GATE CSE Introduction to Computer Networks – CN Practice Test

GATE CSE Introduction to Computer Networks – CN Practice Test | Set 1

Questions 86-90 of 100

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Question 86

MSQ · Multiple Correct 2 mark

Which statements about propagation delay are correct?

A Increasing link bandwidth alone does not reduce it. B Increasing physical distance increases it for fixed v. C It is determined by the time needed to place all bits onto the link. D It is approximately d/v.

Question 87

MSQ · Multiple Correct 2 mark

Which statements about a Layer-2 Ethernet switch are correct?

A It normally keeps all ports in one broadcast domain when no VLANs are used. B It routes packets between IP subnets by default. C It forwards known unicast frames selectively. D It learns source MAC addresses.

Question 88

MSQ · Multiple Correct 2 mark

Which statements about routers are correct?

A They separate broadcast domains. B Each routed interface belongs to a separate IP network/subnet in typical configurations. C They operate at the Network Layer for IP forwarding. D They forward every Ethernet frame purely by destination MAC address.

Question 89

MSQ · Multiple Correct 2 mark

Which statements about full-mesh topology are correct?

A A failure of one physical link need not disconnect every pair of remaining devices. B Each device requires N-1 physical ports. C The number of duplex links is N(N-1)/2. D It minimizes cabling compared with a star topology.

Question 90

MSQ · Multiple Correct 2 mark

Which statements about circuit switching are correct?

A A setup phase is typically required. B Packets are independently routed through arbitrary paths without setup. C Resources can be reserved for the connection. D The path is normally maintained for the duration of the circuit.