Mdt Flashcards

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

A

Mount

19
Q

What DB role gives the most permissions/privileges?

A

SYSDBA

20
Q

What is the highest admin user possible in Oracle?

A

SYS

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?

A

SPFILE

24
Q

The ___________ process confirms the identity of a user

A

Authentication

25
Q

Does this line create an error in the CREATE USER statement?

profile limit set PASSWORD_REUSE_MAX=10

A

Yes

26
Q

create user aaa identified by bbb

Can aaa login and create tables, drop tables, or create indexes in their own schema?

A

No

27
Q

PGA stands for

A

program global area

28
Q

How can I create a PFILE? (Think SPFILE)

A

CREATE PFILE from SPFILE

29
Q

T/F - There’s 2 tablespaces in every database: System and Sysaux

A

True

30
Q

T/F - the system tablespace can be taken offline

A

FALSE

31
Q

The DB is in mount mode, how can I change it to open?

A

alter database open;

32
Q

An oracle instance is a set of _________ processes and a set of _______ structures

A

background, memory

33
Q

An oracle databse is a set of _________ structures

A

physical

34
Q

When is the SGA (System global area) created?

A

When an instance is opened

35
Q

A normal logged on user wants to see the list of objects they have access to, what contains this?

A

ALL_OBJECTS

36
Q

This stores data segments that might overflow from the PGA during sorting, and temporary tables that exit during a certain session or transaction

A

Temporary files

37
Q

“lnrctr status” does what

A

Displays the host name and port number that can be used to connect through to oracle enterprise manager (and more)

38
Q

AAACw3AABAAAAWJAAA

What is the object ID here?

A

AAACw3

39
Q

T/F - “password expire;” is correct

A

False

40
Q

T/F - “create profile User_Profle LIMIT” is correct

A

True

41
Q

T/F - “password_life_time_90” is correct

A

True

42
Q

T/F - password_lock_time_1” is correct

A

True

43
Q
A