Ethernet Cables and RJ-45 Connectors

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main purpose of a crossover cable?

To connect multiple devices to a single switch or hub

To connect a device to a switch or hub

To connect one device directly to another without a switch or hub (correct)

To connect a device to the internet via a modem

What is the primary difference between 568A and 568B standards?

The color of the cable

The type of materials used in the cable

The transmit and receive pairs are reversed (correct)

The number of pins on the RJ-45 connector

What is the purpose of the cladding in a fiber optic cable?

To refract light back into the core (correct)

To protect the fiber from physical damage

To connect multiple fibers together

To transmit data through the cable

What is the benefit of using fiber optic cables over copper cables?

Fiber optic cables are not subject to electromagnetic interference Signup and view all the answers

What is the main application of coaxial cable?

Cable internet service and audio/video applications Signup and view all the answers

What is the main difference between single-mode and multimode fiber?

The number of light paths carried Signup and view all the answers

What is the primary function of the shielding in coaxial cable?

To reduce electromagnetic interference Signup and view all the answers

What type of fiber has a much longer transmission distance?

Single-mode fiber Signup and view all the answers

What is the maximum length of a Thunderbolt optical cable?

60 meters Signup and view all the answers

What is the total throughput of Thunderbolt 1 and 2?

20 Gbps Signup and view all the answers

What type of connector is used on the peripheral end of Thunderbolt version 3?

USB-C Signup and view all the answers

What is the data transfer rate of USB 1.1 at lengths up to 3 meters?

1.5 Mbps Signup and view all the answers

What type of connector is used on USB 3.0 and newer cables?

USB-C Signup and view all the answers

What is the maximum length of a USB 2.0 cable?

5 meters Signup and view all the answers

What is the data transfer rate of USB 3.0 at lengths up to 3 meters?

5 Gbps Signup and view all the answers

What type of cable is used to connect to a wide variety of peripheral devices?

USB Signup and view all the answers

What is the primary benefit of flash memory being erased in blocks rather than at the byte level?

Lower cost Signup and view all the answers

What type of memory card is designed to withstand higher impact without damage?

SD card Signup and view all the answers

What is the primary use case for CompactFlash cards?

Cameras Signup and view all the answers

What is the purpose of mirroring in RAID configurations?

To provide redundancy Signup and view all the answers

What RAID configuration offers striping with parity and requires a minimum of three drives?

RAID 5 Signup and view all the answers

What is the primary benefit of hot swappable drives?

Easy replacement without downtime Signup and view all the answers

What type of drive is often hot swappable?

USB flash drive Signup and view all the answers

What is the minimum number of drives required for a RAID 10 configuration?

Four Signup and view all the answers

What is the primary use of serial cables?

To connect a laptop to the console or management port of a network device Signup and view all the answers

Which type of cable is commonly used to connect a hard drive to a motherboard?

SATA Signup and view all the answers

What is the maximum cable length of SATA cables?

1 meter Signup and view all the answers

What is the purpose of adapters?

To connect a device to a port that is different from the connector on the device Signup and view all the answers

What type of cable is used to connect a USB port on a computer to an Ethernet port on a network device?

USB to Ethernet Signup and view all the answers

Which type of cable is designed to support a wide variety of device types?

SCSI Signup and view all the answers

What is the limitation of DVI cables in terms of audio?

They cannot carry audio Signup and view all the answers

How many devices, including the motherboard or SCSI controller card, may be connected to one SCSI cable or daisy-chained together?

16 Signup and view all the answers

What is the most common way to connect a printer to a computer?

USB Signup and view all the answers

Which type of connection allows printers to be connected directly to a network?

Ethernet Signup and view all the answers

What is the maximum distance for devices to connect to a printer using Bluetooth?

10 meters Signup and view all the answers

What is the term for when a device connects directly to a printer using 802.11?

Ad hoc mode Signup and view all the answers

What is the primary function of a print server?

To spool printing requests from users Signup and view all the answers

What type of connection allows mobile devices to send documents directly to a printer?

Bluetooth Signup and view all the answers

What is the term for when a device and a printer use the network WiFi infrastructure to communicate?

Infrastructure mode Signup and view all the answers

What is a benefit of using a print server?

It allows prioritization of print jobs Signup and view all the answers

Study Notes

Network Cables

Ethernet cables are terminated with RJ-45 connectors and follow the EIA/TIA 568A & 568B Standards.
568A and 568B differ in their transmit and receive pairs, allowing for straight-through and crossover cables.
Straight-through cables connect a device to a network via a switch or hub, using the same pin-out on both ends.
Crossover cables connect two devices directly, using 568A on one end and 568B on the other.

Fiber Optic Cable

Uses light pulses to transmit data through a glass or plastic core.
Consists of four layers: core, cladding, outer sheath, and strength member or buffer.
Not subject to electromagnetic interference.
Transmission distances are longer and data rates are higher than copper cable.
Two basic types: single-mode (carries one light path) and multimode (carries multiple light paths).

Coaxial Cable

Primarily used for cable Internet service and audio/video applications.
Has a single copper conductor core surrounded by a dielectric insulator and shielding.
Two most common types: RG-6 for data and RG-59 for audio/video.

Speed and Transmission Limitations

Each type of network has speed and distance limitations.
Cable types (e.g. Thunderbolt, USB) have varying speeds and distances.

Thunderbolt

Another Apple-proprietary cable.
Comes as either copper or optical cable.
Maximum length: 3 meters for copper, 60 meters for optical.
Connectors based on Mini DisplayPort standard, except Thunderbolt version 3 uses USB-C.
Provides both data and power to peripheral devices.

USB

Universal Serial Bus cables connect to a wide variety of peripheral devices.
Version 1.1 was the first in common use.
Uses type-A connector on PC side and type-B connector on peripheral side.
Supports two speeds: low speed (1.5 Mbps at 3 meters) and full speed (12 Mbps at 5 meters).
Provides power.

Other Cable Types

Serial cables connect to serial ports and hard drives.
Peripheral cables connect a PC to other devices.
Hard drive cables connect a hard drive to a motherboard or controller card.

Hard Drive Cables

SATA (Serial Advanced Technology Attachment) cable is the most commonly used hard drive cable.
Different SATA revisions: 1.0, 2.0, 3.0, and 3.2 support speeds of 1.5 Gbps, 3 Gbps, 6 Gbps, and 16 Gbps, respectively.
IDE (Integrated Drive Electronics) is an older interface.
SCSI (Small Computer System Interface) was designed to support a wide variety of device types.

Adapters

Used to connect a device to a port that is different from the connector on the device.
Examples: DVI to HDMI, USB to Ethernet.

Storage Devices

Configurations: high availability, RAID (Redundant Array of Inexpensive Disks).
RAID levels: 0, 1, 5, 10, offering different levels of data protection.
Hot swappable drives can be inserted or removed in real-time while the system is powered on.

Devices can be shared by multiple users over wired or wireless connections.
Wired connections: USB, serial, or Ethernet.
Wireless connections: Bluetooth, 802.11, or direct ad hoc connection.
Print servers: integrated into the printer or separate devices, handle printing requests from users.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Learn about the termination of Ethernet cables with RJ-45 connectors and the difference between EIA/TIA 568A and 568B standards. Understand the uses of straight-through and crossover cables.