Internet and Network Definitions

Forwards a packet on one of its outgoing communication links

Network of packet switches and communication links

Different channels transmitted in different frequency bands

<p>Connects many sub-networks and servers via interconnected switches</p> Signup and view all the answers

<p>Average 450 Mbps</p> Signup and view all the answers

<p>Circuit switching establishes a dedicated communication path before data transmission, while packet switching divides data into smaller units and transmits them over the network.</p> Signup and view all the answers

<p>Coaxial cable transmits data in electron format (electricity) through two concentric copper conductors.</p> Signup and view all the answers

<p>Spyware records keystrokes, web sites visited, and uploads the information to a collection site.</p> Signup and view all the answers

<p>Packet loss occurs when the network cannot accommodate any more packets due to the queue reaching its maximum capacity.</p> Signup and view all the answers

<p>Fiber optic cable carries data in the form of light pulses, with each pulse representing a bit.</p> Signup and view all the answers

<p>Format, order of messages, and actions taken on transmission and/or receipt of a message or event.</p> Signup and view all the answers

<p>FDM allows different channels to be transmitted in different frequency bands.</p> Signup and view all the answers

<p>1-5 km coverage with 1-10 Mbps transmission rate.</p> Signup and view all the answers

<p>Access Networks connect end-user devices to the internet, while LANs or Ethernet connect sub-networks and servers.</p> Signup and view all the answers

<p>A packet switch forwards incoming packets on outgoing communication links.</p> Signup and view all the answers

<p>A virus is a self-replicating infection by receiving/executing object, such as an e-mail attachment. A worm, on the other hand, is a self-replicating infection by passively receiving an object that gets itself executed.</p> Signup and view all the answers

<p>DDoS attacks involve attackers making resources, such as servers and bandwidth, unavailable to legitimate users by overwhelming them with a large volume of traffic.</p> Signup and view all the answers

<p>Packet switching involves dividing data into smaller units called packets and transmitting them over the network. In contrast, circuit switching establishes a dedicated communication path between two devices before data transmission begins.</p> Signup and view all the answers

<p>Network delay occurs when the size of the queue is large, leading to excessive waiting time for packet delivery in high network traffic. This can result in packet loss when the queue reaches its maximum capacity and cannot accommodate additional packets.</p> Signup and view all the answers

<p>Nodal processing refers to the time taken by a switch to read data packet header information, including the source, destination, and packet length (L).</p> Signup and view all the answers