What is the main objective of studying Computer Networks?

• To learn about different programming languages

• To understand the basics of Computer Networks and Various Protocols

• To explore the history of computer hardware

• To master graphic design software

Which model is used to compare the OSI and TCP/IP reference models?

• The UDP Model

• The TCP/IP Model

• The HTTP Model

• The OSI Model

What is the main advantage of using fiber-optic cables over metallic cables?

• Higher cost

• Resistance to tapping

• Immunity to electromagnetic interference

• Less signal attenuation

Which type of antenna is used for radio waves communication?

• Unidirectional Antenna

• Parabolic Dish

• Horn

• Omni directional Antenna

What is the main disadvantage of optical fiber compared to other guided media?

• Cost

• Immunity to tapping

• Unidirectional light propagation

• Installation and maintenance

Which type of network covers a large area such as a city?

• LAN

• WLAN

• MAN

• PAN

What is the main purpose of using a star network topology?

• Entire network goes down if central device fails

• Easy troubleshooting of individual device issues

• Centralized management of the network

• High cost to implement

Which type of cable is commonly used in traditional Ethernet LANs?

• Coaxial Cable

• Fiber-Optic Cable

• Twisted-Pair Cable

• Microwave Cable

What is the main characteristic of radio waves in terms of propagation?

• Susceptible to interference

• High frequency

• Low bandwidth

• Unidirectional

Which type of transmission medium uses electromagnetic waves?

• Coaxial Cable

• Twisted-Pair Cable

• Wireless

• Fiber-Optic Cable