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The correct answers are A and B. C is not correct because this statement describes the Active Directory schema, not a Global Catalog. D is not correct because you can have multiple Global Catalog servers in a domain.

3. Every object in Active Directory has a(n) _______________________________ that uniquely identifies an object and contains sufficient information for a client to retrieve the object from the Directory.

session.createCriteria(User.class) .add( Restrictions.isNull("email") );

4. A(n) _________________________________ is a 128-bit number that is assigned to an object when it is created and is guaranteed to be unique.

5. What is the difference between a contiguous namespace and a disjointed namespace Give an example of each type of namespace.

You also need to be able to find users who do have an email address:

In a contiguous namespace, the name of the child object in an object hierarchy always contains the name of the parent domain. A tree is a contiguous namespace. In a disjointed namespace, the names of a parent object and of a child of the same parent object are not directly related to one another. A forest is a disjointed namespace.

Page 14-22

session.createCriteria(User.class) .add( Restrictions.isNotNull("email") );

You should suggest a single domain for the company. Because the company is relatively small and is connected by a high-speed, dedicated link there is no real need to use separate domains for the locations. Also, the company wants users to be able to log on anywhere in the company without specifying a logon location, which requires a single domain. With two domains, users would sometimes need to specify the domain to which they were logging on.

At one time, networking was an optional feature on computers, and administrators had to manually install network interface adapters and the device drivers they need to function. Today, virtually all new computers have a network adapter integrated into the motherboard, and in most cases, Windows 7 is capable of automatically detecting, configuring, and installing drivers for that adapter. This does not mean that troubleshooters can discount hardware as a possible source of networking problems, however. There are still a variety of hardware malfunctions that can inhibit network communications at many levels. Manual driver configuration is largely a thing of the past, but a missing network adapter driver or a driver conflict with another device can cause all network communication to cease. The first place to check for driver issues is the Device Manager tool. When Windows fails to locate a required driver, the device appears with a warning icon in Device Manager, as shown in Figure 12-4. The networking capabilities of a workstation can be affected by hardware problems outside the computer too, of course. An unplugged or damaged cable can cause permanent or transient interruptions, as can a malfunctioning switch or hub. Network interface adapters typically have a light emitting diode (LED) next to the cable jack called a link pulse indicator. When the adapter on a computer is properly connected to a switch or hub, the two devices exchange link pulse signals, causing the indicator to light. If the indicator on a workstation s network adapter is unlit, the cable could be broken or disconnected, or the device at the other end of the cable could be malfunctioning.

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You can also test a collection with isEmpty(), isNotEmpty(), or its actual size:

14

You should suggest that this company create two sites: one for the Memphis network and one for the Chicago network. Sites are based on the underlying network structure. Because there are two distinct high-speed LANs, it would be best to create a site for each.

session.createCriteria(Item.class) .add( Restrictions.isEmpty("bids")); session.createCriteria(Item.class) .add( Restrictions.sizeGt("bids", 3));

3. Which logical Active Directory structure would allow you to group objects in the Chicago location so that local administrators could manage those objects

At a minimum, you should place one Global Catalog server in each site so that users can access the Global Catalog even if the link between the two sites is down.

Or you can compare two properties:

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1. One of the managers has proposed a model that uses a single domain tree with two domains. Why would this type of model not meet the requirements

session.createCriteria(User.class) .add( Restrictions.eqProperty("firstname", "username") );