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Topics

Topics	% Done
OSs
Algorithms
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
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.

Topics 2

• Semaphores
• Mutex
• Threads

Questions

• What are alternative solutions of Spanning tree?

Port Isolation
Vlan Isolation
Loopback Detecttion