RHCSA Exam Questions with Complete Solutions
Why would you use logical volume management? - Answer-it's an abstraction of the total space available on a system so a single filesystem can stretch across multiple devices. you can also use it to configure mirroring by having a single logical extent...
RHCSA Exam Questions with Complete
Solutions
Why would you use logical volume management? - Answer-it's an abstraction of the
total space available on a system so a single filesystem can stretch across multiple
devices. you can also use it to configure mirroring by having a single logical extent map
to two physical extents.
What's the process for creating a logical volume with a mount point and a filesystem? -
Answer-1) create partitions
2) create physical volume
3) create volume group
4) create logical volume
5) make the filesystem
6) create the mount point folder
7) edit fstab
8) mount -av
Show your logical volumes. show your volume groups. - Answer-lvdisplay, vgdisplay
What's the syntax for creating a named, sized logical volume? - Answer-lvcreate -n
<name> -L <size> <volumegroup>
When, and how, do you create a PE in a VG? - Answer-vgcreate -s <size> <vgname>
<pvname>
How do you automatically resize a filesystem when resizing a logical volume? - Answer-
lvextend -r, or lvresize -r if you're feeling bold
Oh no you forgot to resize the filesystem in your newly expanded lv. what do you run to
fix it? - Answer-resize2fs <lvname> with no arguments.
List off the security methods on nfs shares. - Answer-none - allows anonymous write
accress. UID assigned is nfsnobody.
sys - standard linux file permissions
krb5 - kerberos and then standard file permissions.
krb5i - integrity checking.
krb5p - encrypted kerberos.
What do you need for a kerberos-enabled nfs share? - Answer-first to be joined to the
kerberos realm and second, a keytab in /etc/krb5.keytab, provided by the authenticating
server.
, How does an nfs share appear in fstab? - Answer-serverx:/share /mountpoint nfs sync 0
0
how do you grab a kerberos keytab from a server? - Answer-wget -O /etc/krb5.keytab
http://classroom.example.com/pub/keytabs/<yourkeytab>.keytab
explain the difference between wget, wget -O and wget -O-. - Answer-wget <url> will
pull a file with whatever filename it has. -O <filename> <url> names the file it pulls in. -
O- pulls to stdout.
how would you specify kerberos with integrity checking in fstab for an nfs share? -
Answer-sec=krb5i instead of "defaults"
list the contents of serverX's smb share. - Answer-smbclient -L //serverX
mount serverX's smb share in your filesystem. authenticate to the share as a guest. use
a command. - Answer-mount -t cifs -o guest //serverX/share /<mountpoint>
won't work unless you've created the mount point already with mkdir.
how does a smb share show up in fstab? - Answer-//serverX/share /mountpoint cifs
guest 0 0
mount serverX's smb share in your filesystem. authenticate to the share as a user with
the most secure method possible. use a command. - Answer-mount -t cifs -o
credentials=/secure/<user> //serverX/<share> /<mountpoint>
where /secure/<user> contains:
username=<un>
password=<pw>
domain=<dn>
what's the difference between autofs for smb and nfs? - Answer-both require subconfigs
under auto.master.d ending in .autofs formatted as <mountpoint> /etc/auto.<share>
/etc/auto.<share> needs to be formatted as:
<sharename> -fstype=cifs,credentials=/secure/<credsfile> ://serverX/<remoteshare>
what package has to be installed for smb to work? - Answer-cifs-utils
what's the recommended permissions for a secure creds file for smb authentication? -
Answer-0600
give an overview of the boot process. - Answer-1) post
2) bios loads
3) mbr partitions checked for bootloader location
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