Questions in: Engineering

Ques:- Several of your users have been scheduling large at jobs to run during peak load times. How can you prevent anyone from scheduling an at job?Choose one:a. delete the file /etc/at.denyb. create an empty file called /etc/at.denyc. create two empty files: /etc/at.deny and /etc/at.allow filed. create an empty file called /etc/at.allow

Ques:- What text filter can you use to display a binary file in octal numbers?

Ques:- You need to view the contents of the tarfile called MyBackup.tar. What command would you use? __________

Ques:- How the handle helps in manipulating the kernel objects?

Ques:- You have two files each ten lines long. What text filter could you use to combine the two files so that each line of the output contains the corresponding line from each file?

Ques:- Name few functions that create Kernel Objects?

Ques:- How to switch to a super user status to gain privileges?

Ques:- How to terminate a process which is running and the specialty on command kill?

Ques:- What about the usage count in the parent child process tables?

Ques:- You have a tab delimited file called phonenos and want to change each tab to four spaces. What command can you use to accomplish this?Choose one:a. expand -t4 phonenosb. expand phonenosc. expand -n4 phonenosd. expand -t phonenos

Ques:- How many prompts are available in a UNIX system?

Ques:- How to find free space in Unix/Linux?

Ques:- What are Named Objects?

Ques:- What are shell variables?

Ques:- How can you determine who has scheduled at jobs?Choose one:a. at -lb. at -qc. at -dd. atwho

Ques:- You have a file called phonenos that consists of two fields per line, telephone number and name, with the fields being separated by a comma (,). You want to have a list of the names only. Which command will accomplish this?Choose one:a. cut -d, -f2 phonenosb. cut -d, -f1 phonenosc. cut -d -f2 phonenosd. cut -f2 phonenos

Ques:- You issue the command head *. What would the resulting output be?Choose one:a. The first ten lines of each file in the working directory would be displayed preceeded by the file's name.b. The first five lines of each file in the working directory would be displayed preceeded by the file's name.c. The name of each file in the working directory would be displayed.d. The first ten lines of each file in your home directory would be displayed preceeded by the file's name.

Ques:- What is handle?

Ques:- When defining a cronjob, there are five fields used to specify when the job will run. What are these fields and what is the correct order?Choose one:a. minute, hour, day of week, day of month, monthb. minute, hour, month, day of month, day of weekc. minute, hour, day of month, month, day of weekd. hour, minute, day of month, month, day of week

Ques:- What is the difference between Swapping and Paging?