EX300 Dumps Real Questions To Prepare For Red Hat Certified Engineer (RHCE) Exam

On May 23, 2022May 23, 2022By passitdump

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These questions are from EX300 free dumps. All questions in EX300 dumps are from the latest EX300 real exams.

Question 1:

SIMULATION

RHCE Test Configuration Instructions

Information for the two systems you will use in test is the following:

system1.group3.example.com: is one of the main sever. system2.group3.example.com: mainly used as a client.

Password for both of the two systems is atenorth

System\’s IP is provided by DHCP, you can regard it as normal, or you can reset to Static IP in accordance with the following requirements:

system1.group3.example.com: 172.24.3.5

system2.group3.example.com: 172.24.3.10 The subnet mask is 255.255.255.0 Your system is a member of DNS domain group3.example.com. All systems in DNS domain group3.example.com are all in subnet 172.24.3.0/255.255.255.0, the same all systems in this subnet are also in group3.example.com, unless

specialized, all network services required to be configured can be accessed by systems of domain group3.

host.group3.example.com provides a centralized authentication service domain

GROUP3.EXAMPLE.COM, both system1 and system2 have already been pre-configured to be the client for this domain, this domain provides the following user account:

Firewall is enabled by default, you can turn it off when deemed appropriate, other settings about firewall may be in separate requirements.

Your system will be restarted before scoring, so please ensure that all modifications and service configurations you made still can be operated after the restart without manual intervention, virtual machine instances of all examinations must be able to enter the correct multi-user level after restart without manual assistance, it will be scored zero if the test using virtual machine system cannot be restarted or be properly restarted.

Corresponding distribution packages for the testing using operating system Red Hat Enterprise Linux version can be found in the following link: http://server1.group3.example.com/rhel

You will notice that some requirements which clearly do not allow services be accessed by service domain my133t.org, systems of this domain are in subnet 172.25.1.0/252.255.255.0, and systems of these subnets also belong to my 133t.org domain.

PS: Notice that some test questions may depend on other exam questions, for example, you might be asked to perform a series of restrictions on a user, but this user creation may be required in other questions. For convenient identification, each exam question has some radio buttons to help you identify which questions you have already completed or not completed. Certainly, you do not need to care these buttons if you don\’t need them.

Configure SELINUX Modify the state of selinux to Enforcing mode. Use VIM /etc/selinux

A. explanation

Correct Answer: A

Question 2:

SIMULATION

RHCE Test Configuration Instructions

Information for the two systems you will use in test is the following:

system1.group3.example.com: is one of the main sever. system2.group3.example.com: mainly used as a client.

Password for both of the two systems is atenorth

System\’s IP is provided by DHCP, you can regard it as normal, or you can reset to Static IP in accordance with the following requirements:

system1.group3.example.com: 172.24.3.5

system2.group3.example.com: 172.24.3.10

The subnet mask is 255.255.255.0

Your system is a member of DNS domain group3.example.com. All systems in DNS domain group3.example.com are all in subnet 172.24.3.0/255.255.255.0, the same all systems in this subnet are also in group3.example.com, unless

specialized, all network services required to be configured can be accessed by systems of domain group3.

host.group3.example.com provides a centralized authentication service domain

GROUP3.EXAMPLE.COM, both system1 and system2 have already been pre-configured to be the client for this domain, this domain provides the following user account:

Firewall is enabled by default, you can turn it off when deemed appropriate, other settings about firewall may be in separate requirements.

Corresponding distribution packages for the testing using operating system Red Hat Enterprise Linux version can be found in the following link: http://server1.group3.example.com/rhel

Configure Link Aggregation Configure a link between systeml.group3.example.com and system2. group3.example.com as required: This link uses interfaces eth1 and eth2 This link still can work when one interface failes This link uses the following address 172.16.3.20/255.255.255.0 on systeml This link uses the following address 172.16.3.25/255.255.255.0 on system2 This link remains normal after the system is restarted

A. explanation

Correct Answer: A

If you forget how to write the name, you can search examples in /var/share/doc/team-1.9/example_configs/

Question 3:

SIMULATION

RHCE Test Configuration Instructions

Information for the two systems you will use in test is the following:

system1.group3.example.com: is one of the main sever. system2.group3.example.com: mainly used as a client.

Password for both of the two systems is atenorth

System\’s IP is provided by DHCP, you can regard it as normal, or you can reset to Static IP in accordance with the following requirements:

system1.group3.example.com: 172.24.3.5

specialized, all network services required to be configured can be accessed by systems of domain group3.

host.group3.example.com provides a centralized authentication service domain

GROUP3.EXAMPLE.COM, both system1 and system2 have already been pre-configured to be the client for this domain, this domain provides the following user account:

Firewall is enabled by default, you can turn it off when deemed appropriate, other settings about firewall may be in separate requirements.

Corresponding distribution packages for the testing using operating system Red Hat Enterprise Linux version can be found in the following link: http://server1.group3.example.com/rhel

Part of the requirements include host security, ensure your host security limit does not prevent the request to allow the host and network, although you correctly configured the network service but would have to allow the host or network is blocked, this also does not score. You will notice that some requirements which clearly do not allow services be accessed by service domain my133t.org, systems of this domain are in subnet 172.25.1.0/252.255.255.0, and systems of these subnets also belong to my 133t.org domain.

Configure IPV6 Address

Configure interface eth0 on your test system, using the following IPV6 addresses: 1) The address of system1 should be 2003:ac18::305/64

(2)

The address of system2 should be 2003:ac18::30a/64

(3)

Both two systems must be able to communicate with systems in network 2003:ac18/64 (4) The address must still take effect after restart

(5)

Both two systems must maintain the current Ipv4 address and can communicate

explanation

Correct Answer: A

Question 4:

SIMULATION

RHCE Test Configuration Instructions

Information for the two systems you will use in test is the following:

system1.group3.example.com: is one of the main sever. system2.group3.example.com: mainly used as a client.

Password for both of the two systems is atenorth

System\’s IP is provided by DHCP, you can regard it as normal, or you can reset to Static IP in accordance with the following requirements:

system1.group3.example.com: 172.24.3.5

system2.group3.example.com: 172.24.3.10

The subnet mask is 255.255.255.0 Your system is a member of DNS domain group3.example.com. All systems in DNS domain group3.example.com are all in subnet 172.24.3.0/255.255.255.0, the same all systems in this subnet are also in group3.example.com, unless specialized, all network services required to be configured can be accessed by systems of domain group3.

host.group3.example.com provides a centralized authentication service domain

GROUP3.EXAMPLE.COM, both system1 and system2 have already been pre-configured to be the client for this domain, this domain provides the following user account:

Firewall is enabled by default, you can turn it off when deemed appropriate, other settings about firewall may be in separate requirements.

Corresponding distribution packages for the testing using operating system Red Hat Enterprise Linux version can be found in the following link: http://server1.group3.example.com/rhel

Create a script to add users

Create a script named /root/mkusers on the system1, this script can achieve to add local users for the system1, and user names of these users are all from a file which contains the usernames list, and meet the following requirements at the same time:

This script is required to provide a parameter; this parameter is the file which contains the usernames list

This script need provide the following message: Usage /root/mkusers if it does not provide a parameter, then exit and return the corresponding value

This script need provide the following message: Input file not found if it provides a name that does not exist, then exit and return the corresponding value

Create a user shell log into /bin/false

This script does not need to set password for users

You can get the usernames list from the following URL as a test: http://rhgls. domain11.example.com/materials/ userlist

A. explanation

Correct Answer: A

Question 5:

SIMULATION

RHCE Test Configuration Instructions

Information for the two systems you will use in test is the following:

system1.group3.example.com: is one of the main sever. system2.group3.example.com: mainly used as a client.

Password for both of the two systems is atenorth

System\’s IP is provided by DHCP, you can regard it as normal, or you can reset to Static IP in accordance with the following requirements:

system1.group3.example.com: 172.24.3.5

system2.group3.example.com: 172.24.3.10

The subnet mask is 255.255.255.0

specialized, all network services required to be configured can be accessed by systems of domain group3.

host.group3.example.com provides a centralized authentication service domain

GROUP3.EXAMPLE.COM, both system1 and system2 have already been pre-configured to be the client for this domain, this domain provides the following user account:

Firewall is enabled by default, you can turn it off when deemed appropriate, other settings about firewall may be in separate requirements.

able to enter the correct multi-user level after restart without manual assistance, it will be scored zero if the test using virtual machine system cannot be restarted or be properly restarted.

Corresponding distribution packages for the testing using operating system Red Hat Enterprise Linux version can be found in the following link:

http://server1.group3.example.com/rhel

blocked, this also does not score.

domain.

each exam question has some radio buttons to help you identify which questions you have already completed or not completed. Certainly, you do not need to care these buttons if you don\’t need them.

Database Query

Use database Contacts on the system1, and use the corresponding SQL to search and answer the following questions:

What\’s the person name whose password is solicitous?

How many people\’s names are John and live is Shanghai at the same time?

A. explanation

Correct Answer: A

Question 6:

SIMULATION

Via nfs service share the /common directory in your system, just doing ONE share in example.com domain.

A. explanation

Correct Answer: A

Question 7:

SIMULATION

Arrange a web service address is: http://serverX.example.com, X is the number of your exam machine. Deploy it in accordance with the following requirements: Download ftp //instructor.example.com/pub/rhce/server.html Cannot do any modification to file document server.html Rename file document server.html as index.html Copy the file document server.html to DocumentRoot

A. explanation

Correct Answer: A

Question 8:

SIMULATION

Create a Shell script /root/program:

The shell script will come back to “user” parameter when you are entering “kernel” parameter.

The shell script will come back to “kernel” when you are entering “user” parameter.

It will output the standard error when this script “usage:/root/program kernel|user” don\’t input any parameter or the parameter you inputted is entered as the requirements.

A. explanation

Correct Answer: A

Question 9:

SIMULATION

Prevent Mary from performing user configuration tasks in your system.

A. explanation

Correct Answer: A

Conclusions:

1. I find that it is common to add various service access limits in the exam RHCE. The exercises like: require one network segment can be accessed another network segments can not be accessed, the following are some conclusions for

various service:

tcp_wrappers:/etc/hosts.allow,/etc/hosts.deny

tcp_wrappers can filter the TCP\’s accessing service. TCP whether has the filtering function which depends on this service whether use the function library of tcp_wrappers, or this service whether has the xinetd process of starting function of

tcp_wrappers. tcp_wrappers\’s main configuration file is /etc/hosts.allow,/etc/ hosts.deny.

And the priority of the documents in hosts. allow is higher than hosts. deny. Visit will be passed if no match was found.

sshd,vsftpd can use the filtering service of tcp_wrappers.

Configuration example:

Notice:

The two configuration files\’ syntax can refer to hosts_access (5) and hosts_options(5) sshd_config There are four parameters in this configuration file: DenyUsers, AllowUsers, DenyGroups, AllowGroups, they are used to limit some users or

user groups to proceed Remote Login through the SSH. These parameters\’ priority level is DenyUsers->AllowUsers->DenyGroups->AllowGroups Configuration example:

httpd Service

Through the /etc/httpd/conf/httpd.conf in parameters, can add to control the url access. Just as:

Notice:

So pay attention, deny\’s and allow\’s priority level in order deny,allow is: the backer has the higher priority level. But here, allow\’s priority has a higher priority level.

nfs Service

nfs service directly control the visits through file /etc/exports, just as:

samba Service

Parameter hosts allow in /etc/samba/smb.conf which is used as Access Control, just as:

Paying attention to use Mount parameters: _netdev,defaults when you are mounting ISCSI disk.

Stop the NetworkManager /etc/init.d/NetworkManager stop chkconfig NetworkManager off

When you are deploying ifcfg-ethX, add parameters: PEERDNS=no

Empty the firewall in RHCSA RHCE:

Narrow lv steps:

Mount the using command – swap which is newly added in /etc/fstab

If Verification is not passed when you are installing software, can import public key: rpm import /etc/pki/rpm…/…release and so on. In yum.repo, you also can deploy gpgkey, for example, gpgkey=/etc/pki/rpm…/…release

When you are using “Find” command to search and keep these files, paying attention to use cp -a to copy files if you use user name and authority as your searching methods.

Question 10:

SIMULATION

Configure cron and don\’t allow the user tom to use.

A. explanation

Correct Answer: A

Question 11:

SIMULATION

Create the users named jeff, marion, harold.

A. explanation

Correct Answer: A

useradd jeff

useradd marion

useradd harold

Note:

useradd command is used to create the user.

All user\’s information stores in /etc/passwd and user\’s shadow password stores in /etc/shadow.

Question 12:

SIMULATION

Whoever creates the file on /data make automatically owner group should be the group owner of /data directory.

A. explanation

Correct Answer: A

When user creates the file/directory, user owner will be user itself and group owner will be the primary group of the user. There is one Special Permission SGID, when you set the SGID bit on directory. When users create the file/directory automatically owner group will be same as a parent.

chmod g s /data

Verify using: ls -ld /data You will get: drwxrws–

Question 13:

SIMULATION

There were two systems: system1, main system on which most of the configuration take place system2, some configuration here SMTP Configuration. Configure the SMTP mail service on serverX and desktopX which relay the mail only from local system through station.network0.example.com, all outgoing mail have their sender domain as example.com. Ensure that mail should not store locally. Verify the mail server is working by sending mail to a natasha user. Check the mail on both serverX and desktopX with the below URL http://station.network0.example.com/system1 http://station.network0.example.com/system2

A. explanation

Correct Answer: A

Question 14:

SIMULATION

There were two systems:

system1, main system on which most of the configuration take place

system2, some configuration here

Configure NFS mount.

Mount /nfsshare directory on desktopX under /public directory persistently at system boot time.

Mount /nfssecure/protected with krb5p secured share on desktopX beneath /secure/protected provided with keytab http://station.network0.example.com/pub/

keytabs/desktopX.keytab

The user harry is able to write files on /secure directory

A. explanation

Correct Answer: A

Verification from DesktopX:

Question 15:

SIMULATION

There were two systems: system1, main system on which most of the configuration take place system2, some configuration here

Configure SCSI storage. Create a new 1 GB target on your serverX.example.com The block device name should be data_block The server should export an iscsi disk called iqn.2014-10.com.example:serverX This target should only be allowed to desktop

A. explanation

Correct Answer: A

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EX300 Dumps Real Questions To Prepare For Red Hat Certified Engineer (RHCE) Exam

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