Computer GK QUESTIONS AND ANSWERS 137 to 144
137. Which of the following extensions suggest that the file is a backup copy |
| Bak |
| Bas |
| Com |
| Txt |
138. How much power (roughly) a light emitting diode can couple into an optical fiber? |
| 100 microwatts |
| 440 microwatts |
| 100 picowatts |
| 10 miliwatts |
139. The two basic types of record access methods are |
| sequential and randon |
| direct and immediate |
| sequential and indexed |
| on-line and real-time |
140. Which command is used to change the file name? |
| Ren |
| Rename |
| Both of above |
| None of above |
141. Which of the following might be used by a company to satisfy its growing communications needs? |
| front end processor |
| multiplexer |
| controller |
| all of the above |
142. Which of the following signal is not standard RS-232-C signal? |
| VDR |
| RTS |
| CTS |
| DSR |
143. Which command is used to backup in DOS 6+ Version |
| BACKUP |
| MSBACKUP |
| MSBACKEDUP |
| All of the above |
144. Memory access in RISC architecture is limited to instructions |
| CALL and RET |
| PUSH and POP |
| STA and LDA |
| MOV and JMP |
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