All road signs
IS2aDirection sign for approach to a road for motor vehicles (straight ahead, left or right)
IS2bDirection sign for approach to a road for motor vehicles (straight ahead, left or right)
IS2cDirection sign for approach to a road for motor vehicles (straight ahead, left or right)
IS2eDirection sign before a slip road to a road for motor vehicles (straight ahead, left or right)
IS2fDirection sign before a slip road to a road for motor vehicles (straight ahead, left or right)

IS2dInformative sign
IS2d Direction sign before a slip road to a road for motor vehicles (straight ahead, left or right)
Marks the direction of a slip road to a road for motor vehicles, its destination or destinations, and its number.
In Czech
The exam is in Czech, so it is worth knowing the Czech name. Below is the official text from Czech law, which is not translated.
Směrová tabule před nájezdem na silnici pro motorová vozidla (přímo, vlevo nebo vpravo)
Značka vyznačuje směr nájezdu na silnici pro motorová vozidla, její cíl (cíle) a číslo.
Příloha č. 5 k vyhlášce č. 294/2015 Sb., ve znění vyhlášky č. 205/2025 Sb.
Similar signs
IS2aDirection sign for approach to a road for motor vehicles (straight ahead, left or right)
IS2bDirection sign for approach to a road for motor vehicles (straight ahead, left or right)
IS2cDirection sign for approach to a road for motor vehicles (straight ahead, left or right)
IS2eDirection sign before a slip road to a road for motor vehicles (straight ahead, left or right)
IS2fDirection sign before a slip road to a road for motor vehicles (straight ahead, left or right)