22 Questions
What is the function of a packet switch?
Forward a packet from one communication link to another
What is the purpose of Frequency Division Multiplexing (FDM)?
To transmit different channels in different frequency bands
What is the role of an Internet Service Provider (ISP)?
Operate a network of packet switches and communication links
What is the main function of a Local Area Network (LAN) or Ethernet?
Connect multiple sub-networks and servers via interconnected switches
What is the primary purpose of Wide-area Wireless / cellular networks / Global System for Mobile communication (GSM)?
To provide network coverage within 1-5 km using 3G, 4G, or 5G technologies
What is the role of Protocol in networking?
Determine the format and order of messages exchanged between communicating entities
Which type of physical media allows signals to propagate freely?
Electro-magnetic radio waves
What type of communication method involves establishing a dedicated communication path before data transmission?
Circuit switching
What is the characteristic of fiber optic cable mentioned in the text?
Carries light pulses, each pulse representing a bit
In which type of media does two insulated copper wires transmit data in electron format?
Twisted pair copper
What is the purpose of routing in network communication?
Determines source-destination route taken by data packets using routing algorithms
When does packet loss occur in a network?
When the network discarded some packets due to excessive traffic
What does nodal processing refer to in network communication?
The time taken by the switch to read data packets header information (source, destination, and length)
What is the role of forwarding in network communication?
Moves packets from router’s input to appropriate router output
What does throughput refer to in network communication?
The rate at which bits are transferred between sender/receiver
What is the characteristic of Distributed Denial of Service (DDoS) attack?
Attackers make resources (server, bandwidth) unavailable
Which protocol is used for transferring web pages over the internet?
HTTP
What does the acronym WAN stand for in networking?
Wide Area Network
Which protocol is used for the delivery of email over the internet?
SMTP
What is the function of DNS in networking?
Resolves domain names to IP addresses
What is the purpose of a DSLAM in a Digital Subscriber Line (DSL) network?
Aggregates multiple DSL connections onto a high-speed backbone network
What does the acronym CPU stand for in computer systems?
Central Processing Unit
Test your knowledge of key definitions related to the internet and computer networks, including terms like Internet, packet switch, Internet Service Provider (ISP), and protocol.
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