READ Free Dumps For LPI- 117-201
| Question ID 21504 | 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
24.215.7.109 (41)
Which network service or protocol was used?
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| Option A | FTP
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| Option B | HTTP
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| Option C | SSH
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| Option D | DNS
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| Option E | DHCP
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| Correct Answer | D |
Explanation Explanation: 192.168.5.112.53 shows that we connect to Port 53 and /etc/services specifies port 53 as DNS. # cat /etc/services Domain 53/tcp # name-domain server Domain 53/udp here is another example of tcpdump catching a DNS request and response: 11:17:44.585523 IP 10.1.112.106.48380 > 8.8.8.8.53: 7880+ A? www.google.at. (31) 11:17:44.621611 IP 8.8.8.8.53 > 10.1.112.106.48380: 7880 8/0/0 CNAME www.google.com., CNAME www.l.google.com., A 209.85.135.103, A 209.85.135.147, A 209.85.135.105, A 209.85.135.104, A 209.85.135.99, A 209.85.135.106 (175)
| Question ID 21505 | During which stage of the boot process would this message be seen?
ide_setup: hdc=ide-scsi
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| Option A | Daemon initialization and setup.
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| Option B | Boot loader start and hand off to kernel.
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| Option C | Hardware initializiation and setup.
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| Option D | Kernel loading.
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| Correct Answer | D |
Explanation Explanation: See http://www.learninglinuxkernel.com/Linux_Boot_Process.html In the Kernel-Loading phase it re-initializes parallel ports, serial ports and all the on-board controllers like USB, IDE, SCSI, Serial, parallel, timers, RTC etc. These startup drivers are also called BSP drivers or Board Support Drivers.