Network Design Principles
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Questions and Answers

What type of cable is generally recommended for workstations located in a small office?

  • Twisted-pair cable (correct)
  • Coaxial cable
  • Shielded twisted-pair cable
  • Fiber-optic cable

Which element is NOT typically included in a final network design proposal?

  • Executive summary
  • Market analysis (correct)
  • Implementation plan
  • Project budget

What is the purpose of a Request for Proposal (RFP) from a client?

  • To provide a format for the final network design (correct)
  • To outline new technology advancements
  • To list potential cybersecurity threats
  • To detail existing network issues

Which of the following is considered a task during the implementation phase of a network project according to the timeline?

<p>Internet connectivity (D)</p> Signup and view all the answers

In the context of network design, which component is essential for understanding the current capabilities and limitations of an existing setup?

<p>Current state of the network (A)</p> Signup and view all the answers

What is one of the primary functions of the distribution layer in an enterprise network?

<p>Packet manipulation (B)</p> Signup and view all the answers

Which of the following is a characteristic of the access layer design in a corporate network?

<p>Direct connection for local end users (D)</p> Signup and view all the answers

When planning a network, which requirement is crucial to consider for optimal performance?

<p>Amount of network traffic (B)</p> Signup and view all the answers

What does the term 'micro segmentation' refer to in the context of an access layer?

<p>Dividing large networks into smaller, manageable sub-networks (C)</p> Signup and view all the answers

What is a common goal for most organizations when designing a network?

<p>To install an economical computer network for up-to-date communication technology. (C)</p> Signup and view all the answers

What is a key technical goal in an enterprise LAN/WAN design?

<p>Ensuring security, scalability, availability, and performance. (C)</p> Signup and view all the answers

Which of the following factors does NOT need to be considered when defining network requirements?

<p>Color scheme for network layout (A)</p> Signup and view all the answers

Which factor is NOT considered when designing a network?

<p>Temperature of the locations. (A)</p> Signup and view all the answers

Before recommending a network plan, what should be done regarding the network's physical layout?

<p>Map all elements and their relationships (C)</p> Signup and view all the answers

In a non-campus environment, what function does the access layer serve?

<p>Grants remote sites access to the corporate network (D)</p> Signup and view all the answers

What is a drawback of a peer-to-peer network?

<p>Potential loss of resource accessibility if a user's computer is turned off. (C)</p> Signup and view all the answers

What is one function associated with the distribution layer regarding network performance?

<p>VLAN routing (D)</p> Signup and view all the answers

In a server-based network, how are resources managed?

<p>Resources are typically centralized and managed by servers. (B)</p> Signup and view all the answers

What happens if a user with a printer in a peer-to-peer network turns off their computer?

<p>No one else will be able to use the printer. (C)</p> Signup and view all the answers

Which of the following represents a significant advantage of server-based networks?

<p>Ability to easily adjust size in response to network load. (D)</p> Signup and view all the answers

In a peer-to-peer network, what is typically lacking in terms of security?

<p>Administrative oversight. (A)</p> Signup and view all the answers

What is one key purpose of the core layer in a hierarchical network design?

<p>To serve as the high-speed backbone of the network. (A)</p> Signup and view all the answers

Which of the following elements is NOT typically included in the access layer of a hierarchical network design?

<p>High-end switches (D)</p> Signup and view all the answers

What does modularity in network design allow for?

<p>Replicating elements as the network grows. (B)</p> Signup and view all the answers

Which function is primarily associated with the distribution layer in a hierarchical network?

<p>To implement network policies and define boundaries. (C)</p> Signup and view all the answers

Which of the following best describes the role of internetworking devices in a network topology?

<p>To facilitate interconnection points and manage data traffic. (C)</p> Signup and view all the answers

What main characteristic does a three-layered hierarchical network model provide?

<p>High scalability and focused functionality for the network. (D)</p> Signup and view all the answers

During a software survey, which of the following information is NOT required to be gathered?

<p>Network topology type (B)</p> Signup and view all the answers

In what way does the distribution layer help define the hierarchical network structure?

<p>It determines the interconnection points and policies. (B)</p> Signup and view all the answers

What is a key characteristic of a hybrid network?

<p>Access to a file server requires specific permissions. (D)</p> Signup and view all the answers

Which of the following is NOT a category to survey when taking inventory for a network?

<p>Internet speed (A)</p> Signup and view all the answers

What must be installed to upgrade from a peer-to-peer network to a server-based network?

<p>Server operating system (D)</p> Signup and view all the answers

When conducting a hardware survey, which information is NOT typically required?

<p>Number of network users (B)</p> Signup and view all the answers

What is a benefit of taking inventory before setting up a network?

<p>It provides insight into hardware and software already available. (C)</p> Signup and view all the answers

Which component is NOT typically assessed during a hardware survey?

<p>Network performance metrics (D)</p> Signup and view all the answers

What type of network can limit future upgrades if outdated operating systems are in use?

<p>Peer-to-peer network (D)</p> Signup and view all the answers

Why is it important to document free slots in a hardware survey?

<p>To determine if upgrades are possible in the future. (B)</p> Signup and view all the answers

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Flashcards

Network Segregation

Dividing a server-based network into segments based on organizational needs.

Hybrid Network

A network combining features of both peer-to-peer and server-based networks.

Network Inventory

Evaluating existing hardware and software before setting up a network.

Hardware Survey

Listing all computer hardware components for each device on the network.

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Processor Specifications

Identifying the type of processor and its speed in each computer.

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Memory (RAM)

The amount of RAM installed in each computer.

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Hard Drive Information

The size and manufacturer of each hard drive installed.

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Other Drive Details

Details about any other storage devices connected to computers, such as CD drives or removable drives.

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Network Design: Peer-to-Peer vs. Server-Based

The initial decision is to choose a network design model, either peer-to-peer or server-based.

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Peer-to-Peer Network

In a peer-to-peer network, each connected computer acts as both a client and a server, sharing resources directly with other computers.

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Server-Based Network

In a server-based network, a central server manages resources and provides services to connected computers (clients).

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Peer-to-Peer Network Drawback: Resource Availability

When one computer in a peer-to-peer network is turned off, resources connected to that computer become unavailable to others.

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Peer-to-Peer Network Drawback: Performance

In a peer-to-peer network, if a computer is busy or experiencing issues, it can disrupt network access for other computers.

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Server-Based Network Advantage: Resource Availability

In a server-based network, resources are central and managed by dedicated servers, ensuring consistent availability.

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Server-Based Network Advantage: Security

Server-based networks offer enhanced security features and centralized administration, providing better control and protection.

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Server-Based Network Advantage: Scalability

Server-based networks are easily scalable, meaning their size and capacity can be adjusted to meet growing demands.

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Hierarchical Network Model

A network design based on three distinct levels: Core, Distribution, and Access.

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Core Layer

The foundation of the network, typically powered by high-speed routers and switches for optimal performance and reliability.

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Distribution Layer

Connecting the Core layer to the Access layer, ensuring controlled traffic flow and enforcing network policies.

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Access Layer

Connecting users to the network through hubs, switches or other devices.

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Network Topology

A visual representation showing how network devices are connected to each other.

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Logical Network Topology

A network topology focusing on logical relationships between network elements.

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Software Survey

A process that involves gathering detailed information about existing software used within a network.

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Telecommunications Equipment Survey

A comprehensive examination of the telecommunications equipment used within an organization, including types of cables, modems and network interface cards.

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Network media choice

When planning a network, consider factors like location and environment, as these may influence the type of cabling required. For example, in a factory, robust fiber-optic cables are often preferred, while a small office may suffice with simpler twisted-pair cables.

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Gantt chart

A Gantt chart is a tool for visualizing project timelines. It breaks down activities into specific tasks, assigns a start and end date to each task, and displays their progress visually.

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Request for Proposal (RFP)

A Request for Proposal (RFP) is a document issued by a client outlining the requirements and specifications for a project. It provides a framework for bidders to submit proposals.

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Final network design document

The final network design document is a vital part of any project. It summarizes all the key aspects of the plan, including business and technical requirements, existing network infrastructure, logical and physical network layout, and the budget.

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Shared Bandwidth

Network design element where bandwidth is shared among users.

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Switched Bandwidth

Network design element where users have dedicated network resources providing better performance.

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MAC Layer Filtering

Network design element that controls access based on MAC addresses to enhance security.

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Micro Segmentation

Network design element that isolates network traffic within smaller segments, improving security and performance.

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Physical Network Layout

The process of outlining the physical layout of network components, considering their location and relationships.

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Study Notes

Network Design

  • Designing a network for an organization requires identifying organizational objectives and network goals.
  • A general network goal for most organizations is installing an economical network, incorporating modern communication technologies, and allowing for future expansion.
  • Specific company goals may include sharing information and printers between computers, adding more computers, or providing internet access to specific groups.
  • Important, technical goals are scalability, availability, performance, and security.

Peer-to-Peer vs. Server-Based Networks

  • The first design decision is whether the network should be peer-to-peer or server-based.
  • Factors to consider include network size, security level, type of business, administrative support, network traffic, user needs, and budget.
  • Peer-to-peer networks have drawbacks like challenges in sharing resources when computers are turned off or malfunctioning, and limited security. User responsibility for security and data is prevalent.

Server-Based Networks

  • In server-based networks, resources are centralized.
  • A server, such as a print server, manages resources like printers, while another server manages files.
  • Server-based networks are scalable and resources are generally available.
  • Security is enhanced in server-based networks by managing accounts and permissions.

Hybrid Networks

  • Hybrid networks combine peer-to-peer and server-based network approaches.
  • The basic network can be peer-to-peer with dedicated servers, like a file server.
  • File server access requires user accounts and permissions, whereas access to other computers is shared.

Network Inventory

  • Taking an inventory of existing hardware and software is crucial for planning future network expansion.
  • The inventory includes hardware (computers, peripherals, cabling, etc.) and software (programs and versions).
  • Inventory helps in assessing the existing network setup to align with the organizational needs.

Hardware Survey

  • A hardware inventory needs to include the make and model of each computer and its components (proccessor, memory, hard drive).
  • Information on peripherals, video cards, and other installed drives is also crucial.
  • Free slots for expansion cards need to be accounted for in surveys.

Software Survey

  • Gathering software information, such as programs, versions, installation media, and licensing agreements, is essential for a complete inventory.

Telecommunications Equipment Survey

  • This survey documents the type of cables (with accessories) and modems and network interfaces (NICs).

Network Topology

  • Network topology is a pictorial representation of network configurations, including network nodes and connections.
  • This selection stage defines how network segments are connected, and what internetworking devices (like hubs, switches, and routers) are required.
  • A hierarchical model is commonly used for enterprise LAN/WAN networks. It consists of three layers: core, distribution, and access.

Core Layer

  • The core layer acts as the backbone, optimizing packet switching speed and performance.
  • Servers and user machines are not typically connected to the core layer.
  • Packet manipulation and traffic management are performed at other layers.

Distribution Layer

  • The distribution layer acts as a demarcation point between the access and core layers.
  • It defines boundaries, and can perform tasks like traffic redirection, filtering, and security.
  • Functions like address aggregation are frequently implemented here to ensure optimized flow and administration.

Access Layer

  • The access layer connects users and devices directly into the network.
  • It can involve optimization such as bandwidth sharing, switched bandwidth, MAC layer filtering, and micro-segmentation for the users.

Network Requirements

  • After surveying the facility and equipment, the requirements for the network need to be established and matched with the existing hardware, software, and communication features.
  • Determining the steps to complete the network design is crucial.

Network Layout and Media

  • The physical layout of the network includes the locations of hardware and their interconnections.
  • The topology needs to be mapped, including all devices and peripherals.
  • Choosing the correct network media (like fiber optic or twisted pair cable) depends on the environment, such as manufacturing facilities or office buildings.

Project Timeline

  • A project timeline, like a Gantt chart, should be developed for the implementation of the designed network.
  • The schedule helps manage tasks, including vendor selection, system installation, and network connectivity setup, and training.

Final Proposal

  • The final design proposal summarizes the design plan and requirements for the client.
  • Proposals should include executive summaries, project goals, scopes, and detailed design requirements (both technical and business), as well as current-state, logical, and physical network designs.
  • The budget and any associated expenses should also be described.

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Chapter 4: Designing Networks PDF

Description

Explore the fundamentals of network design, focusing on organizational objectives and technical goals. Understand the differences between peer-to-peer and server-based networks, including factors influencing each choice. This quiz will enhance your knowledge of creating efficient and scalable network solutions.

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