Data Types
- Which is the header that should be included first?
-
View Hint View Answer Discuss in Forum
NA
Correct Option: D
The file ‘my_global.h’ takes care of including several other header files that are likely to be generally useful, like ‘stdio.h’. It also includes Windows compatibility information.
- Which is the library file that contains various portability macros and definitions?
-
View Hint View Answer Discuss in Forum
NA
Correct Option: C
The ‘my_sys.h’ header file contains a variety of portability macros and definitions required for structures and functions. These structures and functions are used by the client library.
- What is SBR replication?
-
View Hint View Answer Discuss in Forum
NA
Correct Option: D
There are two main kinds of replication format: Statement Based Replication (SBR) replicates entire SQL statements and Row Based Replication (RBR) replicates only the changed rows.
- Replication does not enable data from one MySQL database server to be copied to one or more MySQL database servers.
-
View Hint View Answer Discuss in Forum
NA
Correct Option: A
Replication enables data from one MySQL database server (the master) to be copied to one or more MySQL database servers (the slaves). Replication is asynchronous by default.
- The operator used in PHP to access property of an object is ________________.
-
View Hint View Answer Discuss in Forum
NA
Correct Option: D
If $a represents an object, the properties it has can be accessed as $a->property-name. For instance, $a->white, $a->black, $a->blue, $a->red can be the properties of $a and accessed in this way.