Which of the following is a disadvantage of a star topology? MCQ with Answer and Explanation

Which of the following is a disadvantage of a star topology?
A. Difficult to add new devices
B. Expensive cabling compared to bus
C. Low data rates
D. If the central hub fails, the network fails
Answer: Option D
Solution (By JKSSB Mock Tests)
Star topology relies on a central device; its failure disables the whole network.

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Practice More Computer Networking Questions

Question #1
Which network device operates at the OSI model's physical layer and can regenerate signals?
A. Gateway
B. Switch
C. Repeater
D. Router

Correct Answer: Option C


Explanation:
Repeaters work at the physical layer to regenerate and amplify signals to extend cable length.

This question belongs to: Computer Computer Networking
Question #2
What type of network architecture designates a high-capacity central machine to host resources, validate logins, and manage security parameters for all connected client systems?
A. Linear Bus Pattern
B. Peer-to-Peer Model
C. Client-Server Model
D. Decentralized Mesh Mesh

Correct Answer: Option C


Explanation:
A client-server model uses a centralized server to manage security, databases, and network administration, responding to requests from client workstations.

This question belongs to: Computer Computer Networking
Question #3
Which type of network connection allows communication to flow in only one direction permanently, with no way to send responses back (e.g., traditional television broadcasting)?
A. Full-Duplex
B. Multiplex
C. Simplex
D. Half-Duplex

Correct Answer: Option C


Explanation:
Simplex communication is strictly unidirectional, meaning one station transmits while the other can only receive.

This question belongs to: Computer Computer Networking