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Topics

Header text	Header text
OSs
Algorithms
Web technologies HTML, CSS OSI layers IP Tcp Udp ICMP HTTP/HTTPS Caching DNS How does internet work How do browsers work APIs Authentication Cookies Email Architecture of the web How to optimize web applications Latency Routing Static routing BGP, OSPF in Linux load balancing,
Databases Basic SQL Relational database DB Designing Indexing
Debugging
Distributes system
Clouds
Infrastructure and system administration Shell scripting logging initalization software packaging and distribution Kernel libraries system calls memory management permissions file systems for Linux/Unix or Windows
Container technologies Kubernetes Docker

• Platform & OS
• Pros & Cons
• Big Data and Machine Learning: Relational and non-relational databases
• Big Data analytics and frameworks like MapReduce, Hadoop and Spark.
• Machine learning/artificial intelligence, like TensorFlow.

Preparations

• 1st round
• 1st Week Dec starting

• Video interview

coding
tech 
communication
thinking

• 1 Hour:

1st Troubleshooting code
Distributes system
Web & Network technologies

• F2F - Bangalore office

2 tech Networking/General Web troubleshooting
1 manager

• Share use cases
• Working with Code (15 min)
• What is code, Issue & How to improve it.

• Ask question about question
• Break it down

• No IDE
• No library

Questions

• Unix System call that takes path & returns inode name

stat()

• Signal sent by kill command by default

TERM

• HTML -> Div vs SPAN

Block vs inline

• Quick sort -> run time

n log n

• Fastest to slowest:

CPU
Memory
Context switching
Disk

Disk access may be significantly faster at times due to caching ... so can memory access (CPUs sometimes manage a caches from main memory to help speed up access and avoid competition for the bus).
Memory access could also be as slow or slightly slower than disk access at times, due to virtual memory page swapping.
Context switching needs to be extremely fast in general ... if it was slow then your CPU could begin to spend more time switching between processes than actually performing meaningful work when several processes are running concurrently.
Register access is nearly instantaneous.