CompTIA ITF+ Practice Test (FC0-U61)

Having both local and off-site backups ensures that if a disaster impacts the physical location of the business, such as a natural disaster, there will still be access to the operating system backups. Local backups allow for quick restoration to minimize downtime, while off-site backups provide additional security against localized incidents. Full backups ensure that the entire operating system is available for restoration, which is critical for business continuity. Incremental or differential backups might not always store the full state needed for a complete and rapid system recovery.

The correct answer is CREATE TABLE, because this SQL statement defines a brand-new table and its columns inside the current database. ALTER TABLE is used only for modifying an existing table definition, such as adding or deleting columns. INSERT INTO adds new rows to an existing table. CREATE DATABASE establishes an entirely new database, not a table within one.

The next step in testing your theory is to check the network settings on the user's computer. This includes verifying that the correct network adapter is enabled and that the IP settings are correct. If these settings are incorrect or the network adapter is disabled, the computer may not connect to the network. Rebooting the computer to reset the network settings can also be a logical next step but should typically follow verifying the settings. Replacing the network cable or contacting the network administrator should be considered after initial troubleshooting steps.

A strong password should be complex, including a combination of uppercase letters, lowercase letters, numbers, and symbols. It should be long enough to resist common brute-force attacks, typically recommended to be at least 12 characters long. In this case, 'bR7*!xQ2w$3Lz' meets these criteria, making it the strongest password option provided.

The statement "INSERT INTO Students (Name, Age) VALUES ('Alice', 10);" follows ANSI SQL syntax for inserting a row: it names the target table, lists the columns, and supplies matching values in the VALUES clause. The other choices are invalid in standard SQL: the SET form is a MySQL-only extension, "ADD RECORD" is not an SQL command, and combining UPDATE with ADD and VALUES is syntactically incorrect.

HFS, also known as Hierarchical File System, is the correct answer because it was originally developed by Apple for use in Macintosh computers. NTFS is primarily used by Windows operating systems, and Ext4 is used in Linux environments. FAT32 is an older file system that was used by various operating systems including Windows and DOS but has limitations on file sizes and partition sizes compared to more modern file systems.

The correct answer is 'It maintains a log of file system changes to help recover from crashes'. Journaling ensures that even in the event of a system crash or power failure, the file system can be restored to a consistent state by consulting the log. This reduces the risk of data corruption and loss. The other options, although related to file systems, do not accurately describe the primary benefit of journaling.

Establishing a theory of probable cause allows troubleshooters to focus their efforts on specific potential issues, systematically identify and fix the problem. It involves making an educated guess based on gathered information about what might be causing the issue.

The term 'Looping' is used to define a structure in programming that repeats a sequence of instructions until a specific condition is met. In contrast, 'Branching' refers to the part of the program where decisions are made to execute different parts of code based on certain conditions. 'Sequence' describes the order in which code executes and does not inherently involve repetition. 'Functions' are reusable pieces of code designed to perform a specific task and are not directly related to the concept of repetition.

The Digital Visual Interface (DVI) standard was designed to transmit uncompressed digital video-up to 1920×1200 on single-link or even higher on dual-link-without defining an audio channel. Because HDMI and DisplayPort embed audio alongside video and VGA is limited to lower-quality analog signals, DVI is the appropriate choice when the requirement is high-definition video only.

The correct answer is RJ-45. An RJ-45 connector is the standard for Ethernet networking and is used to connect devices like workstations to network switches. This allows the workstation to communicate with the local network and access shared resources. The other options are incorrect; RJ-11 is typically used for telephone lines, VGA is for analog video displays, and PS/2 is an older legacy connector for keyboards and mice.

Correct. In object-oriented programming, a method is a function associated with an object or class that defines the behaviors an object can perform. A variable is a named storage location for data that can change. A constant is a value that does not change during program execution. An array is a data structure that holds a collection of similar data types.

The correct answer is Document databases because they are well-suited for handling hierarchical data structures due to their document-oriented nature, where each document can contain nested information that represents such one-to-many relationships. They also offer schema flexibility, allowing for easy adjustments and evolution of the data structure as requirements change. Graph databases are excellent for relationships but do not inherently offer the same hierarchical structure and schema flexibility for document storage. Wide-column stores can handle large amounts of data with some flexibility, but are not optimized for complex hierarchical data as in the case of document databases. Key/value stores are highly performant for simple data models but lack the necessary features to efficiently manage complex hierarchical data structures with flexible schema changes.

The purpose of a decision symbol is to split the control flow based on the result of a binary test, so two arrows leave the diamond-one labeled Yes/True and the other No/False. If a problem requires more than two possible outcomes, the flow should generally be decomposed into additional decision symbols rather than adding extra exits to a single diamond.

802.11ac (Wi-Fi 5) operates only in the less-crowded 5 GHz band and introduces wider 80/160 MHz channels, higher-order 256-QAM modulation, more spatial streams and mandatory beamforming. These enhancements raise theoretical throughput to well over 1 Gbps and maintain stronger links at a given distance compared with 802.11g or 802.11n gear. While 802.11n can work on both 2.4 GHz and 5 GHz and offers better performance than 802.11g, its maximum speed (≈450 Mbps) is still far below 802.11ac. Legacy standards such as 802.11a, 802.11b and 802.11g cannot meet modern bandwidth demands.

Backups create additional copies of data on separate media or in the cloud so the information can be restored if the original files are lost, corrupted, or accidentally deleted. Tasks such as running antivirus software, installing software updates, or defragmenting a drive are also important, but none of them produce a separate, recoverable copy of the data. Only backups provide an insurance policy that lets the user retrieve files after a primary data failure.

This process is an example of data-driven business decisions. The company is using data capture and collection to analyze and correlate sales information to make informed decisions about product offerings, exemplifying how data can be turned into actionable insights to support business strategies.

A 64-bit CPU can handle more than 4GB of RAM because it uses larger bit widths for memory addresses, allowing it to access a much larger range of memory locations. A 32-bit CPU is limited to addressing a maximum of 4GB of RAM and therefore cannot effectively utilize memory beyond this limit.

Random-access memory (RAM) is a type of volatile memory that functions as the computer's primary 'working' memory. It is designed for extremely high-speed, low-latency data access, allowing the CPU to retrieve and process data quickly. While solid-state drives (SSDs) are much faster than traditional hard disk drives (HDDs), they are non-volatile storage devices and are significantly slower than RAM. Read-only memory (ROM) is primarily used for firmware and is not designed for the high-speed read/write operations that RAM performs.

A purchase receipt serves as a formal acknowledgment of the transaction that has taken place. It provides proof that the company acquired the software license, which is essential for non-repudiation. A user manual or the software itself does not serve as proof of purchase. An assurance from the department head might indicate the purchase happened, but unlike a receipt, it's not a solid piece of evidence that auditors typically rely on.