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Network Plus > Domain3-Part2 > Flashcards

Domain3-Part2 Flashcards

1
Q

What is the maximum cable length for a 10BaseT network,

A

100 Meters

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2
Q

What is the most common 10BaseT network,

A

Cat 3 or Voice grade (VG)

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3
Q

What is the maximum cable length for Thicknet,

A

500 Meters

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4
Q

How is a T1 Line divided,

A

It is divided into 24 discrete-24 channels add 8k for framing=1544 Mbps

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5
Q

What network provides the best security and centralized management,

A

Client Server

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6
Q

Name 5 advantages for Client/server networking,

A
  1. Easier to scale;
  2. server-based networks can work well from 10-10000 users;
  3. Centralized management;
  4. one password per user;
  5. upgrading improves efficiency of the network
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7
Q

List 4 disadvantages for Peer to peer,

A
  1. inefficiency of peer networks increases beyond 12 users;
  2. limited security; passwords for shared resource; 3. no centralized management;
  3. more complex in maintaining
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8
Q

2 disadvantages in a bus topology,

A
  1. Cabling is difficult to troubleshoot;

2. a break in cabling brings down whole network

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9
Q

Because of high cost of fiber optics, what is it normally used,

A

Backbones–fiber serve as a backbone between hubs

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10
Q

What will a hardware loopback adapter allow you to do,

A

test the NIC regardless of the condition of the cable or hub

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11
Q

What uses 2 pairs of CAT 5 wires and can transmit at 100 Mbps,

A

100Base TX

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12
Q

What is the UTP standard called 100baseTX,

A

It requires 2 pairs of Category 5 UTP

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13
Q

What is the distance of a 100BaseTX segment,

A

100 Meters

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14
Q

What connector does a 100BaseTX use,

A

RJ-45–maximum length is 100 meters

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15
Q

Ethernet networks use what method of gaining access to the transmission media,

A

CSMA/CD–carrier sense multiple access/collision detection

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16
Q

What IEEE standard defines CSMA/CD,

A

802.3–Ethernet and IEEE Ethernet specify similar technologies

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17
Q

What access method senses whether the cable is free before sending data,

A

CSMA/CD–carrier sense multiple access/collision detection–They listen to the network to see if it is already in use

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18
Q

What is the maximum length of a 100BaseTX segment,

A

100 Meters

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19
Q

What IEEE standard, similar to Fast Ethernet, uses 2 pairs of CAT5 cable,

A

100Base TX–IEEE 802.3 is Ethernet

20
Q

Name a Ethernet cable topology that supports a Gigabit Ethernet–10000 Mbps connection–segment length of 82 meters,

A

10GBASE-SR

21
Q

Name a Ethernet cable topology that supports a Gigabit Ethernet–10000 Mbps connection–segment length of 10 kilometers,

A

10GBASE-LR

22
Q

Name a Ethernet cable topology that supports a Gigabit Ethernet–10000 Mbps connection–segment length of 40 kilometers

A

10GBASE-ER

23
Q

The point where one company’s communication network is connected to a network owned company is known as,

A

demarc

24
Q

What are 4 accurate references to demarc terminating devices,

A
  1. NTU
  2. NTD
  3. Smart jack
  4. NTI
25
Q

What component would you need if your demarc is not in the same physical location as your network’s main cross connect,

A

Demarc extension

26
Q

What cable designation is required by most states when used in dropped ceilings,

A

Plenum

27
Q

Channel bonding was introduced with this wireless revision to reduce overhead,

A

802.11n

28
Q

What is the maximum geographic range of an 802.11g antenna,

A

100 Meters

29
Q

The 802.11n protocol uses what technology on access points to extend their range,

A

MIMO–use multiple antennae to increase their range

30
Q

What 802.11 standard was MIMO introduced,

A

802.11n

31
Q

True or False an 802.11g modem with MIMO will provide greater bandwidth and coverage area,

A

FALSE–MIMO was not introduced until 802.11n

32
Q

What technology is defined in the IEEE 802.16 specification,

A

WiMAX

33
Q

What method is used to designate SONET fiber optic speed rating

A

OC–Optical Carrier–are shown as OC-1; OC-12, OC-24 and up

34
Q

What is an accurate networking term for the acronym PON,

A

PASSIVE Optical Network

35
Q

What is PON,

A

a telecommunications network to allow a single optical fiber to server multiple locations

36
Q

DWDM,

A

Dense Wavelength-division multiplexing technology–wavelength spacing; also used for FM transmission as DWDM-FM

37
Q

4G LTE standard of high speed data communication is based on 3 technologies,

A
  1. LTE;
  2. WiMAX;
  3. HSPA+
38
Q

What technology that optimize optical transmission uses the 1550 nm band and utilizes the capabilities of EDFAs over single mode fiber,

A

DWDM–uses the capabilities of erbidium doper fiber amplifiers (EDFA to amplify signals

39
Q

What was the first technology that used wave division technology,

A

WDM–wavelength division multiplexing. Initial used 2 signals over single fiber pair; now as many as 160 signals over the same pair

40
Q

In what year were the first WDM products commercially available,

A

1995

41
Q

What switching type is best for standard telephone network,

A

Circuit-switched

42
Q

What switching type is best for a Skype connection while maintaining data integrity,

A

Packet-switched

43
Q

A multilayer switch generally operates at these two layers of the OSI model

A

2 and 3

44
Q

In an Ethernet frame, these are placed between the Layer 2 and Layer 3 data

A

Shims

45
Q

POTS is an example of what type of network

A

Point to Point

46
Q

Broadcast transmissions are an example of what kind of transmission type,

A

Point to multipoint

47
Q

The strength of a signal is measured in _________,

A

Throughput Decibels (DB)

Network Plus (21 decks)

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