X-Ray

Question 1

Which AWS service is used to collect application traces and provides tools for viewing, filtering, and gaining insights into that data to identify issues and optimization opportunities?

Answer 1

AWS X-Ray

Question 2

What AWS X-Ray key-value pairs, with types such as string, number, or Boolean, are indexed for use with filter expressions and are used to group traces?

Answer 2

Annotations

Question 3

What AWS X-Ray key-value pairs can have values of any type, including objects and lists, but are not indexed for use with filter expressions and store additional trace data?

Answer 3

Metadata

Question 4

When testing an application locally using X-Ray Daemon, which option skips checking for EC2 instance metadata?

Answer 4

-o option
./xray -o -n us-east-2

Question 5

What AWS X-Ray feature allows you to control the number of requests recorded based on specific criteria, modifying sampling behavior dynamically?

Answer 5

Sampling rules

Question 6

What are the required fields in an AWS X-Ray segment?

Answer 6

• name
• id
• trace_id
• start_time
• end_time
• in_progress

Question 7

What are the optional fields in an AWS X-Ray segment?

Answer 7

• service
• user
• origin
• parent_id
• http
• aws
• error
• throttle
• fault
• cause
• annotations
• metadata
• subsegments

Question 8

What is the default port on which the AWS X-Ray Daemon listens?

Answer 8

2000

Question 9

Can the AWS X-Ray Daemon port be changed?

Answer 9

Yes, it can be changed during configuration using the CLI option ‘–bind’

Question 10

How many requests does AWS X-Ray record by default using sampling rules?

Answer 10

By default, X-Ray records the first request each second, and five percent of any additional requests