Domain3-Part2

Question 1

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

Answer 1

100 Meters

Question 2

What is the most common 10BaseT network,

Answer 2

Cat 3 or Voice grade (VG)

Question 3

What is the maximum cable length for Thicknet,

Answer 3

500 Meters

Question 4

How is a T1 Line divided,

Answer 4

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

Question 5

What network provides the best security and centralized management,

Answer 5

Client Server

Question 6

Name 5 advantages for Client/server networking,

Answer 6

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

Question 7

List 4 disadvantages for Peer to peer,

Answer 7

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

Question 8

2 disadvantages in a bus topology,

Answer 8

1. Cabling is difficult to troubleshoot;

2. a break in cabling brings down whole network

Question 9

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

Answer 9

Backbones–fiber serve as a backbone between hubs

Question 10

What will a hardware loopback adapter allow you to do,

Answer 10

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

Question 11

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

Answer 11

100Base TX

Question 12

What is the UTP standard called 100baseTX,

Answer 12

It requires 2 pairs of Category 5 UTP

Question 13

What is the distance of a 100BaseTX segment,

Answer 13

100 Meters

Question 14

What connector does a 100BaseTX use,

Answer 14

RJ-45–maximum length is 100 meters

Question 15

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

Answer 15

CSMA/CD–carrier sense multiple access/collision detection

Question 16

What IEEE standard defines CSMA/CD,

Answer 16

802.3–Ethernet and IEEE Ethernet specify similar technologies

Question 17

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

Answer 17

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

Question 18

What is the maximum length of a 100BaseTX segment,

Answer 18

100 Meters

Question 19

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

Answer 19

100Base TX–IEEE 802.3 is Ethernet

Question 20

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

Answer 20

10GBASE-SR

Question 21

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

Answer 21

10GBASE-LR

Question 22

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

Answer 22

10GBASE-ER

Question 23

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

Answer 23

demarc

Question 24

What are 4 accurate references to demarc terminating devices,

Answer 24

1. NTU
2. NTD
3. Smart jack
4. NTI

Question 25

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

Answer 25

Demarc extension

Question 26

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

Answer 26

Plenum

Question 27

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

Answer 27

802.11n

Question 28

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

Answer 28

100 Meters

Question 29

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

Answer 29

MIMO--use multiple antennae to increase their range

Question 30

What 802.11 standard was MIMO introduced,

Answer 30

802.11n

Question 31

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

Answer 31

FALSE--MIMO was not introduced until 802.11n

Question 32

What technology is defined in the IEEE 802.16 specification,

Answer 32

WiMAX

Question 33

What method is used to designate SONET fiber optic speed rating

Answer 33

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

Question 34

What is an accurate networking term for the acronym PON,

Answer 34

PASSIVE Optical Network

Question 35

What is PON,

Answer 35

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

Question 36

DWDM,

Answer 36

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

Question 37

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

Answer 37

1. LTE; 2. WiMAX; 3. HSPA+

Question 38

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

Answer 38

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

Question 39

What was the first technology that used wave division technology,

Answer 39

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

Question 40

In what year were the first WDM products commercially available,

Answer 40

1995

Question 41

What switching type is best for standard telephone network,

Answer 41

Circuit-switched

Question 42

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

Answer 42

Packet-switched

Question 43

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

Answer 43

2 and 3

Question 44

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

Answer 44

Shims

Question 45

POTS is an example of what type of network

Answer 45

Point to Point

Question 46

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

Answer 46

Point to multipoint

Question 47

The strength of a signal is measured in _________,

Answer 47

Throughput Decibels (DB)