CompTIA ITF+ Practice Test (FC0-U61)

Non-structured data does not conform to a predefined data model or schema, allowing data to be stored in its natural form. This is different from structured data, which requires a predefined schema and is organized into tables with rows and columns. Semi-structured data is a form that does not reside in relational databases but still has some organizational properties that make it easier to analyze than non-structured data.

A digital signature provides integrity, authentication, and non-repudiation. Its primary function in this context is to ensure integrity, which confirms that the document has not been altered since it was signed. If any changes were made, the signature verification would fail. Disk encryption protects data at rest but does not prevent alteration of a file once the disk is decrypted and in use. A strong password is a form of authentication but does not protect a document from being altered after it is accessed. Antivirus software scans for and removes malicious software but does not verify the integrity of individual documents against unauthorized changes.

An online workspace allows for real-time updates to shared documents, integrated communication tools, and scheduling within a single platform. This enables teams to collaborate more effectively without the need to manage multiple tools or applications for different aspects of their work. While all options may assist in collaboration to some degree, an online workspace is designed specifically for the described scenario, providing the most efficient and cohesive environment for the team.

Markup languages are designed for the processing, definition, and presentation of text. They establish rules for encoding documents in a format that is both human-readable and machine-readable. HTML is the standard markup language used to create web pages and it enables the structuring of content for web pages using elements such as paragraphs, lists, and tables.

To connect a device like a laptop to a Wi-Fi network, a wireless network interface card (WNIC) is necessary to send and receive the radio signals. The user also needs to know the network's name, the Service Set Identifier (SSID), to select the correct one from the list of available networks. If the network is secured, a password will be required to gain access. An RJ-45 cable, also known as an Ethernet cable, is used for wired network connections and is not needed to connect a client device to a wireless network.

VGA (Video Graphics Array) is a standard for connecting monitors to computers that transmits analog signals. HDMI, DisplayPort, and Mini DisplayPort are all newer standards that support digital signals, not analog.

The correct answer is screen sharing. This feature in conferencing software is designed to broadcast the content of one user's screen to all other participants in real-time, making it the ideal tool for presentations and demonstrations. While instant messaging could be used to send a link and file transfer could be used to send the document, neither allows for a live, guided presentation. Remote desktop control is used for actively controlling another user's computer, which is not required for simply presenting information.

The correct approach is to tackle each problem separately, as combining the issues may complicate the diagnosis and resolution process. By isolating each issue, you can dedicate focus and can more efficiently determine the cause and solution for each individual problem. Addressing both problems simultaneously may lead to confusion or misdiagnosis.

A Wide Area Network (WAN) spans a large geographic area, such as cities, states, or even countries. The Internet is the largest WAN, as it connects computers all around the world. While a LAN connects devices within a relatively small and localized group, such as a home or office, and a campus network serves a specific area like a university or corporate campus, they are both more localized than a WAN. A router, which connects networks, and a modem, which connects to an Internet Service Provider, do not by themselves constitute networks.

Regular backups to cloud storage ensure that critical files are not only saved frequently but are also stored off-site, which protects against local disasters like fire, theft, or hardware failure. This approach adheres to the best practices for backing up essential data and provides a resilient recovery option. Daily on-site backups, while important, may not provide adequate protection against local disasters. Weekly backups might not give frequent enough data recovery points for critical financial records, leading to potential data loss. On-demand backups rely on manual intervention and may not occur with the necessary regularity for important documents.

Before installing a printer or any other peripheral devices, it is usually recommended to check if the device is 'Plug-and-play', meaning it can be recognized and installed automatically by your laptop without the need for additional drivers. If plug-and-play is not supported, you would need to install drivers before the device can be used effectively, either from a CD provided with the device or by downloading from the manufacturer's website. The other options listed are not typically the first steps in setting up a new printer.

In a two-tier architecture, the client application constitutes the first tier, directly interacting with the database or server as the second tier. This setup manages user interfaces and application logic on the client’s side, while the database system is stored on the server side. The absence of an intermediate layer between the client and the server is why it is named a two-tier architecture. A three-tier architecture would include another separate layer, typically the business logic, which is not mentioned in the scenario.

Public IP addresses are assigned to devices on the Internet by ISPs and are routable on the global Internet. 192.168.1.1 is a private IP address used within a local network and not routable on the Internet. 169.254.0.1 is an Automatic Private IP Addressing (APIPA) address used when DHCP fails, and is not routable. 10.0.0.1 is a private IP address. 203.0.113.1 is within the range designated for documentation and exemplification, and it is commonly used as a public IP address in examples.

A constant should be used to represent the number of weeks in a year because this value is fixed and should not be altered during the program's execution. Declaring a constant instead of a variable ensures the safety and consistency of the data. Using variables for fixed values can lead to accidental changes and bugs.

The central computer described in the scenario is a server. A server manages network resources, stores files, and runs applications, providing services to client computers within the network. Other options like router, switch, and NAS perform specific roles but do not fulfill the general network management, storage, and application hosting functions that define a server.