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这门考题的最新信息如下:
考试代号：RH302
认证名称： Red Hat Certified Engineer on Redhat Enterprise Linux 5 (Labs)
版本号：V8.02
考题数量：330道
更新日期：2010-12-23
1.CORRECT TEXT
Change the root Password to redtophat
Answer and Explanation:Boot the system in Single user modeUse the passwd command
2.CORRECT TEXT
Dig Server1.example.com, Resolve to successfully through DNS Where DNS server is
172.24.254.254
Answer and Explanation:
#vi /etc/resolv.conf
nameserver 172.24.254.254
# dig server1.example.com
#host server1.example.com
DNS is the Domain Name System, which maintains a database that can help your computer translate domain names such as www.redhat.com to IP addresses such as 216.148.218.197. As no individual DNS server is large enough to keep a database for the entire Internet, they can refer requests to other DNS servers.
DNS is based on the named daemon, which is built on the BIND (Berkeley Internet Name Domain) package developed through the Internet Software Consortium Users wants to access by name so DNS will interpret the name into ip address. You need to specify the
Address if DNS server in each and every client machine. In Redhat Enterprise Linux, you need to specify the DNS server into /etc/resolv.conf file.
After Specifying the DNS server address, you can verify using host, dig and nslookup commands.
3.CORRECT TEXT
Create the partition having 100MB size and mount it on /mnt/neo
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? Where ? is your partition number
10. Or
11. mke2fs -j /dev/hda? ¨¤ To create ext3 filesystem.
12. mkdir /mnt/neo
13. vi /etc/fstab
14. Write:
15. /dev/hda? /mnt/neo ext3 defaults 1 2
16. Verify by mounting on current Sessions also:
17. mount /dev/hda? /mnt/neo
4 CORRECT TEXT
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:
1. echo "1" >/proc/sys/net/ipv4/ip_forward
2. 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 running kernel you should modify on /proc. From Next reboot the system, kernel will take the value from /etc/sysctl.conf.
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