Department of Computer Science and Technology
Uka Tarsadia University
060010102: Database Management Systems
Enrollment No.:
F.Y.M.SC.(IT) [Sem-1]
Div:____
Quiz-1 [Set-A]
Marks: 20
Date: __________
Duration: 45 Minutes
Question- 1: Answer the following questions in short.
[1X10 = 10 marks]
1. Which file structure is more efficient when we have more frequent search operation compared to insertion?
2. Which is the fastest memory directly accessible by the CPU? State any one characteristic of it.
3. Define: Database
4. List two types of file records structure.
5. What is tertiary storage?
6. Which type of information is stored in file header in variable length record structure technique?
7. Secondary storage, like the hard drive, isn't directly accessible to the CPU like primary storage. What is another
name for secondary storage?
8. Define: Heap file organization
9. List any four applications of DBMS.
10. List the hierarchy of physical storage media.
Question- 2: Do as directed:
(a) Fill in the blanks with appropriate word:
[0.5X6 = 03 Marks]
1. The storage structure which does not survive system crashes is __________.
2. ____________________search technique is used in file of unordered records.
3. ______________ refers to storing a number of records in one block on the disk.
4. Data can be written at a location only once, but location can be erased and written to again is the
characteristic of ____________ memory.
5. _________ time is the time taken for a hard disk controller to locate a specific sector.
6. _______________ is the fastest and costliest form of storage.
(b) Choose the correct answer from the given options.
[0.5X4 = 02 Marks]
1
What is the main purpose of secondary storage device?
a) To increase the speed of computer
c) To store data temporary
b) To improve the efficiency of computer
d) To store data permanently
2
Which computer memory is used for storing programs and data currently being processed by the CPU?
a) Mass memory
c) Internal memory
b) Non-volatile memory
d) PROM
3
Information retrieval is faster from _____.
a) Floppy disk
c) Hard disk
b) Magnetic tape
d) CACHE memory
4
What kind of computer memory is both static and nonvolatile?
a) RAM
c) ROM
c) CACHE
d) Hard Drive
(c) Select the correct pair for the given statement whether it is true or false.
[1X5 = 05 Marks]
1. a. Auxiliary storage devices are useful for transferring data from one computer to another.
b. Tertiary storage devices are useful for transferring data from one computer to another.
i) TT
ii) FF
iii) TF
iv) FT
2. a. Records are stored in sequential order according to the value of “Search Key”, such organization is called
ordered file.
b. Records are stored in sequential order according to the value of “Search Key”, such organization is called
sequential file.
i) TT
ii) FF
iii) TF
iv) FT
3. a. Linear search technique can also be possibly used to search records in file of ordered records.
b. Linear search technique is used in file of unordered records to search records in file.
i) TT
ii) FF
iii) TF
iv) FT
4. a. New records are placed at the end of the file; such organization is called sorted file organization.
b. New records are placed at the end of the file; such organization is called pile file organization.
i) TT
ii) FF
iii) TF
iv) FT
5. a. Different records in the file have a same size, the file is said to be made up of Fixed length records.
b. Different records in the file have a different size, the file is said to be made up of Variable length records.
i) TT
ii) FF
iii) TF
iv) FT
Department of Computer Science and Technology
Uka Tarsadia University
060010102: Database Management Systems
Enrollment No.:
F.Y.M.SC.(IT) [Sem-1]
Div:____
Quiz-1 [Set-B]
Marks: 20
Date: __________
Duration: 45 Minutes
Question- 1: Answer the following questions in short.
[1X10 = 10 marks]
1. Which file structure is more efficient when we have more frequent insertion operation rather than search
operation?
2. How seek time and latency time differs from each other?
3. Which storage structure does not survive system crashes?
4. Define: DBMS
5. List one advantage and one disadvantage of secondary storage memory.
6. A computer's cache will hold data that is used most often to make it faster to access. What is major disadvantage
that limits the memory size in computer?
7. How data and information differs in terms of decision making process?
8. Which types of information are stored in system catalog?
9. Define: Sequential file organization
10. Which of the following memory is fast and why?
(a) RAM
(b) Flash
Question- 2: Do as directed:
(a) Fill in the blanks with appropriate word.
[0.5X6 = 03 Marks]
1. Removable media are considered as _______________.
2. _____________ is a relevant sequence of fields.
3. New records are placed at the end of the file; such organization is called ___________________.
4. ______________records can be stored in more than one block.
5. A record insertion is easy in ______________ file organization.
6. A __________ is a sequence of records where each record is a collection of data values (or data items).
(b) Choose the correct answer from the given options.
[0.5X4 = 02 Marks]
1
Which of the following is not a primary storage device?
a) Magnetic tape
c) Optical disk
b) Magnetic disk
d) None of the above
2
Secondary storage, like the hard drive, isn't directly accessible to the CPU like primary storage. What is
another name for secondary storage?
a) Auxiliary storage
c) Virtual storage
b) Main memory
d) Internal storage
3
The storage structure which do not survive system crashes are ______
a) Volatile storage
c) Stable storage
b) Non-volatile storage
d) Dynamic storage
4
In a relational model, tables are termed as _____ .
a) Tuples
c) Attributes
b) Relations
d) Rows
(c) State whether the statements are true or false.
1. a. Overflow blocks are used during insertion in sequential file organization.
b. Overflow blocks are used during insertion in unordered file organization.
i) TT
ii) FF
iii) TF
[1X5 = 05 Marks]
iv) FT
2. a. The difference between memory and storage is that the memory is permanent and storage is temporary.
b. The difference between memory and storage is that the memory is temporary and storage is permanent.
i) TT
ii) FF
iii) TF
iv) FT
3. a. Fastest storage media for example, cache and main memory are referred to as tertiary storage media.
b. Fastest storage media for example, RAM and ROM memory are referred to as secondary storage media.
i) TT
ii) FF
iii) TF
iv) FT
4. a. Different records in the file have a different size, the file is said to be made up of fixed length records.
b. Different records in the file have a different size, the file is said to be made up of variable length records.
i) TT
ii) FF
iii) TF
iv) FT
5. a. Buffer blocks are the blocks residing temporarily on the disk.
b. Buffer blocks are the blocks residing permanently on the main memory.
i) TT
ii) FF
iii) TF
iv) FT