28 Questions
The ______ barked
dog
The ______ meowed
cat
Fiber optic cable: glass fiber carrying ______ pulses, each pulse a bit, characterized by highspeed operation with transmission rate 10-100 Gbps transmission rate and low error rate.
light
Twisted pair copper: two insulated copper wires to transmit data in ______ format.
electron
Electro-magnetic radio waves: signal carried in electromagnetic spectrum without ______. Used in wireless LAN (WiFi) and wide-area (cellular).
wires
Circuit switching: is a communication method where a dedicated communication path, or circuit, is established between two devices before data transmission begins. Packet switching: is a communication method where data is divided into smaller units called ______ and transmitted over the network.
packets
Routing: Determines source-destination route taken by data packets using ______ algorithms.
routing
Queue: collection of data packets collectively waiting to be transmitted by a network device using a per-defined structure ______.
methodology
Network Delay: occurs if the size of the queue is large, and each packet has to wait until its delivery in excessive network ______.
traffic
Packets Loss: occurs when the network discarded some packets because the queue reaches its maximum capacity and can’t accommodate any more ______.
packets
Nodal processing: the time taken by the switch to read data packets header information (source, destination, and length L). Queueing: the waiting time of the packets in the ______.
queue
Propagation: the time taken one bit to travel from one end of the wire to the other. It's proportional to the length of the wire. Throughput: rate (bits/time unit) at which bits transferred between ______/receiver.
sender
What is the function of a packet switch?
Dividing data into smaller units and forwarding them over the network
What is the main purpose of an Internet Service Provider (ISP)?
Providing a network of packet switches and communication links
What is the role of Frequency Division Multiplexing (FDM)?
Transmitting data in different frequency bands
What is the purpose of Local Area Network (LAN) or Ethernet?
Connecting end-user devices to the internet
What technology is used by Wide-area Wireless / cellular networks?
3G or 4G or 5G technologies
What is the characteristic of fiber optic cable?
Carrying electrical pulses with high-speed operation
What is the propagation time proportional to?
The length of the wire
Which type of cable transmits data in electron format?
Coaxial cable
What does packet switching involve?
Dividing data into smaller units called packets
What causes Network Delay?
Queue size and excessive network traffic
In circuit switching, what is established before data transmission begins?
A communication path between devices
What does spyware do?
Records keystrokes and web sites visited
What is the purpose of Distributed Denial of Service (DDoS)?
To make resources (server, bandwidth) unavailable
What is the characteristic of fiber optic cable?
$10-100$ Gbps transmission rate
What type of waves are used in wireless LAN (WiFi) and wide-area (cellular)?
Electro-magnetic radio waves
What does nodal processing measure?
The time taken by the switch to read data packets header information (source, destination, and length L)
Test your knowledge of key definitions related to the internet and networking, including terms like Internet, packet switch, Internet Service Provider (ISP), and Protocol.
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