u/Sweet_Temporary1547

Hi everyone for context i am doing lab 17 on step 3. In Jeremy video he just uses the command sw trunk allowed vlan 10,20,30 to his g0/2 interface and he is good. However I have tried this several times and I for the life of me cannot get int g0/2 to have vlan 20 on it. You can see my cli. I understand it might be a little bit messy but hoping users here can work it out.

NOTE: I am not asking others to complete my lab I literally asking others what I am overlooking here. I have tried this several times and it never works.

https://postimg.cc/N2f1rH2y

What theory-based questions and calculations should I focus on practicing for the exam (excluding labs)? I'm thinking of topics such as IPv4 and IPv6 subnetting, EUI-64 conversion, IPv6 address shortening, route selection based on prefix length and metric, binary-to-hexadecimal conversions (and vice versa), wildcard masks, QoS, and formulas such as 8x + 2y. These are all covered in Jeremy's IT Lab videos, but I want to make sure I'm focusing my practice on concepts that are actually likely to appear on the exam rather than spending time on topics that aren't commonly tested. What else should I be practicing?

Hi Guys,

This might sound like a daft question, but is there a command I can use in the exam to quickly reset a device if I mess up a configuration?

I'm starting the labs tonight, and it's quite frustrating when I make a mistake and have to undo everything. Is there a command that will clear all configurations and let me start from scratch? For example, resetting the hostname back to its default, removing passwords, and restoring the device to its original state.

Is there also a fast way to do it on packet tracer without having to exit out of the program every time and open the labs again?

What is the best cheat sheet that people recommend writing out before taking the exam?

I'm not sure how it works in other places, but at my exam center you're given a marker and a whiteboard to write notes on during the exam. I'd like to be able to write out a cheat sheet before I officially start the exam so I don't waste valuable time during it. My goal is to have something that helps me do the subnetting calculations quickly.

What cheat sheets style do you recommend?

How prevalent is this topic in the CCNA, if at all? It has come up before in other certifications I’ve done, and although I have a minimal understanding of it, I don’t particularly want to take in-depth notes on it if I don't need too. I’m not sure if Jeremy IT mentions it — I’m using Neil Anderson’s course for my CCNA studies. It is not mentioned in the CCNA exam topics PDF.

This might be an silly question, but for the following OSPF concepts, what level of knowledge is actually expected for the CCNA exam?

OSPF Router Types

• Internal Router
• Backbone Router
• Area Border Router (ABR)
• Autonomous System Boundary Router (ASBR)
• Designated Router (DR)
• Backup Designated Router (BDR)

OSPF Area Types

• Backbone Area (Area 0)
• Standard Area
• Stub Area
• Totally Stub Area
• Not-So-Stubby Area (NSSA)
• Totally NSSA

OSPF Route Types

Internal Routes

• Intra-Area Route (O)
• Inter-Area Route (O IA)

External Routes

• External Type 1 (O E1)
• External Type 2 (O E2)

NSSA External Routes

• NSSA Type 1 (O N1)
• NSSA Type 2 (O N2)

OSPF Neighbor States

• Down
• Attempt
• Init
• 2-Way
• ExStart
• Exchange
• Loading
• Full

OSPF LSA Types

• Type 1 – Router LSA
• Type 2 – Network LSA
• Type 3 – Summary LSA
• Type 4 – ASBR Summary LSA
• Type 5 – External LSA
• Type 7 – NSSA External LSA

From what I understand, I should know all of the router types and the first two area types. Some sources suggest knowing the other area types only at a high level only.

For route types, I assume I should know intra-area, inter-area, and external routes (including both E1 and E2), but I'm not sure how much emphasis is placed on NSSA external routes (N1/N2).

For neighbor states, I believe I should know all of them and their order.

Finally, for LSA types, I've seen mixed advice. Some people say only Types 1, 2, and 5 are important for the CCNA, while others suggest knowing all of them at least at a basic level.

Can anyone clarify what is actually worth memorizing versus what only needs a high-level understanding for the CCNA?

I came across a comment on a JIT OSPF YouTube video mentioning that some terminology has changed. Specifically, it stated that terms such as "master/slave" and "whitelist/blacklist" have been replaced with newer terminology.

This was the first time I had heard about these changes, despite watching a number of videos on the topic. I'm glad the original commenter mentioned it. According to the comment, "master/slave" is now referred to as "primary/secondary," while "whitelist/blacklist" has been replaced with "allow list/deny list" or "permit list/block list."

Can anyone who has taken the CCNA exam within the past year confirm whether this is the terminology currently being used?

I'm finalising my OSPF notes and want to make sure I am using the correct terms so that I am not caught off guard by any terminology differences during the exam.

I am following another course I got on Udemy so not JIT. I had a look at some JIT notes and material however and he is talking about what is below and configuration of it.

" You can CHANGE the INPUTS used in the INTERFACE SELECTION calculation (for “flows”)

SOURCE MAC ADDRESS

DESTINATION MAC ADDRESS

SOURCE and DESTINATION MAC ADDRESS

SOURCE IP ADDRESS

DESTINATION IP ADDRESS

SOURCE and DESTINATION IP ADDRESS"

From a google search this looks like a hashing algorithm and configuration of it What should I know about this stuff? I have a good understanding of traditional load balancing and how it works but do I need to know how to configure this stuff?

I am currently on the last module of Neil Anderson’s CCNA course and taking notes. Section 38 seemed important, covering topics like SDN, JSON, REST APIs, etc. The final section, Section 39, covers AI overview, Generative AI, and Retrieval-Augmented Generation (RAG).

What notes should I realistically be taking and focusing on here?

Looking at the Cisco exam objectives, the topic that seems to match this section is:

6.4 – Explain AI (generative and predictive) and machine learning in network operations.

So, what exactly should I know from this final section of Neil’s course for the CCNA exam? I’m sure others have already gone through Neil’s course themselves, so I’m trying to figure out what is actually worth focusing on versus what is just high-level background information.

I’m almost finished a Udemy course on the CCNA. There has been a lot of information, which I expected going in, and I’ve learned a lot. The lecturer mentioned that QoS isn’t tested with configuration on the CCNA — you just need to understand the theory.

If that’s the case, what other areas aren’t tested? I want to be efficient with my time and focus on the topics that are most likely to appear. From what I’ve read, common exam topics include VLANs, configuring static routes, and possibly OSPF. NAT and IPv6 (such as static configuration) also seem likely, along with ACLs, STP, and EtherChannel.

Have I missed anything? It almost feels easier to ask what isn’t expected for configuration on the CCNA, because there’s so much information.

Hello Everyone.

I switched to mint a few weeks ago so I am still getting used to the ins and outs of Linux. Regarding the recent security concern Copy Fail exploit how do we protect ourself? I ran the command uname -r and it showed 6.17.0-23 generic. Am I safe or do I need to update anything. I am pretty good with updating my system when I see the notifications.

Does anyone have any good book recommendations one could read to educate themselves on pain. The 1HP guys are very good at explaining the mental or physiological part of pain with their posts however I would like to be able to read up on it myself as I I always find myself just giving up when I have bad days and catastrophizing. I have currently the book explain pain by David Butler, Unlearn Your Pain 3rd edition by Dr Schubiner and lastly Rehab Science by Tom Walters.