Free mock exam
Network Applications & PoE — Data Cabling Practice
Free topic-focused mock exam: all 30 questions on Network Applications & PoE, drawn from the wider Data Cabling bank. 35-minute timer, 70% to pass, worked explanation on every question. Use this when you've taken the full mock once and want to drill the topics you got wrong.
- Questions
- 30
- Time limit
- 35 min
- Pass mark
- 70% · 21/30
- Question bank
- 30
Free, no sign-up. Retake as many times as you like — the questions are reshuffled, with the answer order changed.
Sample questions
01What does PoE stand for?
- APoint of Entry
- BPower over Ethernet
- CPort over Ethernet
- DProtocol over Ethernet
Why: PoE stands for Power over Ethernet, technology that delivers electrical power over Ethernet cables.
02How many of the four pairs carry power in standard PoE (IEEE 802.3af)?
- AOne pair
- BAll four pairs
- CThree pairs
- DTwo pairs
Why: Standard 802.3af PoE delivers power over two of the four pairs (the data pairs in Alternative A or the spare pairs in Alternative B); all four pairs are only used in 802.3bt.
03What maximum power reaches the powered device with PoE+ (IEEE 802.3at)?
- A25.5W
- B60W
- C30W
- D15.4W
Why: 802.3at (Type 2) sources up to 30 W at the port, of which up to 25.5 W reaches the powered device after cable losses.
Common questions
Is the Network Applications & PoE mock exam free?
Yes, it is free with no sign-up needed. Questions are pulled at random from a substantial bank, with a worked explanation on every question after you submit.
Can I retake the mock exam?
Yes. Every attempt picks a different random selection and reshuffles the options, so each retake gives you genuinely new questions. No limit on retakes.
Does this count as a qualification?
No. This is independent practice material and does not award a qualification, card or certificate. Where a subject has a formal qualification or card, you gain it through an approved provider.