Computer Networks

491. Modulation also reduces the size of antenna for higher frequencies with ____________ frequency

1. Lower
2. Greater
3. Middle
4. None of these

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492. Modulation is the technique used to translate

1. Information from source to destination
2. Low frequency to higher frequency
3. Source to higher frequency
4. Low frequency to destination

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493. Modulation is the technique used to translate low-frequency(base-band) signals like ____________ to a higher frequency

1. Audio
2. Music
3. Video
4. Data
5. All of these

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494. Modulation/ demodulation is a non linear process where two different sinusoids are

1. Addition
2. Subtraction
3. Multiplied
4. Division

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495. Monomode fibre optic systems routinely are capable of transmitting signal over distances in excess of

1. 250Km
2. 350Km
3. 225Km
4. 325Km

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496. Most dial-up access to Internet is accomplished by using ____________

1. HDLC
2. PPP
3. IP
4. IPX

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497. Most users rely on ____________ for the purpose of file transfers, electronic mail(e-mail) and remote login services

1. TCP/IP
2. SMTP
3. DHCP
4. NFS

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498. MS contains a SIM card in the form of a very ____________ inside the equipment

1. Large chip
2. Small chip
3. Both a & b
4. None of these

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499. MSC is connected to a ____________ at one end

1. Mobile station
2. Base station
3. Transmitter station
4. None of these

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500. MSC is connected to a ____________ at other end

1. MSCs
2. PSTN
3. ISDN
4. None of these

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