| Question 1 | Which of the following commands runs the DHCP client process in debug mode and provides the most verbose output? -
A. dhcpagent -f -
B. dhcpagent -d -
C. dhcpagent -d1 -
D. dhcpagent -d2 |
| A1: | Answer D is correct because the dhcpagent -d2 command provides the most verbose debug output. Answer A is incorrect because the -f option makes the process run in the foreground, rather than in the background as a daemon process. This, in turn , writes messages to the standard output rather than to syslog . Answer B is incorrect because the -d option requires a numeric value, either 1 or 2. Answer C is incorrect because the -d1 option provides less verbose output than -d2 . |
| Question 2 | Which boot command would you enter to initiate a JumpStart client using DHCP? |
| A2: | Answer C is correct because the boot command boot net:dhcp “ install initiates a JumpStart client that uses DHCP. Answer A is incorrect because boot net merely performs a network boot from a remote server, as carried out by diskless clients . Answer B is incorrect because boot net “ install is the command to use to initiate a JumpStart client without using DHCP. Answer D is incorrect because the syntax is wrong for the boot command. |
| Question 3 | What function does the SinstPTH symbol have when configuring a DHCP server to support JumpStart clients? -
A. It is the IP address of the JumpStart install server. -
B. It is the path to the installation image on the install server. -
C. It is the hostname of the JumpStart install server. -
D. It is the path to the JumpStart configuration file. |
| A3: | Answer B is correct because the SinstPTH symbol contains the path to the installation image on the install server. Answer A is incorrect because this refers to the SinstIP4 symbol. Answer C is incorrect because this refers to the SinstNM symbol. Answer D is incorrect because this refers to the SjumpsCF symbol. |
| Question 4 | When a DHCP client boots up, it sends a message to locate a DHCP server and request an IP address. What type of message is this? -
A. DHCPDISCOVER -
B. DHCPOFFER -
C. DHCPREQUEST -
D. DHCPACK |
| A4: | Answer A is correct because a DHCPDISCOVER message is sent by a DHCP client to locate a DHCP server and request an IP address. Answer B is incorrect because the DHCPOFFER message is sent by the DHCP server in response to a DHCPDISCOVER message. It includes the offer of an IP address for the client to lease. Answer C is incorrect because the DHCPREQUEST message is sent by the DHCP client to accept an offer made by a DHCP server. Answer D is incorrect because the DHCPACK message is sent by the DHCP server to the client to confirm the leasing of an IP address. |
| Question 5 | Which command identifies the platform class of a DHCP client? -
A. uname -r -
B. uname -p -
C. uname -i -
D. uname -s |
| A5: | Answer C is correct because uname -i displays a host's platform class. Answer A is incorrect because uname -r displays the operating system release level, for example 5.9 . Answer B is incorrect because uname -p displays a host's processor type, for example sparc . Answer D is incorrect because uname -s displays the name of the operating system, for example SunOS . |
| Question 6 | You have been running snoop to capture network packets to aid problem resolution with the DHCP server. The data was saved to the file /tmp/snoop.log . Which command reads from this file and displays verbose output on the screen? |
| A6: | Answer B is correct because snoop -v -i /tmp/snoop.log reads records saved to this file and displays them on the screen using the most verbose output. Answer A is incorrect because snoop -v simply displays verbose output on the screen; it does not read any data from a file. Answer C is incorrect because this command saves the data to the file /tmp/snoop.log . This command would have been used to create the file to be read back in. Answer D is incorrect because the snoop command with no arguments produces real-time summary output of network traffic; it does not read any data from a saved file. |
