Questions and Answers
What is a primary advantage of using a Local Area Network (LAN)?
Which characteristic defines a Metropolitan Area Network (MAN)?
What is one of the main disadvantages of a Local Area Network (LAN)?
What is one advantage of a Metropolitan Area Network (MAN) compared to a Wide Area Network (WAN)?
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Which of the following is NOT a feature of a Metropolitan Area Network (MAN)?
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In the context of LANs and MANs, what common issue relates to data security?
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Which of these statements about the conversion from LAN to MAN is true?
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What is a significant drawback of a Metropolitan Area Network (MAN)?
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Which of the following phases involves a feasibility analysis before project investment?
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What is the primary purpose of software in relation to hardware?
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In which phase of software development do programmers create a coding tasks list?
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What does the term 'software' refer to in a computer system?
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What is typically the first step in the software development process?
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Which phase focuses on merging all individual components before final testing?
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In software development, what does the term 'release' imply?
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What stage is critical for establishing whether the software project is viable?
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What is a primary advantage of Zigbee networking?
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Which aspect limits the Zigbee star network's effectiveness?
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Which of the following describes a disadvantage of Zigbee networking?
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What is the range covered by Zigbee communication?
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Which of the following is NOT a benefit of Wi-Fi networking?
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What is a key characteristic of Wi-Fi technology?
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What does Wi-Fi stand for?
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What is a significant disadvantage mentioned about Zigbee?
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What is a primary characteristic that distinguishes computer worms from traditional viruses?
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Which type of malware is specifically designed to give hackers remote access to a target system?
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Which of the following best describes the main function of spyware?
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What is a defining feature of adware compared to other types of malware?
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What type of virus targets the File Allocation Table of a hard drive?
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Which type of malware poses the highest risk to essential hardware components?
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Which of the following is NOT a behavior typically associated with spyware?
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What is the primary purpose of an anti-virus program?
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Which of the following types of malware does not replicate itself once installed?
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How does a firewall protect a computer?
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Which statement accurately describes spam?
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What is a common feature of anti-malware programs?
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Which of the following is NOT typically associated with anti-spyware programs?
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What happens when an anti-virus program is not updated regularly?
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Which of the following is an example of an anti-spyware program?
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What is a significant risk associated with spam emails?
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Study Notes
Software
- Software consists of instructions, data, or programs that operate a computer and perform specific tasks.
- It differentiates from hardware, the physical components of a computer.
- Software includes applications, scripts, and programs used on devices.
Software Development Process
- Brainstorming: Involves generating ideas for software applications.
- Business Analysis: Evaluates market demand and project feasibility.
- Design: Planning the software architecture and user interface.
- Programming: Coding by developers based on specifications.
- Integration: Merging different components into a unified system.
- Quality Assurance: Testing the software for defects and ensuring it meets standards.
- Release: Launching the software for end-users.
Local Area Network (LAN)
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Pros:
- Facilitates resource sharing and internet access.
- Enhances communication efficiency.
- Improves data security.
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Cons:
- Vulnerable to data security issues.
- Distance limitations affect performance.
- Server failures impact the entire network.
Metropolitan Area Network (MAN)
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Covers larger geographic areas than LAN, typically a city or campus.
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Pros:
- Cost-effective for local communications.
- Higher speed than WAN.
- Supports easy transition from LAN to MAN.
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Cons:
- Management complexity is high.
- Subject to hacker attacks.
- High wiring requirements and lower data rates.
Zigbee Networking
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Functions well for short-range communication (10-100 meters).
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Pros:
- Supports multiple network topologies.
- Efficient power usage with low duty cycle.
- Strong encryption and collision avoidance.
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Cons:
- Licensing costs around $3,500.
- Limited star network support.
- Not suitable for high data rate applications.
Wi-Fi Wireless Networking
- Wi-Fi allows devices to communicate over a local area without cables.
- Involves a wireless adaptor converting data into radio signals.
- Pros:
- High efficiency and flexibility in networking.
- Cost-effective and installation-friendly.
Malware Types
- Worms: Software that replicates itself on other computers without user intervention; examples include Sasser, Blaster, and Conficker worms.
- Trojan Horses: Malicious software disguised as useful programs, facilitating unauthorized access to computer systems.
- Spyware: Gathers covert information on users by transmitting data from their devices without consent.
- Adware: Delivers advertisements automatically, often bundled with free software.
- Spam: Uninvited emails that can spread viruses and trojans.
Anti-Malware Programs
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Anti-virus Programs: Software designed to detect and neutralize malware threats, requiring constant updating to combat new threats.
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Examples: Norton, AVG, Kaspersky, McAfee, and Avast.
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Anti-spyware Programs: Target the detection and removal of unwanted spyware; examples include Spyware Doctor and AVG Anti-spyware.
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Firewalls: Protect networks by blocking unauthorized access and incoming attacks over the internet or shared networks.
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Description
This quiz covers the various types of software relevant to Computer Science and Information Technology. It is designed for students in the 6th semester and focuses on the foundational knowledge of software classifications and their applications. Test your understanding and knowledge of different software types.