Test- Retele De Calculatoare

A laptop is a type of computer that is designed to be portable and can be easily carried around. Unlike desktop computers, laptops are compact and lightweight, making them convenient for on-the-go use. This makes the laptop the correct answer for the question about which type of computer is portable. Mainframe, minicomputer, and desktop computers are not specifically designed for portability and are typically larger and less portable than laptops.

A computer network is a collection of interconnected computers that allows for the sharing of resources and data. This means that option a, "este un ansamblu de calculatoare conectate între ele" (it is a collection of interconnected computers), is the correct answer. Option b is incorrect because a computer network does allow for the sharing of resources, such as printers. Option c is also incorrect because a computer network does allow for the sharing of data between connected computers.

A good password security policy involves regularly changing passwords to prevent unauthorized access.

The correct answer is LAN. LAN stands for Local Area Network, which is a type of network that connects computers and devices within a limited area, such as an office or a building. In this case, the computers in the office are connected in a LAN so that the staff can have access to the network printer.

The correct answer is "extern" because the question is asking about the different types of modems, and "extern" refers to an external modem. This means that the modem is a separate device that connects to a computer or network device through a cable or other physical connection.

World Wide Web este o parte a Internetului.

The correct answer is that the medium of communication between two computers can be through a cable, without a cable, or through a satellite. This means that there are multiple ways in which computers can communicate with each other. They can be connected physically through a cable, such as an Ethernet cable, or they can communicate wirelessly without the need for a cable. Additionally, communication can also be established through a satellite, which allows for long-distance communication over a large area.

An extranet refers to a private network of a company that includes certain users from outside the company.

The correct answer is "unui continent, unei tari" because a Wide Area Network (WAN) is a network that covers a large geographical area, typically spanning multiple cities, countries, or even continents. It is designed to connect multiple Local Area Networks (LANs) together, allowing for communication and data transfer over long distances. Therefore, a WAN can be extended across a continent or a country.