Wire encryption for data in transit in Hadoop - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is wire encryption in the context of data in transit?

Wire encryption means protecting data as it moves between computers or systems by turning it into a secret code. This keeps the data safe from anyone trying to listen in.

beginner

Why is wire encryption important in Hadoop environments?

Hadoop moves lots of data between nodes. Wire encryption stops attackers from stealing or changing this data while it travels, keeping the system safe and trustworthy.

intermediate

Name two common protocols used for wire encryption in Hadoop.

Two common protocols are TLS (Transport Layer Security) and SSL (Secure Sockets Layer). They create secure tunnels for data to travel safely.

intermediate

How does enabling wire encryption affect Hadoop performance?

Wire encryption adds some extra work to protect data, which can slow down data transfer a little. But this small delay is worth the improved security.

beginner

What is the difference between wire encryption and data-at-rest encryption?

Wire encryption protects data while it moves between systems. Data-at-rest encryption protects data stored on disks or files when it is not moving.

What does wire encryption protect in Hadoop?

A User passwords only

B Data moving between nodes

C Data stored on disk

D Hadoop configuration files

Wire encryption protects data as it moves between nodes in Hadoop.

Which protocol is commonly used for wire encryption?

A HTTP

B FTP

C TLS

D SMTP

TLS (Transport Layer Security) is commonly used to encrypt data in transit.

What is a downside of enabling wire encryption?

A Data transfer speed may decrease slightly

B Data becomes visible to attackers

C Data is deleted after transfer

D Hadoop stops working

Wire encryption adds processing overhead, which can slightly reduce transfer speed.

Wire encryption is different from data-at-rest encryption because it protects data when it is:

A Stored on disk

B Being processed in memory

C Backed up

D Moving between systems

Wire encryption protects data while it moves between systems.

In Hadoop, why is wire encryption critical?

A To secure data moving between nodes

B To speed up data processing

C To compress data files

D To manage user accounts

Wire encryption secures data as it travels between Hadoop nodes.

Explain what wire encryption is and why it matters in Hadoop data transfers.

Think about how data moves between computers and why it needs protection.

Describe the trade-offs when enabling wire encryption in Hadoop.

Consider both benefits and costs of encryption.