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operating systems Online Quiz - 5

Description: operating systems Online Quiz - 5
Number of Questions: 20
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Tags: operating systems
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Clicking on "Tools" and then "Map Network Drive" on a home/single system, does what?

technology operating systems

  1. Allows you to search the network for other drives

  2. Allows you to connect to a different network drive

  3. Nothing

  4. Shows you a map of the information on the hard drive

Show answer
Correct Option: C

Which word cannot be used to create a folder on Desktop in Windows OS?
technology operating systems

  1. WinWord

  2. CMD

  3. CON

  4. WinXP

Show answer
Correct Option: C

L+ALT+DEL is also called the ______ key.
technology operating systems

  1. CAD

  2. Trouble

  3. Reset

  4. Restart

Show answer
Correct Option: A

What is the first release version of windows ?

technology operating systems

  1. V1.02

  2. V1.01

  3. V2.01

  4. V2.02

Show answer
Correct Option: B

Which statement(s) is/are true related to Navigational attributes vs. Dimensional attributes?

technology operating systems

  1. Dimensional attributes have a performance advantage over Navigational attributes for queries

  2. Change history will be available if an attribute is defined as navigational

  3. History of changes is available if an attribute is included as a characteristic in the cube

  4. All of the above

Show answer
Correct Option: A,C

Select the true statement(s) about read modes in BW:

technology operating systems

  1. Read mode determines how the OLAP processor retrieves data during query execution and navigation

  2. Three different types of read modes are available

  3. Can be set only at individual query level

  4. None of the above

Show answer
Correct Option: A,B

True or False? A reference characteristic will use the SID table and master data table of the referred characteristic.

technology operating systems

  1. True

  2. False

Show answer
Correct Option: A

The following statements are true regarding the ODS request deletion.

technology operating systems

  1. It is not possible to delete a request from ODS after the request has been activated.

  2. Deleting an (inactive) request will delete all requests that have been loaded into the ODS after this request was loaded.

  3. Deleting an active request will delete the request from the change log table.

  4. None of the above.

Show answer
Correct Option: C

AI Explanation

To answer this question, we need to understand the concept of ODS (Operational Data Store) and the process of request deletion.

Option A) It is not possible to delete a request from ODS after the request has been activated. This statement is incorrect. In an ODS, it is possible to delete a request even after it has been activated. However, deleting an active request may have implications, which we will discuss in the next options.

Option B) Deleting an (inactive) request will delete all requests that have been loaded into the ODS after this request was loaded. This statement is incorrect. Deleting an inactive request will not delete other requests that have been loaded into the ODS after it was loaded. Each request in the ODS is independent and can be deleted individually.

Option C) Deleting an active request will delete the request from the change log table. This statement is correct. When an active request is deleted from the ODS, it will be removed from the change log table. The change log table keeps track of all the changes made to the ODS. Deleting the request from the change log table ensures that the changes made by that request are undone.

Option D) None of the above. This statement is incorrect. Option C is the correct statement regarding ODS request deletion.

Therefore, the correct answer is Option C. Deleting an active request will delete the request from the change log table.

what is the command to move all files from the parent directory to the current directory?

technology operating systems

  1. mv ../* .

  2. ../*. mv

  3. ../* mv

  4. mv ../*

Show answer
Correct Option: A

what is the octal notation for the symbolic expression o+rw?

technology operating systems

  1. 464

  2. 644

  3. 646

  4. 462

Show answer
Correct Option: C

What is the command to diplay the only current month?

technology operating systems

  1. date +m

  2. date %m

  3. +%m date

  4. date +%m

Show answer
Correct Option: D

tput command is used for clearing the screen

technology operating systems

  1. True

  2. False

Show answer
Correct Option: A

What is the commnad to display current working directory ?

technology operating systems

  1. cd

  2. pwd

  3. cd .

  4. cd ..

Show answer
Correct Option: B

what is the octal notation for the symbolic expression o+rw?

technology operating systems

  1. 646

  2. 464

  3. 644

  4. 462

Show answer
Correct Option: A

what is the command to move all files from the parent directory to the current directory

technology operating systems

  1. mv ../*

  2. mv ../* .

  3. ../*. mv

  4. ../* mv

Show answer
Correct Option: B

Which of these is not a type of unix?

technology operating systems

  1. Linux

  2. Xenix

  3. SCO unix

  4. Mac

Show answer
Correct Option: D

what character in unix is treated as a command separator?

technology operating systems

  1. ;

  2. :

  3. `

  4. "

Show answer
Correct Option: A

System files are stored in which of these directories?

technology operating systems

  1. /dev

  2. /sbin

  3. /tty

  4. /spool

Show answer
Correct Option: B

Bash shell is a type of bourne shell.

technology operating systems

  1. True

  2. False

Show answer
Correct Option: A

What command shows information about processes without terminals?

technology operating systems

  1. ps -a

  2. ps

  3. ps -x

  4. ps -f

Show answer
Correct Option: C

AI Explanation

To answer this question, you need to have knowledge about the ps command in Linux.

Let's go through each option to understand why it is correct or incorrect:

Option A) ps -a - This option displays information about all processes running on the system, regardless of whether they have a terminal or not. This option is incorrect.

Option B) ps - This option displays information about currently running processes with a terminal. This option is incorrect.

Option C) ps -x - This option displays information about all processes without a controlling terminal. This option is correct.

Option D) ps -f - This option displays detailed information about currently running processes, including the parent-child relationship. This option is incorrect.

The correct answer is C) ps -x. This option is correct because it specifically shows information about processes without terminals.

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