CompTIA FC0-U61 - CompTIA IT Fundamentals+ Certification Exam

 Fault tolerance is the ability of a system to continue functioning even when one or more components fail. RAID (Redundant Array of Independent Disks) is a technology that uses multiple hard drives to store data in a way that improves performance and reliability. If one hard drive in the RAID array fails, the data can be recovered from another drive without losing any information. This is an example of fault tolerance.

References: CompTIA IT Fundamentals+ Study Guide: Exam FC0-U61, Second Edition, Chapter 6: Infrastructure Concepts, page 240.

A wireless access point (WAP) is a device that allows wireless devices to connect to a wired network using Wi-Fi or Bluetooth. A WAP usually has a default configuration that is set by the manufacturer, which may include a default password, SSID (service set identifier), encryption type, and wireless standard. The default password is often weak or well-known, which makes the WAP vulnerable to unauthorized access or hacking. Therefore, the first thing that a user should do when setting up a new WAP is to change the default password to a strong and unique one. This will help secure the WAP and prevent unwanted changes or attacks. Changing the SSID to a unique name, enabling WPA2 encryption, and enabling the highest available wireless standard are also important steps to improve the security and performance of the WAP, but they should be done after changing the default password.

VGA (Video Graphics Array) is an analog interface used between a computer and monitor or projector that transmits video signals. Unlike HDMI and DisplayPort, VGA does not support the transmission of audio signals. It only handles graphics, thus it is often used in situations where only video output is needed without audio.

References: The functionalities of different video connectors like VGA, HDMI, and DisplayPort are often covered in CompTIA IT Fundamentals study materials, particularly in sections related to computer hardware and peripherals.

A programmer uses DML to modify data in a database. DML stands for Data Manipulation Language, which is a subset of SQL (Structured Query Language) that is used to manipulate or change data in a database. DML includes commands or statements such as INSERT, UPDATE, DELETE, or MERGE, which can be used to add, modify, remove, or combine data in a table or structure within a database. DML can help a programmer to perform various operations or functions on the data in a database. References : The Official CompTIA IT Fundamentals (ITF+) Study Guide (FC0-U61), page 143.

One of the primary advantages of using locally saved files is that they do not depend on a network connection. This means that users can access their files even when there is no internet or network connectivity, offering greater control and reliability when working offline. Locally saved files are stored directly on the device’s hard drive or SSD, making them accessible at any time without needing external network resources.

A. Readily shareable with others applies more to cloud-based storage, as sharing files locally often requires manual transfer methods like USB or email.

B. No reliance on local backups is incorrect because local files still need to be backed up manually.

C. Immediately accessible by others on the cloud refers to cloud storage, not local storage.

References:

CompTIA A+ Exam Objectives (Core 1)

Official CompTIA IT Fundamentals (ITF+) Certification Guide

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 An algorithm is a set of specific step-by-step instructions/procedures and conditional statements that will be used by a computer program to solve problems. An algorithm defines the logic and sequence of actions that a computer program must follow to perform a task or achieve a goal. An algorithm can be expressed in various ways, such as pseudocode, flowchart, or natural language. References : The Official CompTIA IT Fundamentals (ITF+) Study Guide (FC0-U61), page 131.

To track system messages and alerts effectively and observe trends over time, the best tool to use are system logs. Logs record events and data during the operation of a system or software application, allowing a network administrator to review historical data, spot patterns, or identify recurrent issues. This is essential for troubleshooting, auditing, and maintaining the overall health of the IT infrastructure.

References:The importance of using logs for monitoring and tracking system activities is covered under the "Networking and Connectivity" section of CompTIA IT Fundamentals, as well as various sections discussing system maintenance and troubleshooting across CompTIA certification study materials.

 A WLAN card would be the best choice for a user who wants to use a laptop outside the house and still remain connected to the Internet. A WLAN card stands for wireless local area network card, which is a device that allows a laptop to connect to a wireless network using radio waves. A WLAN card can enable a laptop to access the Internet through public or private wireless hotspots, such as cafes, libraries, airports, or homes. References : The Official CompTIA IT Fundamentals (ITF+) Study Guide (FC0-U61), page 170.