55 screening questions for Windows admin

1. What is Active Directory?
2. What is LDAP?
3. Can you connect Active Directory to other 3rd-party Directory Services? Name a few options.
4. Where is the AD database held? What other folders are related to AD?
5. What is the SYSVOL folder?
6. Name the AD NCs and replication issues for each NC
7. What are application partitions? When do I use them
8. How do you create a new application partition
9. How do you view replication properties for AD partitions and DCs?
10. What is the Global Catalog?
11. How do you view all the GCs in the forest?
12. Why not make all DCs in a large forest as GCs?
13. Trying to look at the Schema, how can I do that?
14. What are the Support Tools? Why do I need them?
15. What is LDP? What is REPLMON? What is ADSIEDIT? What is NETDOM? What is REPADMIN?
16. What are sites? What are they used for?
17. What’s the difference between a site link’s schedule and interval?
18. What is the KCC?
19. What is the ISTG? Who has that role by default?
20. What are the requirements for installing AD on a new server?
21. What can you do to promote a server to DC if you’re in a remote location with slow WAN link?
22. How can you forcibly remove AD from a server, and what do you do later? • Can I get user passwords from the AD database?
23. What tool would I use to try to grab security related packets from the wire?
24. Name some OU design considerations.
25. What is tombstone lifetime attribute?
26. What do you do to install a new Windows 2003 DC in a Windows 2000 AD?
27. What do you do to install a new Windows 2003 R2 DC in a Windows 2003 AD?
28. How would you find all users that have not logged on since last month?
29. What are the DS* commands?
30. What’s the difference between LDIFDE and CSVDE? Usage considerations?
31. What are the FSMO roles? Who has them by default? What happens when each one fails?
32. What FSMO placement considerations do you know of?
33. I want to look at the RID allocation table for a DC. What do I do?
34. What’s the difference between transferring a FSMO role and seizing one? Which one should you NOT seize? Why?
35. How do you configure a “stand-by operation master” for any of the roles?
36. How do you backup AD?
37. How do you restore AD?
38. How do you change the DS Restore admin password?
39. Why can’t you restore a DC that was backed up 4 months ago?
40. What are GPOs?
41. What is the order in which GPOs are applied?
42. Name a few benefits of using GPMC.
43. What are the GPC and the GPT? Where can I find them?
44. What are GPO links? What special things can I do to them?
45. What can I do to prevent inheritance from above?
46. How can I override blocking of inheritance?
47. How can you determine what GPO was and was not applied for a user? Name a few ways to do that.
48. A user claims he did not receive a GPO, yet his user and computer accounts are in the right OU, and everyone else there gets the GPO. What will you look for?
49. Name a few differences in Vista GPOs
50. Name some GPO settings in the computer and user parts.
51. What are administrative templates?
52. What’s the difference between software publishing and assigning?
53. Can I deploy non-MSI software with GPO?
54. You want to standardize the desktop environments (wallpaper, My Documents, Start menu, printers etc.) on the computers in one department. How would you do that?
55. What do you do to install a new Windows 2003 DC in a Windows 2000 AD?

Posted in: Interview Questions | Tags: windows config configuration windows admin admin sys partion ad microsoft ad active directory kcc ldp gc gcs windows 2003 windows 2008 server rid dc ds life time

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Changes in ajax 4.0 Preview 5

Declarative Attribute Changes

It is no longer necessary to include a sys:activate attribute on the body of a page containing declarative markup.

The attributes used in declarative markup have been modified slightly to minimize the number of namespaces used, and to minimize cross browser issues with some html attributes.

1. All attributes that contain an expression (e.g. {{ .. }}) or markup extension (e.g. {binding ..}) must now be prefixed with “sys:”. For example, previously you could do this:
<input type=”text” value=”{{ foo }}” />
You must now do this:
<input type=”text” sys:value=”{{ foo }}” />
Some attributes such as ‘src’ of an image already required this due to various browser issues or side effects. It was confusing when you needed sys and when you didn’t. Also, “top level bindings” naturally require sys as otherwise the expression/binding would be seen as actual content and possibly rendered to the user.

2. The ‘code’ attributes have been moved into ‘sys’.
code:if -> sys:if
code:before -> sys:codebefore
code:after -> sys:codeafter

3. The ‘class’ attributes have been moved into ‘sys’.
class:foo -> sys:class-foo

4. The ‘style’ attributes have been moved into ‘sys’.
style:font-size=”8” -> sys:style-font-size=”8”

Top Level Bindings

Support for "top level" expressions and bindings. Previously these were only supported within the context of a template marked with sys-template. For example, to bind the value of an input to a javascript object, you might do this:

<input type="text" sys:value="{binding bar,source={{foo}} }" />

This binds the value to the ‘bar’ field of a global ‘foo’ object. You can use other bindings to update the value, or directly with Sys.Observer:
Sys.Observer.setValue(foo, “bar”, “newValue”);

Binding the content of an element as text or HTML

You may bind to the content of a node using the new sys:innertext and sys:innerhtml attributes. Choose the appropriate attribute depending on whether or not you want to allow HTML in the value to be interpreted as HTML. For example, if you have a variable named ‘foo’ set to the value “<p>hello</p>”:
<div sys:innertext=”{{ foo }}”></div>
Will result in seeing <p>hello</p> in the browser.
<div sys:innerhtml=”{{ foo }}”></div>
Will result in the <p> tag being interpret as a paragraph tag.

The difference is in how the value is inserted. “sys:innertext” injects a text node with the given value. “sys:innerhtml” sets the innerHTML of the target element. Note that while “innerText” is an Internet Explorer only concept, “sys:innertext” is not an Internet Explorer only attribute. The name is semantically correct, despite it being implemented differently than IE’s native innerText field.

Template Changes

The pseudo variables accessible within template markup have been improved. Previously there was no way to get to the current context, only the parent context ($parentContext). Also, there was no simple way of getting to the current set of data being rendered.

The $parentContext pseudo variable is no longer. Now there is simply the $context variable. From there you can get to all the information available on the Sys.UI.TemplateContext class:
$context.parentContext
$context.data
$context.dataItem
$context.index
… and others. You also still have access to these for convenience:
$dataItem ß the current dataItem (e.g. $context.dataItem)
$index ß index of the current dataItem (e.g. $context.dataIndex)
$element ß The last element to either begin or close
$component ß The last component that was created
The Sys.UI.Template.instantiateIn() method has been changed to accept the data as well as the dataItem for the context that is created.
Before: template.instantiateIn(container, dataItem, dataIndex, insertBeforeNode, parentContext)
Now: template.instantiateIn(container, data, dataItem, dataIndex, insertBeforeNode, parentContext)

DataView Improvements

DataView now has the following events:
rendering
itemRendering
itemRendered
rendered

DataView Dynamic Templates and Placeholders

From each event you have the opportunity to override the parameters the DataView uses to render. The itemTemplate and itemPlaceholder can both be changed dynamically from the rendering and itemRendering events. This allows you to dynamically determine both the default template and placeholder used for all items, without having to change the corresponding DataView properties, as well as dynamically determine them for each individual item. This enables some interesting scenarios where the template used to render each item can be determined based on the data. It also means each item can be rendered into a different location. For example, you might have a Stock Ticker DataView that renders negative stocks with a negativeItemTemplate and positive ones with a positiveItemTemplate. Or you might have a product listing DataView where items of different categories are rendered into separate placeholders, possibly in very distant parts of the page.

Binding Converters and Expandos

Bindings now support the concept of named converters that are set onto the Sys.Binding.converters field. There are none out of the box, but you may now define your own and refer to them by name. For example:
{binding foo,convert=myconverter}
This would look for a converter defined like so:
Sys.Binding.converters.myconverter = function(valueToConvert, binding) {
// convert
}
In addition, you may now set expandos onto the binding object and refer to them from your converter. This allows you to semantically describe what you want in a binding in any custom way you require for any specific binding. It allows you to parameterize a converter function. For example, this example sets a ‘format’ expando on the binding object despite that not being a field or property the binding natively has:
{binding foo,convert=format,format=MM/dd}
Sys.Binding.converters.format = function(value, binding) {
// binding.format === MM/dd
}

UpdatePanel Support

Preview 4 was not compatible with UpdatePanel in ASP.NET 3.5 due to changes to the data format UpdatePanel renders, and the inline script it renders in ASP.NET 4.0. The 4.0 scripts are now designed to work with either 3.5 or 4.0 on the server. To support UpdatePanel with these scripts, you must replace the partial rendering script (MicrosoftAjaxWebForms.js) with the 4.0 version. If you do not use an update panel, you must disable partial rendering.
No UpdatePanel:

<asp:ScriptManager runat=”server” EnablePartialRendering=”false”>
<Scripts>
<asp:ScriptReference Name=”MicrosoftAjax.js” Path=”~/scripts/MicrosoftAjax.js” />
</Scripts>
</asp:ScriptManager>
With UpdatePanel:

<asp:ScriptManager runat=”server”>
<Scripts>
<asp:ScriptReference Name=”MicrosoftAjax.js” Path=”~/scripts/MicrosoftAjax.js” />
<asp:ScriptReference Name=”MicrosoftAjaxWebForms.js” Path=”~/scripts/MicrosoftAjaxWebForms.js” />
</Scripts>
</asp:ScriptManager>

Posted in: asp.net | Tags: ajax sys ajax 4.0 ajax 4.0 preview foo html codebefore codeafter parentcontext

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