Computer Networking Quiz

What is the primary goal of computer networking?

• To increase hardware cost

• To enable resource sharing and communication

• To reduce network security

• To limit data transmission

How many layers are there in the ISO-OSI Reference Model?

• 5

• 6

• 7

• 8

Which modulation technique combines amplitude and phase modulation?

• Frequency Modulation (FM)

• Amplitude Modulation (AM)

• Quadrature Amplitude Modulation (QAM)

• Phase Modulation (PM)

Which signal conversion is used to represent binary data as analog signals?

• Digital-to-Digital

• Digital-to-Analog

• Analog-to-Digital

• Analog-to-Analog

What is a key difference between TCP/IP and OSI models?

• TCP/IP has more layers

• OSI is a practical implementation

• TCP/IP combines presentation and session layers

• OSI is used in real-world networks

Which of the following is an unguided transmission medium?

• Twisted Pair

• Coaxial Cable

• Fiber Optics

• Radio Waves

What is the main advantage of packet switching over circuit switching?

• Dedicated bandwidth

• Efficient use of network resources

• Lower latency

• Fixed path for data

Which error detection method uses polynomial division?

• Checksum

• CRC

• LRC

• Parity Check

Which protocol retransmits only the lost frame?

• Stop-and-Wait ARQ

• Go-Back-N ARQ

• Selective Repeat ARQ

• Sliding Window

What does the Stop-and-Wait ARQ protocol rely on?

• Multiple frame transmission

• Acknowledgment for each frame

• Token passing

• Collision detection