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IT Certification Tips And Tricks E-Newsletter. Free IT Certification Newsletter. Get Free Practice Test Questions! CompTIA 220-221, A+, Microsoft MCSE, MCSA, Network+, Server+, iNET+, Linux+ .

 
The Certification Hub
http://www.thecertificationhub.com/
Presents your - IT Certification Tips & Tricks Newsletter - Issue No. 3 [09/15/2003]

NEWS
Outsmarting the next Worm
Finally, SoBig.F attack has expired. But if history is any guide, expect a new variant to be released any day now. Find out what the experts expect from this new worm, along with details on what you can do to keep yourself safe today.

>> You can take three steps to help protect your computer: Use an Internet firewall; update your computer; and use up-to-date antivirus software. For complete instructions, visit: http://www.microsoft.com/security/protect/default.asp

On Spyware...
Adding legitimacy to a real security threat, the folks at Symantec have finally released an update to the popular Norton AntiVirus program that checks and removes spyware and keyloggers too. Keyloggers have recently been recognized as a huge threat, after a Kinko's employee in New York added secret tracking software to public computers at 13 stores. Symantec Corp. has announced that the next version of its Norton AntiVirus product will include technology to protect against rogue applications such as keystroke loggers and spyware. Spyware and Trojans often are found in freeware or shareware programs downloaded from the Internet and are also common in the peer-to-peer clients distributed for free by file-sharing networks. Malicious software also tends to show up in the files traded on such networks. To help prevent these threats from getting onto users' machines, NAV 2004 can scan compressed files in real time, as they're downloaded. This feature is only available to Windows 2000 and XP users.   | More Info | Free Spyware Scanner | Microsoft Technical Resources - Help make systems more secure. Learn about a variety of free Microsoft tools that can help |

On Microsoft Certifications....
>> Let Microsoft certifications transform your current skills into a meaningful career. An overview of Microsoft Certifications
>>
How you can use your CompTIA certifications to satisfy some Microsoft Electives. Click here for more info.
>>
Take a free online skills assessment for Windows Server 2003.  | Click Here | Click here for a review of Exam 70-293: Securing the Network Infrastructure |

On CompTIA Certifications....
>> CompTIA has anounced [09/10/2003] that they will be releasing the 2003 versions of its A+ exams on Nov. 26. More info
>>
CompTIA Linux+ - CompTIA's Linux+ is a great entry point to Linux certification. This vendor-neutral, entry-level, one-exam certification turns two years old this fall. It is aimed at "technicians with six months experience installing, operating and maintaining Linux operating systems." This lifetime certification "validates technical competency and provides a broad awareness of Linux operating systems."

The major topics covered by the Linux+ exam, number XK0-001, are:
 
  • Planning the Implementation
  • Installation
  • Configuration
  • Administration
  • System Maintenance
  • Troubleshooting
  • Identify, Install, and Maintain System Hardware
In terms of prerequisites, there are none but CompTIA recommends you hold their A+ and Network+ certifications. Depending on your CompTIA membership status and location, you can take this 90 minute long, multiple choice exam from Pearson Vue or Thomson Prometric for between $93 USD to $225 USD. Moreover, this exam is offered in English, German, and Japanese. Note that you'll need to score at least 655 on a scale of 100 to 900 to pass this 94 question exam. For more information, read the Linux+ FAQ.

>> CompTIA A+ Exam Returning to Conventional (Linear) Format. On September 12, 2003, the CompTIA 2001 A+ Operating System Technologies (#220-222) and Core Hardware (#220-221) exams will leave the adaptive (20 to 30 question) format behind and return to a conventional linear format. After this date, no CompTIA exams will be in adaptive format. More Info

Is the Worst Over for IT Job Market?
>> Get your FREE Robert Half Technology 2003 Salary Guide for the latest on IT compensation and industry trends in the United States and Canada. www.roberthalftechnology.com/pressRoom

>> US Department of Labor Stats Predicts Fastest Growth for IT Careers - Fastest growing occupations covered in the 2002-03 Occupational Outlook Handbook, 2000-2010. More Info

 
 

WINDOWS TIPS
 
What to do if you forget your Windows ADMIN Password
With all the information administrators process daily, it's no wonder that passwords are forgotten sometimes. If you choose not to (or can't) assign yourself a new password, you have several options.

First, if you have Windows 2000 installed on a FAT or FAT32 partition, you can use a DOS or Windows 9x boot disk to boot the computer and then delete the SAM file in the \windows\system32\config folder. (This file stores all users and their passwords defined on the local computer; if you delete it, you'll delete all local users with it.) After you restart the machine, you'll be able to use Administrator username with a blank password. NOTE: Remember that you'll lose all user accounts defined on this machine.

If Windows 2000 is installed on an NTFS partition, you have two options--both of which require a bit of work. One option is to use a utility that allows you to read/write on an NTFS partition, such as NTFSDOS from Winternals. You can then use a DOS or Windows 9x bootable floppy to boot the computer and delete the SAM file.

Or you can delete the SAM file from another instance of Windows 2000 if you don't want to fool with old bootable floppies. This requires you to install a temporary instance of Windows 2000 on the same computer and delete the file from there. After you log on to your original installation, you can remove the temporary one.

There's a slightly different method you can try if you don't want to lose all your existing user accounts. By default, Windows 2000 starts a special screen saver (located in Logon.scr) when no one logs on for a certain period of time. If you rename Cmd.exe to Logon.scr, the system will open the command prompt under the system account instead of the screen saver.

Once you get the command prompt, type net user administrator mynewpassword, where mynewpassword is the password you want to assign to the administrator account. You won't have problems copying Cmd.exe to Logon.scr if you have FAT/FAT32, but with NTFS, you'll have to come up with something else (e.g., a new parallel installation of Windows 2000).

As mentioned above one solution  if you forget your admin password is to manually type different passwords. An even more efficient method is to use various password-cracking utilities. These utilities will actually do the same thing you do when you try different passwords--just at a faster rate. There are a number of good online resources where you can find such utilities, including @Stake Research Labs. http://www.atstake.com/research/redirect.html

Are you wondering why you should use a password-cracking utility? You might be thinking that you should just write a tool that would directly change the password in the SAM file. This is exactly what several utilities do. You just run them and specify the account for which you want to reset the password. (Of course, you won't be asked for the old password.)

One of the utilities that includes this functionality is ERD Commander 2000, allowing you to boot the computer from a set to floppies and then manage your computer in an environment similar to Windows 2000's own Recovery Console. ERD Commander 2000 includes the password command, which allows you to reset the password of any user account (including administrators). You can find the ERD Commander 2000, another utility called the Locksmith (which you can use to reset passwords), and more on the Winternals Software Web site. NOTE: Both of these utilities cost a fee. http://www.winternals.com/

How to fine tune the Recycle Bin
You undoubtedly know that Windows 2000 uses the Recycle Bin as a temporary storage location for deleted files and folders, giving you the opportunity to restore those folders and files. Once the items are deleted from the Recycle Bin, however, they are gone for good unless you use a third-party recovery tool to bring them back.

Windows 2000 sets aside a certain percentage of your hard disk for the Recycle Bin. When the Recycle Bin reaches its allocated capacity, Windows 2000 starts deleting files rather than placing them in the Recycle Bin (without warning). Therefore, if you keep a lot of files in the Recycle Bin, you might need to increase the amount of space allocated to it. Or, if you seldom use the Recycle Bin and your system is running low on disk space, you might want to decrease the amount of space allocated to the Recycle Bin or disable it altogether. A third possibility is to allocate different percentages on different drives.

By default, Windows 2000 allocates the same percentage of space to the Recycle Bin on each drive, but you can configure them separately, if needed.


1. Right-click the Recycle Bin icon on the desktop and choose Properties.
2. Select Configure Drives Independently and then use the slider to set the percentage for the selected drive.
3. Click the next drive's tab and set its percentage.
4. Repeat the process for all drives in the system and then click OK.

If you prefer to disable the Recycle Bin and delete files immediately, open the Recycle Bin Properties and select the Do Not Move Files To The Recycle Bin option. To bypass the Recycle Bin for selected files without disabling it, hold down [Shift] when you press [Delete] to delete an item

Tips on how to recover from a crash in Windows 2000
Even though the Windows NT Rdisk utility isn't included in the Windows 2000 OS, there is a workaround that you can use to keep Rdisk in play in case of a system crash. Here's that tip, plus info on the Windows 2000 Backup utility.

Use Rdisk under Windows 2000
Windows 2000 did away with the Windows NT Rdisk utility, which on Windows NT systems creates a backup on an ERD of your system's critical files: Autoexec.nt, Config.nt, and registry files. Rdisk can also create a backup copy of the registry in the %systemroot%\Repair folder, which you can use to restore the system in the event of a corrupted registry or other major problem. Microsoft replaced Rdisk's functionality with features in Windows 2000's Backup utility. For example, you use the Emergency Repair Disk wizard from Backup's Welcome page to make a backup copy of the registry and create the ERD.

You can still continue to use Rdisk in Windows 2000 if you wish to back up the registry and create a repair disk. However, you need to copy the Rdisk.exe executable to your Windows 2000 system(s) from an NT system because the file doesn't exist under Windows 2000.

Rdisk compresses the registry files to make them fit on a diskette, although in many cases the registry is simply too large to fit on a diskette—one of Rdisk's failings. You can use the Windows 2000 Repair process to restore a system using an ERD created with Rdisk, although you'll need to manually expand the registry files from the diskette if you need to restore the registry. To save time, create a batch file to expand the files.

Use alternating backups for document protection
Windows 2000's Backup utility offers one really useful feature for helping you protect and back up your files on your personal workstation: the ability to back up to a file. You can back up to a file on your local hard drive, a floppy drive, or network share. This means you don't have to have a tape drive installed in your system to make periodic backups. For example, you should consider backing up your My Documents folder and any other folders that contain documents you can't afford to lose.

When you back up to a file, you have the option of appending to or replacing the backup set, just as you do with tape media. If you choose to replace the backup set, Backup overwrites the previous backup data in the file, if any. If you choose the append option, Backup adds to the set instead. The result over a period of time could be a really large backup file containing many multiples of the data.

You typically don't want to use the replace option with a single backup set, because a problem with the backup process could leave you with no valid backup. Rather than use Append and end up with a huge backup file, create multiple Backup jobs that each use a different file and use replace for the backup operation. For example, create a different backup job for every day of the week, with each backing up to its own backup file using the replace option.
References: | How do I recover a lost administrator password? |


FREE TEST QUESTIONS
Exam:N10-002 - CompTIA Network+
What does a host do first to request a dynamic IP address?

A. Sends out a broadcast message looking for a DHCP server
B. Attempts to use a previously assigned IP address
C. Sends out a broadcast to find out which IP addresses are not currently use
D. Locates a WINS server on the network to negotiate an IP address lease
E. Looks for the default gateway address

Answer: A

The ________ is responsible for file format translations, syntax translations, and terminal characteristics.

A. Application Layer
B. Presentation layer
C. Session Layer
D. Transport Layer

Answer: B
References: | The OSI Reference Model | Get Free Guide To Microsoft's Implementation of The OSI Reference Model - Good For MCP/MCSE/MCSA Exams |

Exam: [220-222] - CompTIA A+ OS Technologies
You have a video problem. You see the following error on your Computer monitor: "Unsupported mode". What should you do to solve this problem?

A. Replace the monitor. This is the sign that the monitor is bad.
B. Replace the video card. This is a sign that the video card has gone bad.
C. Boot the computer to safe mode, change the screen resolution to one that the monitor will support.
D. Boot the computer to safe mode, change the refresh rate to one that the monitor will support.

Answer: D - Newer monitors will mute the video signal and display the error "Unsupported mode" or "Invalid Sync" if the refresh rate is not set correctly. This is to protect the monitor from possible damage that can be caused by an incorrectly set refresh rate. A bad monitor or video card will generally not display either of these error messages. An unsupported screen resolution will not display either of these error messages.
Exam: [220-221] - CompTIA Core Hardware
Which IRQ is cascaded as IRQ2 and must not be assigned when IRQ2 is in use?

A. 5
B. 7
C. 9
D. 10
E. 15

Answer: C

Which IRQ is assigned to the first serial port?

A. 2
B. 3
C. 4
D. 5
E. 7

Answer: C

What PC resource is used by a hardware device to let the Central Processing Unit know it needs servicing?

A. IRQ
B. DMA
C. I/O Address
D. Base Memory
E. Operating System

Answer: A

 
Exam:70-210 - Implementing & Administering Windows 2000 Professional
Which of the following steps would best configure your paging file for optimum performance, in a Windows 2000 Professional computer that has a a 2GB hard disk and 128MB of RAM  and is running memory intensive programs? (Choose the best answer.)

A. Set the pagefile's initial size to 64MB and the maximum size to 192MB.
B. Set the pagefile's initial size to 128MB and the maximum size to 128MB.
C. Set the pagefile's initial size to 192MB and the maximum size to 128MB.
D. Set the pagefile's initial size to 256MB and the maximum size to 128MB.
E. Set the pagefile's initial size to 256MB and the maximum size to 256MB.
F. Set the pagefile's initial size to 2048MB and the maximum size to 2048MB

Answer: E —Set the initial size to 256MB and the maximum size to 256MB. According to Microsoft, you should generally set the pagefile size to 1.5 times the amount of RAM on your system. However, if you run memory-intensive applications, you should set your pagefile size higher than Microsoft's recommendations. Setting the initial pagefile size the same as the maximum pagefile size can reduce fragmentation of the pagefile and improve performance. However, note that you can't set the initial size to a number that's greater than the maximum size. While you're browsing the System Properties dialog box, take a look at the Advanced tab. This tab is the gateway to three sets of configurable variables: Performance, Environment, and Startup and Recovery. Under Performance, click Change, then configure the pagefile from the Virtual Memory dialog box, which Screen 1 shows. Ideally, the pagefile needs to reside on a disk separate from the disk that holds the system files. We also suggest that you set the Initial size and Maximum size fields to the same value. Be sure to choose a value high enough to give you a sufficiently sized swap file. You might want to go with the recommended default value, then use Performance Monitor to watch the pagefile and ensure that the system doesn't approach its pagefile size limit. Setting Initial size and Maximum size to the same value prevents the pagefile from growing while users access the system and from slowing users down as the system searches for and allocates space. On the Advanced tab, you might also open Startup and Recovery and change the time frame for which the system displays the OS choices. The default 30 seconds is glacial-if you can't decide which OS you want in 10 seconds, you've been staring at computer screens for too long.
Exam:70-215 - Implementing & Administering Windows 2000 Server
You want to Remote Installation Services (RIS) to remotely deploy Windows 2000 Professional to 500 desktops in your company. Which of the following services do NOT need to be available somewhere on the network in order for RIS to function properly? Choose all that apply.

A. Active Directory Service
B. Certificate Services
C. DHCP Service
D. DNS Service
E. Terminal Services (Remote Administration Mode)
F. WINS Service

Answer: B, E & F RIS is available only on computers running one of the Windows 2000 Server family of products. The RIS server can be a domain controller or a member server. The following network services don't have to be installed on the same computer as RIS, but they must be available somewhere on the network.
DNS Service - RIS relies on the DNS server for locating both the directory service and client computer accounts. DHCP Service - Client computers that can perform a network boot receive an IP address from the DHCP server.

You are the administrator for a company that has six offices scattered throughout The United States. Each office has its own WINS server. Your head office is located in San Francisco and your branch offices are located in Indianapolis, New York City, Philadelphia, Detroit and Miami. You would like to configure your network so that any updates that occur on one WINS server are available to any of the others within an hour. For example, if a machine is started in Miami at 12 PM San Francisco time, you would like that record available on the WINS server in the Detroit branch office at 1 PM San Francisco time. The WAN is set up so that all branch offices have an T1 line that runs from each branch office directly to the San Francisco office. There are no direct lines between the branch offices (e.g. all traffic between Philadelphia and Indianapolis first travels down the T1 link from Philadelphia to San Francisco, then is routed through to Indianapolis). Because the T1 links are reasonably saturated with traffic, you wish to minimize the amount of data that WINS will need to transfer across the T1 lines. Which of the following represents the simplest way to achieve to achieve these objectives?

A.   Set each WINS server in each branch office, and the one in head office as the push/pull partner of each other and set the replication interval at 45 minutes.
B.   Set the server in San Francisco to be the push/pull partner of the Server in Indianapolis. Set the server in Indianapolis to be the push/pull partner of the server in Detroit. Set the server in Detroit to be the push/pull partner of the server in New York City. Set the server in New York City to be the push/pull partner of the server in Philadelphia. Set the server in Philadelphia to be the push/ pull partner of the server in Miami. Set the server in Miami to be the push/pull partner of the server in San Francisco. Set the replication interval to 12.5 minutes for all of these relationships.
C.   Set all of the servers in the branch offices to be a push/pull partner with the server in head office. Set the replication interval at 45 minutes.
D.   Set all of the servers in the branch offices to be a push/pull partner with the server in head office. Set the replication interval at 20 minutes

Answer: D - Every 20 minutes the server in San Francisco is notified of the changes that have occurred in the WINS databases of the branch offices as well of any changes that have occurred in the San Francisco office. At the same time the servers in the branch offices are updated with the San Francisco office's current database. Let's say a machine is started in Miami. It registers itself with the Miami WINS Server, and a maximum of 20 minutes later, the San Francisco server is informed of this change and adds it to its database. At some time in the next 20 minutes the Detroit server is going to contact the San Francisco server, pushing its updates to it as well as pulling down the updates from San Francisco's database. As the Miami update now resides in the San Francisco database, the Detroit WINS server will now be aware of the change in Miami. Answer C could not be correct because it could be 45 minutes before the San Francisco server is aware of a change made in the Miami database and possibly another 45 minutes before Detroit becomes aware of this change. This does not meet the objective of having all changes propagated to all servers within an hour. In answer B, an update will effectively travel both ways around the loop (so an update in Miami goes to both San Francisco and Philadelphia within 12.5 minutes). This does not minimize network traffic (all traffic goes through San Francisco anyway) and therefore does not meet the latter objective. Answer A would cause the most network traffic so it also does not meet the latter objective.


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