Check the following:
☛ Is start-up time longer than usual?
☛ Is it slower with one particular application or slower overall?
☛ Are there any viruses, malware or spyware?
☛ Available Hard Disk space.
What is the nominal voltage required in subscriber loop connected to local exchange a) +48 volts b) -48 volts c) 230 volts d) 110 volts
What is the maximal decimal number that can be accommodated in a byte? a) 128 b) 256 c) 255 d) 512
Max number of satellite hops allowed in voice communication is a) only one b) more han one c) two hops d) four hops
Conditional results after execution of an instruction in a micro processor is stored in? a) register b) accumulator c) flag register d) flag register part of PSW(Program Status Word)
What action is taken when the processor under execution is interrupted by a non-maskable interrupt? a) Processor serves the interrupt request after completing the execution of the current instruction. b) Processor serves the interrupt request after completing the current task. c) Processor serves the interrupt request immediately. d) Processor serving the interrupt request depends upon the priority of the current task under execution.
Purpose of PC(Program Counter) in a Microprocessor is? a) To store address of TOS(Top Of Stack) b) To store address of next instruction to be executed. c) count the number of instructions. d) to store base address of the stack.
How many T1 facilities the company needs between its office and the PSTN if it has 47 digital telephones, each operating at 64kbps 3 low-speed video machines, each operating at 384kbps 1 interactive video system, requiring 1.536 mbps.
What is the need of CPG message in ISUP protocol?
Line of sight is? a) Straight Line b) Parabolic c) Tx & Rx should be visible to each other d) none of the above
Time taken for 1 satellite hop in voice communication is? a) 1/2 second b) 1 seconds c) 4 seconds d) 2 seconds
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