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Study Guide Cram Flashcards

1
Q

What is a recurring disturbance through space with or without physical medium?

A

Wave motion

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2
Q

Often related to water. Up and down movement and right angles?

A

Transverse Waves

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3
Q

Waves in the direction of propogation?

A

Longitudinal

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4
Q

Position, particle of matter would have if it were not disturbed by wave motion?

A

Reference line

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5
Q

Distance in space occupied by one cycle of a radio wave at any given instant?

A

Waveleng

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6
Q

Measurements wavelengths are expressed in?

A

Meters

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7
Q

121.5

A

International Aeronautical Emergency

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8
Q

123.1

A

Enroute aircraft,SAR Ops

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9
Q

156.8

A

VHF, Radiotelephone service

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10
Q

243

A

Distress and Emergency Frequency

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11
Q

4125 and 6215

A

Carrier frequency, distress and safety

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12
Q

Wave property gives a relative indication of the amount of energy the wave transmits?

A

Amplitude

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13
Q

Continuous series of waves having the same amplitude and wavelengths?

A

Wave Train

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14
Q

Number of wave related occurrences per second?

A

Hertz

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15
Q

Number of vibrations, cycles of wave trains and unit of time frequency of wavetrains are measured in?

A

Hertz

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16
Q

Rate disturbance travels medium or velocity, Crest of waves?

A

Velocity

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17
Q

One complete vibrators cycle of events?

A

Period

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18
Q

Wave directed toward mirror?

A

Incident

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19
Q

What does the law of reflection dictate?

A

The angle of incidence is equal to the angle of reflection

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20
Q

What is bending when meeting an obstruction?

A

Diffraction

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21
Q

How does sound travel through a medium?

A

Wave motion

22
Q

Range of compression wave frequencies to which the human ear is sensitive?

A

Range of compression=Wave frequencies

23
Q

The wave of compression and wave frequencies to which the human ear is sensitive?

24
Q

Sound heard by ear?

25
Layer of the OSI model: -Directly supports users and application.
Application
26
Transmission rate of a T2 line?
T2 -6.3 Mbps
27
Used to secure a LAN from a public network?
Firewalls
28
Topology that is the least reliable?
Star
29
Layer of the OSI model: -Provides representation of data used between application processes?
Presentation
30
Area Network with Basewide workstations?
Metropolitan area network
31
Area Network in which one base would connect to another?
MAN
32
Topology in which: Components or nodes connected to the same cable.
Bus
33
Topology in which: the far ends of the cable never meet.
Bus
34
Relates to flexible interconnection of incompatible systems?
OSI Model
35
What is the model for incompatible systems using data comms facilities?
OSI Model
36
Layer of the OSI model: Physical pathway the data should take.
Network
37
Transmission rate of a T3 line?
T3 46 Mbps
38
How many: Primary modes of system operation are there?
2
39
During the pinging process: What is the ping that is sent out called?
Echo message
40
Wiring concentrator: That allows workstations to be inserted or bypassed on the ring.
MAU
41
Layer of the OSI model: Error free transmission of information over the physical medium.
Data link
42
Two most common types of twisted-pair media? Numbers of gauge.
22 and 24 gauge
43
Recording events and info to detect usage violations?
1st step of Auditing
44
Confirming network procedures operating?
2nd step of Auditing
45
How many: Major functions do protocols have?
2
46
Computing element gets the attention of another element?
Interrupt
47
Duplicate hardware and network facility segments being available at all times?
Redundancy
48
How does sound travel through a medium?
Wave motion
49
Definition of sound?
Range of compression-wave frequencies
50
Layout the sonics table.
Ultrasonic=more than 10,000 hertz Upper limit for sonics=10,000 hertz Lower limit for sonics=15 hertz Infrasonic=less than 15 hertz
51
2 classifications for sound?
Noise or tones

IT2 Advancement (17 decks)

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