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The Certification Hub
http://www.thecertificationhub.com/
Presents your - IT Certification Tips & Tricks Newsletter - Issue No. 3 [09/15/2003]
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| NEWS |
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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 |
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| WINDOWS TIPS |
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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? | |
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| 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: AThe ________ 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. |
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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. |
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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. |
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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. |
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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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