Subject: 70-058

Date sent: Thu, 30 Jul 1998 16:54:52 -0400

Passed the Network Essentials test about an hour ago with 896. So take everything I write here with a grain of salt. Wrote it in 40 min. This was the last of the core ones for me, and I would rate it the easiest.

Love this site, blah blah blah...

Used this site and Transcender (invaluable). Take the Transceders over and over and over... Also Microsoft Press books if you got 'em.

I only got 1 question dealing with the OSI layers (I've read that you should expect 8 or so). It was a simple one:

1.Q: What network device operates on the network layer?

A: Router

I recall a lot of scenario/exhibit questions:

2. <-----------T1----------> <----------T1----------->

A B C

<--9600 baud dedicated--> <--9600 baud dedicated-->

Required: Allow minimum 1Mbps connectivity from any site to any site.

Optional: Allow connectivity if any one link goes down

Allow minimum 1Mbps connectivity if any one link goes down

Solution: Connect A to B with a T1 and a separate 9600 baud dedicated line.

Also connect B to C with a T1 and a separate 9600 baud dedicated line.

Answer: Solution satisfies required and 1 optional.

3. <---- 8 x 28.8 send ---> <---- 8 x 28.8 send --->

+-> A B C <-|

| <-- 8 x 28.8 receive --> <-- 8 x 28.8 receive --> |

| |

+----------------------- 8 x 28.8 send ----------------------+

| |

+--------------------- 8 x 28.8 receive ---------------------+

Required: Allow minimum 1Mbps connectivity from any site to any site.

Optional: Allow connectivity if any one link goes down

Allow minimum 1Mbps connectivity if any one link goes down

Solution: Connect A to B with a 16 28.8 modems (8 for send and 8 for receive). Connect A to C with a 16 28.8 modems (8 for send and 8 for receive). Connect B to C with a 16 28.8 modems (8 for send and 8 for receive).

Answer: Solution does not satisfy the required result. (Even 16 28.8 modems all transmitting is still only 460Kbps. Strangely, this was one of the only questions I got that didn't allow the calculator)

I can't remember any of the other scenarios, but there were a few involving cabling, one or two involving WINS.

Some other questions:

4.

Q: What is needed to allow a client to access an IBM mainframe?

A: DLC

5.

Q: What is needed to allow a MS-DOS based client running NetWare DOS Requester to access a network resource?

A: NWLink (Someone else posted a dump and answered NetBEUI. I think anything that says Novell should require NWLink or IPX/SPX)

6.

Q: What protocol should you use on a 7 client (Win95) stand-alone workgroup?

A: IPX/SPX Compatible (NetBEUI was NOT an option)

7.

Q: Mary can't access the network but everyone else on her cable segment can.

What's Mary's problem?

A: Loose cable connection (Invalid frame type was an option but the question did not mention Novell).

Had one confusing question about a client/server network. I said it was one where a server provides processing resources for a client, but another option was where any computer can provide resources to any other computer (AKA a peer-to-peer). A peer-to-peer network is a special type of client/server network. Hmmm...

Got 2 questions (worded differently) about NDIS/ODI. Both allow network adapters to use multiple protocols.

Got a couple of question about datalink protocols. Both answers were PPP (allow compression, also allow more than just TCP/IP).

Got a question about IRQs. IRQ 3 conflicted with COM 2.

As you can see, questions I got were not that difficult. I wish I could remember more.