Computer Networks and Communication Systems
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Questions and Answers

What is the maximum segment length for twisted pair cable?

  • 100 meters (correct)
  • 150 meters
  • 200 meters
  • 50 meters

Which type of twisted pair cable has the highest cost?

  • Category 5 UTP
  • Unshielded Twisted Pair (UTP)
  • Shielded Twisted Pair (STP) (correct)
  • Category 3 UTP

What is the purpose of using RJ-45 connectors in twisted pair cables?

  • To decrease bandwidth support
  • To reduce interference (correct)
  • To facilitate easy installation
  • To increase attenuation

How does increasing the twisting amount in UTP cables affect the interference and bandwidth?

<p>Decreases interference and increases bandwidth (C)</p> Signup and view all the answers

Which type of cable is known for its easy installation and low cost?

<p>Unshielded Twisted Pair (UTP) (B)</p> Signup and view all the answers

What is the main advantage of packet-switching?

<p>Line efficiency allows sharing a single link by many packets (A)</p> Signup and view all the answers

Which medium uses pulses of light for data transmission?

<p>Fiber-optic cable (A)</p> Signup and view all the answers

What is the purpose of buffering packets in packet-switching networks?

<p>To prevent data loss and equalize transmission rates (A)</p> Signup and view all the answers

Which type of cable medium is commonly used in network data transmission?

<p>Optical fiber cable (C)</p> Signup and view all the answers

In packet-switching, why can multiple packets share a single node-to-node link efficiently?

<p>The packets are stored in a queue and transmitted quickly (D)</p> Signup and view all the answers

Which type of network topology is characterized by each device having a direct connection to every other device?

<p>Mesh Topology (C)</p> Signup and view all the answers

In a circuit-switched network, what happens before data transmission can occur?

<p>A dedicated communication path is established (C)</p> Signup and view all the answers

What type of technology involves breaking data into small packets for transmission and reassembling them at the receiving end?

<p>Packet-Switching (C)</p> Signup and view all the answers

Which of the following is an example of wired transmission media?

<p>Fiber Optics (C)</p> Signup and view all the answers

What hardware component directly accesses the network and can be internal or external (USB)?

<p>Network Interface Card (NIC) (A)</p> Signup and view all the answers

Which type of network device allows different nodes to communicate with each other at the same time without slowing each other down?

<p>Switch (B)</p> Signup and view all the answers

What is the main function of a hub in a network?

<p>Serve as a central connection point for LAN devices (B)</p> Signup and view all the answers

Which network device notifies other devices of errors and communication failures?

<p>Switch (B)</p> Signup and view all the answers

What category do network access devices fall under?

<p>Network Access Devices (D)</p> Signup and view all the answers

Which intermediary device interconnects different end devices together in a network?

<p>Switch (C)</p> Signup and view all the answers

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