Which one is the master node in HDFS? Can it be commodity hardware?

39

---

Explain conductivity?

580

---

Explain the flexible search and its usage? How is it related to sql?

5

---

What type of security is needed in web services? Explain

351

---

please briefly explain calculating or estimating steel quantity for a RCC column?

1452

---

---

How do you create a database for an organization?

480

---

Draw a diagram showing how the operating system relates to users, application programs, and the computer hardware ?

2128

---

What is difference between first and firstordefault?

503

---

What is the need of angular 2?

440

---

What are the name and the uid of the administrator user?

574

---

Does python perform tail recursion optimization?

513

---

What do you mean by composition in java?

576

---

What is a rollup component?

637

---

What is the difference between remoting and webservice?

531

---

Tell me what is seo and introduce its types?

457

---