Oracle 12c mcq

Dear Readers, Welcome to Oracle Objective Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of Oracle MCQs. These objective type Oracle questions are very important for campus placement test and job interviews.

As per my experience good interviewers hardly plan to ask any particular question during your Job interview and these model questions are asked in the online technical test and interview of many IT companies. On startup, all the files will be synchronized and you get both committed and uncommitted data.

The command would execute successfully. The command fails with an error because no absolute path is specified for log file and dumpfile. The tablespace-level logging attribute can be overridden by logging specifications at the table, index, materialized view, materialized view log, and partition levels.

The non-deferrable primary key constraint creates an unique index on the primary key column if it is not already indexed.

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The PROD database is running in shared server mode. You suspect the shared pool fragmentation to be the reason. One audit record is created for the whole session if user SCOTT successfully drops one or more tables in his session. One audit record is created for every session when any user successfully drops a table owned by SCOTT.

As part of the year-end tax and interest calculation process, all the rows in the table need to be accessed. You plan to use static database registration for a new listener when you create it. What could be the two reasons for this?

Choose two. The listener is not configured on the default port of and the instance is not configured to register. Which three pieces of information are to be mandatorily provided while creating a new listener using Enterprise Manager Database Control? Choose three. You have been recently hired as a database administrator. Your senior manager asks you to study the production database server and submit a report on the settings done by the previous DBA.

While observing the server settings, you find that the following parameter has been set in the parameter file of the database:. Which naming method uses the tnsnames.

The new DBA of the system stops the listener by using the following command:. The ON clause can be used to join tables on columns that have different names but compatible data types. In the output, t he customer's last name should have the heading Name and the incremented credit limit should be labeled New Credit Limit.

The column headings should have only the first letter of each word in uppercase.You may like this! Answer : [C] Explanation : Bigfile tablespaces can have only a single data file. The traditional or smallfile tablespace can have many data files the limit is OS-dependent, mostly Report Name Email.

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Automatic segment space management on the tablespace causes which of the following table attributes in that tablespace to be ignored? Answer : [B] Explanation : Redo information is not stored in a segment; it is stored in the redo logs. Undo segments are stored in the undo tablespace; temporary segments are in the temporary tablespace; and permanent segments go into all the other tablespaces. Answer : [C] Explanation : An extent is composed of two or more data blocks; a segment is composed of one or more extents; and a data file houses all these.

You performed the following statement in the database. Choose all that apply. Answer : [D, E] Explanation : When a tablespace is read-only, DML operations and operations that affect data in the table are not allowed. All Rights Reserved. Bigfile tablespaces can have only a single data file. Redo information is not stored in a segment; it is stored in the redo logs.

An extent is composed of two or more data blocks; a segment is composed of one or more extents; and a data file houses all these. When a tablespace is read-only, DML operations and operations that affect data in the table are not allowed. Contact us on : info infibee.Your email:. Here you go, The complete list of Oracle 12c New Features is here.

This multiple databases are self contained and pluggable from one database to another database. This is very useful methodology where database consolidation.

In short a single sga and background process will be shared to multiple databases, the databases can be created on fly and drop or attach and detach from one server to another server.

You can read more here. Read more herehere, here. Read more here. In a container enabled databasesonce the pdb is createda service will be automatically created on same name for example pdb. How about the datafiles system, sysauxundo, redo etcdoes they create when you create PDB?

oracle 12c mcq

As you said, if SGA and background process are shared, is there any performance impact. Ideally this architecture is used for database consolidation projects which and where small databases are shared in a single database host and not that high critical applications running. This leverages the reduction in licensing cost and also resource utilization effectively.

How does the data dictionary works to manage multiple database, for example if I used PDB1 to select a query from emp. This is something like VPD where the rows will be masked and present to the database users where they have privileges,similarly the rows will be shown only what database you have logged in. Normally you will use create user username identified by password, however this is not work anymore. How does the data visibility in container databases works?

Suppose when I logs as common user and want to verify the PDB information. How about AWR data, does it common across all databases or individual to database?

Well that is why you have individual sysaux tablespace for each database, whenever the AWR statistics collected the statistics will be pushed respective databases not the common sysaux. Since this will give you the ability to have self contained database where if you plug this database to another instance, the statistics will not lost.

oracle 12c mcq

So then, how to take a backup in Multitenant database? Shall i Take backup in rman does it take backup of all databases? A whole lot bunchplease read here directly. Comments By Email Posts. Upcoming Sessions — 7th Oct.

Oracle 12c Interview question & answers

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Oracle does not officially sponsor, approve, or endorse this site or its content and if notify any such I am happy to remove.Which statement is true concerning dropping a pluggable database PDB? The PDB must be open in read-only mode. The PDB must be in mount state. The PDB must be unplugged. The PDB data files are always removed from disk. Which statement is true?

The CDB must be open. The CDB must be in the mount stage. The CDB must be in the nomount stage. Alt existing PDBs must be closed. You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference. Which method or feature should you use? Taking a new snapshot and comparing it with a preserved snapshot. Examine the following steps: 1. Identify the correct sequence of steps. Oracle Grid Infrastructure for a stand-alone server is installed on your production host before installing the Oracle Database server.

The database and listener are configured by using Oracle Restart. What does this imply? When a database instance is started by using the SRVCTL utility and listener startup fails, the instance is still started.

One audit record is created for the whole session if JOHN successfully executes a select command, and contains the SQL text and bind variables used. It results in an error because these parameter settings are invalid.

Oracle MCQ Quiz

One 64G flash cache file will be used. Two 64G flash cache files will be used. Two 32G flash cache files will be used. By default, EM express is available for a database after database creation. You can use EM express to manage multiple databases running on the same server. You can perform basic administrative tasks for pluggable databases by using the EM express interface.

You cannot start up or shut down a database Instance by using EM express. You can create and configure pluggable databases by using EM express. During Installation, the Oracle Universal Installer OUI prompts you to enter the path of the Inventory directory and also to specify an operating system group name.

Oracle 12c Database MCQs

The installation is being performed by the root user. The operating system group that is specified should have the root user as its member.

oracle 12c mcq

The operating system group that is specified must have permission to write to the inventory directory. Skip to content Skip to blog sidebar. About The Author admin.

Related Articles Click Software Quiz.Oracle is one of the most popular database management systems in the world right now. Used by several organizations, it has become pretty important to have atleast information about its basic functions. Now you can do it with ease by just attempting the following quiz related to Oracle. Your email address will not be published. A partition. A table space. A package.

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Neither A nor. Complex snapshots. Simple snapshots. Which of the following is not an reason for the fact that most of the processing is done at the server? To implement business rules centrally. None of the above. For application sharing. To reduce network traffic.

What is the use of Library cache? Used to store shared SQL. Log of changes made to the database. All of the Mentioned. Contains User information, such as user privileges.

What is the use of extent in Oracle? Stores user data within the database. Stores rollback information used when data must be rolled back. None of the Mentioned. Minimize the amount of wasted empty storage. A data block is? All of the above. The place where all deleted records are persisted.All you need is a valid script id, the input parameters values, and your authentication variable set up as shown above. This should be used instead of inputs when multiple scripts are provided.

This can be used along with outputs. Once an execution has been successfully created it will have the following properties. Its type can be anything. Execution Status Creating an execution is a process that can take just a few seconds or a few minutes or hours depending on the workload of BigML's systems.

The execution goes through a number of states before its fully completed. Using the status field in the execution you can determine if the execution has been fully processed and ready to be used. Updating an Execution To update an execution, you need to PUT an object containing the fields that you want to update to the execution' s base URL. Once you delete an execution, it is permanently deleted.

If you try to delete an execution a second time, or an execution that does not exist, you will receive a "404 not found" response. However, if you try to delete an execution that is being used at the moment, then BigML. Note that you can also delete all resources that have been created by the execution. Listing Executions To list all the executions, you can use the execution base URL. By default, only the 20 most recent executions will be returned. You can get your list of executions directly in your browser using your own username and API key with the following links.

You can also paginate, filter, and order your executions. Configurations Last Updated: Monday, 2017-10-30 10:31 A configuration is a helper resource that provides an easy way to reuse the same arguments during the resource creation.

A configuration must have a name and optionally a category, description, and multiple tags to help you organize and retrieve your configurations. You can also list all of your configurations. To create a new configuration, you just need to POST the name you want to give to the new configuration and configurations that contains settings for individual or any resources to the configuration base URL.

Example: "This is a description of my new configuration" name optional String The name you want to give to the new configuration. Example: "my new configuration" tags optional Array of Strings A list of strings that help classify and index your configuration.

Once a configuration is successfully created, you can pass a configuration argument to any resource as part of POST requests. Elements under any are however validated at the runtime.To organize your expenses, you could use a paper budget or an Excel spreadsheet.

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You could also use an app like Mint to budget your expenses. To this day, many people still use the envelope method to manage their money and keep their spending under control. Then once that debt is paid off, apply what you were paying toward that debt to the card with the second highest interest rate and so on. This will save you the most money over time.

Take a look at your expenses from last month. Did you go out to eat too much. Do you need to rein in entertainment spending. Pay special attention to monthly regular monthly subscription services that can add up big over time. Then, apply these savings to your debt. Take a look around your house. Maybe there are some larger items taking up space such as unnecessary furniture that could be sold to pay off your debts and decrease your financial burden.

You could host a garage sale, sell items on eBay, or sell items on online yard sale Facebook groups and other sites. But, be sure to always pay your minimum payments, and be sure you can pay off your balance before the introductory interest rate offer expires otherwise, you could end up paying hefty interest charges and fees.

Are you ready for a new job. You might find that searching for a better paying job is the way to go to increase your income for the same amount of hours put in. It can be more like a game if you reward yourself when you hit each milestone along the way. Every time you pay off a debt, do something to celebrate.

You have been subscribed. Switching your cell phone carrier can be a great way to do it. You are entitled to get a free credit report from all three of Read More Top 5 tax refund myths debunked Every tax season, there's a lot of anxiety surrounding tax refunds. By using this website, you accept the terms of our Visitor Agreement and Privacy Policy, and understand your options regarding Ad Choices.

Read more: Know your rights with debt collectors Share This Article About the author: Charis Brown Charis Brown is the Senior Deals Editor for ClarkDeals. She enjoys saving money wherever possible and loves finding a great deal.

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Charis is also the author of TGIF Next Gen and lives with her husband and cat. To see more study tips, the archives are available to the left. If you would like to submit your own Study Tip to be included below, please fill out our submission form. Uncomfortable spots can make you distracted. I work for 15 minutes on and 5 minutes off so I do not lose my focus. Join a study group in which everyone stays on task. You can even wear headphones over the wireless earbuds for extra silence. Think about something you like about what your are studying.

Work out or take a snack break now or then. It's hard to study well if you are hungry or cold. Find a place where there is no tv or a phone. Find a place that is right for you. Each lot of our nuclease-free products is tested to help ensure that no traces of contaminating nonspecific endonuclease, exonuclease, and RNase activities are present.

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