• Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
    Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.

CCENT/CCNA [H] study group

Same reason it uses auto duplex and other automatically setup features -- so it works when you turn it on, and then you configure it to your needs later. An example is when you enable RIP.. it's enabled at version 1. No one uses version 1.
 
Ok i get it now. But now how come auto -has to summarize to a classful network? Why can't it do what manual summary would best do for the routing protocols that support it?
 
AMD_Gamer said:
Ok i get it now. But now how come auto -has to summarize to a classful network? Why can't it do what manual summary would best do for the routing protocols that support it?
Click to expand...
Because not all protocols are classless, personally I think its because when you start learning networking its what you learn first so the first protocol you encounter is RIP, which is where you learn about summarization (which is classful), but when you get into more advanced networking you hit stuff like EIGRP, BGP, etc which are classless protocols. So layman's way of learning, step by step.
 
The testing center I went to was nice. It was clean and quiet. The test itself is tough but not in the fact that you have to remember just facts but you really have to understand multiple things going on in the network to answer the question right. I had 18 minutes left but I did feel presser to move on if I was unsure of the answer.
I have never work so hard in my life on one thing. It is a huge relief to have it done. Next I will be taking on an entry level EMC exam (fall 2011). After that I will take on the CCNA wireless (spring 2012)
Things I used to study:
• Odom books
• CBT
• Trainsignel
• 1 week class on ICND2 (waste of time)
• Packet tracer
• Some lab work
• Setting up 12 new 3750x (for work)
 
TSaL said:
The testing center I went to was nice. It was clean and quiet. The test itself is tough but not in the fact that you have to remember just facts but you really have to understand multiple things going on in the network to answer the question right. I had 18 minutes left but I did feel presser to move on if I was unsure of the answer.
I have never work so hard in my life on one thing. It is a huge relief to have it done. Next I will be taking on an entry level EMC exam (fall 2011). After that I will take on the CCNA wireless (spring 2012)
Things I used to study:
• Odom books
• CBT
• Trainsignel
• 1 week class on ICND2 (waste of time)
• Packet tracer
• Some lab work
• Setting up 12 new 3750x (for work)
Click to expand...



I see you over at techexams ;)

So what was your hardest topic for the CCNA?
 
AMD_Gamer said:
I see you over at techexams ;)

So what was your hardest topic for the CCNA?
Click to expand...

Techexam is a great forum.


I would say:
AD and FD in EIGRP with unequal load balancing
ACL sequencing (knowing what ACL statement trumphs another statement)
 
AMD_Gamer said:
I see you over at techexams ;)

So what was your hardest topic for the CCNA?
Click to expand...

I think ANYONE that is studying for any IT certification should be on Techexams. It's a plethora of information from so many different people. Great advice, lots of knowledge. Not as fun as HardForum, but a lot of information for certs. :)
 
Ur_Mom said:
I think ANYONE that is studying for any IT certification should be on Techexams. It's a plethora of information from so many different people. Great advice, lots of knowledge. Not as fun as HardForum, but a lot of information for certs. :)
Click to expand...

I see you over there posting your sexy rack!;)
 
Vito_Corleone said:
This is the key word. And, honestly, I don't think even CCNA OSPF is easy for most people. Want some quiz questions?
Click to expand...

Sure give me some questions.

How OSPF works and the theory is really simple and there are only a handful of commands to know for the CCNA.
 
The commands aren't too bad, it's knowing the internals.

What's the difference between OSPF and EIGRP?
 
There's a lot more to it. Also, EIGRP isn't a hybrid. Cisco played that shit for awhile, but it's crap. They're back to calling it "Advanced" Distance Vector. Here are some more:

What is the difference between link-state and distance vector routing protocols?
What are LSAs?
What is Cost and how does it work?
What does the network statement accomplish?
How many paths will OSPF load-balance across by default?
How do you make OSPF load-balance across unequal-cost paths?
What authentication does OSPF use by default, and what authentication options does OSPF allow?
What must neighbors agree on in order to form an OSPF adjacency?
What state must neighbors be in to exchange routing information?
What is the DR and how does it work?

If you can answer all, or most, of those (without looking them up), you understand OSPF very well at the CCNA level.
 
Vito_Corleone said:
There's a lot more to it. Also, EIGRP isn't a hybrid. Cisco played that shit for awhile, but it's crap. They're back to calling it "Advanced" Distance Vector. Here are some more:

What are LSAs?
What is Cost and how does it work?
What does the network statement accomplish?
How many paths will OSPF load-balance across by default?
How do you make OSPF load-balance across unequal-cost paths?
What authentication does OSPF use by default, and what authentication options does OSPF allow?
What must neighbors agree on in order to form an OSPF adjacency?
What state must neighbors be in to exchange routing information?
What is the DR and how does it work?

If you can answer all, or most, of those (without looking them up), you understand OSPF very well at the CCNA level.
Click to expand...

Ok going to answer these honestly without looking. I only read the Cisco press book and my normal study routine before hitting practice tests is to read the Cisco press book and Sybex.

What is the difference between link-state and distance vector routing protocols?

Link state use things like bandwidth on each link to determine the best path route to add to the routing table, distance vector just use hop counts like the number of routers it has to go through.

Link state also has knowledge of the entire topology and builds its routing table from that while distance vector only knows about its neighbors and does routing by rumor.

What are LSAs?
Link state advertisements- They contain information about all the connected links on the router and the state and cost of each interface. These are sent to the neighbor router and they neighbor does two things, forwards the LSA on to it's neighbors and adds the LSA information to its OSPF database to build a new topology. If a DR is used the LSA's are only sent to the DR.

What is Cost and how does it work?

Cost assiocated with a network link, OSPF adds the cost of each link to the destination subnet to determine the best path to add to the routing table.

What does the network statement accomplish?

Chooses which networks/interfaces to run OSPF on

How many paths will OSPF load-balance across by default?

I think 4, it may have been 6 but i don't remember, there is a command to change this

How do you make OSPF load-balance across unequal-cost paths?

There is a command for this, i forget the command

What authentication does OSPF use by default, and what authentication options does OSPF allow?

It uses NULL by default, other options are clear text and MD5

What must neighbors agree on in order to form an OSPF adjacency?

Area number
Hello Time
Dead interval time
Authentication method

What state must neighbors be in to exchange routing information

What is the DR and how does it work?

DR is used when multiple routers are on the same subnet. The routers on the subnet elect a DR and BDR, all LSA's are exchanged between the DR and the other routers to reduce traffic generated by the LSA's




Those questions hit pretty much everything covered in the CCNA for OSPF. Only other thing I can think of is the use of different areas.
 
Last edited:
Looks like you're going to edit the post with each answer? I'll comment here with edits as well. Also, I added another question to the top shortly after posting.

For LSAs, I don't mean what does the acronym stand for, I mean what are they and what do they do?


What is the difference between link-state and distance vector routing protocols?
Link state use things like bandwidth on each link to determine the best path route to add to the routing table, distance vector just use hop counts like the number of routers it has to go through.
This is somewhat inaccurate. RIP uses hop count, but EIGRP uses more advanced techniques. More information is shared between neighbors.

Link state also has knowledge of the entire topology and builds its routing table from that while distance vector only knows about its neighbors and does routing by rumor.

What are LSAs?
Link state advertisements- They contain information about all the connected links on the router and the state and cost of each interface. These are sent to the neighbor router and they neighbor does two things, forwards the LSA on to it's neighbors and adds the LSA ifnormation to its OSPD database to build a new topology. If a DR is used the LSA's are only sent to the DR.
Very good. See below about DR and BDR

What is Cost and how does it work?
Cost assiocated with a network link, OSPF adds the cost of each link to the destination subnet to determine the best path to add to the routing table.
Do you know how cost is calculated?

What does the network statement accomplish?
Chooses which networks/interfaces to run OSPF on

How many paths will OSPF load-balance across by default?
I think 4, it may have been 6 but i don't remember, there is a command to change this
You're right, it's 4. The command you're looking for is maximum-paths

How do you make OSPF load-balance across unequal-cost paths?
There is a command for this, i forget the command
This was a trick question. The command you're thinking of is variance, but it's an EIGRP command. OSPF doesn't load-balance across unequal-cost links.

What authentication does OSPF use by default, and what authentication options does OSPF allow?
It uses NULL by default, other options are clear text and MD5

What must neighbors agree on in order to form an OSPF adjacency?
Area number
Hello Time
Dead interval time
Authentication method

What state must neighbors be in to exchange routing information
Doesn't look like you hit this one. The answer if "Full". This is important. Do some labbing to verify, also note what the non-DR/BDR routers see for adjacencies other than the DR/BDR.

What is the DR and how does it work?
DR is used when multiple routers are on the same subnet. The routers on the subnet elect a DR and BDR, all LSA's are exchanged between the DR and the other routers to reduce traffic generated by the LSA's
This is mostly correct. Routers exchange information with the DR and the BDR. This is for redundancy.
Click to expand...

You're doing pretty well. If you're not looking these up, I'm impressed. I'll put some comments in red.
 
Last edited:
What state must neighbors be in to exchange routing information

I thought it was full but got confused because you have the two-way state.
 
I think i did pretty good. That was with one read through and some simple lab work with packet tracer. As i said earlier, before i start to hit practice questions I will be reading the Sybex book also.
 
Man, that requires a lot of work, lol. I had to go through the ICND2 book on OSPF to see what was fair game. I'll work on something later.

Edit: Shit, I deleted the PDF when I was done. I'm too lazy to re-download it.
 
After the CCNA? That was awhile ago. I haven't stopped studying/getting certs since though. Studying for the IE is probably what solidified all the route/switch stuff for me. That and working with it constantly.
 
Ok i just finished the EIGRP chapter and once again very simple stuff. Only confusing things are the variance and feasible successors. I will have to study that stuff hard.
 
AMD_Gamer said:
Ok i just finished the EIGRP chapter and once again very simple stuff. Only confusing things are the variance and feasible successors. I will have to study that stuff hard.
Click to expand...
I might have some exercises and stuff about finding successors and paths through an EIGRP network at home. I'll check tonight.
 
AMD_Gamer said:
After your CCNA do you still remember most of the stuff?
Click to expand...

Go right into the NP and I guarantee you'll remember the stuff. You'll learn things way more in depth.

To use OSPF for example, the NA would teach that LSAs contain topology information that makes up an area's LSDB. The NP will delve into each LSA type (11 in all), their functions, and which router (ABR/ASBR/DR/DROther) will create each LSA.

Trust me, you'll know the CCNA definition of an LSA if you fully know the different types of LSAs at an NP level.
 
I have the Cisco Press ICND1 and ICND2 books on the way, is Todd Lammle's book still the one to get?
 
You must log in or register to reply here.
Back
Top