D413 - Telecomm and Wireless Communications., Exams of Computer Science

D413 - Telecomm and Wireless Communications.

Typology: Exams

2025/2026

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D413 - Telecomm and Wireless Communications
1.
Network
Interconnected
collection
of
computers
and
communication
devices
2.
Node
Individual
computer
or
device
connected
to
a
network
3.
Host
Computer
or
device
connected
to
a
network
that
provides
services
4.
Advantages of
Networking
Sharing
equipment
and
data
5.
Disadvantages
of
Personnel
and
cost
increase,
vulnerabilities
to
cyberattacks
Networking
6.
Local Area Net-
work (LAN)
7.
Metropolitan
Area Network
(MAN)
8.
Wide Area Net-
work (WAN)
9.
Personal Area
Network (PAN)
10.
Campus Area
Network (CAN)
11.
Global Area Net-
work (GAN)
A network that is usually confined to a single building and managed by a single
entity. Example: Oflce Building
Consists of two or more LANs connected with private or public communication
lined within the same geographic areafor example, a computer network used
by governmental employees of an entire city.
Consists
of
a
large
number
of
networks
and
PCs
connected
with
private
and
public
communication
lines
throughout
many
geographic
areas;
for
example,
computers
used by the US government.
A
small
network,
perhaps
consisting
of
a
single
computer
and
mobile
device.
A
network
spread
across
multiple
buildings
in
the
same
geographical
location,
much like a college campus.
Any
network
that
spans
multiple
countries,
for
example,
the
Internet.
12.
Star Topology
A topology that involves running cables from each node to connect a single point.
The center is usually a device known as a hub.
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D413 - Telecomm and Wireless Communications

  1. Network Interconnected collection of computers and communication devices
  2. Node Individual computer or device connected to a network
  3. Host Computer or device connected to a network that provides services
  4. Advantages of Networking Sharing equipment and data
  5. Disadvantages of Personnel and cost increase, vulnerabilities to cyberattacks Networking
  6. Local Area Net- work (LAN)
  7. Metropolitan Area Network (MAN)
  8. Wide Area Net- work (WAN)
  9. Personal Area Network (PAN)
  10. Campus Area Network (CAN)
  11. Global Area Net- work (GAN) A network that is usually confined to a single building and managed by a single entity. Example: Oflce Building Consists of two or more LANs connected with private or public communication lined within the same geographic area—for example, a computer network used by governmental employees of an entire city. Consists of a large number of networks and PCs connected with private and public communication lines throughout many geographic areas; for example, computers used by the US government. A small network, perhaps consisting of a single computer and mobile device. A network spread across multiple buildings in the same geographical location, much like a college campus. Any network that spans multiple countries, for example, the Internet.
  12. Star Topology A topology that involves running cables from each node to connect a single point. The center is usually a device known as a hub.

D413 - Telecomm and Wireless Communications

  1. Ring Topology Common network topology with devices connected in a circular loop
  2. Bus Topology Network topology that uses a single cable or conductor to connect all nodes on the network.
  3. Mesh Topology A network topology where each node is connected to each of the other nodes. The number of cable paths rapidly increases as more nodes are added.
  4. Centralized Ad- ministration
  5. Decentralized Administration
  6. Cloud Comput- ing Methodology used to administer a client/server network Methodology used to administer a peer-to-peer network Otters services including SaaS, PaaS, and IaaS
  7. Private Cloud Type of cloud that is not accessible to the general public
  8. Public Cloud Type of cloud that is accessible to the general public
  9. Hybrid Cloud Type of cloud that combines private and public cloud services
  10. Network Operat- ing System (NOS) Provides a communication system between nodes. Examples include Windows Server 2008/2012/2016, Unix, and Linux.
  11. Data Segments Divided parts of data to be transmitted on a network
  12. Protocol Set of rules that controls communication between two nodes
  13. MAC Address Physical address used to identify a node on a network
  14. IP Address Logical address used to identify a node on a network
  15. Media Converter Converts one type of electrical signal into another
  1. Frequency A measurement of the ability of network media to carry an electronic signal.
  2. Simplex Communication that occurs in one direction only.
  3. Half Duplex Communication occurs in both directions, but not at the same time.
  4. Full Duplex Communication that happens in two directions at the same time.
    1. Near-End Crosstalk A measurement of crosstalk at the near end, or send-ing end, of a cable.
  5. Far-End Crosstalk A measurement of reflective loss at the far end, or output end, of a cable. (FEXT)
  6. Alien Crosstalk (AXT) Crosstalk generated from network cables in close proximity to each other
  7. Decibal An electrical measurement that is used to express the amount of power or energy gained or lost.
  8. Power over Eth- ernet (PoE) A way of powering devices that consume small amounts of electrical energy, approximately 13 watts at 48 volts, over net-work cable.
  9. fiber-optic cable Cable that uses light guided through thin glass/plastic tubes, instead of electrical signals, to transmit data.
  10. Wavelength The total distance the electromagnetic wave or light wave travels during one full cycle.
  11. Single-mode fiber-optic cable Has a smaller core diameter than multimode fiber-optic cable and carries light farther and with less attenuation.
  12. Modulation The mixing of two radio signals, typically a carrier wave with a data signal.
  13. Infrared Used in line-of-sight transmissions and is not susceptible to radio interference.
  1. Orthogonal Fre- quency Divi- sion Multiplexing (OFDM)
  2. Dense Wave- length Divi- sion Multiplexing (DWDM)
  3. Frequency Divi- sion Multiplexing (FDM)
  4. Synchronous Time Division Multiplexing
  5. Asynchronous Time-Division Multiplexing Transmission technique used with wireless devices that use the 5 - GHz radio band and can achieve a data rate as high as 54 Mbps. It divides the allotted frequency into channels similar to frequency hopping and direct sequencing. Digital. An optical multiplexing technology that allows several ditterent streams of data to travel down the same optical fiber simultaneously. Divides the available bandwidth into frequency bands, and each band is used for a ditterent communication channel. Analog or Digital. Which multiplexing technique transmits each signal from one input source via a single time slot through the creation of ditterent slots? Which category of multiplexing randomly allocates time slots to ditterent data signals depending on the rate at which they are being generated from the source?
  6. Needs Which assessment is the first part of the design process?
  7. Isolation Which electrical system is required for network equipment according to industry standards?
  8. Frequency Divi- sion Multiplexing (FDM)
  9. Time-division multiplexing A company is developing a television network to broadcast local news content using analog signals. Which multiplexing technique should be used? Which type of multiplexing is used to send and receive digital signals between connected devices?

tween 15 and 20 MHz

  1. 802.3 IEEE standard that describes the characteristics of various Ethernet technologies, such as 10 Mbps, Fast Ethernet, Gigabit Ethernet, and 10 Giga-bit Ethernet.
  2. Analog signal A signal that has a continuous range of values, much like a wave.
  3. Digital Signal Signal that has discrete values of on or ott.
  4. Crosstalk Interference that comes from neighboring conductors inside a wire's insulating jacket
  5. Resistance The opposition to direct current (DC)
  6. Cat 5/5e Maxi- mum Frequency Rating
  7. Cat 6 Maximum Frequency Rating
  8. Cat 6a Maximum Frequency Rating
  9. Cat 7 Maximum Frequency Rating
  10. Cat 5/5e Data Rate 100 MHz 250 MHz 500 MHz 600 MHz 100 Mbps/1000 Mbps (using 4 pairs)
  11. Cat 6 - Data Rate 1 GBps
  12. Cat 6a - Data Rate 10 Gbps
  1. Cat 7 - Data Rate 10 Gbps
  2. Cat 8 - Data Rate 40 Gbps
  3. Auto-MDIX com- pliant device Automatically reassigns the pin functions so that a crossover cable is not required for communication.
  4. demodulation The receiver separates the voice wave from the carrier wave.
  5. Wireless Access Point (WAP) Provides a connection between a wireless network and a cable-based network.
  6. 802.1x A standard for authentication methods for wireless networking.
  7. Service Set Iden- tifier (SSID) The user-supplied network name of a WLAN; it can generally be alphanumeric from 2 to 32 characters.
  8. Parity check A method of verifying the integrity of transmitted data.
  9. Broadcast storm When the number of collisions reaches a point that the network is flooded with a continuous number of collisions and rebroadcasts.
  10. Collision Domain a section of a network where collisions occur
  11. Segmenting The act of dividing a network into smaller sections to avoid collisions
  12. Interior Gateway Protocol (IGP)
  13. Exterior Gateway Protocol (EGP) The routing protocol the administrator uses to connect networks within an au- tonomous system. A routing protocol that was designed to exchange routing information between ditterent autonomous systems.
  14. Peak Amplitude What is the absolute value of a signal's greatest magnitude in proportion to the energy that it is able to carry?