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Best Quality RedHat EX200 Exam Questions
NEW QUESTION 13
Configure your Host Name, IP Address, Gateway and DNS.
Host name: station.domain40.example.com
/etc/sysconfig/network
hostname=abc.com
hostname abc.com
IP Address:172.24.40.40/24
Gateway172.24.40.1
DNS:172.24.40.1
Answer:
Explanation:
Answer see in the explanation.
Explanation/Reference:
# cd /etc/syscofig/network-scripts/
# ls
# vim ifcfg-eth0 (Configure IP Address, Gateway and DNS) IPADDR=172.24.40.40 GATEWAY=172.24.40.1
DNS1=172.24.40.1
# vim /etc/sysconfig/network
(Configure Host Name)
HOSTNAME= station.domain40.example.com
OR
Graphical Interfaces:
System->Preference->Network Connections (Configure IP Address, Gateway and DNS) Vim /etc/ sysconfig/network
(Configure Host Name)
NEW QUESTION 14
Part 2 (on Node2 Server)
Task 1 [Controlling the Boot Process]
Interrupt the boot process and reset the root password. Change it to kexdrams to gain access to the system
Answer:
Explanation:
* 1. Reboot the server pressing by Ctrl+Alt+Del
2. When the boot-loader menu appears, press the cursor keys to highlight the default boot-loader entry
3. Press e to edit the current entry.
4. Use the cursor keys to navigate to the line that starts with linux.
5. Press End to move the cursor to the end of the line.
6. Append rd.break to the end of the line.
7. Press Ctrl+x to boot using the modified configuration.
8. At the switch_root prompt
* switch_root:/# mount -o remount,rw /sysroot
switch_root:/# chroot /sysroot
sh-4.4# echo kexdrams | passwd --stdin root
Changing password for user root.
passwd: all authentication tokens updated successfully.
sh-4.4# touch /.autorelabel
sh-4.4# exit; exit
* Type exit twice to continue booting your system as usual.
NEW QUESTION 15
The system ldap.example.com provides an LDAP authentication service.
Your system should bind to this service as follows:
The base DN for the authentication service is dc=domain11, dc=example, dc=com LDAP is used to provide both account information and authentication information. The connection should be encrypted using the certificate at http://host.domain11.example.com/pub/domain11.crt When properly configured, ldapuserX should be able to log into your system, but will not have a home directory until you have completed the autofs requirement. Username: ldapuser11 Password: password
Answer:
Explanation:
see explanation below.
Explanation
* system-config-authentication LDAP user DN=dc=domain11,dc=example,dc=com Server= host.domain11.example.com Certificate
http://host.domain11.example.com/pub/domain11.crt (enter url carefully, there maybe // or ..) LDAP password OK starting sssd
* su -ldapuser11 Display Bash prompt #exit
NEW QUESTION 16
Search files.
Find out files owned by jack, and copy them to directory /root/findresults
Answer:
Explanation:
see explanation below.
Explanation
mkdir/root/findfiles
find / -user jack -exec cp -a {} /root/findfiles/ \; ls /root/findresults
NEW QUESTION 17
Configure /var/tmp/fstab Permission.
Copy the file /etc/fstab to /var/tmp/fstab. Configure var/tmp/fstab permissions as the following:
Owner of the file /var/tmp/fstab is Root, belongs to group root
File /var/tmp/fstab cannot be executed by any user
User natasha can read and write /var/tmp/fstab
User harry cannot read and write /var/tmp/fstab
All other users (present and future) can read var/tmp/fstab.
Answer:
Explanation:
cp /etc/fstab /var/tmp/
/var/tmp/fstab view the owner setfacl -m u:natasha:rw- /var/tmp/fstab setfacl -m u:haryy:--- /var/tmp/fstab Use getfacl /var/tmp/fstab to view permissions
NEW QUESTION 18
SIMULATION
Download the document from ftp://instructor.example.com/pub/testfile, find all lines containing [abcde] and redirect to /MNT/answer document, then rearrange the order according the original content.
Answer:
Explanation:
See explanation below.
Explanation/Reference:
Explanation: Download the file to /tmp first
grep [abcde] /tmp/testfile > /mnt/answer
NEW QUESTION 19
SIMULATION
Create a volume group, and set the size is 500M, the size of single PE is 16M. Create logical volume named lv0 in this volume group, set size is 20 PE, make it as ext3 file system, and mounted automatically under data.
Answer:
Explanation:
See explanation below.
Explanation/Reference:
Explanation: fdisk /dev/vda
pvcreate /dev/vda3
vgcreate -s 16M vg0 /dev/vda3
lvcreate -n lv0 -l 20 vg0
mkfs.ext3 /dev/mapper/vg0-lv0
mkdir /data
/etc/fstab:
/dev/mapper/vg0-lv0 /data ext3 defaults 0 0
mount -a
mount | grep data
NEW QUESTION 20
What implications does container virtualization have for DevOps? (Choose two answers.)
- A. Containers require developers to have detailed knowledge of their IT infrastructure.
- B. Containers require application specific adjustment to the container platform.
- C. Containers decouple the packaging of an application from its infrastructure.
- D. Containers let developers test their software under production conditions.
- E. Containers complicate the deployment of software and require early deployment tests.
Answer: C,D
Explanation:
Explanation/Reference:
Reference http://anandmanisankar.com/posts/container-docker-PaaS-microservices/
NEW QUESTION 21
What happens when a merge conflict occurs in git? (Choose two correct answers.)
- A. Conflict markers are added to the files.
- B. A new branch containing the remote changes is created.
- C. The newest version is placed in the local repository.
- D. The affected files are flagged as conflicting.
- E. The conflicting files remain unchanged in the local repository.
Answer: C,D
NEW QUESTION 22
Create a 2G swap partition which take effect automatically at boot-start, and it should not affect the original swap partition.
Answer:
Explanation:
# fdisk /dev/sda
p
(check Partition table)
n
(create new partition: press e to create extended partition, press p to create the main partition, and the extended partition is further divided into logical partitions) Enter
+2G t
8 I
82
W
partx -a /dev/sda
partprobe
mkswap /dev/sda8
Copy UUID
swapon -a
vim /etc/fstab
UUID=XXXXX swap swap defaults 0 0
(swapon -s)
NEW QUESTION 23
There are two different networks 192.168.0.0/24 and 192.168.1.0/24. Where 192.168.0.254 and
192.168.1.254 IP Address are assigned on Server. Verify your network settings by pinging 192.168.1.0/24 Network's Host.
Answer:
Explanation:
vi /etc/sysconfing/network NETWORKING=yes HOSTNAME=station?.example.com GATEWAY=192.168.0.254 service network restart
2.vi /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=X.X.X.X
NETMASK=X.X.X.X
GATEWAY=192.168.0.254
ifdown eth0
ifup eth0
NEW QUESTION 24
One Logical Volume is created named as myvol under vo volume group and is mounted. The Initial Size of that Logical Volume is 400MB. Make successfully that the size of Logical Volume 200MB without losing any data. The size of logical volume 200MB to 210MB will be acceptable.
Answer:
Explanation:
see explanation below.
Explanation
* First check the size of Logical Volume: lvdisplay /dev/vo/myvol
* Make sure that the filesystem is in a consistent state before reducing:
# fsck -f /dev/vo/myvol
* Now reduce the filesystem by 200MB.
# resize2fs /dev/vo/myvol 200M
* It is now possible to reduce the logical volume. #lvreduce /dev/vo/myvol -L 200M
* Verify the Size of Logical Volume: lvdisplay /dev/vo/myvol
* Verify that the size comes in online or not: df -h
NEW QUESTION 25
Upgrading the kernel as 2.6.36.7.1, and configure the system to Start the default kernel, keep the old kernel available.
Answer:
Explanation:
Answer see in the explanation.
Explanation/Reference:
# cat /etc/grub.conf
# cd /boot
# lftp it
# get dr/dom/kernel-xxxx.rpm
# rpm -ivh kernel-xxxx.rpm
# vim /etc/grub.conf
default=0
NEW QUESTION 26
CORRECT TEXT
Create a catalog under /home named admins. Its respective group is requested to be the admin
group. The group users could read and write, while other users are not allowed to access it. The
files created by users from the same group should also be the admin group.
Answer:
Explanation:
# cd /home/
# mkdir admins /
# chown .admin admins/
# chmod 770 admins/
# chmod g+s admins/
NEW QUESTION 27
Make on data that only the user owner and group owner member can fully access.
Answer:
Explanation:
chmod 770 /data
Verify using : ls -ld /data Preview should be like:
drwxrwx--- 2 root sysadmin 4096 Mar 16 18:08 /data
To change the permission on directory we use the chmod command.
According to the question that only the owner user (root) and group member (sysadmin) can fully access the directory so: chmod 770 /data
NEW QUESTION 28
The firewall must be open.
Answer:
Explanation:
see explanation below.
Explanation
/etc/init.d/iptables start
iptables -F
iptables -X
iptables -Z
/etc/init.d/iptables save
chkconfig iptables on
NEW QUESTION 29
Part 1 (on Node1 Server)
Task 9 [Managing Files from the Command Line]
Search the string nologin in the /etc/passwd file and save the output in /root/strings
Answer:
Explanation:
* [root@node1 ~]# cat /etc/passwd | grep nologin > /root/strings
[root@node1 ~]# cat /root/strings
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
NEW QUESTION 30
Install a FTP server, and request to anonymous download from /var/ftp/pub catalog. (it needs you to configure yum direct to the already existing file server. )
Answer:
Explanation:
Answer see in the explanation.
Explanation/Reference:
# cd /etc/yum.repos.d
# vim local.repo
[local]
name=local.repo
baseurl=file:///mnt
enabled=1
gpgcheck=0
# yum makecache
# yum install -y vsftpd
# service vsftpd restart
# chkconfig vsftpd on
# chkconfig --list vsftpd
# vim /etc/vsftpd/vsftpd.conf
anonymous_enable=YES
NEW QUESTION 31
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