Lesson 6 Networking Fundamentals

Front 1

What is the correct wiring order for the T568A standard?

Back 1

Green/white

Green

Orange/white

Blue

Blue/white

Orange

Brown/white

Brown

Front 2

What is the correct wiring order for the T568B standard?

Back 2

Orange/white

Orange

Green/white

Blue

Blue/white

Green

Brown/white

Brown

Front 3

What is the purpose of Power over Ethernet (PoE)?

Back 3

It allows an Ethernet connection to be used as both a network and power connection.

Front 4

What does a cable rated as "plenum" indicate about the cable?

Back 4

It will not produce toxic gas when it burns.

Front 5

What is the main difference in the physical composition of UTP and STP cable?

Back 5

Mesh shielding

Front 6

Which transmission cable has a transmission range up to 100 meters or 328 feet?

Back 6

Unshielded twisted pair (UTP) or shielded twisted pair (STP) cable

Front 7

Which type of network contains a computer, cell phone, personal digital assistant (PDA), or other personal device, and operates using Bluetooth, infrared, USB, or FireWire connectivity?

Back 7

A personal area network (PAN)

Front 8

Which type of wireless network interference is caused by electrical devices, such as fluorescent lights?

Back 8

Electromagnetic interference (EMI)

Front 9

Which IEEE standard defines the Physical layer and the media access control (MAC) sublayer of the Data Link layer for a wired Ethernet?

Back 9

IEEE 802.3

Front 10

What is the transmission distance supported by multi-mode fiber optic cable?

Back 10

3000 feet

Front 11

What does the acronym SNMP denote?

Back 11

Simple Network Management Protocol

Front 12

What does the acronym SMTP denote?

Back 12

Simple Mail Transfer Protocol

Front 13

What does the acronym ISP denote?

Back 13

Internet Service Provider

Front 14

To which port on the router or switch should you connect a computer to access the Internet?

Back 14

To the local area network (LAN) port

Front 15

What is the transmission distance supported by single-mode fiber optic cable?

Back 15

Approx 20 miles

Front 16

What device must be installed in a computer to connect the computer to other computers or a network?

Back 16

A network adapter

Front 17

What are the two main types of network cables?

Back 17

A straight through cable and a crossover cable

Front 18

Which type of network cable is required to directly connect one computer to another computer?

Back 18

Crossover cable

Front 19

Which four data rates are defined for operation over twisted-pair and optical fiber cables for Ethernet networks?

Back 19

10 Mbps for 10Base-T, 100 Mbps for Fast Ethernet, 1000 Mbps for Gigabit Ethernet, 10 Gbps for 10-Gigabit Ethernet

Front 20

Which type of port is used to connect a computer to a 100BaseT network?

Back 20

RJ-45

Front 21

Which type of port is included on a dial-up modem?

Back 21

RJ-11

Front 22

What are the three most popular connectors available for fiber-optic cabling?

Back 22

The LC, ST, and SC connectors

Front 23

What is the maximum transmission speed of Category 5e cable?

Back 23

1000 Mbps or 1 Gbps

Front 24

What is the maximum length of RG-8 ThickNet coaxial cable?

Back 24

Appr. 500 meters (1,640 feet)

Front 25

Which types of unshielded twisted pair (UTP) cables support data transfer up to 1000 Megabits per second (Mbps)?

Back 25

CAT5e, CAT6, CAT6a, CAT7, and CAT7a UTP cables

Front 26

Which device enables you to connect a wired Ethernet device to a wireless network?

Back 26

Wireless bridge

Front 27

Which device is used to extend the range of an existing wireless network?

Back 27

Wireless repeaters

Front 28

What is the maximum transmission speed supported by CAT5 cables?

Back 28

1000 Mbps or 1 Gbps

Front 29

Which connector is used for 10Base-T network cables?

Back 29

RJ-45

Front 30

Which cable is used to connect two workstations directly without using a hub or a switch?

Back 30

Crossover cable

Front 31

Which component do you install in a computer to establish a physical connection to the network media?

Back 31

Network Interface Card (NIC)

Front 32

Which hardware device routes data from a local area network (LAN) to a phone line or other network connection?

Back 32

Router

Front 33

Which hardware device routes data from a local area network (LAN) to a phone line or other network connection?

Back 33

Router

Front 34

How many network cards are required in each computer when Internet access is shared via a router?

Back 34

One network card in each computer

Front 35

Which type of address should you specify in wireless clients when you configure a wireless access point as a router?

Back 35

Gateway address

Front 36

Which devices are used to connect workstations in a 100-BaseT network?

Back 36

Routers, switches, and hubs

Front 37

Which device is the combination of bridge and a router?

Back 37

Brouter

Front 38

Which cable is used with RJ-45 connectors?

Back 38

Unshielded twisted pair (UTP) or shielded twisted pair (STP)

Front 39

Which devices are used to forward packets between multiple networks?

Back 39

Routers

Front 40

What device should you use to isolate broadcast traffic on your LAN to certain segments?

Back 40

Router

Front 41

Which type of cable is used in a 10BASE-T Ethernet standard?

Back 41

CAT3 or CAT5 unshielded twisted pair (UTP) cable

Front 42

Which hardware device operates at the Physical layer (Layer 1) of the Open Systems Interconnection (OSI) model to provide connectivity to network computers?

Back 42

A hub

Front 43

Which hardware device operates at the Data Link layer of the Open Systems Interconnection (OSI) model to provide connectivity to network computers?

Back 43

A switch

Front 44

What hardware device can connect dissimilar networks and can operate at different layers of the Open Systems Interconnection (OSI) model?

Back 44

Gateway

Front 45

Which hardware device can connect similar networks and can separate the network traffic on each segment?

Back 45

Bridge

Front 46

Which unshielded twisted pair (UTP) cables can support Gigabit Ethernet cards?

Back 46

CAT5e, CAT6, CAT6a, CAT7, and CAT 7a

Front 47

How is information translated in digital communication?

Back 47

It is converted into binary format (zero or one) where each bit is representative of two distinct amplitudes.

Front 48

How is information transmitted in analog communication?

Back 48

Information is translated into electric pulses of varying amplitude

Front 49

What does the acronym ACL denote?

Back 49

Access control list

Front 50

What are the two main connectors used with coaxial cable?

Back 50

Bayonet Neill-Concilman (BNC) and Threaded Neill-Concilman (TNC) connectors

Front 51

How does communication occur in full-duplex mode?

Back 51

You can transmit and receive the signal on the same channel at the same time.

Front 52

How does communication occur in half-duplex mode?

Back 52

A single communication channel is used for both transmitting and receiving.

Front 53

How does communication occur in simplex mode?

Back 53

Two separate channels are used for transmitting and receiving the signal.

Front 54

What is the maximum transmission speed of Category 6 (Cat6) cable?

Back 54

10 Gbps

Front 55

What is the maximum length of RG-58 ThinNet coaxial cable?

Back 55

Appr. 185 meters (607 feet)

Front 56

What does the acronym DMZ denote?

Back 56

Demilitarized zone

Front 57

What does the acronym AP denote?

Back 57

Access Point

Front 58

What does the acronym IPSec denote?

Back 58

Internet Protocol Security

Front 59

access control list (ACL)

Back 59

The set of rules that determines which traffic gets through a firewall and which traffic is blocked.

Front 60

active hub

Back 60

A type of hub that uses electronics to amplify and clean up the signal before it is broadcast to the other ports.

Front 61

BNC connector

Back 61

A type of connector used to attach stations to a thinnet network.

Front 62

bus topology

Back 62

A network topology in which all computers are connected in a serial fashion. A bus typically uses coaxial cable.

Front 63

centralized processing

Back 63

A network-processing scheme in which all "intelligence" is found in one computer and all other computers send requests to the central computer to be processed. Mainframe networks use centralized processing.

Front 64

client computer

Back 64

A computer that requests resources from a network, often referred to as a workstation.

Front 65

client software

Back 65

Software that allows a device to request resources from a network.

Front 66

collision

Back 66

When two or more stations transmit onto a shared medium simultaneously, invalidating the data sent from each station.

Front 67

connectivity device

Back 67

Any device that facilitates connections between network devices. Some examples are hubs, routers, switches, and bridges.

Front 68

contention-based

Back 68

A type of connection in which there is competition between two or more network devices for the same bandwidth.

Front 69

crossover cable

Back 69

A twisted-pair network cable used for connecting computers directly to each other. One end has pins 1 and 3 and 2 and 6 reversed, hence the term crossover.

Front 70

dedicated server

Back 70

The server that is assigned to perform a specific application or service.

Front 71

distributed processing

Back 71

A computer system in which processing is performed by several separate computers linked by a communications network. The term often refers to any computer system supported by a network, but it more properly refers to a system in which each computer is chosen to handle a specific workload and the network supports the system as a whole.

Front 72

domain

Back 72

Also referred to as a client-server networking model, a domain is a network in which security is managed by a centralized server, often known as a domain controller.

Front 73

Ethernet over Power

Back 73

Technology that allows for network signals to be sent via electrical power outlets. Devices must be on the same electrical circuit for Ethernet over Power to work.

Front 74

F-connector

Back 74

The type of network cable connector that is found on the end of cable television cables.

Front 75

file locking

Back 75

A feature of many network operating systems that "locks" a file to prevent more than one person from updating the file at the same time.

Front 76

file server

Back 76

A computer used primarily for the storage and management of files on a network.

Front 77

frame

Back 77

The Data Link layer product that includes a portion of the original user data, upper-layer headers, and the Data Link header and trailer.

Front 78

full-duplex communication

Back 78

Communications in which both entities can send and receive simultaneously.

Front 79

half-duplex communication

Back 79

Communications that occur when only one entity can transmit or receive at any one instant.

Front 80

header

Back 80

Information attached to the beginning of a network data frame.

Front 81

hub

Back 81

A basic connectivity device used to link several computers together into a physical star topology. A hub repeats any signal that comes in one port and copies it to the other ports.

Front 82

hybrid topology

Back 82

A physical network topology that is a combination of bus, star, and mesh.

Front 83

local area network (LAN)

Back 83

A group of computers and associated peripherals connected by a communications channel and capable of sharing files and other resources among several users.

Front 84

local connector (LC)

Back 84

Fiber-optic cable connector that corresponds to the mini form-factor standard. Colloquially known as the "little connector."

Front 85

mesh topology

Back 85

A type of logical topology in which each device on a network is connected to every other device on the network. This topology uses routers to search multiple paths and determine the best path.

Front 86

metropolitan area network (MAN)

Back 86

Network that is defined by its geographical nature, such as spanning a metropolitan area or a college campus.

Front 87

multimode fiber

Back 87

Fiber-optic cable that can transmit multiple signals at the same time.

Front 88

network interface card (NIC)

Back 88

In networking, the PC expansion board that plugs into a personal computer or server and works with the network operating system to control the flow of information over the network. The network interface card is connected to the network cabling (twisted-pair, coaxial, or fiber-optic cable), which in turn connects all of the network interface cards in the network.

Front 89

network operating system (NOS)

Back 89

Operating system that runs on a computer and allows it to connect and operate on a computer network.

Front 90

nondedicated server

Back 90

A computer that can be both a server and a workstation. In practice, by performing the functions of both server and workstation, this type of server does neither function very well. Nondedicated servers are typically used in peer-to-peer networks.

Front 91

Open Systems Interconnection (OSI) model

Back 91

A seven-layer theoretical networking model developed by the International Organization of Standardization (ISO).

Front 92

passive hub

Back 92

A type of hub that electrically connects all network ports together. This type of hub is not powered.

Front 93

personal area network (PAN)

Back 93

A small-scale network of Bluetooth-enabled devices.

Front 94

plenum-rated

Back 94

When referring to coaxial covering, a designation that means the coating does not produce toxic gas when burned (as PVC does) and it is rated for use in air plenums that carry breathable air.

Front 95

polyvinyl chloride (PVC)

Back 95

The type of plastic coating found on most network cables. Emits poisonous gasses when burned.

Front 96

Power over Ethernet (PoE) injector

Back 96

A hardware device that sits between a switch and an access point that requires power to be provided over the Ethernet connection. The injector supplies the power on the Ethernet connection if the switch is not equipped to do so.

Front 97

protocol

Back 97

In networking and communications, the specification that defines the procedures to follow when transmitting and receiving data. Protocols define the format, timing, sequence, and error-checking systems used.

Front 98

ring topology

Back 98

A physical network topology that has computers connected in a ring shape. Uncommonly used.

Front 99

RJ (registered jack)

Back 99

RJ (registered jack)A connector type for twisted-pair cabling. Telephone cabling uses an RJ-11 connector and network cabling uses an RJ-45 connector.

Front 100

router

Back 100

In networking, an intelligent connecting device that can send packets to the correct local area network segment to take them to their destination. Routers link LAN segments at the Network layer of the OSI model for computer-to-computer communications.

Front 101

routing tables

Back 101

Tables on a router that determine where the router will send packets on the network.

Front 102

scatternet

Back 102

A network of two or more piconets.

Front 103

shielded twisted-pair (STP)

Back 103

Copper network cable that has two or four pairs of twisted wires, shielded by a braided mesh and covered with an outside coating.

Front 104

single point of failure

Back 104

A computer term used to define one device or connection that, if it fails, brings down the entire system.

Front 105

Single-mode fiber (SMF)

Back 105

Fiber-optic cable that can transmit only one signal at a time. It's the longest-distance cable available for networking use today.

Front 106

splitter

Back 106

A hardware device that takes one input signal and sends it to several output devices.

Front 107

star topology

Back 107

A physical network topology in which all computers are attached to a central connectivity point.

Front 108

straight tip (ST)

Back 108

One of the most common fiber-optic connectors, similar in style to the BNC connector used in 10Base2 Ethernet.

Front 109

subscriber connector (SC)

Back 109

A fiber-optic cable connector that snaps and locks into place.

Front 110

switch

Back 110

A Layer 2 device similar to a hub in its port count but more advanced, with the ability to filter traffic based on the destination MAC address of each frame.

Front 111

unshielded twisted-pair (UTP)

Back 111

Networking cable that has four twisted pairs of copper wire and a flexible outer coating.

Front 112

wide area networks (WANs)

Back 112

A network that expands LANs to include networks outside of the local environment and also to distribute resources across distances.