, and troubleshooting basics.

What does CompTIA A+ Core 1 exam help with?

It prepares for 220-1101, 1102, and helps with foundational IT skills.

What is a key requirement to troubleshoot network cable issues?

Traceroute tools can help determine cable paths.

What is the purpose of a cable tester?

To check if a cable is working and crimped correctly.

What device is used to identify a specific network cable?

A toner probe or tone generator.

Which tool is used to attach a network connector to a cable?

A crimper.

What does T568A wiring configuration designate?

A wiring standard for Ethernet cables.

What is the maximum RAM limit for a 32-bit operating system?

4 GB.

Which RAID configuration requires at least three hard drives?

RAID 5.

What type of connector did older telephone lines use?

RJ11.

Which port number should be blocked to disable SFTP connections?

Port 22.

What should be done first when replacing RAM in a desktop PC?

Unplug the PC from the wall socket.

What component is most affected when a graphics card is stored improperly?

ESD could damage it if not stored in an anti-static bag.

What channels should be used to minimize interference in wireless networks?

Channels 1, 6, and 11.

What is the function of a network switch?

To connect multiple devices within a Local Area Network (LAN).

Which type of cable is best suited for high fire risk areas?

Plenum rated cables.

What kind of memory is volatile?

RAM.

What type of printer uses a ribbon to print?

Impact printer.

Which network type is formed when connecting a smartphone to a laptop directly?

Personal Area Network (PAN).

What is a DHCP's function in a network?

To assign dynamic IP addresses to devices.

What will enable a network printer to retain the same IP address?

Reserve the printer's IP address on the DHCP.

What is the significance of an IP address starting with 169.254?

It indicates the device is using APIPA and has no valid IP address.

What is a common symptom of a failing CMOS battery?

Incorrect date and time settings.

What tool is used primarily to measure voltage, current, and resistance?

A multimeter.

What component can still function if the power supply is faulty?

Printer, but it won't operate without power.

What action will a user take if their network connection fails after using a DHCP?

Reconfigure IP settings if necessary.

What defines Quality of Service (QoS) in networking?

Prioritizing certain traffic over others for efficiency.

What does a post error that beeps indicate?

A hardware component issue preventing boot.

Which device transmits electrical signals along its cables?

A network cable.

What is the purpose of fabricating a network?

To ensure proper resource masking and pooling.

Where would your cloud components reside in an IaaS solution?

On the cloud provider's infrastructure.

What is true about public IP addresses?

They are routable across the internet.

What could cause an IP address to change in a network?

DHCP lease expiration.

What should be avoided for security when configuring cloud services?

Using insecure protocols for data transfer.

What are the three key benefits of cloud computing?

Scalability, flexibility, and cost-effectiveness.

Which protocol typically uses port 53?

DNS (Domain Name System).

What happens when a DHCP server runs out of IP addresses?

Devices won't connect to the network due to lack of IP address.

What is the first step in the troubleshooting process?

Identify the issue.

What does PoE stand for in networking?

Power Over Ethernet.

What is the role of a firewall in networking?

To control incoming and outgoing network traffic.

Which type of cable is immune to electromagnetic interference?

Fiber optic cable.

Which command can help fix incorrect DNS resolution issues?

ipconfig /flushdns.

What is the maximum transfer rate for a standard Cat 5 cable?

100 Mbps.

What is the maximum transfer rate for a standard Cat 6 cable?

1 Gbps.

What should you do if the printer output is blurry or smudged?

Check if the toner level is low or if there's a dirty drum.

What should you check if there are network connectivity issues affecting multiple computers?

Network hardware and configuration.

Which of the following could potentially lead to IP address conflicts?

Manually assigning static IP addresses without proper planning.

What might a beep code indicate during startup?

A hardware failure or configuration issue.

Which type of memory retains data without power?

Non-volatile memory.

What is the function of an uninterruptible power supply (UPS)?

To provide backup power during outages.

How does metered billing work in cloud services?

Users pay only for the resources they use.

What is the purpose of installing a patch panel in networking?

To manage and organize network cables efficiently.

What determines a private IP address range?

Defined by specific ranges set by the IETF.

What type of network would you use in a large enterprise environment?

Wide Area Network (WAN).

Where can you typically configure network settings for a printer?

In the printer's web interface or from the control panel.

Which cloud model shares resources among multiple tenants?

Public cloud.

What is required for a device to connect to a WLAN?

A wireless network adapter.

Which device typically acts as the bridge between a local network and the internet?

Router.

What is the most common way to connect devices within a LAN?

Ethernet cables.

What issues might arise if a patch panel is not labeled?

Difficulties in troubleshooting and identifying connections.