"Now, after you take a log backup, could you see a log file bigger than usual?"
No points for me. I perceive there being a difference between a "backup file" and a "log file". If someone says "log file" to me, I take it to mean the transaction log file, not the backup.
MARCUS. Why dost thou laugh? It fits not with this hour.
TITUS. Why, I have not another tear to shed;
--Titus Andronicus, William Shakespeare