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NEW QUESTION: 1
Which statement is true regarding the location of deduplication statistics information?
A. QUERY STGPOOLshows the total number of deduplicated files.
B. QUERY ACTLOGshows the total data reduction ratio.
C. QUERY STGPOOLshows the total data reduction ratio.
D. QUERY ACTLOGshows the amount of space saved by server side deduplication.
Answer: C
Explanation:
QUERY STGPOOL (Query storage pools)
Use this command to display information about one or more storage pools.
The " QUERY STGPOOL" server command may not show the correct inline dedupand compression statistics fordirectory-container storage pools, erroneously reporting all these values as zero (percentage) like in the following example:
Storage Pool Name: DIRCONTPOOL
Storage Pool Type: Primary
Storage Type: DIRECTORY
Deduplication Savings: 0 (0%)
Compression Savings: 0 (0%)
Total Space Saved: 0 (0%)

NEW QUESTION: 2
You need to correct the model fit issue.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

Answer:
Explanation:

Explanation

Step 1: Augment the data
Scenario: Columns in each dataset contain missing and null values. The datasets also contain many outliers.
Step 2: Add the Bayesian Linear Regression module.
Scenario: You produce a regression model to predict property prices by using the Linear Regression and Bayesian Linear Regression modules.
Step 3: Configure the regularization weight.
Regularization typically is used to avoid overfitting. For example, in L2 regularization weight, type the value to use as the weight for L2 regularization. We recommend that you use a non-zero value to avoid overfitting.
Scenario:
Model fit: The model shows signs of overfitting. You need to produce a more refined regression model that reduces the overfitting.

NEW QUESTION: 3
On your Oracle Database, you issue the following commands to create indexes:
SQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customer_id, sales_rep_id) INVISIBLE;
SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customer_id, sales_rep_id);
Which two statements are true?
A. Both the indexes are updated when a row is inserted, updated, or deleted in the ORDERS table.
B. Both the indexes are created and used by the optimizer for queries on the ORDERS table.
C. Both the indexes are created: however, only ORD_CUSTOMERS_IX2 is used by the optimizer for queries on the ORDERS table.
D. The ORD_CUSTOMER_IX1 index is not used by the optimizer even when the OPTIMIZER_USE_INVISIBLE_INDEXES parameters is set to true.
E. Both the indexes are created: however, only ORD_CUSTOMERS_IX1 is used by the optimizer for queries on the ORDERS table.
F. Only the ORD_CUSTOMER_IX1 index created.
Answer: A,C
Explanation:
Not A: Both indexes are created fine.
B: The invisible index ORD_CUSTOMERS_IX1 and the bitmap index are both updated by DML operations on the Orders table.
F: Since ORD_CUSTOMERS_IX1 is invisible only ORD_CUSTOMERS_IX2 is used by the query optimizer.
Not C,Not D,Not E:
* ord_customer_ix1 is an invisible index and is therefore not used by the optimizer.
* VISIBLE | INVISIBLE Use this clause to specify whether the index is visible or invisible to the optimizer. An invisible index is maintained by DML operations, but it is not be used by the optimizer during queries unless you explicitly set the parameter OPTIMIZER_USE_INVISIBLE_INDEXES to TRUE at the session or system level.
Note: Specify BITMAP to indicate that index is to be created with a bitmap for each distinct key, rather than indexing each row separately. Bitmap indexes store the rowids associated with a key value as a bitmap. Each bit in the bitmap corresponds to a possible rowid. If the bit is set, then it means that the row with the corresponding rowid contains the key value. The internal representation of bitmaps is best suited for applications with low levels of concurrent transactions, such as data warehousing.

NEW QUESTION: 4
You have been asked to create a sequence of user forms for a travel reservation process.
The forms contain fields that require calculation. For which reason do you use a declare expression to calculate values?
A. To perform the calculation in a specific case stage
B. To perform the calculation wherever a field is updated
C. To perform the calculation when the user clicks a button
D. To perform the calculation when a form is submitted
Answer: B
Explanation:
Referencehttp://pegasystems2.http.internapcdn.net/pegasystems2/lrd_and_reference_doc s/SSA_716_StudentGuide_20150211.pdf