2.8 – Network Tools: Network Tools
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Questions and Answers

What tool is used to add connectors to the end of network cables?

  • Cable tester
  • Network switch
  • Wire stripper
  • Cable crimper (correct)

Which type of cables can cable crimpers be used on?

  • Coaxial, twisted pair, and fiber cables (correct)
  • Only coaxial cables
  • Only fiber cables
  • Only twisted pair cables

What mechanism do crimpers use to make connections with twisted pair cables?

  • They melt the insulation
  • They twist the wires together
  • They solder the connections
  • They push prongs through the insulation (correct)

What does a properly crimped RJ45 connector look like?

<p>Cables run to the top and make good connections (C)</p> Signup and view all the answers

What is the purpose of the cable stay in an RJ45 connector?

<p>To hold the cable in place (B)</p> Signup and view all the answers

What happens to the sharp prongs during the crimping process?

<p>They connect with the copper strands inside (A)</p> Signup and view all the answers

Why is a cable crimper essential when running your own cable?

<p>To add connectors to the cable ends (D)</p> Signup and view all the answers

What key feature must be ensured for good connection in an RJ45 connector?

<p>Cables must fill the connector completely (A)</p> Signup and view all the answers

What is the primary purpose of using a loopback plug during troubleshooting?

<p>To send information out and receive it back to check interface integrity (B)</p> Signup and view all the answers

What distinguishes a loopback cable from a crossover cable?

<p>Loopback cables are used for testing interfaces, while crossover cables are used for network connections. (C)</p> Signup and view all the answers

What is a physical network tap primarily used for?

<p>To capture a copy of data flowing between devices for analysis (C)</p> Signup and view all the answers

How does a SPAN function operate in a switch?

<p>It mirrors traffic from one port to another for analysis without physical interruption. (D)</p> Signup and view all the answers

Which type of tap requires power to operate?

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

What is the role of a protocol analyzer when used with a physical tap?

<p>It monitors and analyzes the traffic captured by the physical tap. (B)</p> Signup and view all the answers

What happens when you use a physical network tap in a connection?

<p>It allows data to flow normally while creating a copy for analysis. (D)</p> Signup and view all the answers

What limitation may affect the use of SPAN configurations?

<p>There are bandwidth limitations on the interfaces involved. (C)</p> Signup and view all the answers

What is the main difference between a passive tap and an active tap?

<p>Passive taps do not require power, while active taps do. (A)</p> Signup and view all the answers

Why might a technician choose to use a loopback plug instead of a physical tap?

<p>Loopback plugs are easier to set up and do not require extra hardware. (A)</p> Signup and view all the answers

What is the primary function of electrician scissors in cable management?

<p>Cutting electrical cables to a specific length (C)</p> Signup and view all the answers

Which connector type is compatible with category 6 cables?

<p>RJ45 (A)</p> Signup and view all the answers

What is the purpose of a Wi-Fi analyzer in a wireless network?

<p>To analyze and visualize signals and frequencies used (C)</p> Signup and view all the answers

How does a tone generator assist in isolating a specific cable?

<p>By sending a tone that can be detected with a probe (D)</p> Signup and view all the answers

What is a significant advantage of using punch down blocks in cable management?

<p>They allow permanent connections with minimal tools (D)</p> Signup and view all the answers

What aspect must be maintained in Ethernet cables for optimal performance?

<p>The twist of the wires (B)</p> Signup and view all the answers

Which tool is primarily used for testing the continuity of cables?

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

What is a key limitation of basic cable testers?

<p>They cannot identify crosstalk or signal loss (C)</p> Signup and view all the answers

Why is good organization important when using punch down blocks?

<p>To prevent errors when managing multiple cables (D)</p> Signup and view all the answers

What does the inductive probe do when locating a tone generator?

<p>Detects sound waves from the cable (A)</p> Signup and view all the answers

What does a wire stripper do?

<p>Removes the insulation from wires (A)</p> Signup and view all the answers

What is essential to do when crimping an RJ45 connector onto a cable?

<p>Place the wires in the correct order (C)</p> Signup and view all the answers

What should you ideally do after connecting a cable to a punch down block?

<p>Label the connections for future reference (B)</p> Signup and view all the answers

Flashcards

Cable Crimper

A tool used to attach connectors, such as RJ45, to the end of cables.

RJ45 Connector

A type of connector commonly used for ethernet cables, often with 8 wires.

Crimping

The process of using a crimper to securely attach a connector to a cable.

Copper Connections

The part of the RJ45 connector where the wires are connected, typically copper pins.

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Crimper Prongs

The sharp prongs on the crimper that push through the insulation and into the copper wires, making the connection.

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Cable Stay

The part of the RJ45 connector that holds the cable in place, preventing it from slipping out.

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Adding Connectors

The final step in cable installation, after running the cable, where connectors are added to both ends.

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Good Crimp

The process of making sure the connector is properly attached to the cable, with all wires securely connected.

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Electrician Scissors

Specialized scissors designed for cutting Ethernet cables.

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Wire Stripper

Tool used to strip the outer sheath from Ethernet cables, revealing the wires inside.

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Crimping Tool

A tool that physically attaches the wires inside an Ethernet cable to the RJ45 connector.

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Wi-Fi Analyzer

Wireless network analysis software or hardware that monitors Wi-Fi signals and their frequencies.

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Tone Generator

A tool to identify a specific cable in a bundle by generating a tone that travels along the wire.

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What is a TDR?

A specialized tool that measures signal strength, length, and other characteristics of cables. It uses time-domain reflectometry (TDR) to analyze signal reflections.

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Inductive Probe

A passive device used in conjunction with a Tone Generator. It detects the tone on a wire without needing to touch it.

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What is a loopback test?

A method for testing a network interface by sending data out of the interface and back into the same device. This allows you to determine if the interface is working correctly.

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What is a physical network tap?

A physical device that allows you to capture a copy of network traffic passing through a connection. It is typically used to analyze network data and troubleshoot problems.

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Punch Down Block

A block with slots for punch-down tools to connect wires permanently. Used in telecommunications and for wiring.

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Punch Down Tool

A tool used to connect wires to a Punch Down Block by inserting and fastening them securely.

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What is a SPAN (Switch Port Analyzer)?

A function built into a network switch that allows a copy of network traffic from one or more interfaces to be sent to another interface for analysis. It's often used for troubleshooting or monitoring network traffic.

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Maintaining Twist

The practice of maintaining the twisting pattern of wire pairs as they are terminated to the RJ45 connector. This ensures optimal performance.

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Explain the function of a loopback plug.

It is used to test the physical interface of a network device by connecting the transmit and receive pins together, causing data sent from the interface to be immediately received back. If the data matches, the interface is working properly.

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What is the purpose of a physical network tap?

It connects two devices together without creating a loop, allowing you to analyze the traffic between them.

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Documentation

Maintaining detailed records of cable connections, labeling both ends for easy identification.

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Cable Tester

Tools with two units that test continuity and wiring errors between two ends of a cable.

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Why use a loopback plug?

The use of a loopback plug can confirm the functionality of a network interface by testing the transmission and reception of data on the same interface.

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Crosstalk

A measure of unwanted signals on a wire that can interfere with data transmission.

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What is the difference between a loopback cable and a crossover cable?

A loopback cable can be used for testing Ethernet, T1, and fiber connections, while a crossover cable connects two devices directly to each other.

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Signal Loss

The loss of signal strength as it travels along a cable. Affects data transmission and can cause errors.

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Study Notes

Cable Crimping and Tools

  • Cable crimpers are tools used to add connectors to cables (coaxial, twisted pair, fiber).
  • Crimpers are similar to pliers but designed specifically for adding connectors.
  • Crimpers typically push prongs through insulation and into the copper wire, creating a connection.
  • RJ45 connectors are common for twisted-pair cables, and copper connections are crucial.
  • Crimping pushes connectors into the RJ45 connector, forming a strong connection between the cable wires and the connector.
  • Cable stays are used to secure the cable in the connector.
  • Essential tools include crimpers, cable snips (electrician scissors), and wire strippers (cable strippers)
  • Different cable types (Cat 5, Cat 6, Cat 7) require specific connectors.
  • Practice is needed for proper cable assembly.

Wireless Network Tools

  • Wi-Fi analyzers are used to understand wireless network activity.
  • These analyzers identify active and open frequencies, essential in areas with many access points.
  • Wi-Fi analyzers can be software on laptops/mobiles or dedicated hardware.
  • Analyzers help visualize network interference and assist adjustments (like antenna positioning).

Cable Identification and Testing

  • Tone generators (toner probes) create signals on the wire which can be detected by inductive probes in cables.
  • This allows technicians to find specific cables from large bundles.
  • The tone generator is connected to one end, while the inductive probe is moved along cables until the tone is heard/seen.
  • Crimpers help to add connectors to cables.
  • Punch-down blocks are used for permanent connections in many cables.
  • Organization and labeling (numbers) are essential with punch-down blocks.

Advanced Troubleshooting Tools

  • Cable Testers: Check cable continuity between pins (1-8).
  • Time-Domain Reflectometer (TDR): Measure signal loss and crosstalk.
  • Crimpers are used for creating strong durable connections.
  • Loopback plugs are used for testing devices; they send data back to its origin.
  • Network Taps are used to capture data from a connection enabling data analysis.
  • Physical taps enable examination of data between network devices.
  • Port mirrors (SPAN) is a function on network switches to monitor traffic temporarily between connected interfaces.

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Description

This quiz covers essential tools for cable crimping and wireless networking. Learn about the use of crimpers, connectors, and Wi-Fi analyzers. Understand how these tools impact network performance and cable assembly techniques.

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