The mailserver is currently called fred, while the primary MX record points to mailhost.example.org. What must be done to direct example.org email towards fred?
A. Add an A record for mailhost to fred's IP address.
B. Add a CNAME record from mailhost to fred
C. Add another MX record pointing to fred's IP address.
D. Add a PTR record from mailhost to fred.
If the command arp -f is run, which file will be read by default?
A. /etc/hosts
B. /etc/ethers
C. /etc/arp.conf
D. /etc/networks
E. /var/cache/arp
What is the difference between zImage and bzImage targets when compiling a kernel?
A. zImage is compressed using gzip, bzImage is compressed using bzip2
B. zImage is for 2.4 series kernels, bzImage is for 2.6 series kernels
C. zImage is loaded into low memory, bzImage is loaded into high memory
D. zImage is limited to 64k, bzImage is not
Some users are unable to connect to specific local hosts by name, while accessing hosts in other zones works as expected. Given that the hosts are reachable by their IP addresses, which is the default log file that could provide hints about the problem?
A. /var/named/log
B. /var/lib/named/dev/log
C. /var/log/bind_errors
D. /var/log/bind/errors
E. /var/log/messages
After configuring a new 2.4 series kernel, all dependencies, such as included files, need to be created. How can this be achieved?
A. make dependencies
B. make clean
C. makemrproper
D. make dep
E. maketest
Considering the following kernel IP routing table now, which of the following commands must be remove the route to the network l0.l0.1.0/24? Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface
200.207.199.162 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
172.16.87.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.246.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
10.10.1.0 192.168.246.11 255.255.255.0 UG 0 0 0 eth1
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 200.207.199.162 0.0.0.0 UG 0 0 0 ppp0
A. route del
10.10.1.0
B. route del 10.10.1.0/24
C. route del -net 10.10.1.0/24
D. route del 10.10.1.0/24 gw
192.168.246.11
E. route del -net
10.10.1.0
During which stage of the boot process would this message be seen? ide_setup: hdc=ide-scsi
A. Daemon initialization and setup.
B. Boot loader start and hand off to kernel.
C. Hardware initialization and setup.
D. Kernel loading.
DNSSEC is used for?
A. Encrypted DNS queries between nameservers.
B. Cryptographic authentication of DNS zones.
C. Secondary DNS queries for local zones.
D. Defining a secure DNS section.
E. Querying a secure DNS section.
The following is an excerpt from the output of tcpdump -nli ethl 'udp': 13:03:17.277327 IP 192.168.123.5.1065 > 192.168.5.112.53: 43653+ A? lpi.org. (25) 13:03:17.598624 IP 192.168.5.112.53 > 192.168.123.5.1065: 43653 1/0/0 A 24.215.7.109 (4l) Which networkservice or protocol wasused?
A. FTP
B. HTTP
C. SSH
D. DNS
E. DHCP
What command must be used to create an ext3 file-system?
A. mkext3fs
B. mkjfs
C. mke3fs
D. mke2fs
E. mkext2fs
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