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RedHat EX300 問題練習

Red Hat Certified Engineer – RHCE (v6+v7) 試験

最新更新時間: 2019/05/15,合計33問。

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Question No : 1
CORRECT TEXT
Given the kernel of a permanent kernel parameters: sysctl=1.
It can be shown on cmdline after restarting the system.
Kernel of /boot/grub/grub.conf should be a34dded finally, as:

正解:

Question No : 2
CORRECT TEXT
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.

正解:

Question No : 3
CORRECT TEXT
Configure a mail alias to your MTA, for example, send emails to harry but mary actually is receiving emails.

正解:


Notice:
This problem is a trap. The question no 31 requires that harry must be able to receive remote emails but the problems in the question no 32 requires mary to receive harry’s emails. So harry must be added when you are deploying aliases.

Question No : 4
CORRECT TEXT
Deploy your SMTP mail service and complete it by the following requirements:
-- Your mail service must be able to receive the local and remote mails
-- harry must be able to receive the remote mail
-- The mail which is delivered to mary should be put into the mail /var/spool/mail/mary

正解:

Question No : 5
CORRECT TEXT
Expand your web service including a virtual hosting, the address is : http://wwwX.example.com, X is the number of your exam machine.
However, requiring you do as the following:
-- Set up the DocumentRoot of this virtual hosting as /var/http/virtual
-- Download ftp : //instructor.example.com/pub/rhce/www.html
-- Rename www.html file document as index.html
-- Move this file document to this virtual hosting's DocumentRoot
-- Don't do any changes to this document
-- Making sure that harry users are able to create project in /var/http/virtual
Attention: Original web address is http://serverX.example.com must also can be browsed. The DNS of the Server instructor.example.com has already been analyzed as the domain wwwX.example.com.

正解:


Notice: The priority level order of deny, allow is deployed: The back is higher than in front of the priority. It means allow -> deny

Question No : 6
CORRECT TEXT
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 DocumentRoo

正解:

Question No : 7
CORRECT TEXT
In accordance with the following requirements, share /common directory through smb service.
-- your sub service must be in the SAMBA working-set
-- the shared name of common is common
-- the common share just can be shared by the customers in the example.com domain
-- the common must be available for browsing
-- mary must be able to login to the SMB share and for read operation, “password” is the secret code if it need to be verified.

正解:

Question No : 8
CORRECT TEXT
Deploying your exam system: link to the iscsi target in the instructor.example.com and distinguish it well, then format as ext3 file system. You must be able to mount the file system of the iscsi target to the /mnt/iscsi directory in your own system and make this file system can automatically mount (permanently mount) after system restart.

正解:


Note: This part also needs to be formatted and modify /etc/fstab mount -

Question No : 9
CORRECT TEXT
According to the following requirements, deploy your ftp login rule:
Users in example.com domain must be able to login to your ftp server as an anonymous user. But users outside the example.com domain are unable to login to your server

正解:

Question No : 10
CORRECT TEXT
Via nfs service share the /common directory in your system, just doing ONE share in example.com domain.

正解:

Question No : 11
CORRECT TEXT
In accordance with the following requirements to deploy ssh login service:
harry belongs to example.com which can remote login your systems. However, users of remote.test cannot use ssh login to your machine.

正解:


Notice:
tcp_wrappers has two configuration files and their priority level is /etc/hosts.allow->/etc/hosts.deny

Question No : 12
CORRECT TEXT
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
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.
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.
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?

正解:

Question No : 13
CORRECT TEXT
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
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.
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 a Database
Create a Maria DB database named Contacts on system1 and meet the following requirements at the same time:
The database should contain the contents of the database replication, URL for copying files is:
http://rhgls.domain11.example.com/materials/users.mdb
Database just can be accessed by localhost In addition to the root user, this database only can be searched by user Luigi, user’s password is redhat The password for root user is redhat, does not allow empty password

正解:

Question No : 14
iSCSI device automatically loads during the system start-up.

正解:

Question No : 15
com.example.domain11:system1 and meet the following requirements at the same time:
The Server Port is 3260 Use iSCSI-store as its back-end volume, its size is 3G This service just can be accessed by system2.domian11.example.com

正解:





systecmctl restart firewalld

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