CompTIA 220-1101 Practice Test - Questions Answers, Page 70

Since the issue of the network connection dropping has been replicated on a known-good workstation using the same network cable, it suggests that the problem may not be with the individual workstations or the cable. The next logical step is to check for external interference, such as electrical or wireless interference that could be disrupting the network connection.

C . Validate the environment for external interference: External factors, such as nearby electronic devices or poor cabling, can cause intermittent network drops. Checking for interference would be a prudent next step.

Why the other options are incorrect:

A . Add new network hardware to reduce congestion: There's no evidence that network congestion is the issue, and adding new hardware without identifying the cause is premature.

B . Assign a static IP to the impacted workstations: The issue appears to be related to the physical network connection or environment, not IP addressing.

D . Check the network logs for evidence of port flapping: Port flapping occurs when a network port rapidly switches between up and down states. While checking logs could provide information, external interference is a more likely culprit given the symptoms.

This issue is part of the Networking Troubleshooting domain in the CompTIA A+ Core 1 exam.

In DNS (Domain Name System), the AAAA record is used to map a domain or device to an IPv6 address. IPv6 addresses are 128-bit addresses, and the AAAA record is specifically designed for handling these larger addresses.

C . AAAA: This record is used to associate a hostname with an IPv6 address in DNS.

Why the other options are incorrect:

A . A: An A record maps a domain to an IPv4 address, not an IPv6 address.

B . CNAME: A CNAME (Canonical Name) record is used to alias one domain name to another but does not map to an IP address directly.

D . MX: An MX (Mail Exchange) record is used to direct email traffic to the correct email servers, not to map devices to IP addresses.

This falls under the Networking domain of the CompTIA A+ Core 1 exam.

When configuring a router for a small business, the first setting a technician should configure is DHCP (Dynamic Host Configuration Protocol). DHCP is responsible for automatically assigning IP addresses to devices on the network, which is essential for enabling communication within the network. Without DHCP, devices would not receive the necessary IP configurations to communicate effectively.

A . DHCP: Configuring DHCP first ensures that all devices on the network receive their IP addresses automatically.

Why the other options are incorrect:

B . UPnP: UPnP (Universal Plug and Play) is used for simplifying device connectivity, but it is not a critical setting to configure first.

C . MAC filtering: MAC filtering is a security feature that limits which devices can connect to the network based on their MAC addresses, but it should be set up after basic network configuration.

D . VPN: VPN (Virtual Private Network) settings are for secure remote access, and should be configured after the essential network settings like DHCP are in place.

This topic falls under the Networking domain of the CompTIA A+ Core 1 exam.

Single-mode fiber uses a beam of light to transmit data over long distances through a very thin, flexible cable. It is commonly used for high-speed data transmission across wide areas, such as between buildings or over long distances within a network. Single-mode fiber offers a higher bandwidth and longer distance capabilities compared to other types of fiber optics.

D . Single-mode fiber: Transmits data using light through a fiber optic cable, making it ideal for long-distance communication.

Why the other options are incorrect:

A . Coaxial: Coaxial cables use electrical signals, not light, to transmit data.

B . HDMI: HDMI (High-Definition Multimedia Interface) is used for transmitting audio and video signals but does not use light for data transmission.

C . Thunderbolt: Thunderbolt cables transmit data using electrical signals and are typically used for high-speed data transfer and display connections.

This falls under the Networking and Hardware domain in the CompTIA A+ Core 1 exam.

VGA (Video Graphics Array) is a legacy 15-pin connector used for transmitting analog video signals. VGA was commonly used to connect monitors to computers, but it has been largely replaced by more modern digital interfaces like DVI and HDMI.

C . VGA: A legacy 15-pin connector used for analog video signals.

Why the other options are incorrect:

A . DisplayPort: DisplayPort is a newer digital interface and does not use a 15-pin connector.

B . DVI: DVI (Digital Visual Interface) is a digital connector used for video signals but does not have 15 pins.

D . HDMI: HDMI is also a digital interface for audio and video, but it uses a different connector with no 15 pins.

This topic relates to the Hardware domain in the CompTIA A+ Core 1 exam.

When connecting a Bluetooth device like a hands-free car system, using a PIN code adds a layer of security. The PIN code must be entered or confirmed during the pairing process to ensure that the connection is authorized and secure.

D . PIN code: Provides an additional security measure during Bluetooth pairing to prevent unauthorized access.

Why the other options are incorrect:

A . BitLocker: BitLocker is a drive encryption feature used to secure data on hard drives, not for securing Bluetooth connections.

B . Biometrics: Biometrics refers to authentication using physical traits like fingerprints, which are not typically used for Bluetooth connections.

C . TPM: Trusted Platform Module (TPM) is a hardware security feature used for encryption and secure boot processes, not for Bluetooth pairing.

This falls under the Mobile Devices and Security domain in the CompTIA A+ Core 1 exam.

To adjust the VLAN configuration, the technician needs to configure the switch. VLANs are configured on switches to segment network traffic logically, even if the devices are connected to the same physical network. By adjusting the VLAN settings on the switch, the technician can ensure that the sales department has access to the marketing department's network resources.

C . Switch: VLANs are configured on switches to logically separate or combine network segments.

Why the other options are incorrect:

A . Network card: A network card is a hardware component that connects a device to a network, but it does not configure VLANs.

B . Patch panel: A patch panel is used to organize and manage network cables but does not play a role in VLAN configuration.

D . Server: A server may host resources, but VLANs are managed at the switch level.

E . Hub: A hub is a basic networking device that simply forwards traffic; it cannot be used to configure VLANs.

This falls under the Networking domain in the CompTIA A+ Core 1 exam.

A sandbox is an isolated environment typically used for testing software or running applications without affecting the host system. The isolated nature of a sandbox allows users to run applications or even entire operating systems in a contained virtual machine, which prevents potential harm to the primary system.

A . Sandbox: A sandbox is an isolated virtual machine environment where users can test new applications or software safely.

Why the other options are incorrect:

B . Hypervisor: A hypervisor is software that manages multiple virtual machines (VMs), but it is not an isolated VM itself.

C . Container: Containers isolate applications but are not fully isolated virtual machines. Containers share the host OS kernel, while sandboxes provide a full virtualized environment.

D . VDI (Virtual Desktop Infrastructure): VDI provides a desktop environment hosted on a centralized server. It is not the same as an isolated virtual machine for testing purposes.

This is covered under the Virtualization domain in the CompTIA A+ Core 1 exam.

To make sure that the new operating system on the USB drive loads automatically, the user must configure the boot options in the BIOS/UEFI. Boot options determine the sequence of devices the computer will attempt to boot from when powered on. Setting the USB drive as the first boot option ensures that the system will load from the USB before trying other devices.

D . Boot options: The user should configure the boot sequence to prioritize the USB drive, so the system boots from it automatically.

Why the other options are incorrect:

A . BIOS password: A BIOS password is used to restrict access to the BIOS settings, not to control boot order.

B . Trusted Platform Module (TPM): TPM is a security feature used for cryptographic operations and securing hardware, not for controlling boot options.

C . USB permissions: This refers to access permissions for USB devices but does not affect booting from a USB drive.

This concept is part of the Hardware domain in the CompTIA A+ Core 1 exam, specifically regarding BIOS configuration.