From 7a651baa7792a77c34f72411d67a657990e3b180 Mon Sep 17 00:00:00 2001 From: abregman Date: Sun, 1 Dec 2019 18:23:47 +0200 Subject: [PATCH] Add questions --- README.md | 52 ++++++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 46 insertions(+), 6 deletions(-) diff --git a/README.md b/README.md index 29a5f42..7e5b77e 100644 --- a/README.md +++ b/README.md @@ -2,7 +2,7 @@ :information_source:  This repository contains interview questions on various DevOps and SRE related topics -:bar_chart:  There are currently **541** questions +:bar_chart:  There are currently **551** questions :books:  To learn more about DevOps check the resources in [DevOpsBit.com](https://devopsbit.com) @@ -666,6 +666,10 @@ CSMA/CD algorithm: What is a proxy? How it works? What do we need it for?
+
+What is TCP? How it works? What is the 3 way handshake?
+
+
What is the difference between TCP and UDP?
@@ -673,11 +677,15 @@ TCP establishes a connection between the client and the server to guarantee the
-Explain "default gateway"
+True or False? TCP is better than UDP
-How TCP works? What is the 3 way handshake?
+What TCP/IP protocols are you familiar with?
+
+ +
+Explain "default gateway"
@@ -728,6 +736,18 @@ TCP establishes a connection between the client and the server to guarantee the What is NAT? How it works?
+
+What is latency?
+
+ +
+What is bandwidth?
+
+ +
+Which factors affect network performances
+
+ #### :star: Advanced @@ -767,6 +787,14 @@ TCP establishes a connection between the client and the server to guarantee the Explain Spine & Leaf
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+What is Network Congestion? What can cause it?
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+ +
+What can you tell me about UDP packet format? What about TCP packet format? How is it different?
+
+
Using Hamming code, what would be the code word for the following data word 100111010001101?
@@ -1068,7 +1096,7 @@ Soft links can be created between different file systems while hard link can be
-What is chroot?
+What is chroot? In what scenarios would you consider using it?
##### Processes @@ -1387,7 +1415,7 @@ These system calls are reading the file /my/file and 5 is the file
-What are cgroups? In what scenario would you use them?
+What are cgroups?
@@ -3545,7 +3573,7 @@ the pseudo table to retrieve the sum of the prices spent by each customer, then
-Do you think open source project is more secured when compared to a proprietary software?
+What is DNS Spoofing? How to prevent it?
@@ -3811,6 +3839,18 @@ While an A record points a domain name to an IP address, a PTR record does the o Is DNS using TCP or UDP?
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+What is Round Robin DNS?
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+ +
+What is DNS Record TTL? Why do we need it?
+
+ +
+What is a zone? What types of zones are there?
+
+ ## General Although the following questions are not DevOps related, they are still quite common so it's better to prepare for them as well.