Final answer:
On a network, a server and a computer act as hosts because they can send or receive data, initiate data transfers, and interact with other network devices.
Step-by-step explanation:
On a network, the term host typically refers to any device that is capable of sending or receiving data. Among the options given, a server and a computer can act as hosts.
They can initiate data transfers, host services, and interact with other devices on the network. In contrast, a router and a switch are networking devices used to manage traffic between different network segments and devices, but they are not considered hosts because they primarily direct traffic rather than initiate it.
A host on a network refers to any device or computer that connects to and uses the network. In the given options, all of the choices are devices that can be part of a network, but the computer is the most common example of a host.
Several factors could contribute to a tower PC not turning on and randomly shutting off. Some potential causes include:
Faulty power supply: A malfunctioning power supply can lead to issues with powering on or cause random shutdowns.
Overheating: If the PC is not adequately cooled, it can overheat, leading to instability and shutdowns. Check if the fans are working properly and if there's proper ventilation.
Software issue: Certain software problems, such as driver conflicts or operating system issues, can result in unexpected shutdowns. However, these are less likely to cause difficulty in turning on the PC.
Hardware failure: Various hardware components, such as a failing motherboard, RAM, or hard drive, could contribute to these problems.
Given the symptoms described, a combination of faulty power supply and potential overheating issues seems likely. It's recommended to check the power supply, ensure proper cooling, and examine the system for any hardware issues.