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ITM 351 Midterm > Exam Review > Flashcards

Exam Review Flashcards

1
Q

EIA/TIA

A

Writes network cable guidelines

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2
Q

IEEE

A

Electronic engineering standards

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3
Q

ISO

A

Technological standards

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4
Q

IANA and ICANN

A

IANA - REcords and doles out IP Addresses

ICANN - Domain name and IP assignment

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5
Q

Transmission channel capacity

A

C = 2B with no noise
More noise = less signal
Measured in bps
The difference btw. highest & lowest frequencies a medium can transmit

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6
Q

ASK Modulation

A

Amplitude Shift Keying

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7
Q

What is Decibel?

A

Relative measure if signal loss or gain

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8
Q

What is dBW?

A

Decibel Watts

Measure of amplification relative to previous Db level

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9
Q

PSK

A

DIGITAL MODULATION - Phase shift keying

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10
Q

FSK

A

Frequency shift keying

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11
Q

QAM

A

Combination of ASK and PSK

Modems modulate by QAM

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12
Q

What is modulation?

A 
Move signal from low to high frequency
Amplitude - ASK
Frequency - FSK
Phase - PSK
QAM = ASK +PSK
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13
Q

Relationship btw. signal and frequency?

A

Higher signal = higher frequency

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14
Q

What does a repeater do?

A

Cleans noise

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15
Q

Baud rate

A

How many times per second a signal changes

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16
Q

Bit rate

A

Speed of data transmission (bps)

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17
Q

Propagation delay

A

Delay b/c distance

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18
Q

Transmission delay

A

Hardware/ cable limits

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19
Q

Round Trip Delay

A

Speed + Distance + ACK

20
Q

Repeater

A

Repeats a signal to prevent weakness/noise from distance
One input / One Output
Inexpensive network expansion
BUS Topology networks

21
Q

Hub

A

Repeater w/ more than one output port

22
Q

Repeater / Hub Layer

A

Physical

23
Q

Switch

A

Subdivide network into segments

24
Q

Bridge

A

Connects segments by analyzing frames & directs them to the correct MAC address

25
Q

Bridge Layer

A

Physical and Link Layer

26
Q

Switch Layer

A

Physical and data link

27
Q

Router

A

Determines the bast path btw. modes - load balancing

Logical addressing - connects LANS and WANS

28
Q

Router Layer

A

Network

29
Q

Best fiber

A

Single Mode

30
Q

Slower fiber

A

Multimode

31
Q

RJ45 Connector Type

A

STP and UTP - Registered Jack

32
Q

ST Connector

A

Straight Tip for Fiber

33
Q

SC Connector

A

Subscriber Connector for Fiber

34
Q

LC Connector

A

Local Connector - Fiber

35
Q

MPLS Switching

A

Multiprotocol Label Switching

Uses packet-switching on circuit-switched networks.

36
Q

VLAN Trunking

A

Enables the movement of traffic to different parts of the network configured in a VLAN. Point-to-point link.

37
Q

Cat 3 speed

A

up to 10 Mbps

38
Q

Cat 5e Speed

A

up to 1 Gbps of throughput at a distance of up to 100 meters

39
Q

100BaseTx Cable

A

Copper. The predominant form of Fast Ethernet, and runs over two wire-pairs inside a *category 5 or above cable

40
Q

1000Base-SX Cable

A

MMF. Distance capability between 220m and 550 m

41
Q

1000Base-LX Cable

A

MMF with a maximum segment length of 550 m

42
Q

UDP

A

Fast but unreliable Transport datagram control
Unreliable b/c no verification - just blasts data
PROS: Efficient & Simple

43
Q

Primary function of TCP and UDP protocols

A 
Service multiplexing (Transport layer)
Service delivery between processes
44
Q

What is service multiplexing?

A

Delivering multiple services on the same IP

TCP and UDP protocols - Transport Layer

45
Q

TCP and UDP common ports

A

TCP - 80 for web service

UDP - 53 for DNS Service

46
Q

Why use TCP/IP ports?

A

Many applications can function simultaneously on an IP host

47
Q

What does TCP do?

A

Connection-oriented & reliable transport protocol.

Negotiates, establishes, and terminates host-to-host connections

ITM 351 Midterm (1 decks)

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