Which topology requires N(N-1)/2 links for N devices? A) Star B) Bus C) Ring D) Mesh

D) Mesh

In a star topology, if N devices are connected, how many cables are required?

N cables

True or False: In bus topology, if the backbone cable fails, the entire network continues to function.

False. If the common cable fails, the whole system will crash down.

What is the main function of the Data Link Layer in the OSI model?

Ensures error-free data transfer between nodes using MAC addresses.

Riddle: I connect all devices to a single point, but if I fail, all communication stops. What am I?

A hub in a star topology

The number of I/O ports required per device in a mesh topology is ______.

N-1

Which transmission medium is known for its immunity to electromagnetic interference?

Optical Fiber Cable

In full-duplex mode, data can be transmitted ______.

Simultaneously in both directions

True or False: The Spanning Tree Protocol (STP) prevents network loops by allowing multiple active paths.

False. STP prevents network loops by blocking redundant paths.

What are the three primary transmission modes in computer networks?

Simplex, Half-Duplex, and Full-Duplex

MCQ: Which of the following layers is responsible for end-to-end communication? A) Physical Layer B) Transport Layer C) Application Layer D) Data Link Layer

B) Transport Layer

Fill in the blank: The ______ topology allows for easy installation and expansion but has a single point of failure at the hub.

Star

What protocol is used to detect and prevent loops in redundant network links?

Spanning Tree Protocol (STP)

Riddle: I’m a protocol that provides reliable transmission with acknowledgments but adds overhead. What am I?

Transmission Control Protocol (TCP)

Fill in the blank: In a ring topology, the transmission must pass through each device in a ______ manner.

Unidirectional