PeopleSoft & Unix/Linux Commands Quiz

CTRL+B moves the cursor backward one character in readline editing mode (used by bash and other Unix shells). This follows emacs-style keyboard shortcuts where B stands for 'backwards.' CTRL+C interrupts, CTRL+Z suspends, and CTRL+P moves to the previous history command.

CTRL+P fetches the previous command from shell history, effectively 'pasting' the last line you entered. CTRL+C interrupts processes, CTRL+B moves the cursor back, and CTRL+U deletes from cursor to line start.

CTRL+W deletes the word before the cursor in Unix shells - so in 'mv file1 file2', if your cursor is after 'file2', it removes 'file2'. CTRL+C sends interrupt signal, CTRL+B moves cursor back one character, CTRL+D sends end-of-transmission or logout.

CTRL+S stops all output to the terminal (XOFF - software flow control), freezing the display. CTRL+D sends EOF signal, CTRL+B moves back one character, CTRL+W deletes a word. Use CTRL+Q to resume output.

The tilde (~) is a shell shortcut that expands to the current user's home directory. It works in commands like 'cd ~' or 'ls ~/Documents'. The other symbols (-, *, #) have different meanings in shell contexts.

!$ is a history expansion that substitutes the last argument from the previous command. For example, after 'mkdir /tmp/test', 'cd !$' expands to 'cd /tmp/test'. !! repeats the entire command line, not just the last argument.

!! is a history expansion that repeats the entire previous command line. For example, if you forgot 'sudo' before a command, typing 'sudo !!' will re-run the previous command with sudo. The other options are not valid repeat commands.

Adding PS_INSTALLATION (with 'PS_' prefix, not 'Ad' as typoed) in component properties skips the search page by making the component directly accessible. Search keys and views with single keys don't bypass the search page - PS_INSTALLATION is the special flag that controls this behavior.

The Union operator in SQL is used to combine the result sets of two or more queries into a single resultant result set. Joins combine columns from multiple tables based on related columns, whereas Union combines rows. Subqueries are nested queries used within other queries.

PeopleCode arrays can have a maximum of 15 dimensions. This is a platform-specific limit in PeopleSoft. Array dimensions beyond this would cause compilation or runtime errors.

Derived/Work records exist only in memory and are used for temporary storage or calculations. They have no underlying database table and don't need to be built. Views are built as SQL queries, SQL tables store actual data, and sub-records are reusable record definitions that inherit from built tables.

PS Query definitions are stored in the PeopleSoft Application Server, not the database server. This allows for centralized query management and security. The query metadata resides in PeopleTools tables on the application server, even though the query execution hits the database.

In PeopleSoft Data Mover, bootstrap mode requires database-level access to initialize the system. A Database Superuser has the necessary privileges to perform bootstrap operations, while other roles like PeopleSoft Superuser or Security Administrator operate at the application level and do not have direct database access for bootstrap.

PeopleCode supports Object, Number, and DateTime as native datatypes. TimeStamp is not a distinct PeopleCode datatype - DateTime is used for date-time values. The question tests knowledge of PeopleCode type system versus SQL datatypes.

State records in Application Engine programs must be either SQL Tables or Derived/Work records. SQL Views cannot be used because state records require read-write capability for storing process state, and views are typically read-only. Temporary tables are not appropriate for maintaining persistent state across executions.

EFFDT (Effective Date) is the standard PeopleSoft field for tracking temporal data. It enables effective dating by storing different versions of records with different effective dates, allowing systems to maintain historical, current, and future data simultaneously. SYSDATE and ROW_ADDED_DTTM are audit fields, while ROW_EFFDT is not a standard field.

PeopleCode event firing order matters: SaveEdit validates first, then SavePreChange before database update, SavePostChange AFTER successful database update. RowDelete fires during row deletion. The question specifically asks for the event that fires AFTER the database update completes, which is SavePostChange.

The command 'chmod g+rw cali' adds group read (r) and write (w) permissions to all files matching the pattern 'cali' in the current directory. The g+rw syntax specifically targets group permissions with + adding permissions. Option C uses octal mode incorrectly, and D targets user permissions with wrong filename pattern.