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The Comeback is Real Hocker > 6.1 > Flashcards

6.1 Flashcards

1
Q

What are the characteristics of Multimode Fiber?

A
  • Less expensive
  • LEDs
  • Slower speeds
  • Shorter distances
  • Multiple transmission paths
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2
Q

What are the characteristics of Single Mode Fiber?

A
  • More expensive
  • Uses lasers
  • Higher speeds
  • Longer distances
  • Single transmission path
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3
Q

Topology that combines the aspect of bus, star, or ring technologies into one network.

A

Hybrid Topology

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4
Q

Topology that is an organized grouping of devices where every device connects to another.

A

Full mesh topology

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5
Q

Uses a token-passing mechanism to control which systems can trasnmit data over the network medium.

A

Token Ring

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6
Q

Baseband and broadband are _________.

A

Data transmission methods

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7
Q

Allows for faster downstream data rates than upstream rates.

A

Asymmetric DSL

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8
Q

What is the primary motivation for networking?

A

The need for people to share data and to communicate quickly and effectively.

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9
Q

An international communications standard for sending voice, data and video over telephone lines.

A

Integrated Services Digital Network (ISDN)

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10
Q

The farthest point to the Earth.

A

Apogee

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11
Q

Used to carry the communications signals from one device to another

A

Network cabling/medium

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12
Q

The DoD’s unclassified but sensitive Internet Protocol Route.

A

Non-classified Internet Protocol Router Network (NIPRNet)

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13
Q

There is usually a central server to which all computers logon. The central server can provide various services, including centrally routed Internet access, email, file sharing, and printer access, as well as ensuring security across the network.

A

Client-Server Network

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14
Q

Three types of cables:

A
  • Coaxial Cable
  • Twisted Pair Cabling
  • Fiber-Optic Cabling
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15
Q

The closest point to the Earth.

A

Perigee

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16
Q

The formula for calculating the number of connections required for a full mesh topology.

A

n*(n-1)/2

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17
Q

Twisted pair standard that connects like devices to each other.

A

Crossover cables

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18
Q

What are the two basic orbits used with communications with satellites?

A

Geostationary, and Elliptical

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19
Q

Almost obsolete for new LAN installations, however, network installations requiring means of cabling and delivery of cable television and Internet access to residential areas still use these.

A

Coaxial Cabling

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20
Q

Type of network where computers simply connect with each other in a workgroup to share files, printers, and Internet access. There is no server.

A

Peer-to-Peer Network

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21
Q

What two basic topologies do VSAT networks operate in?

A
  • Mesh Topology
  • Star Topology
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22
Q

The combination of voice, data, video, pictures, and many other features available today.

A

Digital/Telecommunications Convergence

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23
Q

Carries multiple channels on a single cable, where one channel is required to send and another to receive.

A

Broadband

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24
Q

Supports same data rates for upstream and downstream transfers.

A

Symmetric DSL

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25
Q

Orbit where the satellite appears to hang motionless over a point on the equator.

A

Geostationary orbit

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26
Q

A high-speed network technology designed for use on both LANs and WANs. It is connection oriented and uses a dedicated circuit between switches.

A

Asynchronous Transfer Mode (ATM)

27
Q

Uses a continously varying waveform to carry data.

A

Analog Signaling

28
Q

Cabling that consists of multiple pairs of copper wire twisted along the length of the cable.

A

Twisted Pair Cabling

29
Q

Term for networking services such as data, voice, video, and fax transmissions are delivered using geostationary satellites.

A

Very Small Aperture Terminal (VSAT)

30
Q

The collection of networks owned and managed by the DoD.

A

DOD Information Network (DODIN)

31
Q

Topology where every device can connect to every other device via more than one route.

A

Mesh topology

32
Q

Provides up to 100 Mbps upstream and downstream speeds.

A

Very High Bitrate DSL

33
Q

Network that connect devices in a complete ring, as name implies.

A

Ring Topology

34
Q

Specifies the geometric arrangement of the physical layout of a network.

A

Network Topologies.

35
Q

The key to successful communication is a set of ______ that allow computers to establish and maintain useful communication at various levels.

A

Protocols

36
Q

What are the three types of DSL?

A
  • Asymmetric DSL (ADSL)
  • Symmetric DSL (SDSL)
  • Very High Bitrate DSL (VDSL)
37
Q

What are some benefits of networking?

A
  • File Sharing
  • Electronic Mail
  • Device Sharing
38
Q

The Dod’s secret Internet Protocol Router Network

A

Secret Internet Protocol Route Network (SIPRNet)

39
Q

Small network, limited to a single collection of nodes and one or more cables contained in a building or relatively small geographic area. The building blocks for contructing larger networks called internetworks.

A

Local Area Network (LAN)

40
Q

Carries data in digital form using values of electrical voltage or current or as an on/off light source.

A

Digital Signaling

41
Q

The world’s collection of interconnected voice-oriented public telephone networks and is composed of telephone exchanges networked together to form a nationwide (and worldwide) telephone communications systen where calls are switched through a network of copper and fiber-optic cabling.

A

Public Switched Telephone Network (PSTN)

Originally called Plain Old Telephone Service (POTS)

42
Q

What does a communication channel consist of?

A
  • A transmitter and a receiver
  • A transmission signaling method
  • A medium to carry the signal
43
Q

Thinnet is referred to as ______.

A

10Base2

44
Q

The DODIN was formerly called what?

A

Global Information Grid (GIG)

45
Q

Uses only a single fixed frequency to send a signal that occupies the cable’s entire carrying capacity.

A

Baseband

46
Q

A modulation scheme to pack data onto copper lines or existing telephone lines.

A

Digital Subscriber Line (DSL)

47
Q

Topology where computers on the network communicate with the central device but not with one another.

A

Point-to-multipoint

48
Q

Topology that consists of at least two machines with redundant connections.

A

Partial Mesh Topology

49
Q

Translates between the wireless and wired networks.

A

Wireless Access Point (WAP)

50
Q

Orbit where the satellite uses the velocity gained from the gravitational pull of the planet during perigee to maintain a longer duration of straight-line travel away from the perigee

A

Elliptical/Non-Geostationary orbit

51
Q

What three configurations can VSAT operate in?

A
  • Point-to-Point
  • Point-to-Multipoint
  • Multipoint-to-Point
52
Q

Designates and separates each wireless network.

A

Service Set Identifier (SSID)

53
Q

Thicknet is referred to as _______.

A

10Base5

54
Q

Network that has a series of devices, “daisy chained”, with sucessive coaxial cable and appropriate connectors and terminators.

A

Bus topology

55
Q

The area on the Earth that the satellite signal strikes regardless of orbit type is called _________.

A

Footprint

56
Q

Network that has a concentrator/hub device that acts as a central point for all cabling, allowing all connected users to communicate with each other.

A

Star Topology

57
Q

The DoD’s network for handling up to top secret classified information, including Sensitive Compartmented Information (SCI.)

A

Joint Worldwide Intelligence Communications System (JWICS)

58
Q

The pins are in the same order at both ends of the cable, to connect different networking devices to each other (e.g., PC to hub).

A

Straight-through cables

59
Q

Fiber-optic cabling that has a larger diameter core and supports propagation paths and data streams.

A

Multimode Fiber Optic Cabling

60
Q

Cabling that transmits pulses of light rather than electrical signals eliminating the problem of EMI, radio frequency interference, or inductance.

A

Fiber-optic cabling

61
Q

Type of fiber-optic cable that contains a single strand of small diameter glass fiber, providing a single transmission path.

A

Single-mode Fiber Optic Cabling

62
Q

A high speed, digital networking standard that specifies data rates over fiber-optic connections.

A

Synchronous Optical Network (SONET)

63
Q

Links two or more separate locations and can span relatively large geographic area. Often utilize the services of third-party communications providers such as telephone and cable companies to carry network traffic from one location to another.

A

Wide Area Network (WAN)

The Comeback is Real Hocker (17 decks)

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