Related Questions

When two computers communicate with each other, they send information back and forth. If they are separated by a reasonable distance, they can send and receive the information through a direct cable connection which is called a null-modem connection. Presently what is the maximum distance in metres permitted in this null-modem connection?
A 80
B 100
C 30
D 150
E None of the above
Your modem does not respond when you try to dial out. You try another modem on another computer and get the same result. What is the most likely problem?
A defective modem
B defective computer
C software bug
D bad phone line
E virus
Establishing a Power of Attorney occurs when a legal document is created that gives one individual the authority to act for another. Which situation below is the best example of Establishing a Power of Attorney?
A Louise is selling her house and she hires a lawyer to review the contract.
B Simone's mother can no longer get to the bank to cash her checks and make deposits, so she has taken legal steps to enable Simone to do these things for her.
C Jack's father is elderly and Jack thinks he is no longer able to make decisions for himself.
D At her daughter's urging, Mrs.Lenox opens up a retirement account with the local bank.
A smart modem can dial, hang up and answer incoming calls automatically. Can you tell who provides the appropriate instruction to the modem for this purpose?
A Communications software
B Error detecting protocols
C Link access procedure (LAP)
D Telecommunications
E None of the above
MODEM শব্দটি তৈরি হয়েছে- i. Modulator এর Mo ii. Demodulator এর Dem iii. Demodulator এর Modem নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
Establishing a virtual connection is functionally equivalent to
A Connecting as virtual memory
B Physically connecting a DTE and DCE
C Placing a telephone call prior to a conversation
D Placing a modem prior to a conversation
E None of the above
Signals can be analog or digital and a computer that processes the both type of signals is known as
A Digital computer
B Hybrid computer
C Analog computer
D Mainframe computer
The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:
A modulation
B demodulation
C synchronizing
D synchronizing
E None of the above
The exchange rate is the ruling official rate of exchange of Taka for other currencies. It determines the value of Bangladeshi goods in relation to foreign foods. If the Taka is devalued in terms other currencies Bangladeshi exports (which are paid for in Taka ) become cheaper to foreigners and Bangladeshi imports become more expensive to holders of Taka. What conclusion can be drawn form the information above?
A There are certain disadvantages for the Bangladesh economy attached to devaluation
B The prospect of devaluation results in a speculative outflow of funds.
C The difference between imports and exports in called the Trade Gap.
D It is possible that inflation neutralized the beneficial effects of devaluation
The exchange rate is the ruling official rate of exchange of dollars for other currencies . It determines the value of American goods in relation to foreign goods. If the the dollar is devalued in terms of other currencies , American exports ( which are
A There are certain disadvantages for the United States economy attached to devaluation
B The prospect of devaluation results in a speculative outflow of funds
C By encouraging exports and discouraging imports, devaluation can improve the American balance of payments
D The difference between the exports and imports is called the trade gap

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