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Professional Data Engineer on Google Cloud Platform
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Question: 230
When a Cloud Bigtable node fails, is lost.
all data
no data
the last transaction
the time dimension
Answer: B
Question: 231
Which is not a valid reason for poor Cloud Bigtable performance?
The workload isn't appropriate for Cloud Bigtable.
The table's schema is not designed correctly.
The Cloud Bigtable cluster has too many nodes.
There are issues with the network connection.
Answer: C
Question: 232
Which is the preferred method to use to avoid hotspotting in time series data in Bigtable?
Field promotion
Randomization
Salting
Hashing
Answer: A
When you design a Google Cloud Bigtable schema it is recommended that you .
Avoid schema designs that are based on NoSQL concepts
Create schema designs that are based on a relational database design
Avoid schema designs that require atomicity across rows
Create schema designs that require atomicity across rows
Answer: C
Question: 234
Which of the following is NOT a valid use case to select HDD (hard disk drives) as the storage for Google Cloud Bigtable?
You expect to store at least 10 TB of data.
You will mostly run batch workloads with scans and writes, rather than frequently executing random reads of a small number of rows.
You need to integrate with Google BigQuery.
You will not use the data to back a user-facing or latency-sensitive application.
Answer: C
Question: 235
Cloud Bigtable is Google's Big Data database service.
Relational
mySQL
NoSQL
SQL Server
Answer: C
Question: 236
When you store data in Cloud Bigtable, what is the recommended minimum amount of stored data?
500 TB
1 GB
1 TB
500 GB
Question: 237
If you're running a performance test that depends upon Cloud Bigtable, all the choices except one below are recommended steps. Which is NOT a recommended step to follow?
Do not use a production instance.
D. Use at least 300 Gof data.
Before you test, run a heavy pre-test for several minutes.
Use at least 300 GB of data.
Answer: A
Question: 238
Cloud Bigtable is a recommended option for storing very large amounts of ?
multi-keyed data with very high latency
multi-keyed data with very low latency
single-keyed data with very low latency
single-keyed data with very high latency
Answer: C
Question: 239
Google Cloud Bigtable indexes a single value in each row. This value is called the .
primary key
unique key
row key
master key
Answer: C
Question: 240
What is the HBase Shell for Cloud Bigtable?
The HBase shell is a GUI based interface that performs administrative tasks, such as creating and deleting tables.
The HBase shell is a command-line tool that performs administrative tasks, such as creating and deleting tables.
The HBase shell is a hypervisor based shell that performs administrative tasks, such as creating and deleting new virtualized instances.
The HBase shell is a command-line tool that performs only user account management functions to grant access to Cloud Bigtable instances.
Answer: B
Question: 241
What is the recommended action to do in order to switch between SSD and HDD storage for your Google Cloud Bigtable instance?
create a third instance and sync the data from the two storage types via batch jobs
export the data from the existing instance and import the data into a new instance
run parallel instances where one is HDD and the other is SDD
the selection is final and you must resume using the same storage type
Answer: B
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