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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 12 Sep 2025 12:13 PM study24x7 study24x7

The Octal number to be given alogn with chmod command to make a file readable, writable and executable to the owner, readable and executable to group and others is:

A

000

B

755

C

744

D

555

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 12 Sep 2025 12:12 PM study24x7 study24x7

Which of the following files will displayed by this command cat *ch*

A

patch

B

catch

C

.ch

D

All of the above

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 12 Sep 2025 12:09 PM study24x7 study24x7

Which of the following commands is used to display the directory attributes rather than its contents?

A

ls -l -d

B

ls -l

C

ls -x

D

ls -F

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 11 Sep 2025 01:23 PM study24x7 study24x7

Which command is used to remove the read permission of the file 'note' from both the group and others?

A

chmod go+r note

B

chmod go+rw note

C

chmod go-x note

D

chmod go-r note

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 11 Sep 2025 01:23 PM study24x7 study24x7

Which command sends the word count of the file infile to the newfile.

A

wc infile >newfile

B

wc <infile >newfile

C

wc infile - newfile

D

wc infile | newfile

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 11 Sep 2025 01:22 PM study24x7 study24x7

Which command is used to extract specific columns from the file?

A

cat

B

cut

C

grep

D

paste

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 10 Sep 2025 12:52 PM study24x7 study24x7

Which of the following keys is used to replace a single character with new text?

A

S

B

s

C

r

D

C

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 10 Sep 2025 12:51 PM study24x7 study24x7

Which command is used to remove a directory?

A

rd

B

rmdir

C

dldir

D

rdir

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 10 Sep 2025 12:51 PM study24x7 study24x7

Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3?

A

chmod u+x emp[1-3]

B

chmod 777 emp*

C

chmod u+r ??? emp

D

chmod 222 emp?

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 09 Sep 2025 06:08 PM study24x7 study24x7

Which command is used to copy all files having the string chap and any two characters after that to the progs directory?

A

cp chap?? progs

B

cp chap* progs

C

cp chap[12] /progs/*.*

D

cp chap?? /progs/*

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 09 Sep 2025 06:07 PM study24x7 study24x7

Which command is used to display the top of the file?

A

cat

B

head

C

more

D

grep

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 09 Sep 2025 06:07 PM study24x7 study24x7

Which command is used to sort the lines of data in a file in reverse order

A

sort

B

sh

C

st

D

sort -r

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 08 Sep 2025 05:58 PM study24x7 study24x7

Which symbol will be used with grep command to match the pattern pat at the beginning of a line?

A

^pat

B

$pat

C

pat$

D

pat^

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 08 Sep 2025 05:57 PM study24x7 study24x7

The _____ symbol is used in a flowchart to represent a step that gets information from the user.

A

Input/Output

B

Process

C

Selection/repetition

D

Start/Stop

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 08 Sep 2025 05:56 PM study24x7 study24x7

Acceptance testing is

A

running the system with line data by the actual user

B

making sure that the new programs do in fact process certain transactions according to Specifications

C

is checking the logic of one or more programs in the candidate systems

D

testing changes made in an existing or a new program

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 05 Sep 2025 11:55 AM study24x7 study24x7

The records in a file or magnetic tape

A

can only be accessed serially

B

have to be arranged in a key sequence

C

are meant for backup

D

cannot be transferred to a disk file

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 05 Sep 2025 11:50 AM study24x7 study24x7

The starting point for development of an MIS is;

A

identification of business processes that are the essence of the business

B

a distributed database management

C

the system has a large number of PCs and a LAN.

D

purchase of a mini computers

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 05 Sep 2025 11:49 AM study24x7 study24x7

Back-up procedure helps in

A

restoring the operation whenever there is a disk failure

B

restoring both application and system software whenever there is disk corruption.

C

restoring the data files whenever there is a system crash

D

All of the above

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 04 Sep 2025 10:56 AM study24x7 study24x7

Which are the tools not used for System Analysis

A

System - test data

B

Decision table

C

Data Flow Diagram

D

Flowcharts

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52
Computer Science
6 followers study24x7 04 Sep 2025 10:55 AM study24x7 study24x7

The rule(s) to follow in constructing decision tables is (are):

A

a decision should be given a name

B

the logic of the table is independent of the sequence in which conditions rules are written, but the action takes place in the order is which the events occur.

C

standardized language must be used consistently.

D

All of the above

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