Paypal Interview - Unix Admin

phone

automation and tooling

patching os/db
automation could be better
big data sotres

inhouse tool enterpise manager
reporting/auditing

unix stack/solaris

700 oracle stack. unix
2800 linux nosql
100 ins
6000 hadoop hosts

google cloud for dev/test

mesos
'restricted zone'
tools not able to enter

puppet pipeline
cfengine for solaris

puppet 3 not good design.
each puppet master corresponds to a git repo
production github
puppet 4 end of year supposed.
monitor puppet agent.

database hosts
how to be up
password rotation through puppet
always 100 hosts not applied.
headache

ansible.

oracle db
20% critical. manual.
70% can be automated.

large org: db infrastructure

4 full time emplyees. me 5th.
oracle security engine
audit teams

ast:
tls development
tls 1.2
every db

brendt:
sys adm
system internals
program mysql for
work with system engineering team
test in lab <--- br="">
steven:
software developer
python
data quality, dashboard, monitoring
2 contractors work with him

1 person in india with 2 contractors.

182 people in core data platform team
- storage engineering
- system engineering

------------------------------------------

Onsite

10-10:45am
linux
python
bash

10:45-11:15am
what is ssl/tls certificate
what is the relationship between ssl and symmetric and asymmetric encription.
how do you ssh w/o passwd
public key private key

chmod 755
rwxr-xr-x
chmod 2755
rwxr-sr-x

ashwin report to sarah

patch Oracle
patch OS
import os patch to oracle management tool first.
one button patch

11:15am-12pm

1 person brent in scottdale.
lab is in scottdale.
need visit a couple weeks for first few months.
recruiting same time at az and bay area. whichever first.
1 full time in india

5 person in total.
meet using video conferencing.

li = ['A', 'B', 'C', 'D', 'E']

print 'in order:'
for c in li:
    print c

print
print 'reverse order:'
for c in li[::-1]:
    print c

def fib(n):
    if n == 1 or n == 2:
        return 1
    return fib(n-1) + fib(n-2)

# print all the fib numbers smaller than 30
res = []
k = 1
while fib(k) < 30:
    res.append(fib(k))
    k += 1

print res

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CKA Simulator Kubernetes 1.22

https://killer.sh Pre Setup Once you've gained access to your terminal it might be wise to spend ~1 minute to setup your environment. You could set these: alias k = kubectl # will already be pre-configured export do = "--dry-run=client -o yaml" # k get pod x $do export now = "--force --grace-period 0" # k delete pod x $now Vim To make vim use 2 spaces for a tab edit ~/.vimrc to contain: set tabstop=2 set expandtab set shiftwidth=2 More setup suggestions are in the tips section . Question 1 | Contexts Task weight: 1% You have access to multiple clusters from your main terminal through kubectl contexts. Write all those context names into /opt/course/1/contexts . Next write a command to display the current context into /opt/course/1/context_default_kubectl.sh , the command should use kubectl . Finally write a second command doing the same thing into /opt/course/1/context_default_no_kubectl.sh , but without the use of k

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