Arista Arista Linux Essentials Exam
Arista Linux Essentials (Page 7 )

Updated On: 30-Jan-2026

When using the sudo command to run something as root, which password is required?

  1. The user’s password
  2. The enable password
  3. The shadow password
  4. The root password

Answer(s): D



When configuring SSH, which file is needed for key-based authentication?

  1. known_hosts
  2. /etc/shadow
  3. /etc/passwd
  4. authorized_keys

Answer(s): D


Reference:

https://www.digitalocean.com/community/tutorials/how-to-configure-ssh-key-based-authentication-on-a-linux-server



On a typical Linux system, where is the boot loader located?

  1. BIOS
  2. MBR
  3. VBR
  4. Kernel

Answer(s): B



Why is iostat not needed on an Arista switch?

  1. The CPU can’t see the front panel interfaces to report on traffic
  2. EOS is installed on an in-memory filesystem that does not use a hard disk
  3. The memory is always full on an Arista switch
  4. The I/O on an Arista switch is too fast for the CPU
  5. Arista switches don’t support hyperthreading

Answer(s): E



On an Arista switch, where in the filesystem is the flash drive mounted?

  1. /root
  2. /boot
  3. /mnt
  4. /etc

Answer(s): C


Reference:

https://www.arista.com/assets/data/pdf/user-manual/um-eos/Chapters/6_Booting%20the%20Switch.pdf



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