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GATE CSE

Lan Technologies and Wi-Fi

Computer Networks

Previous Years Questions

Marks 1

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Consider the resolution of the domain name www.gate.org.in by a DNS resolver. Assume that no resource records are cached...
GATE CSE 2022
In an Ethernet local area network, which one of the following statements is TRUE?
GATE CSE 2016 Set 2
Consider a CSMA/CD network that transmits data at a rate of 100 Mbps (108 bits second) over a 1 km(kilometer) cable with...
GATE CSE 2015 Set 3
In the diagram shown below, L1 is an Ethernet LAN and L2 is a Token-Ring LAN. An IP packet originates from sender S and ...
GATE CSE 2014 Set 2
In Ethernet when Manchester encoding is used, the bit rate is:
GATE CSE 2007
In a network of LANs connected by bridges, packets are sent from one LAN to another through intermediate bridges. Since ...
GATE CSE 2005

Marks 2

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Consider that 15 machines need to be connected in a LAN using 8-port Ethernet switches. Assume that these switches do no...
GATE CSE 2019
Consider a simple communication system where multiple nodes are connected by a shared broadcast medium (like Ethernet or...
GATE CSE 2018
A network has a data transmission bandwidth of 20 × 106 bits per second. It uses CSMA/CD in the MAC layer. The maximum s...
GATE CSE 2016 Set 2
For the IEEE 802.11 MAC protocol for wireless communication, which of the following statements is/are TRUE? I. At least...
GATE CSE 2016 Set 2
Consider a LAN with four nodes S1, S2, S3 and S4. Time is divided into fixed-size slots, and a node can begin its transm...
GATE CSE 2015 Set 1
Determine the maximum length of cable (in km) for transmitting data at a rate of 500 Mbps in an Ethernet LAN with frames...
GATE CSE 2013
There are n stations in a slotted LAN. Each station attempts to transmit with a probability p in each time slot. What is...
GATE CSE 2007
Consider the diagram shown below where a number of LANs are connected by (transparent) bridges. In order to avoid packet...
GATE CSE 2006
Consider the diagram shown below where a number of LANs are connected by (transparent) bridges. In order to avoid packet...
GATE CSE 2006
Suppose the round trip propagation delay for a 10 Mbps Ethernet having 48-bit jamming signal is 46.4 μs. The minimum fra...
GATE CSE 2005
A and B are the only two stations on an Ethernet. Each has a steady queue of frames to send. Both A and B attempt to tra...
GATE CSE 2004
A 2 km long broadcast LAN has 107 bps bandwidth and uses CSMA/CD. The signal travels along the wire at 2 × 108 m/s. What...
GATE CSE 2003

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