Computer Networks Quiz

What is the purpose of the Network Layer in computer networks?

• To provide a reliable mechanism for data exchange between two processes

• To transmit light pulses through fiber optic cables

• To establish and control sessions between applications

• To convert data from system-specific format to network format

Which type of physical address can be shared by multiple receivers?

• Broadcast

• Multicast

• Unicast

• Point-to-point

What is the main advantage of using Fiber Optic cables for data transmission?

• High interference

• Susceptible to electrical interference

• Low error rate

• Thicker than copper wires

Which type of satellite orbits 36,000 km above a fixed location on Earth?

• Polar Orbit Satellite

• Geostationary (GEO) Satellite

• Medium-Earth Orbit (MEO) Satellite

• Low-Earth Orbit (LEO) Satellite

What is the main difference between simplex and full-duplex communication?

• Simplex allows communication in both directions simultaneously

• Full-duplex allows communication in only one direction at a time

• Simplex allows communication in one direction only

• Full-duplex allows communication in both directions simultaneously

Which band of the electromagnetic spectrum is widely used for WiFi and Bluetooth networking?

• Microwave band

• UHF band

• VLF band

• ISM band

What is the function of the Presentation Layer in the OSI model?

• Provides a reliable mechanism for data exchange

• Handles the physical transmission of data

• Controls the dialogue between two end systems

• Defines the format in which data is exchanged

Which type of transmission medium is heavily used in the phone system?

• Baseband Coaxial cable

• Fiber Optic cable

• Broadband Coaxial cable

• Twisted pair

What is the main advantage of using Geostationary (GEO) satellites for communication?

• Low latency

• Rapidly set up anywhere/anytime communications

• Limited coverage area

• Low bandwidth

Which type of signal maintains a constant level and then changes to another constant level?

• Digital signal

• Analog signal

• Periodic signal

• Aperiodic signal