161. Which command is used to list all the files with extension .lst ? September 13, 2025 by Admin A. ls -l *.lst B. ls lst* C. ls *.* D. ls *[lst] ✅ The correct answer is option A.
162. Which option will be used with sort command to start sorting ofter the nth column of the (m+l)th field ? September 13, 2025 by Admin A. -m.n B. +m.n C. + n.m+1 D. +(m+l).n ✅ The correct answer is option B.
163. Which of the following commands is used to remove files with confirmation prompt from the user file system which have neither been accessed nor modified i the last one year ? September 13, 2025 by Admin A. find -mtime +365 | rm B. grep (/usr/*) – mtime + 365 | -ok rm C. find -name – mtime + 365 / – ok rm D. find /user/* (-mtime + 365 – a – atime +365 ) – OK rm {} ; ✅ The correct answer is option D.
164. Which operator will be used with chmod command to assign absolute permission ? September 13, 2025 by Admin A. + B. – C. = D. % ✅ The correct answer is option C.
165. Who has developed the Linux ? September 13, 2025 by Admin A. Bob Young B. Mark Eving C. Richard Stallman D. Linus Torvalds ✅ The correct answer is option D.
166. The command used to remove the directory is_______________? September 13, 2025 by Admin A. rmdir B. rd C. remove D. rdir ✅ The correct answer is option A.
167. What TCP/IP protocol is used for file transfer with minimal capability and minimal overhead ? September 13, 2025 by Admin A. TELNET B. TFTP C. FTP D. RARP ✅ The correct answer is option B.
168. Which command is used to list out all the hidden files along with the other files ? September 13, 2025 by Admin A. ls -l B. ls -x C. ls -F D. ls -a ✅ The correct answer is option D.
169. What command is used to assign only read permission to all three categories of the file’letter’ ? September 13, 2025 by Admin A. chmod u + r, g + r, o – x letter B. chmod ugo = r letter C. chmod a – rw letter D. chmod go + r letter ✅ The correct answer is option B.
170. What service is not monitored by inetd ? September 13, 2025 by Admin A. SSH B. time C. ntalk D. finger ✅ The correct answer is option A.