Re-tested today, and the score is 82%

1. The values of tape density designator:

    "l" stands for low;  "m' stands for medium, "h" for high, "c" for compressed, and "u" for ultra-compressed.

2. The ufsboot program is responsible for loading the two-part kernel genunix and unix.

    The bootblk is the primary boot program used to load the secondary boot program ufsboot. bootblk is loaded by the PROM from the boot secor of the boot device.

     installboot is a Solaris command used to install the bootblk on a disk partition.

3. In the vi editor, "Y" and "yy" can copy the contents of the current line into the buffer.

    "C" is used to change the characters from the cursor to the end of the current line.

     "^V" is invoked if the user needs to quote a non-printable (usually a control) character.

4. Light weight process is a virtual CPU or execution resource. LWPs are scheduled by the kernel to use available CPU resources based on their scheduling class and priority.

5. The fsck utility is run on unmounted fiesystems to check for corruption. It checks: blocks and sizes, pathnames, connectivity, reference counts, and cylinder groups.

6. Files with extensions of .PatchReport are patch informational documents for a particular patch release. such as: Solaris8.PatchReport.

7. Every user on a system must have a unique name that sets it apart from other accounts on the system. UIDs do not necessarily have to be nique (and can be created using the -o option of useradd).