1) Tell me about PKI. (went into details until:) What are the fields of a certificate? 2) How would you debug if the user tells that the app is slow? (went into details until:) Memory leak detection? DB query optimization? How do you stress-test a gigabit network link? 3) Tell me about Java memory. (went into details until:) GC strategies, sun.misc.Unsafe
Why do you want this job?
with your varied background why do you want to move into hadoop and big data.
- technical background, experience - Hadoop/HDFS knowledge - future plans, carrier path
How to check the reason for failure for a Java App on Linux?
Describe similarities and differences of Hive and a Impala Draw the architecture diagram for Impala
1. Docker and kubernetes. 2. JVM related ex: performance/slowness/tuning/GC analysis 3. Linux concepts ex; Slowness/high CPU etc 4. LDAP connectivity issues. 5. JVM Classloading. 6. SSL issues.
Qual sua experiência prévia no último emprego?
What is the Unix Command that you use to do a Server Health checks?
Do you know what is Hadoop? what is used for?
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