Network Hosts: Servers and Clients
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Questions and Answers

Considering the primary factors for choosing network media, which scenario would MOST likely lead to selecting fiber-optic cables?

  • A short-distance connection in a home network with limited devices.
  • A temporary network setup requiring quick and easy installation without concern for long-term performance.
  • A small office environment requiring low bandwidth and minimal installation costs.
  • A large data center needing high-speed data transmission over long distances. (correct)

In a scenario where a business requires network connectivity in a building with significant electromagnetic interference, which network media would be the MOST suitable?

  • Coaxial copper cable
  • Fiber-optic cable (correct)
  • Wireless (Wi-Fi)
  • Unshielded twisted pair (UTP) copper cable

When selecting network media, what is the MOST important consideration when evaluating the 'amount of data and speed' requirement?

  • Ensuring the media can support the current data needs, without considering future growth.
  • Selecting a media type capable of handling current and anticipated future bandwidth demands. (correct)
  • Choosing the cheapest media option to minimize initial costs.
  • Prioritizing ease of installation over data transmission capabilities.

A company is setting up a network in a historical building where running new cables is difficult and expensive due to structural limitations. Which network media would offer the MOST practical solution, balancing cost, installation complexity, and performance?

<p>Using wireless mesh network with multiple access points. (A)</p> Signup and view all the answers

In designing a network for a large outdoor area, such as a college campus, what factor related to distance MOST influences the choice between copper, fiber, and wireless media?

<p>The maximum cable length before signal degradation becomes unacceptable. (D)</p> Signup and view all the answers

Which statement accurately describes the relationship between hosts, clients, and servers in a network?

<p>All clients are hosts, and servers are a specific type of host. (A)</p> Signup and view all the answers

What is the primary purpose of an IP address in network communication?

<p>To uniquely identify a host and the network it belongs to. (D)</p> Signup and view all the answers

A computer is running both web server software and a web browser. What role(s) is this computer taking on?

<p>Both a client and a server. (C)</p> Signup and view all the answers

In a peer-to-peer network, what is the function of a computer that is directly connected to a printer via USB and also connected to the network?

<p>It can share the printer and act as a file server. (C)</p> Signup and view all the answers

Which of the following scenarios best describes a client-server relationship?

<p>A computer accessing a website hosted on another computer. (B)</p> Signup and view all the answers

A small office needs to set up a network for file sharing and printing without a dedicated server. Which type of network is most suitable?

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

A user is simultaneously using a web browser, an email client, and an instant messaging application. How many client software programs are being used?

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

What is a key characteristic that differentiates a host from other network devices like routers or switches?

<p>Hosts are assigned IP addresses for identification and communication. (C)</p> Signup and view all the answers

Which scenario would most likely benefit from a peer-to-peer network?

<p>A small office needing to share a printer and occasionally transfer files directly between computers. (B)</p> Signup and view all the answers

A home network user notices significantly reduced internet speed when another user is simultaneously downloading large files. What is the most likely cause in a peer-to-peer network environment?

<p>One computer is acting as both a client and a server, slowing down its performance. (B)</p> Signup and view all the answers

In a network, what is the primary function of an end device?

<p>To serve as the source or destination of data transmitted over the network. (B)</p> Signup and view all the answers

Consider a network with a broken link between two intermediary devices. Which function of intermediary devices would be most crucial in maintaining network connectivity?

<p>Directing data along alternate pathways when there is a link failure. (C)</p> Signup and view all the answers

A network administrator wants to prioritize video conferencing traffic over email traffic. Which function of intermediary devices would they utilize?

<p>Classify and direct messages according to priorities. (A)</p> Signup and view all the answers

Which type of network media is LEAST susceptible to electromagnetic interference?

<p>Glass or plastic fibers within cables (fiber-optic cable). (B)</p> Signup and view all the answers

A company is setting up a new office and needs to choose a network media. They require high bandwidth and secure data transmission over a long distance. Which media would be the BEST choice?

<p>Glass or plastic fibers within cables (fiber-optic cable) because they offer high bandwidth, security and can carry a signal over long distance. (C)</p> Signup and view all the answers

What is a primary disadvantage of peer-to-peer networks in terms of security?

<p>They lack centralized administration, making security enforcement inconsistent. (C)</p> Signup and view all the answers

Which of the following BEST describes the role of intermediary devices in a network?

<p>To connect end devices and ensure data flows correctly across the network. (D)</p> Signup and view all the answers

An administrator is troubleshooting a network where data is not reaching its destination. Which intermediary device function should they investigate FIRST?

<p>The device's ability to maintain information about what pathways exist through the network. (A)</p> Signup and view all the answers

Which characteristic of peer-to-peer networks makes them NOT scalable for large organizations?

<p>Their lack of centralized administration and security features. (D)</p> Signup and view all the answers

In a scenario where security is paramount, which network topology would be MOST suitable?

<p>Client-server network with centralized administration. (D)</p> Signup and view all the answers

What is the role of a repeater within intermediary devices?

<p>To regenerate and retransmit communication signals. (D)</p> Signup and view all the answers

Why is it important for intermediary devices to classify messages according to priority?

<p>To prevent network congestion and ensure critical data is delivered promptly. (C)</p> Signup and view all the answers

What is the MOST important factor to consider when selecting a network media type for a new network installation?

<p>The maximum distance the media can successfully carry a signal. (A)</p> Signup and view all the answers

Flashcards

Hosts

Devices that connect to a network and participate in communication.

IP Address

A unique numerical address that identifies a host on a network.

Servers

Provide information, like email or web pages, to other devices on the network.

Clients

Software on computers that requests and displays information from servers.

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Web Browser

Software that allows users to view web pages.

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Peer-to-Peer Network

A network where computers can function as both servers and clients.

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Print Sharing PC

Connects a printer to a network, enabling sharing.

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Network Interface Card (NIC)

Connects a computer to a network.

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Maximum Distance

The maximum distance a medium can reliably carry a signal.

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Installation Environment

Environmental factors that impact the lifespan of a medium.

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Data and Speed Needs

The volume of data and the speed at which it must be sent.

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Media and Installation Cost

The expense of the medium itself and the cost to set it up.

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Advantages of peer-to-peer

Easy to set up, less complex, lower cost.

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Disadvantages of peer-to-peer

No central administration, less secure, not scalable, performance impact.

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End Devices

Devices that are the source or destination of data on a network.

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Device address

Each end device has one of these to be identified on a network.

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Intermediary Devices

Devices that connect end devices and manage data flow in a network.

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Intermediary device functions

Regenerating signals, maintaining pathways, notifying errors, directing data.

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Repeater

Device that regenerates and retransmits communication signals.

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Examples of intermediary devices

Wireless router, LAN switch, router, multilayer switch, firewall appliance.

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Network Media

The means by which data is transmitted across a network.

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Types of Network Media

Metal wires, fiber-optic cable, wireless transmission.

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Metal wires data transmission

Data is encoded into electrical impulses.

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Fiber optic cable data transmission

Data encoded into pulses of light

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Wireless transmission

Data encoded via modulation of electromagnetic waves.

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Criteria for choosing network media

Distance, environment, bandwidth, cost.

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Study Notes

  • To participate in a global online community, a device needs to connect to a network, which in turn connects to the internet.

Host Roles

  • Hosts are any computers connected to a network that directly participate in network communication.
  • Hosts are also known as end devices.
  • Hosts are assigned a number called an Internet Protocol (IP) address for communication purposes.
  • The IP address identifies the host and the network it's connected to.
  • Servers are computers using software to provide information, such as email or web pages, to other end devices.
  • Each service requires separate server software such as web server software.
  • A single server can provide services to many clients simultaneously.
  • Clients are a type of host that use software to request and display information from servers.
  • Client software examples include web browsers like Chrome or Firefox.
  • A single computer can run multiple types of client software at once.

Peer-to-Peer

  • Client and server software can run on separate computers or on the same one.
  • Peer-to-peer networks involve computers functioning as both servers and clients, common in small businesses and homes.
  • Advantages of peer-to-peer networks:
    • Easy to set up and less complex.
    • Lower cost due to not requiring dedicated servers.
    • Suitable for simple tasks like file transfer and printer sharing.
  • Disadvantages of peer-to-peer networks:
    • Lack of centralized administration, making management difficult.
    • Less secure compared to client-server models.
    • Not easily scalable as the network grows.
    • Performance can be slowed down as devices act as both clients and servers.

End Devices

  • End devices are the network components most familiar to users.
  • Each end device has a unique address to distinguish it from others on the network.
  • When an end device starts communication, it uses the destination end device's address to specify where to send the message.
  • An end device can be either the source or the destination of a message transmitted over the network.

Intermediary Devices

  • Intermediary devices connect individual end devices to the network.
  • They also connect multiple networks to form an internetwork.
  • These devices ensure data flows correctly across the network.
  • Intermediary devices use the destination end device's address and network interconnection data to determine the path for messages.
  • Common intermediary devices include:
    • Wireless routers
    • LAN switches
    • Routers
    • Multilayer switches
    • Firewall appliances
  • Intermediary network devices functions:
    • Regenerating and retransmitting communication signals to maintain signal strength.
    • Maintain information about network and internetwork pathways.
    • Notifying devices of errors and communication failures.
    • Directing data along alternate pathways during link failures.
    • Classifying and directing messages based on priority.
    • Permitting or denying data flow based on security settings.
  • Ethernet hubs are also known as multiport repeaters which regenerate and retransmit communication signals

Network Media

  • Data transmits across a network via network media.
  • The media provides the channel for messages to travel from source to destination.
  • Three primary types of media for interconnecting devices:
    • Metal wires within cables, where data is encoded as electrical impulses.
    • Glass or plastic fibers within cables (fiber-optic cable), where data is encoded as pulses of light.
    • Wireless transmission, where data is encoded via modulation of specific electromagnetic wave frequencies.
  • Four main criteria for choosing network media:
    • Maximum distance the media can carry a signal successfully.
    • The environment in which the media will be installed.
    • The amount of data and the required transmission speed.
    • The cost of the media and its installation.

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Description

Explanation of host roles in a network, including servers and clients. Covers IP addresses, server software, and client software examples like web browsers. Introduces peer-to-peer networking.

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