SharePoint-based Web sites can be password-protected to restrict access to registered users, who
are invited to join via e-mail. In addition, the site administrator can restrict certain members' roles
by assigning different permission levels to view post and edit.

Security levels are assigned by the administrator who is adding the user. There are four levels by
default and additional levels can be composed as necessary.

1. Reader - Has read-only access to the Web site.
2. Contributor - Can add content to existing document libraries and lists.
3. Web Designer - Can create lists and document libraries and customize pages in the Web site.
4. Administrator - Has full control of the Web site.

User permissions apply to an entire Web, not to documents themselves. However, you can have
additional sub webs that can optionally have their own permissions. Each user can be given any of
four default roles. Additional roles can be defined by the administrator.

An internet site is a normal site that anyone on the internet can access (e.g., www.msn.com, www.
microsoft.com, etc.). You can set up a site for your company that can be accessed by anyone
without any user name and password.
An intranet (or internal network), though hosted on the Web, can only be accessed by people who
are members of the network. They need to have a login and password that was assigned to them
when they were added to the site by the site administrator.

A user can be assigned one of the following roles
* Reader - Has read-only access to the Web site.
* Contributor - Can add content to existing document libraries and lists.
* Web Designer - Can create lists and document libraries and customize pages in the Web site.
* Administrator - Has full control of the Web site.

The person responsible for configuring and administering the enterprise's computers, networks, and software systems.

A view may be thought of as a virtual table, that is, a table that does not really exist in its own right but is instead derived from one or more underlying base table. In other words, there is no stored file that direct represents the view instead a definition of view is stored in data dictionary.

Growth and restructuring of base tables is not reflected in views. Thus the view can insulate users from the effects of restructuring and growth in the database. Hence accounts for logical data independence.

A scope over which security policies are defined and enforced by a security administrator. A security policy domain has a collection of users (or principals), uses a well-defined authentication protocol or protocols for authenticating users (or principals), and may have groups to simplify setting of security policies.

The function performed by a party in the development and deployment phases of an application developed using J2EE technology. The roles are application component provider, application assembler, deployer, J2EE product provider, EJB container provider, EJB server provider, Web container provider, Web server provider, tool provider, and system administrator.

There are three major sets of files on disk that compose a database. All the files are binary. These are

Ø Database files

Ø Control files

Ø Redo logs

The most important of these are the database files where the actual data resides. The control files and the redo logs support the functioning of the architecture itself.

All three sets of files must be present, open, and available to Oracle for any data on the database to be useable. Without these files, you cannot access the database, and the database administrator might have to recover some or all of the database using a backup, if there is one.