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| Section | Weight | Objectives |
|---|---|---|
| Networking Concepts | 20% | - TCP/IP, IP addressing, and connectivity - Internet, cloud, and remote access technologies - Network types, topologies, and protocols |
| Computer Hardware | 20% | - System architecture and performance factors - Input/output devices and peripherals - Core components: CPU, memory, storage |
| Data Management and Business IT | 10% | - IT infrastructure, continuity, and support - Databases and data storage concepts |
| Software and Operating Systems | 20% | - File management, installation, and updates - Types of software: system vs application - OS fundamentals: Windows, macOS, Linux |
| Information Security | 15% | - Threats, vulnerabilities, and risks - Security controls: access, encryption, backups - Data protection and compliance basics |
| Introduction to IT as a Discipline | 15% | - Ethics and professional responsibilities in IT - IT department functions and business support - IT roles and career paths |
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83. Frage
Which data type should be used to calculate 90% of the retail price of an item?
Antwort: D
Begründung:
To calculate a percentage of a price, you need a data type that can handle decimal values, as the result may not be a whole number. Here's why a floating-point data type is appropriate:
1.Precision: Floating-point data types are designed to handle numbers that have a fractional part, which is essential for representing percentages accurately.
2.Calculation: When calculating 90% of a retail price, you multiply the price by 0.9. This operation requires a data type that can represent both the price and the resulting product with decimal precision.
3.Storage: Floating-point types can store a wide range of values with precision, making them suitable for financial calculations where the exact amount matters.
The other options are not suitable for the following reasons:
*A. Boolean: Can only represent two values, true or false.
*C. Auto-number: Typically used for unique identifiers and cannot represent fractional values.
*D. String: While it can represent a number as text, it is not suitable for calculations without conversion, which is inefficient and error-prone.
References: The decision to use a floating-point data type for percentage calculations is supported by best practices in programming and database design, as discussed in various programming forums and documentation123. These sources recommend using decimal or floating-point types for financial calculations to ensure accuracy and avoid errors that can arise from binary floating-point representations2.
84. Frage
Which operating system component schedules when each application runs?
Antwort: B
Begründung:
The kernel schedules when each application runs. In operating systems, scheduling is the process of deciding which program or process gets access to the CPU and for how long. This is essential for multitasking, where many applications appear to run at the same time. The kernel contains the process scheduler, which manages ready queues, assigns CPU time slices, handles context switching, and enforces priority rules so that system tasks and user applications run smoothly. In Information Technology, this function is part of core resource management, alongside memory management and device coordination. The user interface controls how the system is presented to users, such as command-line or graphical interfaces. The file manager focuses on storing, retrieving, and organizing files and folders. Drivers translate operating system commands into device- specific actions for hardware such as keyboards, printers, and disk controllers. Since scheduling is a core OS responsibility handled internally, the correct component is the kernel.
85. Frage
Which hardware component stores instructions for critical system activities?
Antwort: B
Begründung:
Read-only memory, or ROM, stores instructions for critical system activities, especially the firmware used during startup. In Information Technology fundamentals, ROM contains non-volatile instructions that remain available even when the computer is powered off. These instructions typically include the system firmware responsible for initializing hardware, performing basic checks, and starting the boot process that loads the operating system. Because ROM is designed to retain its contents without power, it is appropriate for storing essential routines that the computer must access immediately when it turns on. RAM is volatile and loses contents when power is removed, so it cannot reliably store permanent startup instructions. The CPU executes instructions but does not store firmware permanently. The GPU is a specialized processor for graphics and parallel workloads and is not responsible for storing core boot instructions. Although modern systems often use flash-based firmware rather than older fixed ROM chips, this is still categorized as ROM or ROM-like non-volatile firmware storage in many IT documents. Therefore, the correct component is ROM.
86. Frage
What is a component of IT infrastructure?
Antwort: A
Begründung:
*Verified Answer: A component of IT infrastructure is networks.
*Explanation: Networks play a crucial role in connecting various elements of an IT system, enabling communication and data exchange.
* Therefore, the correct answer is A. Networks.
87. Frage
Which criterion is used to assess off-site storage solutions?
Antwort: C
Begründung:
Security is a primary criterion used to assess off-site storage solutions because stored backups must be protected against unauthorized access, theft, tampering, and data leakage. In Information Technology disaster recovery and business continuity planning, off-site backups often contain sensitive business records, customer information, and proprietary data. Therefore, evaluation typically includes physical security controls such as guarded facilities, access logs, surveillance, and secure transport, as well as logical security controls such as encryption, key management, and strong authentication. While redundancy and capacity can matter, security is often treated as a non-negotiable requirement because a backup that is exposed or altered can create major legal, financial, and operational risks. Device media refers to the type of storage, such as tape or disk, but it is usually considered a design choice rather than the main assessment criterion. Security also supports compliance requirements and helps ensure data integrity, so restored systems can be trusted. Therefore, the correct criterion for assessing off-site storage solutions is security.
88. Frage
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