Question
g. Suppose you carry 8 DVD disks (each disk stores 41094109 bytes) from your home to the university, and assume your travel time is 1.3
g. Suppose you carry 8 DVD disks (each disk stores 41094109 bytes) from your home to the university, and assume your travel time is 1.3 hours, what is the effective data rate in the unit of Mbps?
h. Which organizations define the standard for Ethernet cable (UTP category 6)?
1. IEC
2. IEEE
3. IETF
4.TIA
i. Suppose you send a package with 81 Blu-ray disks (each disk stores 100109100109 bytes) from Puerto Rico to New York in 2.4 days, what is the effective data rate in the unit of Mbps?
j. What is the speed of EM wave in an Ethernet Cable?
1. 1.5108m/s1.510^8 m/s
2. 2108m/s210^8 m/s
3. 2.5108m/s2.510^8 m/s
4. 3108m/s310^8 m/s
k. Which organizations define the standard for Ethernet cable (UTP category 5e)?
1. IEC
2. TIA
3. IETF
4. IEEE
l. What is the speed of light in an optical fiber?
1. 210^8 m/s
2. 1.510^8 m/s
3. 310^8 m/s
4. 2.510^8 m/s
m. For a VHF band signal, which of the following characteristics are correct?
1. Propagating along the surface of the earth
2. Can be reflected between ground and ionosphere
3. Could be a signal used to broadcast FM radio
d. Difficult passing through building
n. Suppose an EM wave is operating on 88.1 GHz band, what is the wavelength in the unit of millimeters (mm)?
o. For a signal operating on 28 GHz band, which of the following characteristics are correct?
1. Could be a signal used in 5G cellular network
2. Propagating along the surface of the earth
3. Difficult passing through building
4. Can be reflected between ground and ionosphere
p. Suppose an EM wave is operating on 3.99 GHz band, what is the wavelength in the unit of centimeters (cm)?
q. For an MF band signal, which of the following characteristics are correct?
1.Could be a signal used to broadcast AM radio
2. Propagating along the surface of the earth
3. Easily passing through building
4. Difficult passing through building
r. For a VLF band signal, which of the following characteristics are correct?
1. The bandwidth can be a few MHz
2. Easily passing through building
3. Difficult passing through building
4. Propagating along the surface of the earth
s. For an LF band signal, which of the following characteristics are correct?
1. Difficult passing through building
2. The bandwidth can be a few MHz
3. Easily passing through building
4. Propagating along the surface of the earth
t. For a microwave signal on a 2.4 GHz band, which of the following characteristics are correct?
1. Easily passing through building
2. The bandwidth can be a few MHz
3. Propagating along the surface of the earth
4. Could be intefered by microwave oven
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