Question

Difficulty: EasyNetwork Cable Types and Connectors

Match each network cable type or connector to its primary characteristic or standard application.

  • Single-Mode Fiber (SMF)Transmits data over long distances using a single ray of light through a narrow core.
  • RG-6 Coaxial CableFeatures 75-ohm impedance and is used for cable television and satellite signal delivery.
  • Cat 6a Twisted PairSupports 10 Gbps Ethernet transfer speeds across full 100-meter segment lengths.
  • DB-9 ConnectorLegacy 9-pin D-subminiature connector used for serial communication and console connections.

Answer

Single-Mode Fiber pairs with long-distance light transmission; RG-6 Coaxial pairs with 75-ohm television/satellite delivery; Cat 6a pairs with 10 Gbps speeds up to 100 meters; DB-9 Connector pairs with 9-pin legacy serial communications.
Each item accurately aligns with its standard industry definition and operational specification: Single-Mode Fiber for long-range optical data, RG-6 coaxial for 75-ohm RF video signals, Cat 6a for 10 Gbps up to 100m, and DB-9 for 9-pin serial interfaces.

Step-by-Step Solution

1
Identify the optical fiber cabling specification
Single-Mode Fiber uses a single laser pathway through a thin core for long-range transmission.
Single-mode fiber allows high-bandwidth communication across miles/kilometers without frequent amplification.
2
Identify coaxial cable impedance and common use
RG-6 is the standard 75-ohm coax used for video and broadband cable services.
RG-6 features a larger conductor and thicker insulation suitable for higher-frequency signals.
3
Evaluate Ethernet twisted-pair category ratings
Cat 6a supports 10 Gbps network bandwidth up to 100 meters.
Standard Cat 6 only achieves 10 Gbps up to 55 meters, whereas augmented Cat 6a supports 10 Gbps over the full 100 meters.
4
Classify serial port connector pinouts
DB-9 is a 9-pin D-subminiature connector used for serial ports.
Serial communications rely on DB-9 (DE-9) connectors for asynchronous data connections.

Key Concept

Identification of physical network cables, connectors, and performance specifications
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