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NEW QUESTION # 76
A programmer is working with Perl. Which type of language is this?
Answer: C
Explanation:
Perl is generally categorized as an interpreted language. In Information Technology, Perl is a scripting language that is commonly executed by the Perl interpreter, which reads the source code and runs it without requiring a separate compilation step that produces a standalone executable in the typical compiled-language workflow. This makes Perl useful for tasks such as text processing, automation, system administration scripting, and rapid prototyping. Interpreted execution supports quick testing and modification because developers can run scripts immediately after editing. While some interpreted languages can be compiled into intermediate bytecode or packaged into executables, the standard and most widely taught model for Perl is interpreter-based execution. Assembly language is a low-level mnemonic representation of machine instructions, and machine language is binary code executed directly by the CPU. Perl does not fit those categories. Compared to compiled languages like C, Perl emphasizes flexibility and scripting convenience.
Therefore, the correct classification for Perl in this context is interpreted language.
NEW QUESTION # 77
Which method is frequently used to protect software?
Answer: C
Explanation:
Software protection involves safeguarding software applications from unauthorized use, distribution, or reproduction. Various methods are employed to protect software, but one of the most frequently used approaches is through copyrights. Here's why:
1.Copyrights:
oDefinition: Copyright protection grants exclusive rights to the creator or owner of the software. It prevents others from copying, distributing, or using the software without permission.
oHow It Works:
When a software developer creates an original program, they automatically hold the copyright to it.
The copyright holder can specify licensing terms and conditions, allowing or restricting certain uses.
Users must comply with these terms to legally use the software.
oBenefits:
Legal Protection: Copyright laws provide legal recourse against infringement.
Revenue Control: Developers can license their software and generate revenue.
Innovation Encouragement: Copyright protection encourages innovation by rewarding creators.
oReferences: 12
2.Other Methods:
oGNU General Public License (GPL): GPL is an open-source license that allows users to freely use, modify, and distribute software. However, it requires derivative works to be open-source as well.
oFair Use: Fair use is a legal doctrine that permits limited use of copyrighted material without permission for purposes such as criticism, commentary, or education.
oTrademarks: Trademarks protect brand names, logos, and symbols associated with software. While not directly related to software protection, trademarks play a role in branding and identity.
In summary, while other methods exist, copyrights remain a fundamental and frequently used approach to protect software from unauthorized use and ensure developers' rights are respected.
References:
1.CrowdStrike: Software Security
2.Baeldung: Methods to Protect Software From Piracy
3.Microcosm: What is software protection?
NEW QUESTION # 78
What type of a system requirement involves preventing unauthorized access to data?
Answer: D
Explanation:
*Unauthorized access refers to gaining entry or access to a system, physical or electronic, without the permission of the owner or administrator.
*Security is the type of system requirement that involves preventing unauthorized access to data.
*Security measures include:
oAuthentication: Verifying user identity.
oEncryption: Protecting data from unauthorized viewing.
oAccess controls: Limiting who can access specific resources.
oFirewalls: Filtering network traffic.
*Ensuring security helps safeguard sensitive information and maintain data integrity.
References:
1.Unauthorized Access: Risks, Examples, and 6 Defensive Measures
2.How to Prevent Unauthorized Access: 10 Best Practices
3.Threat Picture: Unauthorized Access Prevention
4.PMC: Protecting Information with Cybersecurity
5.Cyberpedia: Unauthorized Data Access
1: Unauthorized Access: Risks, Examples, and 6 Defensive Measures 2: How to Prevent Unauthorized Access: 10 Best Practices 3: Threat Picture: Unauthorized Access Prevention 4: PMC: Protecting Information with Cybersecurity 5: Cyberpedia: Unauthorized Data Access
NEW QUESTION # 79
What is the correct order of project phases?
Answer: D
Explanation:
1.Initiation
2.Planning
3.Executing
4.Monitoring and Controlling
5.Closing
During the Initiation Phase, the project's vague brief is clarified, and key success criteria are defined. It involves project kickoff meetings, understanding project requirements, and defining scope, cost, and resources12.
References 2. The Digital Project Manager 3. Visme
NEW QUESTION # 80
Which type of communications media uses light waves to transmit data?
Answer: C
Explanation:
Fiber optic communication uses light waves to transmit data. Here's how it works:
1.Fiber Optic Cable Structure:
oA fiber optic cable consists of a core made of glass or plastic, surrounded by a cladding layer.
oThe core acts as a light guide, allowing light to travel through it by total internal reflection.
oThe cladding layer ensures that the light remains within the core.
2.Light Propagation:
oWhen data needs to be transmitted, a light source (usually a laser or LED) sends pulses of light into the fiber.
oThe light travels down the core, bouncing off the cladding due to total internal reflection.
oAs a result, the light signal remains confined within the core.
3.Advantages of Fiber Optics:
oHigh Bandwidth: Fiber optics can transmit large amounts of data quickly.
oLow Attenuation: Light signals experience minimal loss over long distances.
oImmune to Electromagnetic Interference: Unlike copper cables, fiber optics are not affected by electromagnetic fields.
oSecure: It's difficult to tap into fiber optic cables without detection.
4.Applications:
oInternet Backbone: Fiber optics form the backbone of the global internet, connecting continents.
oTelecommunications: Used for long-distance phone calls and high-speed internet.
oData Centers: Within data centers, fiber optics connect servers and storage devices.
oCable TV: Many cable TV networks use fiber optics for signal distribution.
References:
1.Li-Fi - Wikipedia
2.Types of Transmission Media - GeeksforGeeks
3.Welcome, Li-Fi: Technology uses light to transmit data
NEW QUESTION # 81
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