Question No. 1
What are two valid column constraints?
DEFAULT
INITIALLY IMMEDIATE
INITIALLY DEFERRED
NULL
DEFERRABLE
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Question No. 2
Which two command line support tools are used to determine the order of data for a given table?
nz_physical_table_layout
nz_zonemap
nz_pagemap
nz_sort_order
nz_get
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Question No. 3
What two files are extracted from the SQL Extension toolkit package?
libnetinza-version.tar gz
libnetsqlext-version.tar.gz
libnetxml-version.tar.gz
libnetcrypto-version.tar.gz
libnetsqlkit-version.tar.gz
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Question No. 4
What is the duration of SQB by default?
3 seconds
6 seconds
2 seconds
10 seconds
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Question No. 5
By default, when are the postgres logs rotated on an IBM Netezza Performance Server?
hourly or greater than 100 MB
daily or greater than 1 GB
monthly or greater than 10 GB
weekly or greater than 5 GB
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Question No. 6
Which log file provides a DBA with an actual SQL statement that was executed?
clientmgr.log
pg.log
sysmgr.log
dbos.log
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Question No. 7
When computing the row size for a table row, what overhead should be accounted for?
48 bytes for ROWID, CREATEXID and DELETEXID only
32 bytes for ROWID. CREATEXID, DELETEXID and the null vector
32 bytes for ROWID. CREATEXID and DELETEXID and a variable number of bytes for the null vector if there are nullable columns
24 bytes for ROWID. CREATEXID and DELETEXID plus null vector if there are nullable columns and record header depending on string columns
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Question No. 8
Which two external methods can IBM Netezza Performance Server use to authenticate database users?
LDAP
SSH
Radius
PKI-Based
Kerberos
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Question No. 9 Drag & Drop
DRAG DROP What is the order of the operations of a typical snippet in a query plan?
Options
ScanNode
SortNode
RestrictNode
ReturnNode
Drag an item to a target. Click × to remove.
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Question No. 10
What ap cli command is used to disable a node?
ap node power off
ap node set__personality fail
ap stopnode
ap node disable
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Question No. 11
Which is the most efficient data type for distribution keys?
integers
internal datatypes (ROWID etc.)
temporal types
strings
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Question No. 12
What is the purpose of the nzstate command?
restore the database to the last backup
list the state of the system
list the states of backups available
list the state of a running query
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Question No. 13
Which two scenarios can be addressed using the nz_check_disk_scan_speeds command?
check system status
get skew information distributed across disks
see disk read and write speeds
slow performing SPU or drive
get disk storage utilization details
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Question No. 14
Which statement is true when executing the GROM command on a Clustered Base Table (CBT)?
It reclaims space from deleted rows and does not re-order data
Enough space is required for GROOM to make a complete copy of the table
GROOM uses CREATE TABLE AS SELECT (CATAS) for CBT to reclaim space and re-order data.
It reclaims space from deleted rows and re-orders data.
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Question No. 15
In IBM Netezza Performance Server, what storage file system is shared across the host containers?
IBM Spectrum Scale or General Parallel File System (GPFS)
NT File System (NTFS)
Glusterfs
2 File System (ZFS)
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