McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Master of Computer Applications (MCA) , Programming Languages .
Chapters
| 51. |
Which command will you use to see the available routes? |
| A. | show route |
| B. | route status |
| C. | netstat -r |
| D. | none of the mentioned |
| Answer» C. netstat -r | |
| 52. |
The permission -rwxr-xr-t represented in octal expression will be |
| A. | 0777 |
| B. | 1755 |
| C. | 1754 |
| D. | 2754 |
| Answer» B. 1755 | |
| 53. |
With a umask value of 112, what is the default permission assigned to newly created regular file? |
| A. | —x–x-wx |
| B. | -rw-rw-r– |
| C. | -r-xr-x-r– |
| D. | -rw-rw-r– |
| Answer» D. -rw-rw-r– | |
| 54. |
Which command is used to assign read-write permission to the owner? |
| A. | chmod a+r file |
| B. | chmod o+r file |
| C. | chmod u=rw file |
| D. | chmod og-r file |
| Answer» C. chmod u=rw file | |
| 55. |
Given the command $ chmod o-w datafile |
| A. | sets write permission to everyone for datafile |
| B. | sets write permission to others for datafile |
| C. | clears write permission to everyone for datafile |
| D. | clears write permission to others for datafile |
| Answer» D. clears write permission to others for datafile | |
| 56. |
Which of these commands will set the permissions on file textfile to read and write for the owner, read for the group, and nothing for everyone else? |
| A. | chmod 046 textfile |
| B. | chmod 640 textfile |
| C. | chmod 310 textfile |
| D. | chmod rw r nil textfile |
| Answer» B. chmod 640 textfile | |
| 57. |
If you are a root user, how can you grand execute permission only for the owner of the file project1? |
| A. | chmod +x project1 |
| B. | chmod u+x project1 |
| C. | chmod a+x project1 |
| D. | chmod U+X project1 |
| Answer» B. chmod u+x project1 | |
| 58. |
A user executes the following command successfully: $ chmod +x file1.txt Which of the following is true of the output of this command? |
| A. | The command results in adding execute permission to the user who ran this command |
| B. | The command results in adding execute permission for the owner of the file |
| C. | The command results in an error since the file is not an executable file |
| D. | The command results in adding execute permission for all users (i.e., user,group & others) |
| Answer» D. The command results in adding execute permission for all users (i.e., user,group & others) | |
| 59. |
What does chmod +t do? |
| A. | wrong syntax |
| B. | set effective userid for filename |
| C. | set effective groupid for filename |
| D. | set the sticky bit |
| Answer» D. set the sticky bit | |
| 60. |
Which of the following umask settings doesn’t allow execute permission to be set by default on directory files |
| A. | 222 |
| B. | 111 |
| C. | 000 |
| D. | 444 |
| Answer» D. 444 | |
| 61. |
Which of the following umask settings allow execute permission to be set by default on regular files |
| A. | 222 |
| B. | 111 |
| C. | 000 |
| D. | None of the given choices |
| Answer» D. None of the given choices | |
| 62. |
The command chmod 4777 a.out |
| A. | will set the suid bit of a.out |
| B. | will set the suid bit of a.out only if the command is issued by root |
| C. | is not a valid command |
| D. | will set the sticky bit of a.out |
| Answer» A. will set the suid bit of a.out | |
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