Heatwave, halted trains, Paks risk: how well did you follow today's Hungary news?

Heat straining phone networks, new GYSEV trains, a shrinking Danube and nuclear-plant risk — see how up to date you are on today's Hungary news.

1. According to One, which network infrastructure is most vulnerable to disruption from the heat?
2. How many new InterCity trainsets has GYSEV completed, which Dávid Vitézy says János Lázár tried in vain to prevent?
3. What did Péter Magyar warn about regarding the Danube's low water level?
4. According to DW News, what did Hungary and Romania actually do because of the Danube's low water level?
5. What is MÁV warning about for the coming days?
6. Which well-known media personality is affected by the reshuffle between ATV and MTVA?
7. What profession does the presidential candidate nominated by Mi Hazánk have?