Introduction to Networks Quiz
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Questions and Answers

What is one advantage of Multiprotocol Label Switching (MPLS)?

  • Complex configuration
  • No data prioritization
  • High redundancy in case of link failure (correct)
  • Increased physical cabling requirements

What does mGRE stand for?

Multipoint Generic Routing Encapsulation

Client-server networks are more organized than peer-to-peer networks.

True (A)

Which network architecture is characterized by equal authority among connected devices?

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

What is a primary drawback of bus topology?

<p>Single point of failure due to the main cable</p> Signup and view all the answers

Match the following topologies with their characteristics:

<p>Bus = Easy to install, cost-effective, but lacks fault tolerance Star = More scalable, easier to troubleshoot, has a single point of failure Ring = Data flows in a circle, difficult to add devices, not fault-tolerant Mesh = Multiple connections for fault tolerance, complex to manage</p> Signup and view all the answers

A star topology configuration is less fault-tolerant than a bus topology.

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

A ___ topology has a direct connection between two devices.

<p>point-to-point</p> Signup and view all the answers

What is one limitation of a mesh topology?

<p>Complex due to many connections (C)</p> Signup and view all the answers

Which of the following are network topologies? (Select all that apply)

<p>Point to point (A), Mesh (B), Star/hub and spoke (C), Three-tier hierarchical model (D)</p> Signup and view all the answers

A local area network (LAN) typically spans multiple geographic locations.

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

What is the primary purpose of a router in a network?

<p>To connect different LANs and route data between them.</p> Signup and view all the answers

Which device primarily provides access to resources on a network?

<p>Server (C)</p> Signup and view all the answers

The term ______ refers to any device on the network that can request access to resources.

<p>client machine</p> Signup and view all the answers

What distinguishes a server from a workstation?

<p>Servers are dedicated to providing services and resources to client machines, while workstations are used by end-users.</p> Signup and view all the answers

Which of the following describes a wide area network (WAN)?

<p>Interconnects LANs over large geographic areas (A)</p> Signup and view all the answers

Match the following server types with their functions:

<p>File Server = Stores and dispenses files Mail Server = Handles email functions Print Server = Manages printers on the network Web Server = Manages web-based activities</p> Signup and view all the answers

A storage area network (SAN) can carry general network traffic.

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

What does a metropolitan area network (MAN) typically cover?

<p>A metropolitan area network covers a metropolitan area, interconnecting buildings and facilities.</p> Signup and view all the answers

Which topology consists of a succession of connections between one router and multiple destination routers?

<p>Point-to-multipoint (C)</p> Signup and view all the answers

What does hybrid topology mean?

<p>A combination of two or more types of physical or logical network topologies.</p> Signup and view all the answers

A _____ is a network typically found in your home or workplace.

<p>LAN</p> Signup and view all the answers

A _____ connection connects your home or workplace to the Internet.

<p>WAN</p> Signup and view all the answers

A _____ topology is also known as a hub-and-spoke topology.

<p>Star</p> Signup and view all the answers

The term ____ is used to describe the service-related entry point for a provider.

<p>demarc</p> Signup and view all the answers

The ______ ______ model is used to condense the core and distribution layers into one layer.

<p>collapsed-core</p> Signup and view all the answers

Fault tolerance is not a key consideration when designing a network.

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

What is the backbone of a network?

<p>The main connection point where all network segments and servers connect, providing structure.</p> Signup and view all the answers

What type of network allows for very fast switching in data centers?

<p>Spine-leaf</p> Signup and view all the answers

Which layer in the three-tier model is responsible for connectivity between geographic areas?

<p>Core Layer (B)</p> Signup and view all the answers

East-west traffic refers to data flowing to and from your internal network to the outside Internet.

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

A _____ is a virtualized piece of hardware that connects the virtual machine operating system to the network.

<p>vSwitch</p> Signup and view all the answers

Fibre Channel is typically found inside a _____.

<p>SAN</p> Signup and view all the answers

The term used to reference the smallest piece of the network is ______ ______.

<p>network segment</p> Signup and view all the answers

The _____ technology uses labels to switch traffic.

<p>MPLS</p> Signup and view all the answers

The _____ _____ architecture is found in data centers to provide low-latency connectivity to servers.

<p>three-tier</p> Signup and view all the answers

Which network type is locally owned and managed by an organization and used to connect the organization's LAN together?

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

Which network topology design has a centralized switch connecting all of the devices?

<p>Star topology (A)</p> Signup and view all the answers

Which protocol can be typically found inside a PAN?

<p>Bluetooth (C)</p> Signup and view all the answers

When computers are logically grouped on a LAN based upon a functional department in the organization, what is the group called?

<p>Workgroup (C)</p> Signup and view all the answers

Which is the primary benefit to using a star topology?

<p>Easy to troubleshoot (C)</p> Signup and view all the answers

What type of logical connection does MPLS create to connect networks together?

<p>Circuit (C)</p> Signup and view all the answers

Which type of network is used exclusively for storage traffic?

<p>SAN (C)</p> Signup and view all the answers

Which type of traffic flow is routed from your internal network to the Internet?

<p>North-south (D)</p> Signup and view all the answers

Which topology incorporates some redundancy of equipment and connections to provide fault tolerance but is not completely fault-tolerant?

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

Which topology should be selected if you have a central office that needs to communicate with several branch offices for WAN connectivity?

<p>Point-to-multipoint (C)</p> Signup and view all the answers

Which network architecture allows for access or sharing of resources in a network by the same host?

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

Which is the major advantage of client-server network architecture?

<p>Centralized management (A)</p> Signup and view all the answers

You are setting up a network connection that requires redundancy in the event a switch or single link fails. Which topology should you select?

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

Where is the full mesh topology commonly seen in the three-tier design model?

<p>Core layer (C)</p> Signup and view all the answers

Which connectivity method is used within a small geographic area to connect an organization together?

<p>LAN (C)</p> Signup and view all the answers

Which virtual network element connects multiple VMs together?

<p>vSwitch (C)</p> Signup and view all the answers

When you tether a cell phone to your laptop using wireless, what is this an example of?

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

What is the term used to describe the common network used to connect multiple network segments at high speed?

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

What is a smart jack as it relates to WAN connectivity?

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

Which protocol is used with dynamic multipoint VPN deployments?

<p>mGRE (C)</p> Signup and view all the answers

Flashcards

Network Topology

The physical or logical arrangement of nodes and connections in a computer network.

Mesh Network

A network topology where each node connects to multiple other nodes.

Hybrid Network

A network combining multiple topologies to optimize performance and functionality.

Star/Hub and Spoke Network

A network topology where all connections radiate from a central device (hub).

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Spine and Leaf Network

A network architecture with a core spine that connects to smaller leaf switches.

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Point-to-Point Network

A network topology with a dedicated connection between two nodes.

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Three-Tier Hierarchical Model

A network architecture divided into core, distribution, and access layers.

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Core Layer

The central layer in a hierarchical model, responsible for high-speed data transfer.

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Distribution Layer

The intermediate layer in a hierarchical model, providing aggregation and security.

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Access Layer

The lowest layer in a hierarchical model, connecting end-user devices.

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LAN (Local Area Network)

A network covering a limited geographic area (e.g., office, home).

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Workstation

A powerful computer used by end-users, often running multiple CPUs.

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Server

A powerful computer that provides resources and services to other devices (clients).

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Host

Any device on a network with an IP address.

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Router

A networking device that connects different networks together.

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SDWAN

Simplifies wide area network management by separating networking hardware from its control mechanism.

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MPLS

Popular WAN protocol using labels for data forwarding.

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MPLS Advantages

Flexible physical layout, data prioritization, redundancy, and one-to-many connections.

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mGRE

Dynamically creates and terminates connections in multipoint VPN deployments.

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Peer-to-Peer Network

Network where all computers are equal, sharing resources without central authority.

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Client-Server Network

Network with a central server managing resources, handling security.

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Network Architecture

Logical structure of a network – peer-to-peer or client-server.

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Bus Topology

Network where computers share a single cable.

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Star Topology

Network connected to a central device, like a hub or switch.

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Ring Topology

Network where computers form a closed loop, data flows in a circle.

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Mesh Topology

Network with multiple paths between all devices, maximum redundancy (connections).

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Point-to-Point Topology

Direct connection between two devices (e.g., routers).

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Physical Topology

Physical layout of network devices and connections.

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Logical Topology

How data flows through the network, independent of physical layout.

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Fault Tolerance

Capability of a system to automatically respond to and resolve issues.

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Point-to-Point Network

Network with a dedicated connection between two nodes.

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Point-to-Multipoint Topology

One point connected to multiple destinations; same network.

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Hybrid Topology

Combining two or more topologies.

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Network Backbone

Main network structure, connecting segments.

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Network Segments

Smaller sections of network, not part of backbone.

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Demarcation Point (Demarc)

Service provider responsibility boundary.

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Three-Tiered Model

Network design with core, distribution, and access layers.

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Collapsed-Core Model

Combining core and distribution layers in one.

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North-South Traffic

Network traffic entering and leaving the company network.

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East-West Traffic

Network traffic between internal parts (servers).

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LAN

Local network, covering a limited area.

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WAN

Wide-area network, connecting multiple LANs.

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Spine-Leaf Switching

Fast, redundant data center network architecture.

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Wireless Bridge

Device to connect wirelessly across distances.

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Leased Line

Dedicated connection for customer use.

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virtual network interface card (vNIC)

A virtualized network interface connecting a virtual machine to a network.

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Fibre Channel

A high-speed network technology, commonly used inside storage area networks (SANs).

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smallest network piece

A single connection point or data unit in a network.

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MPLS (Multiprotocol Label Switching)

A networking technology that uses labels to forward data packets.

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low-latency connectivity

A network architecture focused on fast data transfer, crucial for data centers.

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locally owned network

A network controlled and managed by a single organization.

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star topology

A network design with a central switch connecting all devices.

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PAN (Personal Area Network)

A network connecting devices in a small area, like Bluetooth.

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workgroup

A logical grouping of computers on a LAN based on departments.

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SAN (Storage Area Network)

A network dedicated exclusively to storage traffic.

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Study Notes

Introduction to Networks

  • Networks are invaluable in personal and professional life.
  • Networks come in various sizes and complexities.
  • Proper maintenance is crucial.

Network Topologies, Architectures, and Types

  • Mesh: Every device has a path to every other device.
  • Hybrid: Combines different topologies.
  • Star/hub and spoke: Devices connect to a central point.
  • Spine and leaf: High-performance design for data centers.
  • Point-to-point: A direct connection between two devices.
  • Point-to-multipoint: A single device connects to multiple devices.
  • Bus: A single cable connects all devices.
  • Ring: Devices connected in a ring.

Common Network Components

  • Workstations: Powerful computers used by users.
  • Servers: Dedicated computers that provide resources.
  • File Servers: Stores and manages files.
  • Mail Servers: Manages emails.
  • Print Servers: Manages printers.
  • Web Servers: Manages web content.
  • Fax Servers: Sends and receives faxes.
  • Hosts: Devices on a network that can be accessed by others.

Network Types

  • Local Area Network (LAN): Connects devices in a limited geographic area (e.g., home, office).
  • Metropolitan Area Network (MAN): Connects devices over a city or metropolitan area, often using carrier provider networks and high-speed connections.
  • Wide Area Network (WAN): Connects devices over a large geographic area, often using multiple technologies (e.g., public links, routers) and can use different media.
  • Personal Area Network (PAN): Connects devices in a very small area (e.g., a conference room).
  • Campus Area Network (CAN): Connects devices within a campus or corporate area.
  • Storage Area Network (SAN): Connects storage devices to servers, used for storage infrastructure.

Software-Defined Wide Area Network (SDWAN)

  • A virtual network architecture.
  • Uses software to manage connectivity, devices, and services.
  • Software-based management, allowing for quick adjustments.
  • Integration of various transport technologies, including MPLS.

Multiprotocol Label Switching (MPLS)

  • A switching mechanism that uses labels to forward data.
  • Improves network performance.
  • Increases physical and logical network flexibility.

Network Architecture

  • Peer-to-Peer: All devices have equal roles in the network
  • Client-Server: A central server provides resources to client devices.

Network Topology Selection, Backbones, and Segments

  • Network Backbone: A central, high-bandwidth network connection.
  • Network Segments: Smaller parts of the network that connect to the backbone.
  • Choosing the right topology involves cost, ease of installation and maintenance, fault-tolerance, and security.

Service-Related Entry Points

  • Demarcation point (demarcation): The point where a service provider's network ends.
  • Service provider links: Methods of connecting networks (e.g., DSL, fiber).

Virtual Networking

  • Virtualized networking resources.
  • Network function virtualization (NFV): Software-defined network functions.
  • Virtualized servers and network devices can be housed on a single system.

Three-Tiered Model and Spine and Leaf Model

  • Core Layer: High-availability backbone of the network.
  • Distribution Layer: Connects the core layer to access layer
  • Access Layer: Connects end-user devices.
  • Spine: Network backbone; connects leaf switches (highly reliable and scalable).
  • Leaf: Connects servers to the spine (provides many ports).

Traffic Flow

  • North-South traffic: Data moving to and from the internal network to the internet.
  • East-West traffic: Data moving within the network between internal devices or locations.

Summary

  • This chapter provides a foundation for understanding network technologies.
  • Various network topologies, components, and concepts are discussed.

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Description

Test your knowledge on the basics of networks including their importance, types, and topologies. This quiz covers various network architectures and common components essential for understanding networking concepts. Perfect for beginners and professionals alike.

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