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質問 # 143
A database administrator wants to populate a database with large amounts of data from an external source.
Which of the following actions should be used to get the database populated?
- A. IMPORT
- B. EXPORT
- C. ALTER
- D. SELECT
正解：A
解説：
IMPORT is the action that should be used to populate a database with large amounts of data from an external source. IMPORT is a command or function that allows a database to read and load data from an external file or source into a table or structure within the database. IMPORT can help a database administrator to transfer or migrate data from one database to another or from a different format to a database format. IMPORT can also help a database administrator to backup or restore data from a file or source. Reference : The Official CompTIA IT Fundamentals (ITF+) Study Guide (FC0-U61), page 143.
質問 # 144
Which of the following is best used to store many integers in one container?
- A. Constant
- B. Array
- C. Function
- D. Variable
正解：B
解説：
An array is the best choice for storing many integers in one container. An array is a data structure that can hold a fixed number of elements, which are all of the same data type. It is especially useful for storing a collection of data items at contiguous memory locations, allowing easy access to the elements using an index. Arrays are fundamental in programming for organizing data, allowing for efficient storage and quick access.
References: Arrays and their uses are basic concepts covered in programming fundamentals, frequently discussed in CompTIA IT Fundamentals and other introductory programming resources.
質問 # 145
An employee is asked to generate a report on a student information system. The employee uses spreadsheet software and connects to a remote database to pull data for the report. Which of the following types of application architectures did the employee use?
- A. Web application
- B. Cloud application
- C. Client-server application
- D. Standalone application
正解：C
質問 # 146
Which of the following creates multifactor authentication when used with something you have?
- A. Password
- B. Single sign-on
- C. Geolocation
- D. Hardware token
正解：A
解説：
A password is something you know, which can be used to create multifactor authentication when used with something you have, such as a hardware token or a smart card. Multifactor authentication is a security method that requires two or more factors of authentication to verify a user's identity. Single sign-on is a feature that allows a user to access multiple applications or systems with one set of credentials, but it does not necessarily involve multifactor authentication. Geolocation is a feature that determines a user's physical location based on GPS or other methods, but it does not necessarily involve multifactor authentication. Reference: The Official CompTIA IT Fundamentals (ITF+) Student Guide (Exam FC0-U61), Chapter 7: Security Concepts
質問 # 147
An accounting firm needs to allow users to update records simultaneously without errors. Which of the following best meets the firm's needs?
- A. Flat file
- B. Spreadsheet
- C. Document
- D. Database
正解：D
解説：
A database is the best solution for allowing multiple users to update records simultaneously without causing errors. Databases, especially relational databases like MySQL, PostgreSQL, and Microsoft SQL Server, are designed for concurrent access, ensuring data consistency and integrity through mechanisms like transaction management and locking.
A . Flat file does not support concurrent access efficiently, making it unsuitable for simultaneous updates.
B . Document formats like Word or PDFs are not designed for simultaneous multi-user editing.
D . Spreadsheet programs like Excel can allow multiple users to view data but are prone to errors when used for concurrent data updates.
Reference:
CompTIA IT Fundamentals (ITF+) Certification Guide
Official CompTIA Database Fundamentals Study Materials
質問 # 148
Which of the following is the BEST option for a developer to use when storing the months of a year and when performance is a key consideration?
- A. Vector
- B. Array
- C. List
- D. String
正解：B
解説：
Explanation
An array is a type of data structure that stores multiple values of the same data type in a fixed-size sequence.
An array would be the best option for a developer to use when storing the months of a year and when performance is a key consideration because an array allows fast access to any element by using its index number. A vector, a list, and a string are not types of data structures that offer fast access to elements or store multiple values of the same data type in a fixed-size sequence. References: CompTIA IT Fundamentals+ Study Guide: Exam FC0-U61, Second Edition, Chapter 4: Programming Concepts and Data Structures, page
147.
質問 # 149
A technician is upgrading a company's Wi-Fi from 802.11a to support a range of 115ft (35m) indoors and a speed of 700Mbps. Which of the following should the technician select for the upgrade?
- A. 802.11b
- B. 802.11n
- C. 802.11g
- D. 802.11ac
正解：D
解説：
The 802.11ac standard supports higher data rates, improved capacity, and better performance in dense environments. It offers significant improvements over previous standards like 802.11a, 802.11b, 802.11g, and 802.11n, with support for speeds up to several gigabits per second under optimal conditions. For a range of 115ft indoors and a speed of 700Mbps, 802.11ac is the most suitable choice due to its enhanced capabilities to handle higher speeds and greater ranges than its predecessors.
Reference: Details about various Wi-Fi standards including their range and speed capabilities are covered in IT certifications such as CompTIA Network+ and are essential knowledge for IT professionals.
質問 # 150
Which of the following is primarily a confidentiality concern?
- A. Altering
- B. Destructing
- C. Impersonating
- D. Eavesdropping
正解：D
解説：
Eavesdropping is an electronic attack where digital communications are intercepted by an individual whom they are not intended1. This is a confidentiality concern because it violates the principle of limiting access to information to authorized people only. Confidentiality is a set of rules that limits access to information1. Eavesdropping can compromise the secrecy of the information and expose sensitive data to unauthorized parties. Reference:
Confidentiality, Integrity & Availability Concerns | CompTIA IT Fundamentals FC0-U61 | 6.1
質問 # 151
A systems administrator wants to return results for a time range within a database. Which of the following commands should the administrator use?
- A. UPDATE
- B. DELETE
- C. SELECT
- D. INSERT
正解：C
解説：
A SELECT command is a SQL (Structured Query Language) statement that is used to return results for a time range within a database. A SELECT command can specify the columns and rows to be retrieved from one or more tables based on certain criteria or conditions. A SELECT command can also use functions or operators to manipulate or filter the data. For example, a SELECT command can use the BETWEEN operator to specify a time range for a date column89. Reference := CompTIA IT Fundamentals (ITF+) Study Guide, 2nd Edition, Chapter 5: Database Fundamentals3; SQL SELECT Statement - W3Schools10
質問 # 152
Which of the following statements BEST describes binary?
- A. A notational system used to represent a storage unit of measurement
- B. A notational system used to represent Internet protocol addressing
- C. A notational system used to represent media access control
- D. A notational system used to represent an "on" or "off" state
正解：D
解説：
Binary is a notational system used to represent an "on" or "off" state in digital devices or systems. Binary uses only two symbols: 0 (off) and 1 (on). Binary is also known as base 2 notation, because each symbol represents a power of 2. Binary is the fundamental building block of all computer operations and data storage, as it can encode any type of information using sequences of bits (binary digits)1112. References := CompTIA IT Fundamentals (ITF+) Study Guide, 2nd Edition, Chapter 2: Computing Basics3; What is Binary? - Definition from Techopedia
質問 # 153
A company allows employees to use their own devices for work. Which of the following is the best security method for such devices?
- A. Enable host IDS.
- B. Enable passwords.
- C. Update the device software.
- D. Remove browser cookies.
正解：C
解説：
The best security method for employees who use their own devices for work is to keep the device software updated. Regular software updates include security patches that address vulnerabilities, reducing the risk of exploits. This preventative measure is crucial for maintaining the security integrity of not only the individual devices but also the corporate network they connect to.
Reference: Mobile and device security, including the importance of software updates, is covered in CompTIA IT Fundamentals, highlighting the best practices for securing devices used in a corporate environment.
質問 # 154
When developing a game, a developer creates a boss object that has the ability to jump. Which of the following programming concepts does jump represent?
- A. Object
- B. Property
- C. Attribute
- D. Method
正解：D
解説：
A method is a programming concept that represents a function or a procedure that performs a specific task or action on an object. An object is a programming concept that represents an instance of a class or a data type that has properties and methods. A method would best describe the ability to jump for a boss object in game development because it is an action that the boss object can perform. Property, object, and attribute are not programming concepts that represent the ability to jump for a boss object in game development. Property is a programming concept that represents a characteristic or a feature of an object, such as color, size, or name. Object is a programming concept that represents an instance of a class or a data type that has properties and methods. Attribute is another term for property in some programming languages. Reference: CompTIA IT Fundamentals+ Study Guide: Exam FC0-U61, Second Edition, Chapter 4: Programming Concepts and Data Structures, page 143.
質問 # 155
Malware infections are being caused by websites. Which of the following settings will help prevent infections caused by Internet browsing?
- A. Configure prompting before downloading content.
- B. Notify when downloads are complete.
- C. Delete browsing history on program close.
- D. Turn on private browsing
正解：A
解説：
Configuring prompting before downloading content will help prevent infections caused by Internet browsing. Prompting before downloading content is a browser setting that asks the user for confirmation or permission before downloading any file or program from a website. This setting can help prevent malware infections by allowing the user to check the source, type, and size of the file or program before downloading it. Prompting before downloading content can also help the user avoid unwanted or unnecessary downloads that may consume bandwidth or storage space. Reference : The Official CompTIA IT Fundamentals (ITF+) Study Guide (FC0-U61), page 202.
質問 # 156
Which of the following is required for a cloud network?
- A. Local applications
- B. Internet access
- C. Network infrastructure
- D. Credentials
正解：B
解説：
For a cloud network to function, internet access is essential. This connectivity allows users and devices to access cloud services and resources hosted remotely. Without internet access, the interaction with cloud-based applications and data storage would be impossible, making it a fundamental requirement for utilizing cloud services.
References:CompTIA IT Fundamentals documentation frequently underscores the importance of internet connectivity in the context of cloud computing, detailing how it enables access to remote services and resources integral to cloud networks.
質問 # 157
Given the following information:
Which of the following is descriptive of both tables?
- A. The data is corrupted and is being shown as two sets.
- B. The database uses SQL.
- C. The database uses a flat file structure.
- D. The data most likely exists within a relational database.
正解：D
解説：
The description that best fits both tables is that the data most likely exists within a relational database. A relational database is a type of database that organizes data into tables, which consist of rows and columns.
Each table represents an entity, such as customers, orders, products, etc., and each row represents an instance of that entity, such as customer 01, order 02, product 03, etc. Each column represents an attribute of that entity, such as name, address, phone number, etc. Tables can be related to each other by using common columns, such as ID, which can act as primary keys or foreign keys. A primary key is a column that uniquely identifies each row in a table, such as ID in Table A and Table B.
A foreign key is a column that references the primary key of another table, such as ID in Table B referencing ID in Table A. A relational database uses SQL (Structured Query Language) to create, manipulate, and query data in tables. The database does not use a flat file structure, which is another type of database that stores data in plain text files with fixed fields and records.
A flat file structure does not support relationships between tables or SQL queries. The data is not corrupted and shown as two sets, but rather separated into two tables for normalization purposes. Normalization is the process of organizing data in tables to reduce redundancy and improve efficiency and integrity. References:
The Official CompTIA IT Fundamentals (ITF+) Student Guide (Exam FC0-U61), Chapter 6: Database Fundamentals1
質問 # 158
Which of the following is something that would likely need a copyright?
- A. A company's brand name
- B. A copy of a business contract
- C. A new commercial software program
- D. An idea for computer communication
正解：C
解説：
A new commercial software program would likely need a copyright because it is a tangible expression of creativity and intellectual effort in the form of code and user interface design. Copyrights protect such creative works from being copied or used without permission, ensuring that creators or owners have exclusive rights to distribute and modify their creations.
References:CompTIA IT Fundamentals study guides discuss intellectual property rights in the context of IT, focusing on how copyrights protect software and other digital content from unauthorized reproduction or use.
質問 # 159
Within a database, which of the following would be the best access method to use to display a subset of a table?
- A. UPDATE
- B. SELECT
- C. DROP
- D. INSERT
正解：B
解説：
Explanation
The SELECT statement is used to query a database and retrieve a subset of data that matches the specified criteria. For example, SELECT * FROM Customers WHERE City = 'London' will return all the records from the Customers table where the City column is equal to 'London'. The SELECT statement can also be used to join multiple tables, perform calculations, sort and group data, and apply filters and functions. The SELECT statement is one of the most commonly used SQL commands and is essential for manipulating and analyzing data in a database.
質問 # 160
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FC0-U61試験は、75問の多肢選択問題から成る60分間の試験です。合格には、可能な900点中650点以上が必要です。この試験は、英語、スペイン語、日本語、ポルトガル語、ドイツ語など、複数の言語で提供され、任意のPearson VUEテストセンターで受験できます。この認定は3年間有効で、その後更新する必要があります。CompTIA IT Fundamentals認定を取得することは、個人のキャリアの展望を向上させ、ITコンセプトの堅固な基礎を築くための素晴らしい方法です。
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