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Linux Interview Questions and Answer – Part 11

It is common for source packages to be downloaded to which directory?

  • /src
  • /usr/src (Ans)
  • /home
  • /usr/bin

Using lsof which character is used to filter by host

  • #
  • =
  • @ (Ans)
  • H

Uptime shows the load averages of what time periods?

  • 1,10 and 15 minutes
  • 1,2,3 seconds
  • 1,5 and 15 minutes (Ans)
  • 1,2,3 minutes

Which template can be used to fill in default values for Nagios hosts?

  • generic-host (Ans)
  • host
  • host-generic
  • generic_host

Which option used with sar will allow you to read from a certain file?

  • -f (Ans)
  • -I
  • -F
  • -i

Which option can be used with nagios3 to test the configuration?

  • -v (Ans)
  • -t
  • -r
  • -f

Which option can specify a DNS server to use with dig

  • @8.8.8.8 (Ans)
  • AT8.8.8.8.8
  • -s8.8.8.8
  • =8.8.8.8

Which MySQL command is used to new accounts take effect immediately?

  • READ USERS
  • EXIT
  • FLUSH PRIVILEGES (Ans)
  • LOAD USERS

How can we list sockets with netstat

  • -t
  • -s
  • -u
  • -x (Ans)

Which tape device represent a rewindable model?

  • /dev/st0 (Ans)
  • /dev/rwst0
  • /dev/rst0
  • /dev/nst0

By default which port is used by the Bacula Director

  • 9100
  • 9102
  • 9101 (Ans)
  • 9103

On a Red Hat based system how are the pre-requisites to ./configure installed?

  • sudo yum groupinstall “Development Tools” (Ans)
  • sudo install tools
  • sudo apt-get install build-essentials
  • sudo zypper install –type pattern devel_basis

What is the name os the dhcp service on Debian based systems?

  • dhcpd
  • isc-dhcp-server (Ans)
  • dhcpcd
  • dhcp

Which web user account is created during the installation of nagios3?

  • nagios
  • admin
  • nagiosadmin (Ans)
  • root

Which jump target do we configure when setting up NAT?

  • RNAT
  • NAT
  • MASQUERADE (Ans)
  • iptables

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I'm Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms. I publish technical articles at DevOps School, travel stories at Holiday Landmark, stock market insights at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow, and SEO and digital marketing strategies at Wizbrand.

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