Linux System Administration Quiz

What is true about the root user and NFS?

• NFS shares don't allow root access by default

• NFS automatically masks out share permissions

• NFS automatically maps all root UID's to the local user "rootsquash"

• NFS ignores all users with a UID of 0 and a GID of 0

Which of the following commands are used to remove a package from a Linux system?

• yum -rm packagename

• rpm erase packagename

• yum -r packagename

• dnf remove packagename

To query DNS (Internet domain name) servers, you use the command:

• Dns

• Lsrouted

• Dnsquery

• nslookup

Which firewall is most commonly used on Linux?

• Ipchains

• iptables

• Ipfw

• pf

Which of the following commands are used to remove a package from a Linux system?

• dnf update packagename

• dnf install packagename

• dnf -delete packagename

• dnf remove packagename

Which command was used to get the results shown below?

• dnf -y install samba

• dnf -y remove samba

• dnf -y delete samba

• dnf -y erase samba

What command is used to monitor connections to the SMB server?

• smbclient

• testparm

• smbstatus

• smbstat

Which port is used for DNS?

• 110

• 53

• 23

• 52

Which Apache Directive specifies the location of the HTTP documents?

• RootDocument

• ServerRoot

• DocumentRoot

• RootServer

What directory by default contains the delivered mail for each user?

• ~/mail/

• /var/mail/

• /usr/mail/

• /var/spool/mail/