Database Management > EXAM > Database Final Exam Questions and Answers Graded A (All)
Database Final Exam Questions and Answers Graded A
Document Content and Description Below
Database Final Exam Questions and Answers Graded A Q1: For a hard disk, the seek time is a- the time it takes to write a block to the disk b- the time it takes to move the read-write head to the tr... ack that contains the block to be accessed c- the time it takes to read a block from the disk d- The time it takes to move the block under the read-write head Q2: For a file block specification, the block size = 1024 bytes and non-data overhead = 150 bytes. if a record has a size = 90, then the blocking factor is (1024-150)/90 a- 10 records per block b- 11 records per block c- 9 records per block d- 8 records per block Q3- Assume the blocking factor is 15 records per block, the size of a record = 100 bytes and nondata overhead = 200 bytes. If the size of a track = 30,000 bytes, the number of records that can be stored in one track is (15*100)+200=1700 30000/1700=17.3=17 17*15 a- 285 blocks b- 300 blocks c- 255 blocks d- 270 blocks [Show More]
Last updated: 2 years ago
Preview 1 out of 16 pages
Buy this document to get the full access instantly
Instant Download Access after purchase
Buy NowInstant download
We Accept:
Reviews( 0 )
$12.00
Can't find what you want? Try our AI powered Search
Document information
Connected school, study & course
About the document
Uploaded On
Jul 01, 2022
Number of pages
16
Written in
Additional information
This document has been written for:
Uploaded
Jul 01, 2022
Downloads
0
Views
115
.png)
