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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Software and Operating Systems | 20% | - OS fundamentals: Windows, macOS, Linux - File management, installation, and updates - Types of software: system vs application |
| Topic 2: Computer Hardware | 20% | - Core components: CPU, memory, storage - Input/output devices and peripherals - System architecture and performance factors |
| Topic 3: Networking Concepts | 20% | - Internet, cloud, and remote access technologies - Network types, topologies, and protocols - TCP/IP, IP addressing, and connectivity |
| Topic 4: Data Management and Business IT | 10% | - Databases and data storage concepts - IT infrastructure, continuity, and support |
| Topic 5: Information Security | 15% | - Security controls: access, encryption, backups - Data protection and compliance basics - Threats, vulnerabilities, and risks |
| Topic 6: 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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NEW QUESTION # 12
Based on the instructions on the package, a frozen pizza should be baked for 18 minutes at 400°F. Which term describes the statement, "The pizza looks done after 16 minutes, so it should be taken out," based on the data- information-knowledge-wisdom DIKW hierarchy?
Answer: C
Explanation:
In the DIKW hierarchy, wisdom is the level that reflects judgment about what should be done in a specific situation. The package instruction, bake for 18 minutes at 400°F, is information because it is organized and contextualized guidance. The statement, "The pizza looks done after 16 minutes, so it should be taken out," goes beyond repeating the instruction. It uses observation and judgment to decide the best action in context.
This is characteristic of wisdom because it applies experience and situational awareness to choose an appropriate decision, even when it differs from the standard guideline. Knowledge would involve understanding how cooking time can vary based on oven performance, pizza thickness, and placement in the oven, and being able to apply techniques to manage those variables. Wisdom is the decision to act correctly in the moment, balancing the instructions with real evidence, such as doneness appearance, smell, or risk of burning. Therefore, this statement fits wisdom because it selects the right action based on contextual judgment.
NEW QUESTION # 13
What is a function of a proxy server?
Answer: C
Explanation:
A proxy server serves several essential functions in network communication:
1.Security and Privacy:
oA proxy server acts as a gateway between the user's device and the internet. When a user sends a request (e.
g., accessing a website), it first goes through the proxy server.
oThe proxy server hides the user's IP address, making it difficult for external entities to directly trace the user' s location or identity.
oBy acting as an intermediary, the proxy server provides an additional layer of security, protecting the internal network from potential threats and attacks.
2.Content Filtering and Access Control:
oOrganizations often use proxy servers to control internet access for their employees. The proxy can filter requests based on predefined rules.
oFor example, an organization might block access to certain websites (e.g., social media, gambling sites) or restrict access during work hours.
oContent filtering helps maintain productivity and prevent unauthorized access to inappropriate or harmful content.
3.Caching and Acceleration:
oProxy servers can cache frequently accessed web pages, images, and files. When a user requests the same content again, the proxy serves it from its cache.
oCaching reduces the load on the internet connection and speeds up access to commonly visited sites.
oIt also helps save bandwidth by minimizing redundant data transfers.
4.Load Balancing:
oIn large networks, multiple proxy servers can distribute incoming requests to different web servers. This load balancing ensures efficient utilization of resources.
oBy evenly distributing traffic, proxy servers prevent any single server from becoming overwhelmed.
5.Anonymity and Geolocation Bypass:
oSome users use proxy servers to hide their real IP addresses. This anonymity can be useful for privacy reasons or to bypass geolocation restrictions.
oFor example, a user in one country can use a proxy server located in another country to access region- restricted content.
References
1.SoftwareLab: What is a Proxy Server? Types & Examples You Need to Know
2.Kinsta: What Is a Proxy Server Used For? (And How Does It Work?)
3.Fortinet: What is a Proxy Server? Definition, Uses & More
4.KnowledgeHut: What is Proxy Server? Types, Functions & Use Cases
5.Varonis: What is a Proxy Server and How Does it Work?
NEW QUESTION # 14
What is a common physical location for data storage that needs to be off-site?
Answer: D
Explanation:
Salt mines are a well-known physical location used for off-site data storage, especially for long-term archival backups. In Information Technology and records management, underground salt mines offer environmental conditions that help preserve storage media. They are typically cool, dry, and stable, which reduces humidity- related damage, corrosion, and temperature fluctuations that can degrade tapes, disks, and other archival media. Their underground location can also provide protection from many surface-level threats such as storms, fires, and some types of physical intrusions. Because off-site storage is meant to protect data from disasters affecting the primary site, a specialized facility like a salt mine can serve as a secure and controlled environment for storing backup media. The other options are not standard "common physical locations" described in many IT disaster recovery materials. Cold or warm climates are vague, and coastlands are generally higher risk due to storms and flooding. Therefore, salt mines are a common physical location used for off-site storage.
NEW QUESTION # 15
An IT department employee is identifying the Boolean data in a system. What is one example of this type of data?
Answer: C
Explanation:
Boolean data represents a logical value with only two possible states, typically true or false. In Information Technology, Boolean types are foundational for conditions, comparisons, control flow, and database fields that store yes-or-no style information. The example, "Whether a number is positive or not," fits Boolean data because the statement can be evaluated as true if the number is greater than zero, or false otherwise. This two- state characteristic is exactly what defines Boolean logic. The other options describe different data types: the first letter of a last name is a character, a full last name is a character string, and the price of gas in dollars and cents is numeric with decimals, typically stored as a floating-point or fixed-point decimal type. Boolean fields are widely used in systems for flags such as active or inactive, approved or not approved, and eligible or not eligible. Therefore, the correct example of Boolean data is whether a number is positive or not.
NEW QUESTION # 16
What does a modem do?
Answer: B
Explanation:
A modem serves as the connection between the customer network and the internet service provider. In Information Technology networking, modem stands for modulator-demodulator. Traditionally, it converts outgoing digital data from a computer or router into a form suitable for transmission over the provider's communication medium and converts incoming signals back into digital data. Depending on the service type, this may involve cable, DSL, fiber, or cellular technologies, each using specific signaling methods. The modem typically terminates the ISP line and hands off connectivity to a router or directly to a computer.
Option A describes routing or switching behavior rather than a modem function. Option B describes a server that offers hosted services. Option D describes a firewall, which protects a trusted network by filtering traffic from untrusted networks. Since the essential purpose of a modem is enabling communication between the customer premises equipment and the ISP network, the correct choice is that it serves as the connection between the customer network and the internet service provider. Therefore, the correct answer is option C.
NEW QUESTION # 17
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