MCQOPTIONS
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MCQOPTIONS
This section includes 239 Mcqs, each offering curated multiple-choice questions to sharpen your Operating System knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Which of the following are the cheapest memory devices in terms of Cost/Bit? |
| A. | Semiconductor memories |
| B. | Magnetic Disks |
| C. | Magnetic Tapes |
| D. | Compact Disks |
| Answer» E. | |
| 102. |
Type of disc which has storage capacity of 40 megabytes to several megabytes is classified as |
| A. | hard disc |
| B. | fixed head discs |
| C. | disc pack |
| D. | floppy discs |
| Answer» B. fixed head discs | |
| 103. |
DAT stands for |
| A. | Digital Audio Tape |
| B. | Devised Access Tape |
| C. | Digital Additional Tape |
| D. | Devised Active Tape |
| Answer» B. Devised Access Tape | |
| 104. |
Magnetic tape's type known as streamer tape is defined to be of size |
| A. | 1/2 inch |
| B. | 1/3 inch |
| C. | 1/4 inch |
| D. | 1/5 inch |
| Answer» D. 1/5 inch | |
| 105. |
Magnetic tape's type known as cartridge is said to be of size |
| A. | 1 inch |
| B. | 1/2 inch |
| C. | 2 inches |
| D. | 1/4 inch |
| Answer» C. 2 inches | |
| 106. |
Information stored in CD-ROM is said to be |
| A. | Pre-recorded |
| B. | User manufactured |
| C. | Cannot be altered |
| D. | Both a and c |
| Answer» E. | |
| 107. |
Disk drives used for distribution of software to customers by software vendors is said to be |
| A. | Flash drive |
| B. | Magnetic drive |
| C. | CD-ROM |
| D. | WORM drive |
| Answer» D. WORM drive | |
| 108. |
Type of magnetic tape named digital audio type is defined to be of size |
| A. | 2-mm |
| B. | 4-mm |
| C. | 6-mm |
| D. | 8-mm |
| Answer» C. 6-mm | |
| 109. |
Most common type of storage device is |
| A. | steel |
| B. | magnetic |
| C. | optical |
| D. | flash |
| Answer» C. optical | |
| 110. |
Which of the following is a way to access secondary memory? |
| A. | Density method |
| B. | Random access memory |
| C. | Action method |
| D. | Transfer method |
| Answer» C. Action method | |
| 111. |
Magnetic disks can be used by multiple users simultaneously because of |
| A. | Sequential access property |
| B. | Direct access property |
| C. | Indirect access property |
| D. | Random access property |
| Answer» E. | |
| 112. |
Number of spiral track(s) in an optical disk is said to be |
| A. | Just one |
| B. | Two |
| C. | Multiple |
| D. | Infinite |
| Answer» B. Two | |
| 113. |
Storage device that uses rigid, permanently installed magnetic disk to store data is |
| A. | floppy |
| B. | permanent disk |
| C. | optical disk |
| D. | hard disk |
| Answer» E. | |
| 114. |
Data can be recorded on a disk only when head is positioned over |
| A. | Desired track |
| B. | Desired cell |
| C. | Desired block |
| D. | Desired sector |
| Answer» E. | |
| 115. |
Tape storage area can be utilized efficiently in streamers because of |
| A. | NO start and stop operations |
| B. | NO inter-block gaps |
| C. | Inter record gaps |
| D. | Quarter inch cartridge |
| Answer» C. Inter record gaps | |
| 116. |
Cost per bit of secondary storage of computer is |
| A. | High |
| B. | Low |
| C. | Unknown |
| D. | Undefinable |
| Answer» C. Unknown | |
| 117. |
Data access time is depends on |
| A. | Seek time |
| B. | Rotational delay |
| C. | Operating frequency |
| D. | All of the above |
| Answer» E. | |
| 118. |
Secondary storage devices can be classified into |
| A. | Two types |
| B. | Three types |
| C. | Four types |
| D. | Five types |
| Answer» B. Three types | |
| 119. |
Magnetic disks of direct access devices includes hard disk that can be of |
| A. | Two types |
| B. | Three types |
| C. | Four types |
| D. | Five types |
| Answer» C. Four types | |
| 120. |
The primary advantage of key-to-tape data entry system is |
| A. | Keying errors can be detected as they occur |
| B. | The tape is reusable |
| C. | A large percentage of editing can be performed at the time of data entry |
| D. | Key verification is easily performed |
| Answer» C. A large percentage of editing can be performed at the time of data entry | |
| 121. |
An environment suitable for magnetic tapes needs to be controlled with |
| A. | Proper temperature |
| B. | Humidity levels |
| C. | Dust-free |
| D. | All of the Above |
| Answer» E. | |
| 122. |
Mostly which of the following device is used to carry user files? |
| A. | Hard Disk |
| B. | CDROM |
| C. | Floppy Disk / Pen Drive |
| D. | RAM |
| Answer» D. RAM | |
| 123. |
Floppy disks which are made from flexible plastic material are also called? |
| A. | Diskettes |
| B. | Templates |
| C. | Hard disks |
| D. | High-density disks |
| Answer» B. Templates | |
| 124. |
What is the number of read-write heads in the drive for a 9-trac magnetic tape? |
| A. | 27 |
| B. | 9 |
| C. | 16 |
| D. | 18 |
| Answer» C. 16 | |
| 125. |
Which of the following storage devices can store maximum amount of data? |
| A. | Floppy Disk |
| B. | Magneto Optic Disk |
| C. | Hard Disk |
| D. | Compact Disk |
| Answer» D. Compact Disk | |
| 126. |
Transfer rate is negligible as compared to |
| A. | Seek time |
| B. | Latency |
| C. | Access time |
| D. | Both a and b |
| Answer» E. | |
| 127. |
Seek time is |
| A. | Time to position the head over proper cylinder |
| B. | Time to position the head over proper track |
| C. | Time to position the head over proper sector |
| D. | None of the above |
| Answer» C. Time to position the head over proper sector | |
| 128. |
Binary coding scheme used in recording data in magnetic disk is known to be |
| A. | BCD |
| B. | EBCDIC |
| C. | ASCII |
| D. | ASCEII |
| Answer» C. ASCII | |
| 129. |
Data can be read and written more efficiently in streamer tapes because of |
| A. | Quarter inch cartridge |
| B. | NO start and stop operations |
| C. | Inter block gaps |
| D. | Inter record gaps |
| Answer» C. Inter block gaps | |
| 130. |
Floppy disks typically in diameter |
| A. | 3" |
| B. | 5.25" |
| C. | 8" |
| D. | All of the above |
| Answer» E. | |
| 131. |
The interval between the instant a computer makes a request for transfer of data from a disk system to the primary storage and the instance this operation is completed is called _________ |
| A. | Disk arrival time |
| B. | Disk access time |
| C. | Drive utilization time |
| D. | Disk utilization time |
| Answer» C. Drive utilization time | |
| 132. |
'laser discs' and 'compact discs' are classified as |
| A. | fixed head discs |
| B. | optical discs |
| C. | bubble discs |
| D. | blocked discs |
| Answer» C. bubble discs | |
| 133. |
Group of track place vertically on to one another is classified as |
| A. | floppy pack |
| B. | magnetic pack |
| C. | disc pack |
| D. | storage pack |
| Answer» D. storage pack | |
| 134. |
All of the following is a secondary storage, except |
| A. | magnetic disks |
| B. | magnetic tapes |
| C. | RAM |
| D. | CDs |
| Answer» D. CDs | |
| 135. |
Which of the following is the largest manufacturer of Hard Disk Drives? |
| A. | Seagate |
| B. | 3M |
| C. | IBM |
| D. | Microsoft |
| Answer» B. 3M | |
| 136. |
Data bits of streamer tape are sorted in a row one after another in |
| A. | Cells |
| B. | Record |
| C. | Programs |
| D. | Tracks |
| Answer» E. | |
| 137. |
Device used for transferring programs and data between computers that are not linked is known to be |
| A. | Disk drive |
| B. | Magnetic tapes |
| C. | Magnetic drives |
| D. | Disk Packs |
| Answer» C. Magnetic drives | |
| 138. |
In hard discs, collection of seek time, transfer time and rotational delay is equal to |
| A. | processing time |
| B. | storage time |
| C. | access time |
| D. | delay time |
| Answer» D. delay time | |
| 139. |
Which technology is used in Compact disks? |
| A. | Electro Magnetic |
| B. | Laser |
| C. | Mechanical |
| D. | Electrical |
| Answer» C. Mechanical | |
| 140. |
Which of the following is not a primary storage device? |
| A. | Magnetic tape |
| B. | Optical disk |
| C. | Magnetic disk |
| D. | None of the above |
| Answer» E. | |
| 141. |
Magnetic disks are less vulnerable to |
| A. | Disk integration |
| B. | Data transfer |
| C. | Data corruption |
| D. | Data evaluation |
| Answer» D. Data evaluation | |
| 142. |
Data is written and read to disk, at a rate known to be |
| A. | Transfer rate |
| B. | Access rate |
| C. | Tracking rate |
| D. | Heading rate |
| Answer» B. Access rate | |
| 143. |
Which device is used to backup the data? |
| A. | Floppy Disk |
| B. | Tape |
| C. | Network Drive |
| D. | All of the above |
| Answer» E. | |
| 144. |
One terabyte is equals to |
| A. | 1024 megabytes |
| B. | 1024 bytes |
| C. | 1024 kilobytes |
| D. | 1024 gigabytes |
| Answer» E. | |
| 145. |
The capacity of 3.5 inch floppy disk is |
| A. | 1.40 GB |
| B. | 1.44 MB |
| C. | 1.40 MB |
| D. | 1.44 GB |
| Answer» C. 1.40 MB | |
| 146. |
Bernoulli disks are a type of magnetic floppy disks . |
| A. | True |
| B. | False |
| C. | May be |
| D. | Can't say |
| Answer» C. May be | |
| 147. |
As compared to the secondary memory, the primary memory of a computer is |
| A. | Slow |
| B. | Fast |
| C. | Large |
| D. | Cheap |
| Answer» C. Large | |
| 148. |
For applications based on random data processing, best suitable device to use is known to be |
| A. | Magnetic tapes |
| B. | Magnetic disks |
| C. | Flash drives |
| D. | Zip drives |
| Answer» C. Flash drives | |
| 149. |
Interval between a computer making a request for transfer of data from disk to primary storage, till its completion is known to be |
| A. | Disk throughput interval |
| B. | Disk transfer time |
| C. | Disk access time |
| D. | Disk seek time |
| Answer» D. Disk seek time | |
| 150. |
Before a disk drive can access any sector record, a computer program has to provide the record's disk address. What information does this address specify? |
| A. | Sector number |
| B. | Surface number |
| C. | Track number |
| D. | All of the above |
| Answer» E. | |