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Learner Reviews & Feedback for The Bits and Bytes of Computer Networking by Google

43,171 ratings

About the Course

This course is designed to provide a full overview of computer networking. We’ll cover everything from the fundamentals of modern networking technologies and protocols to an overview of the cloud to practical applications and network troubleshooting. By the end of this course, you’ll be able to: ● describe computer networks in terms of a five-layer model ● understand all of the standard protocols involved with TCP/IP communications ● grasp powerful network troubleshooting tools and techniques ● learn network services like DNS and DHCP that help make computer networks run ● understand cloud computing, everything as a service, and cloud storage...

Top reviews


Jan 25, 2018

A lot of information, but i feel like i fully understand core networking concepts. A lot of this info has helped me comprehend what will be required for me when I take my Network + certification exam.


Mar 29, 2020

what an amazing course, so much information and yet so easy to understand, would recommend going over a few of the videos and supplemental reading a few times, take the time needed, it'll be worth it.

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7551 - 7575 of 9,850 Reviews for The Bits and Bytes of Computer Networking

By Stacy G

Jun 12, 2019

A very nice, digestible introduction to a 5-layer networking model!

Drills all the way down to the packet and media layer where bits travel as electrical signals, explaining switching, routing, DNS servers and other core networking infrastructure. Google presents things in a nice fashion, with good diagrams, analogies and explanation throughout. This course isn't a replacement for CCNA or whatever other massively deep networking certifications exist out there, but it'll give you a great foundation to understand and perhaps entice you to learn even more!

So far, my favourite course from the Google IT Support Certificate Specialisation here (I'm on the final one now).

By Dave C

Aug 30, 2018

This course I rated a little bit less than the previous course because I feel like a lot of this information is very helpful, although I feel there should be more in this section on just making sure the users understand fully what is being taught and introduced and how its used with maybe more VR machines like used in the previous course. I loved that I learned a bunch of valuable information I just feel like the 5 layer network really does stump some people. I suggest possibly in the future doing a drag and drop diagram for the 5 layer network as well to have a better understanding of it. :D This course was very information heavy but awesome to learn!! :D

By Awsaf G

May 17, 2020

To me this was a hard course to understand. Some of the Modules and assignments should have had various examples and practice questions before the test/quizzes. One thing I did not like is there was very little feedback why we are wrong and how to approach the problem. I'm lucky that I am studying for Network+ and my CCNA so this was not so bad. However I quit this course a few months back because the content was not enough in my opinion to pass some of the exams. I had to youtube and learn from many other sources to find the answer and even the instructor showed Youtube videos instead of finding the answer from the provided content by google.

By Greg C R

Apr 24, 2021

The course tests are not graded correctly, specifically, IPv6 address compression. Google grades differently to what they teach. And, they're wrong with the grades on IPv6 compression.

I figured out what Google did wrong with this IPv6 compression quiz. In the grading, they implemented rule 2 incorrectly. The rule states you can replace 2 or more hextets of all zeros with a double colon. Google replaces just one hextet with a double colon.

5d66:5ec9:0046:0000:2576:004f:7159:0639 (original)

5d66:5ec9:46:0:2576:4f:7159:639 (correct, but Google calls it wrong)

5d66:5ec9:46::2576:4f:7159:639 (incorrect, but Google calls it correct)

By Elax H

Feb 7, 2019

This course was very complicated and it's some very good material to learn. I do think it needs to be broken down further and more interactive. Most of it was just talking and telling definitions which for something like this makes it hard. In the beginning when there was the router and switch comparison to sending mail and how you receive it was fantastic! If more is done for other concepts like this, maybe using sport terms or doing something for the mail delivery again but in more depth, then maybe more will get the hang of it. It took me forever to pass due to it's difficulty and my limited time but I finally did it.

By albert v

Nov 30, 2021

It's a good course and learned enough information to get me by in a midocure conversation on this subject. Like every process of learning something new, it is a challenge and worth it. This could of just been me but the way the course is broken down is intense for someone who has no knoledge in this catergory. I had to put in extra hours looking up things and watching videos on other sites to understand what this couse was talking about in their short videos. In a nut shell they gave me a path to fallow and I liked the challenge, I just wish it was updated and had more resourses on the spot to help me understand.

By Carl S

Apr 3, 2022

Definitely a harder module than the first. Lots of new concepts. I would give it 5 starts but there were some breezy passages that warranted more explination, and maybe from a different present to make sure you got a diverse look at the topic. I'm looking specifically at subnetting, and the process of the three way handshake over networks. I had to go to external sources to bine up on these. There were some stinkers of questions in the quizes that had wording ambiguous or contrary to video content, but that is a given in even college coursework. Over all I learned a bunch and enjoyed the process. Onto the next.

By Steven G

May 25, 2020

This is really a step up, from module 1, however it is impossible to know and learn everything about networking. If people going on the will find that CompTIA or Cisco having a different approach to things, said this Google setting the baseline here, and people interested in this field should look for CompTIA Network + certificate, rather Cisco since it is vendor based and mostly you can see it as training for their own products than anything else, not every company has the money for the high end equipment. Therefore it is good to know the fundamental things disconnected from any specific branded soft/hardware.

By Wyatt M

Feb 23, 2020

There are a lot of wording errors in the class that i end up having to guess on the quizzes, tests, and projects. For instance in the class it states that you put "::" instead of having "consecutive groups of just zeros". Nothing about a single group of zero's. When it came to the project, there was a single group of a zeros and I was just talking out the leading zeros as per the first rule of shortening an IPv6 address, but after a few times of going back to the videos and making sure I am doing what they say, I try to just use the double colon and it worked. This only one instance, but they are all over.

By luis o

Jul 21, 2020

I really recommend this program to any age group person. thanks to this program I am nowt so intimidated when I see ERRORS pop up on my screen and I now feel capable fixing or trying it on my own, and that's good coming from a person that would go on panic mode when turn on the computer and I could not get on. And things words like bandwidth would not registrar in my head what it meant and how that impacts your hole process to operate smoothly or how to access your command prompt and all the features that are in it. Anyways, this program is absolutely worth the time and effort you will put in to it.

By Cristina d Q

May 10, 2020

This certificate was much more difficult for me. A lot of information to take in at once. The presentation format is the same as the other certificate I completed and do like the various ways the information is presented. I think with the information I need it to be with more examples and even broken done to more videos and slower. Some videos were 5 to 7 minutes long with lots of info. Even if I watched over and over again the information is presented in the same manner. I still enjoy what I am learning. I think it was this particular topic that was difficult for me to wrap my head around it.

By Benjamin P

Jan 19, 2021

The concepts introduced in this course are very complicated, particularly for those uninitiated in the technical aspects of the internet and computer networking. It was a very challenging course to understand, but very rewarding to complete. My one criticism would be that some of the lectures fell a bit flat on explaining these complex systems, and i usually resorted to accessing supplemental learning elsewhere in order to fill the gaps. Perhaps going forward instructors can implement the use of some graphics or even a dry-erase board to physically draw out and explain these complex ideas in detail.

By Thélesson d S

Jul 7, 2020

The course itself is good, but if you do not have prior knowledge, I believe that it will be difficult to understand many of the concepts covered. It has a very extensive content, with many theoretical classes that explain each layer in detail. I believe that many of the negative evaluations of this course are due to the extensive applied theory. It is useful to know each concept in detail, but in daily professional support, a practical approach can be more useful.

At least in relation to the course I took at the university, this course in theory went beyond the content of an entire semester.

By Kay L

Apr 8, 2021

Very technical course and packed with tons of concept about networking. The reason for 4 stars because I felt that concepts are introduced quite rushly. Resulting overwhelming of information, and students might only hear about a concept in a few lines before it jumps straight to the next concept. I understand the reason might be to pack some much info in a less than 10minutes video, but still it can put alot of people off as many of these concepts are very complex and it can be hard to get a grasp without a detailed explaination before rushing through to the next concept.

By Marshall H

Aug 16, 2019

I loved the course and learned a lot from it. I came into this thinking that I knew more than I did and I was blown away by how much information there is. However, I looked at it as an opportunity to learn more and absorb everything I can from the course. The only complaint I would have about this course and other courses within this certification program would be the tests and quizzes seem too easy. The final quiz at least should be a test you can take only once to really test the knowledge and add a little pressure to really sink the knowledge into your brain.

By Kassidey I

Jan 19, 2022

It was a good course. I did struggle a little, because it was a lot of information. I think it would be a great idea to add a little refresher at the end of each section. It could be in video form or even just a written-out synopsis of the section. I think this would be good for students, like me, who do a section every couple of days. I may start a course on Monday, and then wait until Friday to finish it. It's sometimes hard to recall what I learned back on Monday, so that is why I think a synopsis after each lesson would be very beneficial.

By Jason W

Sep 25, 2022

The setting frequency quiz/test is very vague and provides no discernable parameters which to understand and develop the required knowledge to pass the assessment. Extremely frustrating and does not faciltate critical thinking and accurate problem solving. There's no feedback to help the candidate understand their mistakes and more importantly how to correct them. I.e. what is acceptable and why most importantly what is not acceptable and why.

Other than this, these courses are very well done. But the above is EXTREMELY below average.

By Justin M

Apr 9, 2018

Incredibly informative course giving a broad overview of network fundamentals, basic troubleshooting, and giving an understanding of the 5-layer system while also providing information about Cisco's 7-layer model.

Rated 4 stars because there are some fairly minor inconsistencies with video quality - some of the earlier videos don't include subtitles, while others had multiple corrections added; later videos don't have this issue, and it's nothing that detracts too much from the course itself - highly recommended.

By Eduardo L

Nov 9, 2020

The course was good. It was full of lots of good information, and it provided a good framework for learning about networking. However, I felt that some of the assessments were faulty and it caused a lot of frustration, not just for me but for many other people taking this course. I hope something is done to fix those assessments. Also, I wish there was more hands on learning. The course was very conceptual, and although the diagrams from the videos helped, it wasn't enough to help provide a deep understanding.

By Monte A

Mar 14, 2020

I really enjoyed this course and the complexity of it as well. I would have liked to have something at the end that would give a broader view with examples of how each of the parts of this course worked together so that it was easier to understand as a unit. Although I got through it and understand the individual parts, I found that sometimes it was taken for granted that you would have an understanding of that higher view when advancing to the the next videos. At least as far as the tech language went.

By Jose L G M

Feb 9, 2022

I like very much the content, which I use as a study guide and it is very up-to-date. I do not like the lack of a methodology, we don't get exercises to practice before being tested and the platform itself is a real headache sometimes because of the way questions are asked and the answers that are expected. But all in all, I appreciate the information. The other thing you need to know is that this course prepares you mostly for the CompTIA FTI exam, not the A+ exam. So, make your inform decision then.

By Siddhartha M

Sep 29, 2020

Networking is a vast concept in IT. Yet, this course covered all topics an individual needs to know. I was never fond of Computer Networking, but after completing this course, I can say that I am confident if I had to describe the components of networking and how it works. I might still need to brush up some concepts and rewatch some lectures to let some topics sink in as this was a very lengthy yet informative section. But for now, I am satisfied with what I have learned in this module.

By Andrea H M

Aug 7, 2020

I'm grateful to be able to take a course like this for such an affordable price at my own pace. The two big things I felt were missing were a list of relevant vocabulary and definitions that we could reference without having to read through all the text and a way to take notes without having to copy a line from the text. It would be amazing if there was a way to make digital flash cards! Those changes would make my study materials more cohesive and comprehensive within Coursera itself.

By tam c

Jan 25, 2023

I think week two could present crisper lessons on subnetting. In particular, how to use binary math, the IP

address, the network ID, and subnet mask to designate how nodes are identified in the network. I found the cloud quiz challenging with just the lessons, and tended to get lost in the presenter saying " warning, dense material ahead." I actually googled some outsde resources and am going to continue investigating the process. I do think binary math is incredible and a bit fun.

By Catalin-Leonida C

Mar 18, 2022

Needed more (or any, really) hands-on experience, and more challenging end-of-module projects for 5 stars. The theory part was great as a foundational reference on which to build up. As a web developer it also gave me a way better understanding of what happens behind the scenes, which was really helpful. If I ever decide to continue my education in networking I would follow this up with the CCNA curriculum, but I will probably just stick to improving in my developer career.