![Naj Qazi](/img/default-banner.jpg)
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Naj Qazi
United States
Registrace 28. 08. 2020
As a seasoned tech expert in Silicon Valley with over 20 years of experience as a Computer Engineer and more than a decade as an IT Instructor, I’ve launched this channel to share my knowledge and guide you towards achieving your educational and career aspirations. Let's embark on this journey together and unlock your full potential! 💪
Areas I cover on this channel:
🚀 IT Career Development & Industry Insights!
👨💻 Network Engineering & Sales Engineering!
📚 Certifications: CCNA, CCNP & More!
If you follow this channel, I guarantee that you will find super valuable content that will turn you into a productivity monster and take your career to the next level. So what's holding you back? Hit subscribe and let's go 🚀
Areas I cover on this channel:
🚀 IT Career Development & Industry Insights!
👨💻 Network Engineering & Sales Engineering!
📚 Certifications: CCNA, CCNP & More!
If you follow this channel, I guarantee that you will find super valuable content that will turn you into a productivity monster and take your career to the next level. So what's holding you back? Hit subscribe and let's go 🚀
Cisco SDA vs Traditional Access Layer: The Game-Changer You've Been Waiting For
Did you know that Cisco SDA is a Campus SDN solution that can completely transform your network? 🤔
In this video, I explain the key design differences between the traditional access layer and the Cisco SDA access layer. 😎
This video is part of my popular Tech Nuggets series. The goal of tech nuggets is to cut to the chase & explain tech concepts in the form of small nuggets that you can consume right before walking into a customer meeting or a job interview. 🧳
Got feedback? I would love to hear your thoughts. Drop them in the comments section below 🚀
___________________________________________________
FOLLOW ME ON SOCIAL:
LinkedIn: www.linkedin.com/in/najqazi/
Instagram: naj.qazi
___________________________________________________
#najqazi#ccna#ccna200301
In this video, I explain the key design differences between the traditional access layer and the Cisco SDA access layer. 😎
This video is part of my popular Tech Nuggets series. The goal of tech nuggets is to cut to the chase & explain tech concepts in the form of small nuggets that you can consume right before walking into a customer meeting or a job interview. 🧳
Got feedback? I would love to hear your thoughts. Drop them in the comments section below 🚀
___________________________________________________
FOLLOW ME ON SOCIAL:
LinkedIn: www.linkedin.com/in/najqazi/
Instagram: naj.qazi
___________________________________________________
#najqazi#ccna#ccna200301
zhlédnutí: 169
Video
AI-Powered Networking: From Zero to SDA Hero in 11 Minutes!
zhlédnutí 500Před 14 dny
🚀 Ready to transform your network from zero to hero? Dive into my latest CZcams video: "AI-Powered Networking: From Zero to SDA Hero in 11 Minutes!" 🌟 Discover how to leverage Cisco Catalyst Center (formerly Cisco DNA Center) to revolutionize your campus network and deploy SDN with ease and efficiency. Whether you're a seasoned pro or just getting started, this guide will equip you with the ski...
Cisco ACI Explained: Master Spine-Leaf Architecture in Minutes!
zhlédnutí 652Před 28 dny
Are you prepared to elevate your data center network to new heights? Introducing Cisco ACI. ACI, or Application Centric Infrastructure, is a game changer in data center networks, unlocking the full potential of your network by eliminating most Layer 2 and Layer 3 bottlenecks. 😎 In this video, I delve into the following topics: - ACI Overview - ACI Physical Design: Spine, Leaf, and Endpoints - A...
3 Reasons for the Rise of SDN
zhlédnutí 244Před měsícem
Have you ever stopped to ponder what sparked the sudden rise of Software-Defined Networking (SDN)? 🤔 In this video, I'll share my perspective on three key reasons behind the rapid adoption of SDN in networking. 😎 This video is part of my popular Tech Nuggets series. The goal of tech nuggets is to cut to the chase & explain tech concepts in the form of small nuggets that you can consume right be...
Centralized vs Distributed Control Plane
zhlédnutí 176Před měsícem
In the world of Software Defined Networking (SDN), the control plane is centralized. How is that different from a distributed control plane? What are the pros and cons of each? 🤔 If these questions keep you up at night, you have come to the right place. In this video, I will walk you through a side-by-side comparison of a distributed control plane vs a centralized control plane 😎 This video is ...
REST API: HTTP Verbs | POST, GET, PUT, DELETE
zhlédnutí 266Před 2 měsíci
Dive into the core of network programmability with my latest video where I break down REST API’s HTTP verbs: POST, GET, PUT, and DELETE. Whether you're a beginner or looking to refresh your knowledge, this video simplifies complex concepts into digestible information, helping you to implement and troubleshoot your API interactions effectively 😎 This video is part of my popular Tech Nuggets seri...
What is an API? | Northbound & Southbound APIs Explained
zhlédnutí 410Před 2 měsíci
In the ever-evolving landscape of technology, understanding the backbone of digital communication is crucial. 🌐 Have you ever found yourself pondering over what APIs really are? Or what sets Northbound APIs apart from Southbound APIs? 🤔 Look no further! In my latest video, I unveil the mystique surrounding APIs, providing you with a comprehensive guide through the fundamentals of Application Pr...
Why so many SDN Solutions? ACI vs DNAC vs Viptela
zhlédnutí 271Před 3 měsíci
Have you ever been confused by the variety of SDN solutions available or struggled to understand Cisco's SDN portfolio? 🤔 If so, you're in luck. I just dropped a new video on my CZcams Channel, and in this video, I will guide you through the different SDN solutions offered by Cisco, starting with the ACI Solution for the Data Center Networking, followed by the SDA Solution for the Campus/Branch...
What is IPS? | Traditional IPS vs Next-Gen IPS
zhlédnutí 428Před 3 měsíci
Have you ever wondered how you can block malicious traffic in its tracks before it reaches your network endpoints? Wonder no more! 🚫💻 In this video, I delve into the world of IPS, offering a high-level explanation that unveils its significance in fortifying your network defenses. 💡 From understanding the core functions of a traditional IPS to exploring its limitations, I illuminate the pathway ...
Difference between Firewall and Next Generation Firewall
zhlédnutí 1,2KPřed 4 měsíci
Do you think you require a next-generation firewall (NGFW)? Do you know what distinguishes a traditional firewall from an NGFW? 🤔 In this video, I will elaborate on the differences between a traditional firewall and an NGFW. Furthermore, I will highlight the shortcomings of the traditional firewall and how the NGFW tackles those issues 😎 This video is part of my popular Tech Nuggets series. The...
What is a Firewall: Why do you need it?
zhlédnutí 494Před 4 měsíci
Are you concerned about the security of your network? Are there people trying to breach it, either from the outside or within your organization? These are no longer just fictional scenarios; they can have real and significant consequences for your business, finances, and reputation. How can you protect your network infrastructure from these cyber threats? 🤔 If you find yourself worrying about t...
What is DHCP Snooping and Dynamic ARP Inspection?
zhlédnutí 1,4KPřed 5 měsíci
Imagine a scenario where an attacker launches a DDoS (Distributed Denial of Service) attack on your network's Dynamic Host Configuration Protocol (DHCP) infrastructure. At the same time, they poison the Address Resolution Protocol (ARP) entries in your gateway switch, causing significant damage to your entire network. This type of attack could potentially disrupt your network's connectivity, le...
What is Port Security and How to Configure it?
zhlédnutí 337Před 5 měsíci
If a hacker walks into your office, they take an Ethernet cable and physically plug it into their laptop. Does that mean you are toast? 🤔 Unfortunately, this is a reality for many organizations today. But this doesn't have to be your fate. In this video, I show you how to protect yourself against physical infrastructure attacks. I provide a high-level overview of Cisco switch port security, and...
What is AAA Security?
zhlédnutí 361Před 5 měsíci
As cyber threats continue to evolve, AAA in cybersecurity has become more crucial than ever before. In cybersecurity, AAA stands for Authentication, Authorization, and Accounting. It's a security framework that helps control and track user access to a computer network 🔐 In this video, I provide a high-level overview of AAA. I then walk you through the differences between RADIUS and TACACS , whi...
Cyber Security Defense Techniques (Part 2)
zhlédnutí 217Před 6 měsíci
Cyber Security Defense Techniques (Part 2)
Cyber Security Defense Techniques (Part 1)
zhlédnutí 373Před 7 měsíci
Cyber Security Defense Techniques (Part 1)
Most Common Security Threats (Part 3)
zhlédnutí 243Před 8 měsíci
Most Common Security Threats (Part 3)
Most Common Security Threats (Part 2)
zhlédnutí 266Před 8 měsíci
Most Common Security Threats (Part 2)
Most Common Security Threats (Part 1)
zhlédnutí 434Před 8 měsíci
Most Common Security Threats (Part 1)
Wildcard Masks: What Are They And How Do They Work?
zhlédnutí 1,5KPřed 9 měsíci
Wildcard Masks: What Are They And How Do They Work?
What does Network Address Translation (NAT) do?
zhlédnutí 3,4KPřed 11 měsíci
What does Network Address Translation (NAT) do?
Quality of Service (QoS): Real World Perspective
zhlédnutí 1KPřed 11 měsíci
Quality of Service (QoS): Real World Perspective
Quality Of Service (QoS): What Is It And Why Does It Matter For Your Computer Network?
zhlédnutí 4,3KPřed 11 měsíci
Quality Of Service (QoS): What Is It And Why Does It Matter For Your Computer Network?
FTP Basics: What Is FTP And How Does It Work?
zhlédnutí 1KPřed rokem
FTP Basics: What Is FTP And How Does It Work?
Secure Shell (SSH) Overview and Configuration
zhlédnutí 479Před rokem
Secure Shell (SSH) Overview and Configuration
Get To Know Syslog: An Overview | Part 2
zhlédnutí 440Před rokem
Get To Know Syslog: An Overview | Part 2
Get To Know Syslog: An Overview | Part 1
zhlédnutí 1,3KPřed rokem
Get To Know Syslog: An Overview | Part 1
Short and concise video. Thank you
Appreciate your feedback. Glad it was helpful!
Keep shining, keep burning my love❤️
Love you and appreciate you 😘
Sir.first i wanna appreciate you for everything you have done here.May God in His infinite and majestic love and grace continue to be with you and yours.please i do have a question. Can i be able to take the cisco exam after taking this course?
Your kind words mean a lot. This course is your key to success. I recommend getting the official CCNA study guide to ensure you're fully prepared. You can find the link to the study guide in the video description. I hope this guidance proves valuable to you!
Always great content
Thank you!
Hi My Freind Pls start ACI Series thanks
Thanks so much for your feedback! I have a lot of topics to cover in the coming weeks and months, so I won't be able to focus exclusively on ACI. I hope you understand, and I really appreciate you sharing your thoughts!
Music so annoying.
This is one of my initial videos, and I was still learning how to create content. I admit that I could have done better without including music.
crisp and clear video mate !
Glad you liked it
Hi there, Could you please advise me the best way to move forward in terms of Studying, CCNA.. Would it be possible if you can guide me on this issue? Because I'm new to this and I would like to study it and move on to 1 day. Get a job in that field.
Absolutely! Here are the steps in simpler terms: 1. **Learn the Basics:** Start with the basics of networking. My course offers a great starting point. 2. **Get Study Materials:** Use Cisco's official CCNA study guide. 3. **Practice Hands-on:** Use tools like Cisco Packet Tracer to practice what you learn. 4. **Join a Group:** Study with others to stay motivated and get support. 5. **Do Practice Tests:** Take practice exams to get used to the test format. 6. **Be Consistent:** Study regularly and stick to your schedule. 7. **Network:** Connect with professionals in the field for advice and job leads. Stay focused, keep learning, and you'll get there. Good luck!
clear: ip route network ip address you with to target the netmask of this ip address then ip address of the next router's interface pointing towards us.
1. Is it possible to upload slides and provide a link in the description? If so, share slides. 2. What about CCNP & CCIE course are you planning to make its courses. Your way of explaining concept is exceptional and to the point. 👍👍👍
VTP stands for Vlan Trunking Protocol not Virtual Trunking Protocol.
You're absolutely right and thank you for pointing that out for others. I'll also make a note for others. Have a wonderful day ahead!
@@NajQazi Thanks for your efforts and work!
Go over eigrp please
Cisco Software-Defined Access (SDA) primarily leverages Intermediate System to Intermediate System (IS-IS) as the underlying routing protocol for its control plane. While Enhanced Interior Gateway Routing Protocol (EIGRP) is supported in the broader Cisco DNA architecture, it is not the default or recommended protocol for the SDA fabric control plane. EIGRP can be used in traditional network segments that connect to the SDA fabric, but the SDA fabric itself will rely on IS-IS for internal routing. Hope this helps!
@@NajQazi thank you sir
Another great video on SDN platform and thank you very much for all the hardwork
Music to my ears. Appreciate your feedback!
hey man thanks but i dont wana watch this video if thats cool?
LOL. Does AI scare you?
Thanks for the explainer video. This will help me immensely in a presentation later this week about AI and SDA! #cisco #AI
Glad it was helpful. Best of luck, brother!
Best video found over internet on sdwan ,thank you
Glad it was helpful!
Thank you so much Best explanation out there you are very underrated
I appreciate that!
Thanks a lot. I completely understand now.
Glad it helped!
Thank you
You're welcome
Amazing!
Thanks!
This might be a dumb question but is it possible to have traffic route automatically to different address if that certain address is down.
Great question! The simple answer is yes, you can use object tracking to achieve this. Object tracking allows you to monitor and track various objects. If you have an active/passive architecture, you can track the next hop of the primary route, which would be the IP address of your service provider's PE device. In the event that it goes down, object tracking can automatically facilitate failover. Hope this helps!
maybe i am just stupid.. but could u make ur explanation simpler
Could you elaborate?
What is interface here?
I am referring to a physical or logical interface on a Cisco router, switch, or firewall. I hope this helps!
Nice post, Thank You!
Glad you enjoyed it
Sir at 7:32:01, the example you solved involved /17, and you calculated out it will have 512 subnets, can you recheck and tell me as I did according you told to check the least significant bit in the modified subnet mask which I did it was only 1 so we will do 2 the power 1 which will be two so we will be having 2 subnets for /17, am I right, kindly confirm me and correct if I am wrong.
i luv u
Appreciate the love!
That was an awesome and clear explanation of what ACLs and ACEs are, but it would have been nice to see some examples of the function of real ACLs, like DENY ICMP or some other traffic manipulation... There seems to be so many logic bombs with ACLs, you can find yourself locked out of your own switch if you aren't careful...
I'm glad you enjoyed the video. I agree with you about the importance of being careful when applying ACL to a switch/router/FW to avoid locking yourself out. It's crucial to thoroughly consider and understand the direction in which the ACL needs to be applied.
Its a great course and also im grateful to learn from you sir i have a doubt whether labs used in this course is enough or do i need to do more labs can you guide me further ❤
I recommend purchasing the CCNA official study guide, which contains plenty of labs. I have mentioned this in the introduction, and there is also a link to the study guide in the video description. Best of luck with your exam!
Which course is this video originally a part of?
CCNA
You're the best bro
Appreciate the love 😊
Hi Naj, Really liked your videos and would like to be part of your students if you can provide me with detailed information on how I can Easly make it pleases..II
Happy to help. Can you elaborate on what you're looking to achieve?
my favorite mnemonic for OSI model is from layer 1: P-D-N-T-S-P-A Please Do Not Throw Sausage Pizza Away
Love it
CCNA jobs I want to get in Canada
LinkedIn is your friend
@@NajQazi I don't want to be jobless due to AI
recently started it, Thank GOD I found this video, its super helpful, thanks a ton sir!
You're very welcome!
Hi Naj, I am so eager to be atleast somewhere in this field could youd pls help me on this at least to archieve some certifications?
Great to see your enthusiasm! Start by identifying what interests you most. If networking is your focus, this channel is a great resource. Learn a bit every day, and don't get discouraged if progress isn't immediate-worthwhile achievements take time. Hope this helps!
@@NajQazi Thanks Naj, and of course Networking is my field of interest I will try doing my best to achieve my certifications, thanks again for the kind of motivation
On logging server which type of service (ftp, tftp, ???) is required for collecting and storing syslog.
FTP is not typically used for collecting and storing syslog messages. Instead, a dedicated syslog service is required. Common services for this purpose include: - Syslog-NG - rsyslog - Kiwi Syslog Server - Splunk - Graylog These services specifically handle the reception, storage, and management of syslog messages over the network using the syslog protocol (typically UDP port 514 or TCP port 514). Hope this helps!
How does authoritative dns server knows who was the original requestor?
The authoritative DNS server doesn't know the identity of the original requestor. Here's why: The recursive resolver is the middleman: When you type a domain name into your browser, your request typically first goes to a recursive DNS resolver (often provided by your ISP or a third-party service like Google DNS). This resolver acts as an intermediary, performing the various steps to find the IP address associated with the domain. Queries are stateless: Each query sent to an authoritative DNS server is independent and doesn't carry information about the previous queries in the chain. The authoritative server simply responds to the query with the requested DNS records (e.g., the IP address). It doesn't maintain any information about who initiated the original request. Privacy considerations: Revealing the original requestor's IP address to authoritative DNS servers could have privacy implications. This is one of the reasons why DNS resolvers act as intermediaries, shielding the original requester's identity. Exception: There's a potential exception if your resolver is configured to use DNS over HTTPS (DoH) or DNS over TLS (DoT). In these encrypted protocols, the resolver's IP address is visible to the authoritative server. However, even in this case, the authoritative server still wouldn't know the identity of the original device or user who initiated the request on your local network. Hope this helps!
Ive watched almost the full 20hrs of both of these. Thank you for your depth of knowledge
Appreciate your kind words and I'm glad you enjoyed watching my CCNA Course
Got my CCNA last August, start my new job soon and am watching this as an awesome refresher. Thanks!!
You're welcome and best of luck!
Thank you so much for this.
You are welcome!
Thanks, simple and perfect explination
Glad you liked it!
Such a geat vid. Appreciate your efforts. Liked and subssribed ❤
Much appreciated!
And every one has it's own story.
💯
nice video
Thanks
Hi Naj, Greatly appreciate for for your video!! It is much helpful!
Glad it was helpful!
Subbed... ✨😊
Thanks for subbing!
All of this just won't make sense unless you practically work on it? No?
Well, yes and no. Most students start learning about networking and CCNA concepts with zero background or experience in IT. But as they continue to learn and apply their understanding by doing hands-on labs. That's when the magic happens. The hands-on part makes the knowledge stick. For someone looking to change their career to IT or who has never worked in IT, I don't want them to get the idea that without experience, they can't understand the material. For most people, the typical path to a career in IT is to get a college degree or IT certifications. With that foundation, they can apply for jobs and have a pretty good chance of getting hired. Hope this helps!
Very high level knowledgeable video for network folks please help to continue the series deeper if you more knowledge in to automation space. Thank you
Appreciate your feedback. I've more network automation videos coming. Stay tuned 👀
Hi Naj, I am a total newbie. Just trying to gain an overview. In what order would you advise to watch your videos. Cheers Geoff
Thanks for visiting my channel. Check out my playlist section. Networking basics would be a good starting point. czcams.com/channels/iGWNUrkqOVMeMQsOWpBkCg.html
@@NajQazi Thanks. :)
An excellent video on network QoS illustration , network QoS covers many technic , the End to End QoS explains the whole picture of QoS. It helps! thank you.
Glad you enjoyed it!