Which of these tools can provide the most information about DNS queries?
What command must be used to create an ext3 file-system?
What needs to be done to enable 32 bit I/O transfer mode for (E)IDE disks, on a system running a
2.4 series Linux kernel?
A. The Linux kernel must be recompiled.
B. The sysctl utility must be used.
C. The hdparm utility must be used.
D. This feature isn’t supported in 2.4 series kernels.
E. This feature is enabled by default in 2.4 series kernels
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 eth1 ‘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
Which network service or protocol was used?
During which stage of the boot process would this message be seen?
A. Daemon initialization and setup.
B. Boot loader start and hand off to kernel.
C. Hardware initializiation and setup.
D. Kernel loading.
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. make mrproper
D. make dep
E. make test
Considering the following kernel IP routing table now, which of the following commands must be remove the route to the network 10.10.1.0/24?
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
126.96.36.199 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
0.0.0.0 188.8.131.52 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
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?
If the command arp -f is run, which file will be read by default?
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