A daily phone-bill search — speed, caps, and when to switch. This page has 100 important questions and answers. Original explainer for daily search — not a government login or live tracker.
Wi‑Fi uses a local router (home, office, café) on broadband. Mobile data uses your SIM on 4G/5G and counts against a prepaid/postpaid pack. Apps do the same work on both; the pipe and the bill differ.
Home Wi‑Fi is usually cheaper per gigabyte if the broadband is unlimited. Café Wi‑Fi can be watched — use HTTPS and avoid banking on open networks without a VPN. Mobile data is for the street and for tethering a laptop when the fibre is down.
“Wi‑Fi calling” is voice over the router, not extra data from the tower. A full-quality video upload on mobile data can burn a 1.5 GB pack in minutes.
100 important questions. Quick 10 is a random set; Full set plays every question.
Your score
100 questions and answers
Each item is a 4-option MCQ. Open a question, tap A–D. Green is correct, red is wrong. Original explainers — not copied match reports.
1. WPA3 / a strong Wi‑Fi password beats
Tap A, B, C or D.
Answer: D) an open “Welcome_Guest” with your NAS on the same LAN
Change default router logins.
2. SMS OTPs still need
Tap A, B, C or D.
Answer: D) the mobile network even if you are on Wi‑Fi
No signal, no SMS; TOTP still works.
3. Wi‑Fi calling in a basement can
Tap A, B, C or D.
Answer: B) save a call when the tower is weak
The operator must enable it.
4. A “5G Wi‑Fi” sticker on a cheap extender is
Tap A, B, C or D.
Answer: C) often just 5 GHz Wi‑Fi, not 5G cellular
Read GHz vs G carefully.
5. Background app refresh on mobile
Tap A, B, C or D.
Answer: B) keeps eating the pack while you sleep
Restrict hungry apps.
6. A family data-share pack is still
Tap A, B, C or D.
Answer: A) mobile data split across SIMs
One heavy user empties it.
7. Fair-use “unlimited” mobile after a cap can
Tap A, B, C or D.
Answer: A) slow to 2G-ish speeds
Read the plan PDF.
8. HTTPS on a café is
Tap A, B, C or D.
Answer: B) better than HTTP, not a full threat model
Banking is still safer on your pack or home Wi‑Fi.
9. A work MDM profile may
Tap A, B, C or D.
Answer: D) block personal hotspot or café Wi‑Fi
That is the employer’s pipe rules.
10. Streaming music at “normal” quality uses
Tap A, B, C or D.
Answer: D) far less than 4K video, still not zero
Offline playlists help.
11. This explainer is not
Tap A, B, C or D.
Answer: C) an operator prepaid plan
Check your own remaining GB.
12. Airplane mode plus Wi‑Fi is
Tap A, B, C or D.
Answer: A) how you use the café without the tower
Useful on a pack you want to freeze.
13. A travel eSIM is
Tap A, B, C or D.
Answer: C) another mobile-data pipe, not hotel Wi‑Fi
Install it before you land if the shop says so.
14. Mesh satellites in the garden still
Tap A, B, C or D.
Answer: A) need the same broadband account
Walls, not AQI, usually kill signal.
15. A phone that says “H+” is
Tap A, B, C or D.
Answer: A) older 3G-ish mobile data, often slow
Move to a 4G/5G pack if you can.
16. Tethering taxes or extra hotspot GB on some US plans mean
Tap A, B, C or D.
Answer: C) the laptop can have a different cap than the phone
Read that carrier’s hotspot line.
17. Auto-play video in social feeds on mobile is
Tap A, B, C or D.
Answer: D) a silent pack killer
Turn auto-play off in the app.
18. A dual-band router’s 2.4 GHz vs 5 GHz is
Tap A, B, C or D.
Answer: A) Wi‑Fi radios, not 2G vs 5G cellular
5 GHz is often faster and shorter-range.
19. Wi‑Fi vs mobile data is not
Tap A, B, C or D.
Answer: C) a moral test — it is a pipe and a bill
Use Wi‑Fi for big downloads when it is yours.
20. If both icons are on, many phones
Tap A, B, C or D.
Answer: D) prefer Wi‑Fi for app traffic
Turn Wi‑Fi off if the café is broken and you need the pack.
21. A “data saver” mode
Tap A, B, C or D.
Answer: D) throttles backgrounds; it does not create fibre
You still see a cap.
22. This page does not
Tap A, B, C or D.
Answer: B) switch your radio for you
The control centre toggles do.
23. The official source for “wifi vs mobile data” (learn desk, item 1) is
Tap A, B, C or D.
Answer: A) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
24. The official source for “wifi vs mobile data” (learn desk, item 2) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
25. The official source for “wifi vs mobile data” (learn desk, item 3) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
26. The official source for “wifi vs mobile data” (learn desk, item 4) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
27. The official source for “wifi vs mobile data” (learn desk, item 5) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
28. The official source for “wifi vs mobile data” (learn desk, item 6) is
Tap A, B, C or D.
Answer: B) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
29. The official source for “wifi vs mobile data” (learn desk, item 7) is
Tap A, B, C or D.
Answer: A) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
30. The official source for “wifi vs mobile data” (learn desk, item 8) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
31. The official source for “wifi vs mobile data” (learn desk, item 9) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
32. The official source for “wifi vs mobile data” (learn desk, item 10) is
Tap A, B, C or D.
Answer: A) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
33. The official source for “wifi vs mobile data” (learn desk, item 11) is
Tap A, B, C or D.
Answer: B) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
34. The official source for “wifi vs mobile data” (learn desk, item 12) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
35. The official source for “wifi vs mobile data” (learn desk, item 13) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
36. The official source for “wifi vs mobile data” (learn desk, item 14) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
37. The official source for “wifi vs mobile data” (learn desk, item 15) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
38. The official source for “wifi vs mobile data” (learn desk, item 16) is
Tap A, B, C or D.
Answer: A) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
39. The official source for “wifi vs mobile data” (learn desk, item 17) is
Tap A, B, C or D.
Answer: B) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
40. The official source for “wifi vs mobile data” (learn desk, item 18) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
41. The official source for “wifi vs mobile data” (learn desk, item 19) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
42. The official source for “wifi vs mobile data” (learn desk, item 20) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
43. The official source for “wifi vs mobile data” (learn desk, item 21) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
44. The official source for “wifi vs mobile data” (learn desk, item 22) is
Tap A, B, C or D.
Answer: A) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
45. The official source for “wifi vs mobile data” (learn desk, item 23) is
Tap A, B, C or D.
Answer: B) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
46. The official source for “wifi vs mobile data” (learn desk, item 24) is
Tap A, B, C or D.
Answer: A) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
47. The official source for “wifi vs mobile data” (learn desk, item 25) is
Tap A, B, C or D.
Answer: B) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
48. The official source for “wifi vs mobile data” (learn desk, item 26) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
49. The official source for “wifi vs mobile data” (learn desk, item 27) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
50. The official source for “wifi vs mobile data” (learn desk, item 28) is
Tap A, B, C or D.
Answer: B) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
51. The official source for “wifi vs mobile data” (learn desk, item 29) is
Tap A, B, C or D.
Answer: A) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
52. The official source for “wifi vs mobile data” (learn desk, item 30) is
Tap A, B, C or D.
Answer: B) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
53. The official source for “wifi vs mobile data” (learn desk, item 31) is
Tap A, B, C or D.
Answer: A) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
54. The official source for “wifi vs mobile data” (learn desk, item 32) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
55. The official source for “wifi vs mobile data” (learn desk, item 33) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
56. The official source for “wifi vs mobile data” (learn desk, item 34) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
57. The official source for “wifi vs mobile data” (learn desk, item 35) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
58. The official source for “wifi vs mobile data” (learn desk, item 36) is
Tap A, B, C or D.
Answer: B) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
59. The official source for “wifi vs mobile data” (learn desk, item 37) is
Tap A, B, C or D.
Answer: A) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
60. The official source for “wifi vs mobile data” (learn desk, item 38) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
61. The official source for “wifi vs mobile data” (learn desk, item 39) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
62. The official source for “wifi vs mobile data” (learn desk, item 40) is
Tap A, B, C or D.
Answer: B) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
63. The official source for “wifi vs mobile data” (learn desk, item 41) is
Tap A, B, C or D.
Answer: A) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
64. The official source for “wifi vs mobile data” (learn desk, item 42) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
65. The official source for “wifi vs mobile data” (learn desk, item 43) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
66. The official source for “wifi vs mobile data” (learn desk, item 44) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
67. The official source for “wifi vs mobile data” (learn desk, item 45) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
68. The official source for “wifi vs mobile data” (learn desk, item 46) is
Tap A, B, C or D.
Answer: B) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
69. The official source for “wifi vs mobile data” (learn desk, item 47) is
Tap A, B, C or D.
Answer: A) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
70. The official source for “wifi vs mobile data” (learn desk, item 48) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
71. The official source for “wifi vs mobile data” (learn desk, item 49) is
Tap A, B, C or D.
Answer: C) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
72. The official source for “wifi vs mobile data” (learn desk, item 50) is
Tap A, B, C or D.
Answer: D) the authority or standard named on this page’s explainer
GKSchools English practice is original — not an official script.
73. Mobile data travels via
Tap A, B, C or D.
Answer: D) your mobile network (4G/5G)
The SIM and pack matter.
74. Home Wi‑Fi usually rides
Tap A, B, C or D.
Answer: B) a broadband connection into a router
Many devices share it.
75. A data cap is
Tap A, B, C or D.
Answer: C) how many GB your pack allows
Hotspot uses the same cap.
76. Open café Wi‑Fi is
Tap A, B, C or D.
Answer: A) riskier for banking than your own router
Use mobile data for OTP banking if you are unsure.
77. Wi‑Fi calling is
Tap A, B, C or D.
Answer: C) calls through the internet pipe, not extra tower data in the usual sense
Your operator must support it.
78. Tethering / hotspot
Tap A, B, C or D.
Answer: A) shares mobile data with a laptop
It drains battery and GB.
79. Video streaming on mobile
Tap A, B, C or D.
Answer: B) can finish a small pack quickly
Download on Wi‑Fi when you can.
80. Wi‑Fi vs data is not
Tap A, B, C or D.
Answer: A) the same as 4G vs 5G only
5G can still be mobile data.
81. A SIM pack’s “1.5 GB/day” is
Tap A, B, C or D.
Answer: D) mobile data, not home fibre
Hotspot counts in the same bucket.
82. Unlimited home broadband is usually
Tap A, B, C or D.
Answer: D) cheaper per film than burning a prepaid pack
Fair-use still exists on some plans.
83. 5G on the phone can still be
Tap A, B, C or D.
Answer: A) mobile data on a cap
The G is the radio, not the bill.
84. 4G LTE is
Tap A, B, C or D.
Answer: D) a mobile-network generation, not Wi‑Fi
You can have 4G data and Wi‑Fi in the same hour.
85. A dual-SIM phone’s data slider picks
Tap A, B, C or D.
Answer: B) which pack is the pipe
The other SIM can stay for calls.
86. VoLTE is
Tap A, B, C or D.
Answer: D) voice on the 4G data network, still usually not “Wi‑Fi calling”
Wi‑Fi calling is a separate toggle.
87. Public Wi‑Fi without a password is
Tap A, B, C or D.
Answer: B) easy to snoop if sites are plain HTTP
Prefer mobile data for banking.
88. A VPN on café Wi‑Fi can
Tap A, B, C or D.
Answer: D) hide the café from your traffic, not make a fake site honest
You still type the right domain.
89. Captive portals (Accept to get online) can
Tap A, B, C or D.
Answer: A) sit in front of café Wi‑Fi
Use them, then avoid banking if you are unsure.
90. Tethering a laptop to 5G is
Tap A, B, C or D.
Answer: B) hotspot; it drains the pack and the battery
Turn it off when you are done.
91. A 4K film download can be
Tap A, B, C or D.
Answer: D) several GB — do it on Wi‑Fi
Check the download toggle in the app.
92. App “Download on Wi‑Fi only” switches exist so that
Tap A, B, C or D.
Answer: A) updates do not eat the pack overnight
Turn them on if you are prepaid.
93. Video call bitrate on mobile
Tap A, B, C or D.
Answer: C) is often why the 1.5 GB vanishes by noon
Flip to audio if the pack is thin.
94. Cloud photo backup on mobile data can
Tap A, B, C or D.
Answer: A) upload your whole camera roll
Set it to Wi‑Fi only.
95. This page cannot
Tap A, B, C or D.
Answer: C) see your remaining GB
Open the operator app for the counter.
96. A home mesh Wi‑Fi system is still
Tap A, B, C or D.
Answer: B) broadband into the house, not 5G tower data
The SSID is local.
97. Fibre down + 5G hotspot is
Tap A, B, C or D.
Answer: B) the usual backup many flats use
Expect a slower, metered pipe.
98. Roaming mobile data abroad is
Tap A, B, C or D.
Answer: B) often expensive; airport Wi‑Fi is a different risk/reward
Buy a travel pack or eSIM the operator lists.
99. Wi‑Fi 6 on the box is
Tap A, B, C or D.
Answer: B) a local radio standard, not extra tower GB
Your phone and router both need it.
100. A guest Wi‑Fi SSID is
Tap A, B, C or D.
Answer: C) so visitors do not sit on your LAN shares
