Mdt Flashcards

(43 cards)

1
Q

A mobile DBMS

A

runs on a pervasive device

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2
Q

How many users are automatically created when oracle DB is installed?

A

2 (SYS and system)

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3
Q

An oracle DB can access _ databases at a time

A

1

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4
Q

Put these in the correct order

Segment
Datablock
Extent

A

Datablock Extent Segment (DES)

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5
Q

This file is the brain of the database, and stores information on the state of the databse

A

The control file

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6
Q

This log contains information about errors and major db events

A

Oracle Alert Log

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7
Q

PMON is a part of oracle ______

A

instance

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8
Q

The library cache stores

A

SQL parsing details

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9
Q

startup open

What does this do?

A

Allows users to access the database

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10
Q

This type of buffer is a buffer that’s content has been modified

A

A dirty buffer

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11
Q

What term is used by Oracle to age data out of the database buffer cache?

A

Least recently used

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12
Q

Under what circumstance does the DBWn process write dirty buffers to the disk?

A

When a commit occurs

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13
Q

In oracle, what is the minimum number of recommended control files?

A

2

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14
Q

T/F - An extent can be made up of more than one segment

A

False

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15
Q

T/F - A tablespace can contain more than 1 datafile

A

True

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16
Q

A datablock is a logical structure, a tablespace is a physical structure

A

True

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17
Q

create tablespace test datafile “E:\test\test09.dbf” size 100M;

create tablespace test datafile ‘E:\test\test09.dbf’ size 100M;

Double parenthesis or single?

A

Single

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18
Q

The control file is located/verified during the ____ state

19
Q

What DB role gives the most permissions/privileges?

20
Q

What is the highest admin user possible in Oracle?

21
Q

I can use ______ ______ to instantiate the instance and stop the control file before it is read

A

startup nomount

22
Q

Which type of shutdown is executed when you use the simple “shutdown” command?

A

shutdown normal

23
Q

Which parameter file allows certain parameters to be changed while the DB is open?

24
Q

The ___________ process confirms the identity of a user

A

Authentication

25
Does this line create an error in the CREATE USER statement? profile limit set PASSWORD_REUSE_MAX=10
Yes
26
create user aaa identified by bbb Can aaa login and create tables, drop tables, or create indexes in their own schema?
No
27
PGA stands for
program global area
28
How can I create a PFILE? (Think SPFILE)
CREATE PFILE from SPFILE
29
T/F - There's 2 tablespaces in every database: System and Sysaux
True
30
T/F - the system tablespace can be taken offline
FALSE
31
The DB is in mount mode, how can I change it to open?
alter database open;
32
An oracle instance is a set of _________ processes and a set of _______ structures
background, memory
33
An oracle databse is a set of _________ structures
physical
34
When is the SGA (System global area) created?
When an instance is opened
35
A normal logged on user wants to see the list of objects they have access to, what contains this?
ALL_OBJECTS
36
This stores data segments that might overflow from the PGA during sorting, and temporary tables that exit during a certain session or transaction
Temporary files
37
"lnrctr status" does what
Displays the host name and port number that can be used to connect through to oracle enterprise manager (and more)
38
AAACw3AABAAAAWJAAA What is the object ID here?
AAACw3
39
T/F - "password expire;" is correct
False
40
T/F - "create profile User_Profle LIMIT" is correct
True
41
T/F - "password_life_time_90" is correct
True
42
T/F - password_lock_time_1" is correct
True
43