Intrvw: Difference between revisions
→Google GCP Workspaces
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Line 1:
= Google GCP Workspaces =
* Code:
<syntaxhighlight lang='python'>
with open('tab.txt','r') as tab, open('csv.txt','r') as csv, open('data.txt','w') as data:
for line in tab.readlines():
data.write(' '.join(line.strip().split('\t'))+'\n')
for line2 in csv.readlines():
data.write(' '.join(line2.strip().split(','))+'\n')
data.close()
with open('data.txt','r') as file:
for line in file.readlines():
print(line)
</syntaxhighlight>
* Code2:
<pre>
def analyze(numbers):
result = []
index = {}
min = None
max = None
for n in numbers:
index[n] = True
if not max or n > max:
max = n 9
if not min or n < min:
min = n 0
for n in range(min + 1, max):
if not n in index:
result.append(n)
return result
analyze()
4,5,6,7,8
3rd
0—-
analyze([5,9])
(6,9)
result = [6,7,8]
analyze([3,0,5,9])
4,3
Result = [1,2,4,6,7,8]
</pre>
* Equivalent Code:
<pre>
def analyze(numbers):
min = None
max = None
for n in numbers:
print(n)
if not max or n > max:
max = n
if not min or n < min:
min = n
print("max: ",max," min: ",min)
</pre>
* Results:
<pre>
>>> analyze([3,0,5,9])
3
max: 3 min: 3
0
max: 3 min: 0
5
max: 5 min: 5
9
max: 9 min: 5
</pre>
* Logic:
<pre>
>>> min = None
>>> not min
True
>>> min = 0
>>> not min
True
</pre>
* Working code for Min & Max:
<pre>
def analyze(numbers):
min = 0
max = 0
for n in numbers:
print(n)
if n > max:
max = n
if n < min:
min = n
print("max: ",max," min: ",min)
</pre>
= Amzn SysDE II =
Line 9 ⟶ 119:
* Coding
<syntaxhighlight lang='python'>
## Write a function that gives you the average latency in a log file with the following format
#
Line 77 ⟶ 188:
avg_lat('/var/log/syslog')
</syntaxhighlight>
;Debrief
<pre>
feedback - team liked, pleasure in interview
strong NW
stron linux
LP fine
L4 is not good for you
System design not good
DB using indexing, Queues, scalable, parallel approach, LB using, indexing DBs, instead of storage.
Coding was also OK, difficulty with dictionary
Should know Datastructures not algorithms
Try again in 6 months, ask HR & try to get exception.
</pre>
* Correct Code:
<pre>
latency ={}
occurrance = {}
with open('latency2.logs','r') as file:
for line in file:
lat = int(line.split()[-1])
oper = line.split()[-2]
if oper in latency.keys():
add_latency = latency.get(oper) + lat
occurrance.update({oper:occurrance.get(oper)+1})
else:
add_latency = lat
occurrance.update({oper:1})
latency.update({oper:add_latency})
print(latency)
print(occurrance)
for k,v in latency.items():
print(k,int(v/occurrance.get(k)))
</pre>
Line 83 ⟶ 232:
* SSL Handshake
* TCP 3-Way Handshake
* TLS 1.0 vs TLS 3.0
* curl -kv (meaning of k)
* HTTP
= Microsoft =
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