What are merkle trees? How important are merkle trees in blockchains?

5

---

Hello,I would like to know the Technical Test Queries for B.P.O.So please reply to my queries at your earliest possibility.

2510

---

What you can do to remove data from the cache and query plans from memory for testing the performance of a query repeatedly?

1022

---

Explain data_null_?

1065

---

What are the basics of machine learning?

96

---

What are the DevOps tools?

5

---

What is the use if instanceof keyword?

1159

---

Name methods of clustering?

35

---

could i know the selection pattern at hpcl, am an undergradute in chemical technology, but my sujects or course do not figure out antwhere on the lists.

1919

---

What is row_number()?

988

---

Explain the difference between asp and asp.net?

1023

---

A number of combiners can be changed or not in MapReduce?

654

---

How can you find out if the current user is a member of the specified microsoft® windows nt® group or microsoft sql server™ role?

1042

---

Can we connect to postgresql using sql developer?

1012

---

Name the common type of ledgers that can be considered by users in Blockchain?

5

---