Infrastructure

Which component(s) of a computer system are involved in graphics processing? (Select TWO).

• Power supply Unit (PSU)

• Random Access Memory (RAM)

• GPU

• Cooling System

• Hard disk

Answer explanation

The GPU (Graphics Processing Unit) is the correct answer. It is designed specifically for processing and rendering graphics, making it a crucial component for graphical tasks. The cooling system is responsible for dissipating heat generated by the GPU and other components during intensive graphical tasks, ensuring that the GPU can function efficiently. RAM is a type of volatile memory used by a computer system to temporarily store data that's being processed by the CPU. While it might store graphical data temporarily during processing, it does not perform the actual graphics processing. Instead, that task is primarily performed by the GPU and, to a lesser extent, the CPU. The Hard Disk Drive is the primary storage device in a computer, responsible for storing all data and files persistently, even when the power is turned off. However, it is not directly involved in graphics processing. Graphics processing is handled primarily by the CPU and the GPU, which perform computations and render images to be displayed on the screen. The Power Supply Unit provides the necessary power to all the components of the computer system, including the ones that perform graphics processing. However, the PSU itself doesn't participate in the graphics processing. It only provides the required power for the components to function effectively.

Which of the following interfaces would you use to connect a device to a network over a telephone line?

• USB

• RJ-45

• RJ-11

• Thunderbolt

Answer explanation

The RJ-11 connector is typically used to connect devices to networks over telephone lines, such as with DSL internet service. The RJ-45 connector is typically used for Ethernet networks, not for connecting devices to networks over telephone lines. While USB modems that use RJ-11 do exist, the RJ-11 connector itself is the interface used for telephone line connections. Thunderbolt is a high-speed interface used for data transfer and display connectivity, not for network connections over telephone lines.

What does GPU stand for in the context of computer hardware?

• Gaming Process Unit

• General process unit

• Graphics process Unit

• Graphical performance unit

Answer explanation

A GPU is a specialized electronic circuit that is designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device. It is specifically designed for handling complex calculations and rendering graphics. While GPUs are commonly used in gaming to render high-quality graphics, the term "Gaming Processing Unit" is not a standard or widely recognized term in computer hardware. Although it shares similar meanings to the correct answer, the commonly used term in the industry is Graphics Processing Unit. The general processing unit is not a common term used in computer hardware. The correct term is Central Processing Unit (CPU).

Which type of CPU architecture is commonly found in mobile phones and tablets?

• 64-Bit

• 32-bit

• ARM

• SSD

Answer explanation

ARM stands for Advanced RISC Machine and it is a type of CPU architecture commonly found in mobile phones and tablets. ARM processors are known for their energy efficiency and are widely used in portable devices due to their low power consumption. SSD stands for Solid State Drive and it refers to a type of storage device, not CPU architecture. SSDs are used for data storage and retrieval in computer systems, but they are not directly related to the type of CPU architecture used in mobile phones and tablets. 64-bit refers to the size of the data that can be processed by a CPU. While there are mobile devices that use 64-bit CPUs, it is not specific to mobile phones and tablets only. 32-bit refers to the size of the data that can be processed by a CPU. While there are mobile devices that use 32-bit CPUs, it is not specific to mobile phones and tablets only.

Samuel is setting up his computer workstation and wants to connect his computer to an older display device that uses analog signals. Which of the following is MOST used to connect a computer to a display device using analog signals?

• VGA

• DisplayPort

• DVI-D

• HDMI

Answer explanation

VGA (Video Graphics Array) is a type of connector commonly used to connect a computer to a display device, such as a monitor or projector, using analog signals. It is characterized by its distinctive 15-pin configuration and is widely supported by older display devices. HDMI (High-Definition Multimedia Interface) is a digital interface commonly used to connect audio/video sources, such as computers, Blu-ray players, or game consoles, to display devices. It does not use analog signals like VGA. DVI (Digital Visual Interface) is a digital interface commonly used to connect computers and display devices. While DVI supports both analog and digital signals, the analog variant (DVI-A) is less common and is not typically used for connecting to display devices using analog signals. DisplayPort is a digital display interface commonly used to connect computers and display devices. It supports high-resolution video and audio, but it does not use analog signals. DisplayPort is gradually replacing VGA and DVI connections in modern devices.

Sarah is a computer technician at a large office. She is tasked with setting up and configuring several network printers and scanners for the newly established marketing department. Sarah needs to ensure that the IP addresses for each device are correctly assigned to enable network communication. What type of peripherals typically require manual configuration of IP addresses for network connectivity?

• Driver Installation

• Plug-and-Play

• web-based configuration

• Ip-based peripherals

Answer explanation

IP-based peripherals, such as network printers, IP cameras, or network storage devices, typically require manual configuration of IP addresses for network connectivity. These devices rely on IP (Internet Protocol) addresses to communicate over a network. During setup, you need to assign a specific IP address to the peripheral device, ensuring that it is unique and compatible with the network infrastructure. This manual configuration allows the device to establish communication and connect to the network. Driver installation is the process of installing the necessary software (drivers) to enable proper communication between the peripheral device and the computer's operating system. It does not directly involve IP address configuration. Plug-and-play peripherals are designed to be automatically recognized and configured by the computer without the need for manual IP address configuration. These devices are typically connected to the computer via a USB or Thunderbolt port and rely on the operating system's automatic network configuration capabilities. Web-based configuration refers to the setup and configuration of network devices through a web-based user interface. This may involve accessing the device's settings using a web browser and configuring various parameters, but it is not specifically related to IP address configuration.

Jane needs to share a large amount of data with her team, who all work in the same office building. Which local network storage type would be more suitable for her?

• NAS

• HDD

• Flash Drive

• SSD

Answer explanation

NAS Network-attached storage (NAS) devices provide dedicated, shared storage over a network, making it ideal for sharing files among a team in the same office. Flash drives, although portable and reusable, wouldn't facilitate easy sharing among teams without physically passing the drive around, making them less suitable for Jane's scenario. Solid state drives (SSDs) provide fast data access but aren't directly shareable like network storage solutions. A Hard Disk Drive (HDD) provides storage, but isn't as easily shareable between multiple users without additional networking technology.

Which of the following devices are specifically built to offer entertainment by streaming digital content such as videos or music?

• IoT Devices

• Streaming Media Devices

• Servers

• Workstations

Answer explanation

Streaming media devices are precisely made to offer digital entertainment by streaming content. They focus on media access and consumption. IoT devices are designed to interact with and automate physical environments. They aren't dedicated to entertainment streaming. Workstations are high-end computers mainly designed for intense computing tasks not primarily related to streaming digital entertainment. While servers can hold and distribute media, they're not specifically built for the purpose of streaming digital entertainment.

Which of the following interfaces is used primarily for connecting Mac computers and devices, and offers the MOST data transfer speed?

• Thunderbolt

• VGA

• FireWire

• RJ-11

Answer explanation

Thunderbolt is a high-speed interface commonly used with Apple devices for data transfer and display connectivity. While FireWire is used for data transfer, it has largely been replaced by interfaces like Thunderbolt and USB 3.0. VGA, or Video Graphics Array, is primarily used to connect computers to monitors and does not support high-speed data transfer. The RJ-11 connector is typically used for telephone lines, not high-speed data transfer.

Which of the following is unique to each network device and cannot be changed?

• MAC address

• Network Name

• Serial Number

• IP address

Answer explanation

A Media Access Control (MAC) address is a unique identifier assigned to a network interface controller (NIC) for use as a network address. Unlike IP addresses, MAC addresses are typically hardcoded by the manufacturer and can't be changed. IP addresses are assigned by the network based on DHCP or static assignment and can change over time or when moving between networks. While a serial number can be unique to a device, it is not specific to networking and can also be used on non-network devices. The name of a network can be changed by an administrator, hence, it is not unique or unchangeable.