16.
Which of the following describes the function of a smart filter?
- A.It improves the legibility of a print job by adding font smoothing to the text.
- B.It detects information in print jobs that may be confidential as a measure against industrial espionage.
- C.It sends email to the person who submitted the print job, obviating the need to wait around the printer for a printout.
- D.It detects and deletes prank print jobs that are likely to have been created by miscreants trying to waste your paper and ink.
- E.It detects the type of a file and passes it through programs to make it printable on a given model of printer.
- Answer & Explanation
- Report
Answer : [E]
Explanation :
Explanation :
| The smart filter makes a print queue “smart” in that it can accept different file types (plain text, PostScript, graphics, and so on) and print them all correctly, as in option E. Font smoothing is useful on low-resolution computer monitors, but not on most printers, and adding font smoothing is not a function of a smart filter, so option A is incorrect. A smart filter doesn’t detect confidential information (option B) or prank print jobs (option D). The lpr program can be given a parameter to email a user when the job finishes (option C), but the smart filter doesn’t do this. |
17.
What information about print jobs does the lpq command display? (Select two.)
- A.The name of the application that submitted the job
- B.A numerical job ID that can be used to manipulate the job
- C.The amount of ink or toner left in the printer
- D.The username of the person who submitted the job
- E.The estimated time to finish printing the job
- Answer & Explanation
- Report
Answer : [B, D]
Explanation :
Explanation :
| The job ID (option B) and job owner (option D) are both displayed by lpq. Unless the application embeds its own name (option A) in the filename, that information won’t be present. Most printers lack Linux utilities to query ink or toner status (option C); certainly lpq can’t do this. Although knowing when your job will finish printing (option E) would be handy, this information is well beyond lpq’s capabilities to provide. |
18.
You’ve submitted several print jobs, but you’ve just realized that you mistakenly submitted
a huge document that you didn’t want to print. Assuming you can identify which job this
was, that it’s not yet printing, and that its job ID number is 749, what command would you
type to delete it from the okidata print queue?
- A.The answer depends on whether you’re using BSD LPD, LPRng, or CUPS.
- B.Type lpdel -Pokidata 749.
- C.Type lprm -Pokidata 749.
- D.Type cupsdisable -Pokidata 749.
- E.None of the above; the task is impossible.
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| The lprm command (option C) deletes a job from the print queue. It can take the -Pqueue option to specify the queue and a print job number or various other parameters to specify which jobs to delete. BSD LPD, LPRng, and CUPS all implement the lprm command, so you can use it with any of these systems, making option A incorrect. Option B presents the correct syntax but the wrong command name; there is no standard lpdel command. The cupsdisable command can be used to disable the whole queue, but not to delete a single print job, so option D is incorrect. Because option C is correct, option E obviously is not. |
19.
Which of the following is generally true of Linux programs that print?
- A.They send data directly to the printer port.
- B.They produce PostScript output for printing.
- C.They include extensive collections of printer drivers.
- D.They can print only with the help of add-on commercial programs.
- E.They specify use of the Verdana font.
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| PostScript is the de facto printing standard for Unix and Linux programs, as specified in option B. Linux programs generally do not send data directly to the printer port (option A); on a multi-tasking, multi-user system, this would produce chaos because of competing print jobs. Although a few programs include printer driver collections, most forgo this in favor of generating PostScript, making option C incorrect. Printing utilities come standard with Linux; add-on commercial utilities aren’t required, so option D is incorrect. Verdana is one of several “Web fonts” released by Microsoft. Although many Linux programs can use Verdana for printing if the font is installed, most Linux distributions don’t install Verdana by default, and few Linux programs use it for printing by default even if it’s installed, so option E is correct. |
20.
What tool might you use to print a four-page PostScript file on a single sheet of paper?
- A.PAM
- B.mpage
- C.4Front
- D.route
- E.411toppm
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| The mpage utility (option B) prints multiple input pages on a single output page, so it’s ideally suited to the specified task. PAM (option A) is the Pluggable Authentication Modules, a tool for hecomptiang to authenticate users. 4Front (option C) is the name of a company that produces commercial sound drivers for Linux. The route command (option D) is used to display or configure a Linux routing table. The 411toppm program (option E) converts files from Sony’s .411 image file format to the .ppm image file format; it doesn’t do the specified task. |
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