{"id":6911,"date":"2019-10-07T10:42:49","date_gmt":"2019-10-07T10:42:49","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=6911"},"modified":"2020-05-28T10:21:03","modified_gmt":"2020-05-28T10:21:03","slug":"linux-interview-questions-and-answer-part-4","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/linux-interview-questions-and-answer-part-4\/","title":{"rendered":"Linux Interview Questions and Answer &#8211; Part 4"},"content":{"rendered":"\n<ol class=\"wp-block-list\"><li>What is MAC address? can we change the physical address?<\/li><li> How to check system uptime?<\/li><li> How to check memory information?<\/li><li> What is SWAP?<\/li><li> What is the exact memory free in your system?<\/li><li> What is cache memory?<\/li><li> What if you can do rm -rvf \/?<\/li><li> Kinds of permission in Linux?<\/li><li> What is vim &amp; vi?<\/li><li> What is pipe |?<\/li><li> What is grep command?<\/li><li> What Find command does?<\/li><li> How to redirect commands output?<\/li><li> What is systemd in Linux?<\/li><li> What does systemctl do?<\/li><li> If you run a command like nautilus in terminal, whether it will block your terminal or not?<\/li><li> If yes, whats the solution of this to not to unblock the terminal without closing the command application?<\/li><li> What is rsyslog?<\/li><li> What is SSH-tunnel?<\/li><li> How to set history size?<\/li><li> How to extend VG?<\/li><li> What are logical &amp; extended partitions?<\/li><li> Explain the steps to reset root password at boot time?<\/li><li> What are run-levels? How many types of run levels are there?<\/li><li> How we change the run level?<\/li><\/ol>\n","protected":false},"excerpt":{"rendered":"<p>What is MAC address? can we change the physical address? How to check system uptime? How to check memory information? What is SWAP? What is the exact memory free in&#8230; <\/p>\n","protected":false},"author":1,"featured_media":7820,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[4957],"tags":[],"class_list":["post-6911","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/6911","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/comments?post=6911"}],"version-history":[{"count":1,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/6911\/revisions"}],"predecessor-version":[{"id":6912,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/6911\/revisions\/6912"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media\/7820"}],"wp:attachment":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=6911"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=6911"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=6911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}