ExamView - cnet306_16w_t1.tst
Student ID: Name: Date: XXXXXXXXXX
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CNET306/16W Test1 (40pts)
True/False
Indicate whether the statement is true or false, 1 pt ea.
____ 1. When installing Linux over network, you have to use the Kickstart configuration file.
____ 2. You must configure your NICs manually because Linux kernel cannot detect them automatically.
____ 3. yum installs only the specified package and skips its dependencies.
____ 4. bootloader can pass initialisation parametres to the Unix/Linux kernel that is being loaded.
____ 5. messagebus service is required in order for system-config-firewall-tui to run.
____ 6. A reverse look-up zone database contains A and PTR records.
____ 7. xinetd, aka the Superserver, is used to start services upon request.
____ 8. nfs server is used to deliver the kernel and the initial ram disk image when booting a client over the
network.
____ 9. pxelinux daemon is installed when syslinux application package is installed.
____ 10. dhclient can be made to request a predefined host configuration from a dhcp daemon.
Multiple Choice
Identify the choice that best completes the statement or answers the question, 2pts ea.
____ 11. Which of the following is used to start/stop daemons ?
a. # chkconfig --start/--stop
c. # /etc/sysconfig/{start,stop} . # service --start/--stop d. # service start/stop
____ 12. Which of the following is used to describe the address XXXXXXXXXX ?
a. local address c. lookup address
. host address d. localhost
____ 13. Which of the following is used to resolve host names if a DNS server is not available ?
a. /etc/services c. /etc/sysconfig/network
. /etc/hosts d. /etc/sysconfig/hostname
____ 14. Which of the following is used to define which dns server to contact ?
a. /etc/hosts c. /etc/services
. /etc
esolv.conf d. /etc/dnsname.conf
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____ 15. Which of the following is used to transfer files between hosts securely ?
a. rcp c. tftp
. scp d. ftp
Matching 1pt ea.
Match the following concepts with the descriptions below :
a. Pre-eXecution Environment f. /etc
esolv.conf
. chkconfig g. BOOTPROTO=none
c. pxelinux.0 h. next-serve
d. dbus i. masquerading
e. dig j. insecure
____ 16. a tool in bind-utils used to test a nameserve
____ 17. boot loader used when booting over a network.
____ 18. SNAT with dynamic interface address enabled by firewall configurator.
____ 19. the parametre in ifcfg-ethX to assign static IP configuration.
____ 20. makes a service persistent across system boot.
____ 21. is used by resolver li
aries to tell which nameserver(s) to contact.
____ 22. a dependency of firewall configurator that provides messagebus service.
____ 23. option in /etc/dhcp/dhcpd.conf to tell a pxeclient which tftp server to contact.
____ 24. booting a client across a network
____ 25. an nfs-share parametre to accept connection requests on ports above 1024
Short Answer 2pts ea.
26. Identify the two files that must be delivered to a PXE client when the user selects to boot into CentOS in the
default menu.
1. Description :
2. Description :
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27. Identify the configuration files needed to implement a DNS server :
1. Purpose :
2. Purpose :
3. Purpose :
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Problem 6pts ea.
28. Given the screenshot, identify the problem and write the command(s) to co
ect the situation.
ID: A
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CNET306/16W Test1 (40pts)
Answer Section
TRUE/FALSE
1. ANS: F
Kickstart is only one method to configure a CentOS installation. Other distros use different methods.
PTS: 2
2. ANS: F
Linux kernel always detects NICs. Even the installation procedure does not configure a NIC automatically. It
asks you, instead, whether you want to configure it using a dhcp server, or manually during installation.
PTS: 2
3. ANS: F
yum installs a package with its dependencies together.
PTS: 2
4. ANS: T PTS: 2 REF: Ch 8
5. ANS: T PTS: 2
6. ANS: F
A reverse look-up zone database contains PTR records. A records are stored in zone database.
PTS: 2
7. ANS: T PTS: 2
8. ANS: F
tftp server is used to deliver them.
PTS: 2
9. ANS: F
There is no daemon that comes out from the syslinux package. There is no daemon called pxelinux.
PTS: 2
10. ANS: T
Use dhcp-client-identifier option in /etc/dhcp/dhclient-ethX.conf .
PTS: 2
MULTIPLE CHOICE
11. ANS: D PTS: 3
12. ANS: D PTS: 3
13. ANS: B PTS: 3
14. ANS: B PTS: 3
15. ANS: B PTS: 3
ID: A
2
MATCHING
16. ANS: E PTS: 6
17. ANS: C PTS: 6
18. ANS: I PTS: 6
19. ANS: G PTS: 6
20. ANS: B PTS: 6
21. ANS: F PTS: 6
22. ANS: D PTS: 6
23. ANS: H PTS: 6
24. ANS: A PTS: 6
25. ANS: J PTS: 6
SHORT ANSWER
26. ANS:
1. vmlinuz, Linux kernel
2. initrd.img, Initial RAM disk.
PTS: 1
27. ANS:
1. /etc/named.conf
2. /va
named/maste
db.zone
3. /va
named/maste
db.arpa
PTS: 1
PROBLEM
28. ANS:
Problem : Name resolution problem because localhost is not listed in /etc
esolv.conf.
ip link list returns only eth1 and eth2. dhclient is configured on the non-existing NIC.
Solution :
# mv /etc/dhcp/dhclient-eth0.conf /etc/dhcp/dhclient-eth1.conf
# service network restart
PTS: 1