What are the common transformations in apache spark?

303

---

What is the difference between dataset and dataframe in spark?

384

---

What is distributed cache in spark?

364

---

What is catalyst framework in spark?

322

---

How is dag created in spark?

304

---

What does spark do during speculative execution?

344

---

What is heap memory in spark?

281

---

What is external shuffle service in spark?

318

---

What is spark client?

296

---

Which are the various data sources available in spark sql?

304

---

Can you run spark without hadoop?

330

---

What is tungsten engine in spark?

337

---

What is stage and task in spark?

249

---

What is spark execution engine?

388

---

Is spark sql a database?

279

---