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Questions and Answers
What is the primary function of a router in a network?
What is the primary function of a router in a network?
Which database model organizes data in a tree-like structure?
Which database model organizes data in a tree-like structure?
What role does a firewall play in network security?
What role does a firewall play in network security?
What does HTTP stand for?
What does HTTP stand for?
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What is the purpose of normalization in databases?
What is the purpose of normalization in databases?
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Which statement correctly describes a star topology in networking?
Which statement correctly describes a star topology in networking?
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What is a foreign key in a relational database?
What is a foreign key in a relational database?
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Which of the following protocols is used for sending emails?
Which of the following protocols is used for sending emails?
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What challenge is associated with data redundancy in databases?
What challenge is associated with data redundancy in databases?
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What is the primary purpose of a Bridge in networking?
What is the primary purpose of a Bridge in networking?
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Which phase of the Software Development Life Cycle involves gathering system requirements?
Which phase of the Software Development Life Cycle involves gathering system requirements?
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What characterizes a Static Website?
What characterizes a Static Website?
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What does the term Scope Creep refer to in project management?
What does the term Scope Creep refer to in project management?
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In software development, what is the primary focus of Agile Development?
In software development, what is the primary focus of Agile Development?
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Which method describes transitioning from an old system to a new one while both operate simultaneously?
Which method describes transitioning from an old system to a new one while both operate simultaneously?
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What is the main role of a Web Server?
What is the main role of a Web Server?
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What describes a Dynamic Website?
What describes a Dynamic Website?
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What is predictive development primarily characterized by?
What is predictive development primarily characterized by?
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What is the primary purpose of JavaScript?
What is the primary purpose of JavaScript?
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What does a Gantt Chart visually represent?
What does a Gantt Chart visually represent?
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What is the function of an IP Address?
What is the function of an IP Address?
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Which statement best describes penetration testing?
Which statement best describes penetration testing?
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What is the base of the binary numeral system?
What is the base of the binary numeral system?
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How many symbols does the decimal system utilize?
How many symbols does the decimal system utilize?
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In the binary system, what does '1' typically represent?
In the binary system, what does '1' typically represent?
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How do you convert a binary number to decimal?
How do you convert a binary number to decimal?
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What is one characteristic of binary coding's suitability for electronic circuits?
What is one characteristic of binary coding's suitability for electronic circuits?
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What is the result of binary representation derived from an 8-bit binary number?
What is the result of binary representation derived from an 8-bit binary number?
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Which binary number correctly represents the decimal number 11?
Which binary number correctly represents the decimal number 11?
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What is the place value of the rightmost bit in the binary number 1011_2?
What is the place value of the rightmost bit in the binary number 1011_2?
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How do you convert the decimal number 13 into binary?
How do you convert the decimal number 13 into binary?
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What is the binary result of the addition $101_2 + 110_2$?
What is the binary result of the addition $101_2 + 110_2$?
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What is the conversion of the binary number 1101_2 to decimal?
What is the conversion of the binary number 1101_2 to decimal?
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When subtracting in binary, what do you do when a bit being subtracted is larger than the one it is being subtracted from?
When subtracting in binary, what do you do when a bit being subtracted is larger than the one it is being subtracted from?
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Which of the following represents the correct binary multiplication of $101_2$ and $11_2$?
Which of the following represents the correct binary multiplication of $101_2$ and $11_2$?
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What is the value of the second bit in the binary number 1011_2 when considering powers of 2?
What is the value of the second bit in the binary number 1011_2 when considering powers of 2?
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In the process of converting from decimal to binary, what is the outcome of the first division step for the number 13?
In the process of converting from decimal to binary, what is the outcome of the first division step for the number 13?
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If the binary number 101_2 is added to the binary number 110_2, what binary method is used to represent the result?
If the binary number 101_2 is added to the binary number 110_2, what binary method is used to represent the result?
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Study Notes
Networking Concepts
- Router: Connects multiple networks, directing data packets to destinations.
- Star Topology: Devices connect to a central hub/switch. Network failure of one device doesn't affect others, but hub failure disrupts the whole network.
- Firewall: Security system monitoring network traffic (incoming/outgoing), based on security rules.
- HTTP: Protocol for transmitting web pages. HTTPS is its secure version, encrypting data.
- Repeater: Network device amplifying and retransmitting signals, extending network range.
- Modem: Converts digital data to analog signals for transmission over phone lines (and vice versa), enabling internet access.
- Ring Topology: Devices form a ring, data flows in one direction. Efficient transmission, but failure in the ring disrupts the entire network.
- SMTP (Simple Mail Transfer Protocol): Protocol for sending and receiving email over the internet.
- Bridge: Device filtering and forwarding traffic between network segments, improving performance by dividing traffic.
Database Concepts
- Database: Organized collection of data stored electronically.
- Relational Database Model: Stores data in tables; relationships between data items through keys.
- SQL (Structured Query Language): Standardized language for managing/manipulating relational databases (e.g., querying, updating, deleting).
- Oracle: Popular database management system using the relational model to store data.
- Foreign Key: Field identifying a row in another table (establishes relationships between tables).
- Hierarchical Database Model: Organizes data in a tree-like structure. Each record has one parent, potentially many children.
- Data Redundancy: Unnecessary duplication of data within a database, causing storage inefficiency and maintenance issues.
- Normalization: Process of organizing a database to reduce redundancy and improve data integrity. Divides large tables into smaller, manageable tables.
- RDBMS (Relational Database Management System): System for managing relational databases; data stored in tables related to each other using keys.
Software Development Concepts
- SDLC (Software Development Life Cycle): Structured approach to software development (planning, analysis, design, implementation, testing, maintenance).
- Analysis Phase: Gathering/analyzing system requirements to ensure the software meets user needs.
- Scope Creep: Project scope expanding beyond original objectives (e.g., adding features) without proper control.
- Predictive Development: Well-defined linear sequence (e.g., Waterfall model), sequencing.
- Agile Development: Iterative/collaborative approach to software development, where requirements and solutions evolve.
- DevOps: Combines development and operations practices for faster software development lifecycle with continuous delivery of high-quality software.
- Gantt Chart: Project management tool visually representing project tasks/activities on a timeline.
- Penetration Testing: Security testing method simulating attacks to identify vulnerabilities.
- Parallel Conversion: Transitioning from an old system to a new one while both systems operate simultaneously.
Binary Representation
- Binary System: Base-2 numeral system using 0 and 1 to represent values. Electronic circuits represent 1 as 'on' and 0 as 'off'.
- Binary Digits (Bits): 0 or 1; fundamental unit of computer data.
- Place Value: In binary, each position represents a power of 2
- Converting Binary to Decimal: Multiply each bit by its corresponding power of 2 and then sum the results.
- Converting Decimal to Binary: Divide the decimal number repeatedly by 2, recording the remainders to form the binary equivalent.
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Description
Test your knowledge on key networking concepts including routers, topologies, and protocols. This quiz covers important devices and systems that facilitate communication over networks. Perfect for students learning about network fundamentals.
