Name: Answers to the following questions are due in class at 1130 hours, mountai

Question

Name: Answers to the following questions are due in class at 1130 hours, mountain standard time on Wednesday, the 4th day of April, 2018 anno domini A file system maintains the following information for each file Name Size (in bytes) Owner ID Last access timestamp Group ID Creation timestamp An ordered list of physical allocation units Last modification timestamp Access permissions 1) If the file system differentiates between logical files and physical files, the information above must be partitioned. Mark each item above with an "L" or "P" to indicate its association with the logical or physical (respectively) identity of the file 2) What file system structure contains the information about the physical file? 3) What file system structure contains the information about the logical file? 4) Briefly describe the following terms with respect to cache a. Tag b. Set associativity c. Dirty bit 5) Assuming 32 bit address, 32 bit data, and 20 bit tag, where (and what) will the cache store when the CPU reads the value 05A7F321 from address F0289BC1: Cache address Tag 6) How many total bytes of memory would be necessary to build a 32k entry, 4-way set associative cache which uses 16 bit tags, stores 32 bit data values, monitors a 32 bit address bus, and needs 16 bits of status information?

Explanation / Answer

Solution:

1, 2, and 3 are done, please repost others.

1)

Name --------------L

Size (in bytes) -----------L

Owner ID ----------------L

Last Access Timestamp ------------------L

Group ID -----------------L

Creation Timestanp ------------------L

An Ordered list of physical allocation units --------------- P

Last modification Timestamp ---------------------L

Access Permissions -----------------------L

2)

The physical file system structure resides on the disk which has storage and maps logical to physical data, The file control block in the system consists of information about the file in Inode. The file can be stored physically as Bytes, Lines, Records. The file systems which are used to store physical files are FAT12, FAT16, FAT32, in which FAT number refers to the number of bits per table entry.

3)

Logical files are organized as byte streams which can have fixed or variable size of records. The logical file system allows same system call interface to be used for different types of file systems, The logical cluster number is stored in the logical file system which is same as the logical file system address.

I hope this helps if you find any problem. Please comment below. Don't forget to give a thumbs up if you liked it. :)

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.