Braindumps for Exam 70-58

Braindumps for Exam 70-58.

To all MCSE Candidates,

Here's the frequently tested questions for Exam 70-58.

I took the Net Ess exam today, but I didn't ace it. I did better than everybody because I hit the bulls eye. I scored the required 793 points to pass the exam. I felt I was going to do well, but I also saw stuff that was not in our book, the Networking Essentials book that Microsoft Press has published. The stuff I saw on the exam totalled about 10 percent in which two of them included below.

Three cities connected using RAS for WAN connections, 16 each 28.8 modems on 16 port hubs to all three cities (8 going in one direction and 8 in the other). No mention of multilink, nor multiplexing. Required: 1Mbps wan connection.. I said (d) does not meet after debating it, although my original answer was met the required result and all optional. I don't know if I got it right.

Here's what I found from technet:

When you connect 8 RAS modems here's what you have to take into consideration:

You must put it in an intelligent multiport serial adapter because you only have two com ports and two irqs in your computer. Use of this multiport serial adapter allows you to expand your computer's ability to accommodate 8 modems. The same applies to 16 modems.

You must consider that the maximum bandwidth/throughput of each 28.8kbps modem is as I showed earlier. (No. of modems) x (28.8kbps) x (12.5) = 360kbps x (No. of modems). Therefore, if you have 8 28.8kbps modems and you did the math, you would conclude with a maximum throughput of 2.88Mbps. There's a question on the Transcender Networking Essentials has a question on exam D about maximum throughput of four 28.8kbps modems and you should come up with an answer of 1.44Mbps. For details, see the RAS Plan on Microsoft’s Technet. This might help you explain the multilink issue. So remember, when you see this question, you answer "A" which it meets all the required and both optional results.

Three cities connected using T-1 and asynchonous 9600bps lines. LA (t1 & async)to Chi (t1 & async) to NY. Required wan connections to meet minimum of 1mbps. Optional support connections if one line goes down and maintain 1mbps. I answered meets req. + 1 optional.

You also need to know whether PPP and SLIP support error correction and compression. Only PPP supports error correction and compression. SLIP does not support compression, but CSLIP does.

Remember that connection oriented will assure delivery while connectionless oriented will not assure delivery.

There were some questions on WINS. Remember that WINS resolves NetBIOS names to IP addresses. DHCP automatically assigns IP addresses to clients.

Remember that routers don't allow broadcasts to pass through and there's questions that talk about routers and broadcasts.

Repeaters and bridges will let broadcasts pass through. Brouters will allow broadcasts to pass through if bridging is enabled or disallow broadcasts to pass through if routing is enabled and bridging is disabled.

No questions on wireless networking.

No questions on what plenum does.

There's a question on testing the CAT 5's full bandwidth capability or something close to that. What tool do you use. I said protocol analyzer and oscilloscope is not one of the answers. I don't know if I have the answer right.

Question on having Windows 95 based computers in a LAN using the NetBEUI protocol and access a Unix computer that's using NFS. I put gateway as the answer because routers, bridges, and repeaters didn't make sense to me. I'm curious what the answer tothis myself.

When in doubt and you see the following:

ATM - except for one that can increase it's bandwidth capability (which you put frame relay as the answer), answer is ATM.

Protocol Analyzer - there were four questions that have protocol analyzer, the answer is protocol analyzer.

Question on a token ring (speed is 4Mbps) connected to a 10BaseT Ethernet network. You copy a file from token ring to ethernet which takes 2 minutes and copying it back takes only 30 seconds. How can you account for the difference? I answered "Because 10BaseT is faster than Token Ring."

There's a scenario on reducing network utilization by 50% and a proposed solution is to reduce the packet size from 1516 bytes 576 bytes and increase the TCP window size from 4096 bytes to 16384 bytes. Here's a few words on reducing packet size and increasing tcp window size:

Reducing the ethernet frame size and increasing the TCP/IP window size does not reduce network utilization by 50%. If anything, it will increase network traffic, because there are now more frames, and each frame has overhead, such as headers and CRC.

There's a scenario on reducing network utilization by 50% and a proposed solution is to reduce the packet size from 1516 bytes to 576 bytes and increase the TCP window size from 4096 bytes to 16384 bytes.

Here's what someone (I will not give out the email address) said:

Here's some more stuff you should remember:

Physical Layer is where most of the troubleshooting tools operate.
Repeaters operate on the Physical layer.
Bridges operate on the Data Link Layer
NetBeui is a Transport Layer Protocol
TCP/IP and Routers operate on the Network Layer.
Data compression is performed on the Presentation Layer.
Gateways operate on the Application Layer.
Protocol Analyzer operates beyond the physical layer. Four questions appeared on my exam and I answered Protocol Analyzer because it was the only one that made sense to me at that time.
Remember that Category 5 is the only inexpensive cable that can carry data at 100Mbps. It's a twisted pair rg45 cable.
Understand what 802.3 and 802.5 are. I saw a question that has two of these connected together and you have to determine why it takes longer to transfer from one topology to another and vice versa.
Remember that Frame Relay can vary its bandwidth.
No questions involve Time Domain Reflectometer on my exam.
You can ONLY share and use resources on Windows 3.11 and Windows 95.

On all the practice tests that I've taken if there is no mention of protocol differences use bridge, if it states the protocols are different use gateway.
If you need to block broadcasts from going from one LAN to another, you need to use a router, not a bridge. Even though there's no mention of a protocol or whatsoever, you would need to resolve the issue on broadcasts being sent from one LAN to another. That alone could tie up the LAN-to-LAN link if you don't use routers.

Another one you should take note of regarding packet creation and gateways on the OSI model:

(1) The point in the OSI model where the data is split into packets is the transport layer, but the point at which the entire packet creation process starts is the Application layer. Application layer is the Microsoft answer.

(4) I thought that technically speaking, a gateway acts all the way up to the application layer in the OSI model. An example of this would be an e-mail server.

Do you remember your NDIS and ODI question? That one tricked me up with the wording and also the question where they give you a diagram of a network and you have to figure out how many terminators there should be.

I remembered that the NDIS and ODI question. The NDIS is a standard developed by Microsoft which includes NWLink - Microsoft's implemented driver for Novell Networks. The ODI standard is developed by Apple and Novell. The purpose of both NDIS and ODI is to support multiple protocols on a single network adapter card.

If an ethernet 10Base5 or 10Base2 has three trunk segments, each separated by a repeater (in the actual exam, you'll see an exhibit). There is a 50-ohm terminator on each end of each trunk segment for a total of six terminators. How many of these terminators should now be grounded? Answer is three. You'll notice that each trunk has two terminator and each trunk must be grounded at one end of each trunk to prevent ground loops. That means that if you have four trunks of 10Base5, you need to ground four terminators from each trunk.

That's all I remember for now. See the braindump if the site I just gave to you publishes it. I'm a bit disappointed with the score, but I passed the exam and that's what counts.

Transcender...Transcender...Transcender!!! Better get hold of it.

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