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IT2 Advancement > Study Guide Cram > Flashcards

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?

A

Sound

24
Q

Sound heard by ear?

A

Sonics

25
Q

Layer of the OSI model:

-Directly supports users and application.

A

Application

26
Q

Transmission rate of a T2 line?

A

T2

-6.3 Mbps

27
Q

Used to secure a LAN from a public network?

A

Firewalls

28
Q

Topology that is the least reliable?

A

Star

29
Q

Layer of the OSI model:

-Provides representation of data used between application processes?

A

Presentation

30
Q

Area Network with Basewide workstations?

A

Metropolitan area network

31
Q

Area Network in which one base would connect to another?

A

MAN

32
Q

Topology in which:

Components or nodes connected to the same cable.

A

Bus

33
Q

Topology in which:

the far ends of the cable never meet.

A

Bus

34
Q

Relates to flexible interconnection of incompatible systems?

A

OSI Model

35
Q

What is the model for incompatible systems using data comms facilities?

A

OSI Model

36
Q

Layer of the OSI model:

Physical pathway the data should take.

A

Network

37
Q

Transmission rate of a T3 line?

A

T3

46 Mbps

38
Q

How many:

Primary modes of system operation are there?

A

2

39
Q

During the pinging process:

What is the ping that is sent out called?

A

Echo message

40
Q

Wiring concentrator:

That allows workstations to be inserted or bypassed on the ring.

A

MAU

41
Q

Layer of the OSI model:

Error free transmission of information over the physical medium.

A

Data link

42
Q

Two most common types of twisted-pair media?

Numbers of gauge.

A

22 and 24 gauge

43
Q

Recording events and info to detect usage violations?

A

1st step of Auditing

44
Q

Confirming network procedures operating?

A

2nd step of Auditing

45
Q

How many:

Major functions do protocols have?

A

2

46
Q

Computing element gets the attention of another element?

A

Interrupt

47
Q

Duplicate hardware and network facility segments being available at all times?

A

Redundancy

48
Q

How does sound travel through a medium?

A

Wave motion

49
Q

Definition of sound?

A

Range of compression-wave frequencies

50
Q

Layout the sonics table.

A

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
Q

2 classifications for sound?

A

Noise or tones

IT2 Advancement (17 decks)

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