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Slide 1: RH202 - Redhat Certified Technician on Redhat Enterprise Linux 4 FREE RH202 Practice Exam Test Questions Made Available By Pass-Guaranteed.com RH202 Practice Exam Questions For The Latest RH202 Practice Exam Questions: Visit: RH202
Slide 2: Introduction: The RHCT certification exam consists of two parts conducted in a half-day session. The exam is performance-based, meaning that candidates must perform tasks on a live system, rather than answering multiple choices questions. The two parts of the RHCT exam are: • Section I: Troubleshooting and System Maintenance (1 hour) • Section II: Installation and Configuration (2 hours) In order to pass the Red Hat Certified Technician exam, you must meet all of the following requirements: • Successful completion of all troubleshooting problems in Section I (all troubleshooting problems are compulsory); • A score of 70 percent or higher on Section II, Installation and Configuration. Candidates will be emailed exam results within three business days following the exam. RHCT skills Troubleshooting and System Maintenance RHCTs should be able to: • boot systems into different run levels for troubleshooting and system maintenance • diagnose and correct mis-configured networking • diagnose and correct hostname resolution problems • configure the X Window System and a desktop environment • add new partitions, file systems, and swap to existing systems • use standard command-line tools to analyze problems and configure system Installation and Configuration RHCTs must be able to: • Perform network OS installation • Implement a custom partitioning scheme • configure printing • configure the scheduling of tasks using cron and at • attach system to a network directory service, such as NIS or LDAP • configure autofs • add and manage users, groups, and quotas • configure file system permissions for collaboration • install and update RPMs • properly update the kernel RPM • modify the system bootloader • implement software RAID at install-time and run-time • use /proc/sys and sysctl to modify and set kernel run-time parameters Lab Setup on RHCT Exam Remember the Key points of Lab Configuration: 1. Lab Configuration is on 192.168.0.0/24 for example.com domain and 192.168.1.0/24 forcracker.org domain. 2. DHCP Server is configured. 3. DNS Server is 192.168.0.254 For The Latest RH202 Practice Exam Questions: Visit: RH202
Slide 3: 4. One NIS Server is configured rhce.com and server is 192.168.0.254 Topic 1, Debug Section QUESTION: 1 Make this successfully resolve to server1.example.com where DNS Server is 192.168.0.254. Answer: vi /etc/resolv.conf Write : nameserver 192.168.0.254 Explanation: If you have multiple name server (DNS), you can append another line. First Request goes to the First name server if not found then goes to second name server. Then try to resolve the Server1.example.com by using host or dig command. Eg: host server1.example.com When we use the DNS client tool first it sends the request to the DNS server specified in /etc/resolv.conf as a name server. If that DNS is not found then it sends the request to the Root name Server. QUESTION: 2 Quota is implemented in /data but not working properly. Find out the Problem and implements the quota to user1 to have a soft limit 60 inodes (files) and hard limit of 70 inodes (files). Answer: You should implement the quota on any directory that should be mounted with usrquota option for user quota and grpquota for group quota. 1. vi /etc/fstab /dev/hda11 /data ext3 defaults,usrquota 0 0 2. Either Reboot the System or remount the partition. Mount -o remount /dev/hda11 /data 3. touch /data/aquota.user 4. quotacheck -ufm /data 5 5. quotaon -u /data 6. edquota -u user1 /data and Specified the Soft limit and hard limit on opened file. To verify eitherquota is working or not: i. Login as user1 ii. Create the 61 files and see the warning of soft limit. iii use the quota command. QUESTION: 3 One Logical Volume named lv1 is created under vg0. The Initial Size of that Logical Volume is 100MB. Now you require the size of 500MB. Successfully make the size of that Logical Volume 500M without losing any data. As well as size should be increased online. For The Latest RH202 Practice Exam Questions: Visit: RH202
Slide 4: Answer and Explanation: In RHEL 4 LVM (Logical Volume Manager) is Version 2. The new feature added is online extend. In previous version you should un-mount the device. 1. Verify the size of Logical Volume: lvdisplay /dev/vg0/lv1 2. Verify the Size on mounted directory: df -h or df -h mounted directory name 3. Use : lvextend -L+400M /dev/vg0/lv1 4. ext2online -d /dev/vg0/lv1 to bring extended size online. 5. Again Verify using lvdisplay and df -h command. Explain: The Feature of LVM is to dynamically resize the partition. If you resize data will not be lost. LVM Concepts Multiple Physical Disks belongs to physical group. Using multiple disks belonging to physical group we can create on Volume group. Under that Volume Group we can create multiple Logical Volumes and only these Logical Volumes we can use. As well as we can increase and decrease the size of Logical Volume by using lvextend, lvresize. QUESTION: 4 Create one partition having the size of 100MB and mount it on /data. Answer and Explanation: 1. Use fdisk /dev/hda To create new partition. 2. Type n For New partitions 3. It will ask for Logical or Primary Partitions. Press l for logical. 4. It will ask for the Starting Cylinder: Use the Default by pressing Enter Key. 5. Type the Size: +100M You can Specify either Last cylinder of Size here. 6. Press P to verify the partitions lists and remember the partitions name. 7. Press w to write on partitions table. 8. Either Reboot or use partprobe command. 9. Use mkfs -t ext3 /dev/hda? Or mke2fs -j /dev/hda? To create ext3 filesystem. 10. vi /etc/fstab Write: /dev/hda? /data ext3 defaults 0 0 11. Verify by mounting on current Sessions also: mount /dev/hda? /data QUESTION: 5 You are the new System Administrator and from now on you are going to handle the system and your main task is Network Monitoring, Backup and Restore. But you don't know the root password. Change the root password to Red Hat and login in default Run level. Answer and Explanation: When you Boot the System, it starts on default Runlevel specified in /etc/inittab: Id:?:initdefault: When the System Successfully boots, it will ask for username and password. But you don't know the root's password. 1. Restart the System. For The Latest RH202 Practice Exam Questions: Visit: RH202
Slide 5: 2. You will get the boot loader GRUB screen. 3. Press a and type 1 or s for single mode ro root=LABEL=/ rhgb queit 1 4. System will boot on Single User mode. 5. Use passwd command to change. 6. Set redhat password. 7. Press ctrl+d QUESTION: 6 There are more than 400 Computers in your Office. You are appointed as a System Administrator. But you don't have a Router. So, you are going to use your One Linux Server as a Router. How will you enable IP packets forward? Answer and Explanation: 1. /proc is the virtual filesystem, we use /proc to modify the kernel value at running time. So For Current Session: echo "1" >/proc/sys/net/ipv4/ip_forward 2. /etc/sysctl.conf when System Reboot on next time, /etc/rc.d/rc.sysinit scripts reads the file /etc/sysctl.conf. So if you want to permanently set the IP forwarding enable, You should set: net.ipv4.ip_forward=1 Here 0 means disable, 1 means enable. QUESTION: 7 You Completely Install the Red Hat Enterprise Linux ES 4 on your System. While start the system, it's giving error to load X window System. How will you fix that problem and make it boot successfully to run X Window System. Answer and Explanation: While Problems occurred on booting System on Run level 5 (X Window). 1. /tmp is full or not 2. Quota is already reached 3. Video card or resolution or monitor is mis-configured. 4. xfs service is running or not. Do These: 1. df -h /tmp /tmp is full remove the unnecessary file 2. quota username if quota is already reached remove unnecessary file from home directory. 3. Boot the System in runlevel 3. you can pass the Kernel Argument from boot loader. 4. Use command: system-config-display It will display a dialog to configure the monitor, Video card, resolution etc. 5. Set the Default Runlevel 5 in /etc/inittab id:5:initdefault: 6. Reboot the System you will get the GUI login Screen. Note: at exam neither X window nor GNOME are installed at debug, you just have to do: /etc/inittab id:5:initdefault: and use the system-config-display Reboot the system For The Latest RH202 Practice Exam Questions: Visit: RH202
Slide 6: QUESTION: 8 There are two different networks, 192.168.0.0/24 and 192.168.1.0/24. Your System is in 192.168.0.0/24 Network. One RHEL 4 Installed System is going to use as a Router. All required configuration is already done on Linux Server, where 192.168.0.254 and 192.168.1.254 IP Address are assigned on that Server. How will make it successfully ping to 192.168.1.0/24 Network's Host? Answer: 1. vi /etc/sysconfig/network GATEWAY=192.168.0.254 OR vi /etc/sysconf/network-scripts/ifcfg-eth0 DEVICE=eth0 BOOTPROTO=static ONBOOT=yes IPADDR=192.168.0.? NETMASK=255.255.255.0 GATEWAY=192.168.0.254 2. service network restart Explanation: Packets always go to the default gateway if specified. First it searches the gateway assigned on interface name, then the network global configuration file. The System having IP Address 192.168.0.254, 192.168.1.254 is being used as a Router so we should set the gateway to that system. QUESTION: 9 Make a swap partition having 100MB. Make it automatically usable at system boot time. Answer and Explanation: 1. Use fdisk /dev/hda To create new partition. 2. Type n For New partition. 3. It will ask for Logical or Primary Partitions. Press l for logical. 4. It will ask for the Starting Cylinder: Use the Default by pressing Enter Key. 5. Type the Size: +100M You can Specify either Last cylinder of Size here. 6. Press P to verify the partitions lists and remember the partitions name. Default System ID is 83 that means Linux Native. 7. Type t to change the System ID of partition. 8. Type Partition Number. 9. Type 82 that means Linux Swap. 10. Press w to write on partitions table. 11. Either Reboot or use partprobe command. 12. mkswap /dev/hda? To create Swap File system on partition. 13. swapon /dev/hda? To enable the Swap space from partition. 14. free -m Verify Either Swap is enabled or not. 15. vi /etc/fstab /dev/hda? swap swap defaults 0 0 16. Reboot the System and verify that swap is automatically enabled or not. QUESTION: 10 For The Latest RH202 Practice Exam Questions: Visit: RH202
Slide 7: You are a System administrator. Using Log files makes it very easy to identify problems. Now there are 50 servers running as Mail, Web, Proxy, DNS etc. You want centralize the log from all servers into a LOG Server. How will you configure the LOG Server? Answer and Explanation: By default the system will accept the Log only from the Local host. To accept the Log from other host configure: 1. vi /etc/sysconfig/syslog SYSLOGD_OPTIONS="-m 0 -r" Where -m 0 disables 'MARK' messages. -r enables logging from remote machines -x disables DNS lookups on messages recieved with -r 2. service syslog restart QUESTION: 11 You are giving the debug RHCT exam. The examiner told you that the password of root is Red Hat. When you tried to login it displays the error message and redisplayed the login screen. You changed the root password, again unable to login as a root. How will you make it successfully Login as a root. Answer and Explanation: When root is unable to login into the system think: 1. Is password correct? 2. Is account expired? 3. Is terminal Blocked? Do these Steps: 1. Boot the System on Single user mode. 2. Change the password 3. Check the account expire date by using chage -l root command. If account is expired, set net expire date: chage -E "NEVER" root 4. Check the file /etc/securetty Which file blocked to root login from certain terminal. 5. If terminal is deleted or commented write new or uncomment. 6. Reboot the system and login as a root. QUESTION: 12 You are giving RHCT Exam and in your Exam paper there is a question written, make it successfully ping to 192.168.0.254. Answer and Explanation: In Network problem think to check: 1. IP Configuration: use ifconfig command either IP is assigned to interface or not? 2. Default Gateway is set or not? 3. Hostname is set or not? 4. Routing problem is there? 5. Device Driver Module is loaded or not? 6. Device is activated or not? Check In this way: 1. use ifconfig command and identify which IP is assigned or not. For The Latest RH202 Practice Exam Questions: Visit: RH202
Slide 8: 2. cat /etc/sysconfig/network What, What is written here. Actually here are these parameters. NETWORKING=yes or no GATEWAY=x.x.x.x HOSTNAME=? NISDOMAIN=? - Correct the file 3. Use netconfig command - Either Select Automatically from DHCP or assign the static IP 4. Use service network restart or start command. Now try to ping it will work. QUESTION: 13 Set the Hostname station?.example.com where ? is your Host IP Address. Answer and Explanation: 1. hostname station?.example.com This will set the host name only for current session. To set hostname permanently. 2. vi /etc/sysconfig/network HOSTNAME=station?.example.com 3. service network restart QUESTION: 14 The System you are using is for NFS (Network File Services). Some important data is shared from your system. Make this automatically start the nfs and portmap services at boot time. Answer and Explanation: We can control the services for the current session and for the next reboot time. For the current Session, we use service servicename start or restart or stop or status. For automatic start at next reboot time: 1. chkconfig servicename on or off eg: chkconfig nfs on chkconfig portmap on or ntsysv Select the nfs and portmap services. 2. Reboot the system and identify whether services are running or not. QUESTION: 15 There is one partition named /dev/hda14 mounted on /data. The owner of /data is root user and root group. Permission is full to owner user, read and execute to group member and no permission to others. Now you should give the full permission to user user1 without changing pervious permission. Answer and Explanation: We know that every files/directories are owned by a certain user and a certain group. Permissions are defined to owner user, owner group and other. -rwxr-x--- Full permission to owner user, read and write to owner group and no permission to others. According to the question "We should give the full permission to user user1 without changing the previous permission." We have ACL (Access Control List), in ext3 file system we can give certain permission to a certain user and a certain group without changing previous permission. But that partition should mount using acl option. Follow the steps: For The Latest RH202 Practice Exam Questions: Visit: RH202
Slide 9: 1. vi /etc/fstab /dev/hda14 /data ext3 defaults,acl 0 1 2. Either Reboot or use: mount -o remount /data 3. setfacl -m u:user1:rwx /data 4. Verify using: getfacl /data QUESTION: 16 One Logical Volume is created named as myvol under VO volume group and is mounted. The Initial Size of that Logical Volume is 124MB. Successfully make the size of the Logical Volume 245MB without losing any data. The size of the Logical Volume from 240MB to 255MB will be acceptable. Answer and Explanation: 1. First check the size of the Logical Volume: lvdisplay /dev/vo/myvol 2. Increase the Size of the Logical Volume: lvextend -L+121M /dev/vo/myvol 3. Make the size available online: ext2online /dev/vo/myvol 4. Verify the Size of the Logical Volume: lvdisplay /dev/vo/myvol 5. Verify that the size comes in online or not: df -h We can extend the size of the Logical Volume using the lvextend command. As well as to decrease the size of the Logical Volume, use the lvresize command. In LVM v2 we can extend the size of the Logical Volume without unmounting as well as we can bring the size of the Logical Volume online using ext2online command. QUESTION: 17 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 Addresses are assigned on the Server. Verify your network settings by pinging 192.168.1.0/24 Network's Host. Answer and Explanation: At exam time read the Lab Scenario carefully. Actually there are two different networks one is 192.168.0.0/24 where your system resides know as example.com domain and another is 192.168.1.0/24 known as cracker.org domain. One server named sever1.example.com having 192.168.0.254 and 192.168.1.254 is running in your exam. If you make a gateway to that server, you can ping because IP forwarding is enabled on that server. 1. vi /etc/sysconfing/network NETWORKING=yes HOSTNAME=station?.example.com GATEWAY=192.168.0.254 2. service network restart Or 1. 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 For The Latest RH202 Practice Exam Questions: Visit: RH202
Slide 10: 2. ifdown eth0 3. ifup eth0 Note: If gateway is specified in both files, the default gateway takes from the interface specific file. QUESTION: 18 neo user tried: dd if=/dev/zero of=/home/neo/somefile bs=1024 count=70 files created successfully. Again neo tried to create file having 70K using following command: dd if=/dev/zero of=/home/neo/somefile bs=1024 count=70 But he is unable to create the file. Make the user create the file less than 70K. Answer and Explanation: Actually the question is giving a scenario to you to implement quota to neo user. You should apply the quota to neo user on /home so that neo user shouldn't occupy space more than 70K. 1. vi /etc/fstab LABEL=/home /home ext3 defaults,usrquota 0 0 To enable the quota on filesystem you should mount the filesystem with usrquota for user quota and grpquota for group quota. 2. touch /home/aquota.user Creating blank quota database file. 3. mount -o remount /home Remounting the /home with updated mount options. You can verify that /home is mounted with usrquota options or not using mount command. 4. quotacheck -u /home Initialization the quota on /home 5. edquota -u neo /home Quota Policy editor Note: Disk quotas for user neo (uid 500): Filesystem blocks soft hard inodes soft hard /dev/mapper/vo-myvol 2 30 70 1 0 0 Can you set the hard limit 70 and soft limit as you think like 30. QUESTION: 19 Your system is giving error to load X window System. Make it successfully boot your system in runlevel5. Answer and Explanation: While you load the X Window System, you will get the problem. Problem may caused by different error. 1. Check the /tmp is full ? 2. Check your quota, hard limit is already crossed ? 3. Check xfs service is running ? 4. Configure the Video card, Resolution, monitor type using: system-configdisplay (Most Probably in RedHat exam) 5. Edit the /etc/inittab to set default runlevel 5. id:5:initdefault: QUESTION: 20 For The Latest RH202 Practice Exam Questions: Visit: RH202
Slide 11: Your System is configured in 192.168.0.0/24 Network and your Domain nameserver is 192.168.0.254. Make it successfully resolve to server1.example.com. Answer and Explanation: The nameserver is specified in question, 1. vi /etc/resolv.conf nameserver 192.168.0.254 2. host server1.example.com QUESTION: 21 One Package named zsh is dump on ftp://server1.example.com under /pub/updates directory and your FTP server is 192.168.0.254. Install the package zsh. Answer and Explanation: 1. rpm -ivh ftp://server1/example.com/pub/updates/zsh-* or 1. Login to ftp server : ftp ftp://server1.example.com using anonymous user. 2. Change the directory: cd pub and cd updates 3. Download the package: mget zsh-* 4. Quit from the ftp prompt : bye 5. Install the package 6. rpm -ivh zsh-* We can directly install the package from the ftp server or by downloading. 7. Verify Either package installed or not : rpm -q zsh QUESTION: 22 Some users home directory is shared from your system. Using showmount -e localhost command, the shared directory is not shown. Make it access the shared users home directory. Answer and Explanation: 1. Verify the File whether Shared or not ? : cat /etc/exports 2. Start the nfs service: service nfs start 3. Start the portmap service: service portmap start 4. Make it automatically start the nfs service on next reboot: chkconfig nfs on 5. Make it automatically start the portmap service on next reboot: chkconfig portmap on 6. Verify Either sharing or not: showmount -e localhost You will see that some shared directory will display QUESTION: 23 Add a new logical partition having size 100MB and create the /data which will be the mount point for the new partition. Answer and Explanation: 1. Use fdisk /dev/hda To create new partition. 2. Type n For New partitions 3. It will ask for Logical or Primary Partitions. Press l for logical. 4. It will ask for the Starting Cylinder: Use the Default by pressing Enter Key. 5. Type the Size: +100M You can Specify either Last cylinder of Size here. For The Latest RH202 Practice Exam Questions: Visit: RH202
Slide 12: 6. Press P to verify the partitions lists and remember the partitions name. 7. Press w to write on partitions table. 8. Either Reboot or use partprobe command. 9. Use mkfs -t ext3 /dev/hda? 10. Or 11. mke2fs -j /dev/hda? To create ext3 filesystem. 12. vi /etc/fstab 13. Write: 14. /dev/hda? /data ext3 defaults 0 0 11. Verify by mounting on current Sessions also: 15. mount /dev/hda? /data QUESTION: 24 There is a server having 172.24.254.254 and 172.25.254.254. Your System lies on 172.24.0.0/16. Make it successfully ping to 172.25.254.254 by Assigning following IP: 172.24.0.x Where x is your station number. Answer and Explanation: 1. Use netconfig command 2. Enter the IP Address as given station number by your examiner: example: 172.24.0.1 3. Enter Subnet Mask 4. Enter Default Gateway and primary name server 5. press on ok 6. ifdown eth0 7. ifup eth0 8. verify using ifconfig Lab server is playing the role of a router, IP forwarding is enabled. Just set the Correct IP and gateway, you can ping to 172.25.254.254. QUESTION: 25 Successfully resolve to server1.example.com where your DNS server is 172.24.254.254 Answer and Explanation: 1. vi /etc/resolv.conf nameserver 172.24.254.254 2. host server1.example.com On every client, DNS server is specified in /etc/resolv.conf. When you request by name it tries to resolve from DNS server . QUESTION: 26 Your System is going use as a router for 172.24.0.0/16 and 172.25.0.0/16. Enable the IP Forwarding. Answer and Explanation: i. echo "1" >/proc/sys/net/ipv4/ip_forward ii. vi /etc/sysctl.conf net.ipv4.ip_forward=1 /proc is the virtual filesystem, containing the information about the running kernel. To change the parameter of the running kernel in running state you should modify the in /proc. From Next For The Latest RH202 Practice Exam Questions: Visit: RH202
Slide 13: reboot the system, kernel will take the value from /etc/sysctl.conf. If net.ipv4.ip_forward is 0, ip forwarding is disabled, if 1 then IP Forwarding is enabled. For The Complete Exam RH202 in PDF Format and Testing Engine Format with self assessment and score reporting features! Go To: http://www.Pass-Guaranteed.com/RH202.htm http://www.Pass-Guaranteed.com Pass-Guaranteed.com offers leading edge practice exam questions for vendors such as: Cisco, Microsoft, Oracle, CompTIA, Exin, VMware, Adobe, HP, IBM, Check Point, Citrix, HP, ISC, Juniper, Lotus, Nortel, Sun and many more other vendors. Pass-Guaranteed or Your Money Back! Click Here to speak to a Pass-Guaranteed.com Customer Service Representative regarding the RH202 Exam. For The Latest RH202 Practice Exam Questions: Visit: RH202
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