Data Cabling and Networking Quiz

What is the main purpose of a Local Area Network (LAN)?

• To connect homes to the national grid

• To link computers and devices within an organisation

• To provide Wi-Fi access only

• To store electrical energy for back-up use

Which of the following devices is not typically installed by an electrician during a data installation?

• Ethernet cabling

• Servers and data switches

• RJ45 outlets

• Cable trunking

What is the usual maximum length of a Cat 6 Ethernet cable before performance degrades?

• 50 metres

• 75 metres

• 90 metres fixed + 10 metres patch leads

• 150 metres

What type of connector is most commonly used for data network cabling?

• RG59

• RJ11

• RJ45

• BS1363

How many pairs of conductors are inside a standard Cat 6 data cable?

• Two pairs

• Three pairs

• Four pairs

• Eight pairs

Why are pairs of wires twisted together in a Cat 6 cable?

• To make installation easier

• To reduce interference and cross-talk

• To colour-code the conductors

• To increase flexibility

The correct bending radius for a Cat 6 cable should be at least:

• Twice the overall diameter

• Three times the overall diameter

• Four times the overall diameter

• Five times the overall diameter

The main function of a data hub or switch is to:

• Increase cable strength

• Distribute data signals to multiple devices

• Provide surge protection

• Reduce signal noise

What is the total maximum allowed run length for Ethernet cabling including patch leads?

• 50 m

• 75 m

• 100 m

• 120 m

What device can be used to extend data transmission over distances greater than 100 metres?

• Transformer

• Circuit breaker

• Repeater or switch

• Resistor