McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Science in Computer Science (BSc CS) .
| 151. |
The 80386DX MPU is the ______ entry in the 80386 family |
| A. | first |
| B. | second |
| C. | third |
| D. | fourth |
| Answer» A. first | |
| 152. |
Which device is high-performance member of the 80386 family of MPUs? |
| A. | 80386SX |
| B. | 80386DX |
| C. | 80486SX |
| D. | 80486DX |
| Answer» B. 80386DX | |
| 153. |
The 80386DX is a full _____ processor |
| A. | 16 bit |
| B. | 8 bit |
| C. | 32 bit |
| D. | 64 bit |
| Answer» C. 32 bit | |
| 154. |
The 80386DX has both 32 bit internal registers ______ external data bus |
| A. | 16 bit |
| B. | 8 bit |
| C. | 32 bit |
| D. | 36 bit |
| Answer» C. 32 bit | |
| 155. |
The 80486 family was introduced in the year ______ |
| A. | 1987 |
| B. | 1988 |
| C. | 1989 |
| D. | 1990 |
| Answer» B. 1988 | |
| 156. |
________ maintains real modes protected-mode software compatibility with 80386 architecture |
| A. | 80486 |
| B. | 8085 |
| C. | 8086 |
| D. | 80486 DX |
| Answer» A. 80486 | |
| 157. |
80486DX was followed by ________ |
| A. | 80486SX |
| B. | 80386SX |
| C. | 80386DX |
| D. | 80486DX |
| Answer» A. 80486SX | |
| 158. |
_______ version did not have a 16-bit external architecture |
| A. | DX |
| B. | SX |
| C. | TX |
| D. | PX |
| Answer» B. SX | |
| 159. |
_______family supports both a math co processor and cache memory |
| A. | 8086 |
| B. | 8087 |
| C. | 80386 |
| D. | 80486 |
| Answer» C. 80386 | |
| 160. |
_______is a co-processor |
| A. | 8086 |
| B. | 8087 |
| C. | 80386 |
| D. | 80486 |
| Answer» B. 8087 | |
| 161. |
The number of hardware chips needed for multiple digit display can be minimized by using the technique called ______ |
| A. | interfacing |
| B. | multiplexing |
| C. | demultiplexing |
| D. | multiprocessing |
| Answer» B. multiplexing | |
| 162. |
In multiplexing, the data lines and output ports are time shared by ______ |
| A. | Matrix keyboard |
| B. | LCDs |
| C. | LEDs |
| D. | Memory |
| Answer» B. LCDs | |
| 163. |
I/o ports of programmable devices are limited in current capacity, therefore, additional transistors or ICs called ________ |
| A. | LEDs and LCSs |
| B. | interface and multiplexer |
| C. | segment and digit drivers |
| D. | segment drives |
| Answer» C. segment and digit drivers | |
| 164. |
The SN75491 and SN75492 has ________ and _________ Darlington pair transistors in a package respectively |
| A. | 3,8 |
| B. | 4,6 |
| C. | 2,4 |
| D. | 5,10 |
| Answer» B. 4,6 | |
| 165. |
____________ is a commonly used input device when more than 8 key are necessary |
| A. | Mouse |
| B. | Joystick |
| C. | Matrix Keyboard |
| D. | Both (a) and (b) |
| Answer» C. Matrix Keyboard | |
| 166. |
The _________ reduces the number of connections, thus the number of interfacing device required |
| A. | Mouse |
| B. | Joystick |
| C. | Monitor |
| D. | matrix keyboard |
| Answer» D. matrix keyboard | |
| 167. |
In scanned multiplexed displays _______ should sink seven or eight times that current |
| A. | Multiplex |
| B. | Demultiplexer |
| C. | Segment |
| D. | Cathode |
| Answer» D. Cathode | |
| 168. |
The ______ is called segment or digit dri |
| A. | Transistors |
| B. | Cathode |
| C. | Circuit |
| D. | Displays |
| Answer» A. Transistors | |
| 169. |
The ______ provide the capability of eight I/o ports in interfacing circuit |
| A. | Encoder |
| B. | Decoder |
| C. | Multiplexer |
| D. | Demultiplexe |
| Answer» B. Decoder | |
| 170. |
The output line of interfacing circuit is used in _____ |
| A. | LED scanned display |
| B. | LCD Scanned display |
| C. | Keyboard matrix |
| D. | Display |
| Answer» A. LED scanned display | |
| 171. |
These are _______ common cathode in scanned multiplexed displays |
| A. | 7 |
| B. | 6 |
| C. | 5 |
| D. | 4 |
| Answer» B. 6 | |
| 172. |
There are ______ segment LEDs in scanned multiplexed displays |
| A. | 5 |
| B. | 4 |
| C. | 6 |
| D. | 7 |
| Answer» D. 7 | |
| 173. |
An RS-232 interface is ____________ |
| A. | a parallel interface |
| B. | a serial interface |
| C. | printer interface |
| D. | a modem interface |
| Answer» B. a serial interface | |
| 174. |
Expansion for DTE is ______ |
| A. | data terminal equipment |
| B. | data trap equipment |
| C. | data text equipment |
| D. | data terminal extension |
| Answer» A. data terminal equipment | |
| 175. |
Expansion of DCE ________ |
| A. | data circuit terminating equipment |
| B. | data cycle terminating equipment |
| C. | data circuit terminating extension |
| D. | dynamic circuit terminating equipment |
| Answer» A. data circuit terminating equipment | |
| 176. |
RS-232 is used in _________ |
| A. | common serial port |
| B. | common signal port |
| C. | computer serial ports |
| D. | computer signal port |
| Answer» C. computer serial ports | |
| 177. |
Rs-232 was introduced in __________ |
| A. | 1942 |
| B. | . 1932 |
| C. | 1952 |
| D. | 1962 |
| Answer» D. 1962 | |
| 178. |
Compared with RS-232, USB is faster and uses___________ |
| A. | medium voltage |
| B. | higher voltage |
| C. | lower voltage |
| D. | None |
| Answer» C. lower voltage | |
| 179. |
In which year, 8086 was introduced? |
| A. | 1978 |
| B. | 1979 |
| C. | 1977 |
| D. | 1981 |
| Answer» A. 1978 | |
| 180. |
In which year, 8088 was announced? |
| A. | 1979 |
| B. | 1988 |
| C. | 1999 |
| D. | 2000 |
| Answer» A. 1979 | |
| 181. |
What does the acronym RFID stand for? |
| A. | remote field identification |
| B. | radio frequency identification |
| C. | radio field identification |
| D. | radio frequency imaging & detection |
| Answer» B. radio frequency identification | |
| 182. |
What is a smart card ? |
| A. | form of ATM card |
| B. | has more storage capacity than an ATM card |
| C. | an access card for a security system |
| D. | contains a microprocessor |
| Answer» C. an access card for a security system | |
| 183. |
Smart Card on a microprocessor is for _______ |
| A. | safety |
| B. | security |
| C. | protection |
| D. | authority |
| Answer» B. security | |
| 184. |
Smart card is used to provide ___________ |
| A. | access |
| B. | authority |
| C. | automation |
| D. | access control |
| Answer» A. access | |
| 185. |
Another name for smart card ________ |
| A. | ICC |
| B. | IFC |
| C. | IRC |
| D. | IC |
| Answer» A. ICC | |
| 186. |
Smart card is made up of ________ |
| A. | silicon |
| B. | iron |
| C. | plastic |
| D. | rubber |
| Answer» C. plastic | |
| 187. |
Smart card size is _________ |
| A. | 85.60 x 53.98 mm |
| B. | 85.70 x53.68 mm |
| C. | 86.50 x 52.67 mm |
| D. | 86.40 x51.77 mm |
| Answer» A. 85.60 x 53.98 mm | |
| 188. |
Smarts cards may have up to ______ kilobytes of RAM, ___ kilobytes of ROM, ___ kilobytes of programmable ROM, and a 16-bit microprocessor |
| A. | 8 & 346 & 256 |
| B. | 7 & 345 & 255 |
| C. | 6 & 344 & 254 |
| D. | 5 & 343 & 253 |
| Answer» A. 8 & 346 & 256 | |
| 189. |
The smart card uses a __________ interface |
| A. | serial |
| B. | parallel |
| C. | multple |
| D. | single |
| Answer» A. serial | |
| 190. |
The most common smart card application is ________. |
| A. | credit card |
| B. | atm card |
| C. | business card |
| D. | system card |
| Answer» A. credit card | |
| 191. |
Expansion for HMOS technology_______ |
| A. | high level mode oxygen semiconductor |
| B. | high level metal oxygen semiconductor |
| C. | high performance medium oxide semiconductor |
| D. | high performance metal oxide semiconductor |
| Answer» D. high performance metal oxide semiconductor | |
| 192. |
8086 and 8088 contains _______ transistors |
| A. | 29000 |
| B. | 24000 |
| C. | 34000 |
| D. | 54000 |
| Answer» A. 29000 | |
| 193. |
ALE stands for ___________ |
| A. | address latch enable |
| B. | address level enable |
| C. | address leak enable |
| D. | address leak extension |
| Answer» A. address latch enable | |
| 194. |
What is DEN? |
| A. | direct enable |
| B. | data entered |
| C. | data enable |
| D. | data encoding |
| Answer» B. data entered | |
| 195. |
Which pin is a programmable peripheral interface? |
| A. | 8255 |
| B. | 8258 |
| C. | 8254 |
| D. | 8259 |
| Answer» A. 8255 | |
| 196. |
The inside of smart card contains an ___________ |
| A. | 8085 microprocessor |
| B. | 8086 microprocessor |
| C. | 8088 microprocessor |
| D. | embedded microprocessor |
| Answer» D. embedded microprocessor | |
| 197. |
RFID technology is a __________ |
| A. | automatic identification technology |
| B. | computer tech |
| C. | information tech |
| D. | system tech |
| Answer» A. automatic identification technology | |
| 198. |
The information stored in RFID is ________ |
| A. | character |
| B. | number |
| C. | ascii |
| D. | pneumonic |
| Answer» C. ascii | |
| 199. |
In RFID, the productivity enhancement is _______ time |
| A. | five |
| B. | ten |
| C. | four |
| D. | nine |
| Answer» B. ten | |
| 200. |
RFID chip inside the tag is ________ |
| A. | read only |
| B. | write only |
| C. | read-write |
| D. | none |
| Answer» A. read only | |
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