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NEW QUESTION: 1
The Anomaly node is on which palette or menu group?
A. Field Ops
B. Record Ops
C. Modeling
D. Output
Answer: C
NEW QUESTION: 2
You have an on-premises data warehouse that includes the following fact tables. Both tables have the following columns: DataKey, ProductKey, RegionKey. There are 120 unique product keys and 65 unique region keys.
Queries that use the data warehouse take a long time to complete.
You plan to migrate the solution to use Azure SQL Data Warehouse. You need to ensure that the Azure-based solution optimizes query performance and minimizes processing skew.
What should you recommend? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation
Box 1: Hash-distributed
Box 2: ProductKey
ProductKey is used extensively in joins.
Hash-distributed tables improve query performance on large fact tables.
Box 3: Round-robin
Box 4: RegionKey
Round-robin tables are useful for improving loading speed.
Consider using the round-robin distribution for your table in the following scenarios:
* When getting started as a simple starting point since it is the default
* If there is no obvious joining key
* If there is not good candidate column for hash distributing the table
* If the table does not share a common join key with other tables
* If the join is less significant than other joins in the query
* When the table is a temporary staging table
Note: A distributed table appears as a single table, but the rows are actually stored across 60 distributions. The rows are distributed with a hash or round-robin algorithm.
References:
https://docs.microsoft.com/en-us/azure/sql-data-warehouse/sql-data-warehouse-tables-distribute
NEW QUESTION: 3
You work as a Software Developer for UcTech Inc. You build an online book shop, so that users can purchase books using their credit cards. You want to ensure that only the administrator can access the credit card information sent by users. Which security mechanism will you use to accomplish the task?
A. Confidentiality
B. Authorization
C. Data integrity
D. Authentication
Answer: A
NEW QUESTION: 4
A routing table contains multiple BGP routes to the same destination prefix. The route preference is the same for each route. Referring to the exhibit, which route would be selected?
Route MED Origin Code
Local Preference
A
I 50 B 0 ? 150 C 20 E 100 D 10 I 50
A. route B
B. route C
C. route A
D. route D
Answer: A