Medium Access Control (ALOHA, CSMA/CD) and Ethernet/Switching: GATE CS previous year questions (Computer Networks)

GATE CS 2024 Set 2NAT2 marksEasy (estimate)
GATE CS 2024 Set 2, Q.55
Consider an Ethernet segment with a transmission speed of $1 0^{8}$ bits/sec and a maximum segment length of 500 meters. If the speed of propagation of the signal in the medium is...
Medium Access Control (ALOHA, CSMA/CD) and Ethernet/Switching
GATE CS 2021 Set 2NAT2 marksMedium (estimate)
GATE CS 2021 Set 2, Q.64 (CS Q.54)
Consider a network using the pure ALOHA medium access control protocol, where each frame is of length 1,000 bits. The channel transmission rate is 1 Mbps ( $= 1 0^{6}$ bits per seco...
Medium Access Control (ALOHA, CSMA/CD) and Ethernet/Switching
GATE CS 2019NAT2 marksMedium (estimate)
GATE CS 2019, Q.59 (CS Q.49)
Consider that 15 machines need to be connected in a LAN using 8-port Ethernet switches. Assume that these switches do not have any separate uplink ports. The minimum number of s...
Medium Access Control (ALOHA, CSMA/CD) and Ethernet/Switching · OSI/TCP-IP Layering, Physical Layer and Switching
GATE CS 2016 Set 2MCQ1 markEasy (estimate)
GATE CS 2016 Set 2, Q.34 (CS Q.24)
In an Ethernet local area network, which one of the following statements is TRUE?
Medium Access Control (ALOHA, CSMA/CD) and Ethernet/Switching
GATE CS 2016 Set 2NAT2 marksEasy (estimate)
GATE CS 2016 Set 2, Q.63 (CS Q.53)
A network has a data transmission bandwidth of $20 \times 1 0^{6}$ bits per second. It uses CSMA/CD in the MAC layer. The maximum signal propagation time from one node to another n...
Medium Access Control (ALOHA, CSMA/CD) and Ethernet/Switching · Data Link Layer: Framing, Error Detection and Sliding Window
GATE CS 2016 Set 2MCQ2 marksMedium (estimate)
GATE CS 2016 Set 2, Q.64 (CS Q.54)
For the IEEE 802.11 MAC protocol for wireless communication, which of the following statements is/are TRUE? I. At least three non-overlapping channels are available for transmis...
Medium Access Control (ALOHA, CSMA/CD) and Ethernet/Switching · Data Link Layer: Framing, Error Detection and Sliding Window
GATE CS 2015 Set 1NAT2 marksMedium (estimate)
GATE CS 2015 Set 1, Q.39 (CS Q.29)
Consider a LAN with four nodes $S_{1}, S_{2}, S_{3}$ and $S_{4}$ . Time is divided into fixed-size slots, and a node can begin its transmission only at the beginning of a slot. A collisi...
Medium Access Control (ALOHA, CSMA/CD) and Ethernet/Switching
GATE CS 2015 Set 3MCQ1 markEasy (estimate)
GATE CS 2015 Set 3, Q.16 (CS Q.6)
Consider a CSMA/CD network that transmits data at a rate of 100 Mbps ( $1 0^{8}$ bits per second) over a 1 km (Kilometer) cable with no repeaters. If the minimum frame size required...
Medium Access Control (ALOHA, CSMA/CD) and Ethernet/Switching
GATE CS 2014 Set 1NAT2 marksMedium (estimate)
GATE CS 2014 Set 1, Q.36 (CS Q.26)
Consider a token ring network with a length of 2 km having 10 stations including a monitoring station. The propagation speed of the signal is $2 \times 1 0^{8}$ m/s and the token t...
Medium Access Control (ALOHA, CSMA/CD) and Ethernet/Switching
GATE CS 2013MCQ2 marksEasy (estimate)
GATE CS 2013, Q.36 (CS Q.36)
Determine the maximum length of the cable (in km) for transmitting data at a rate of 500 Mbps in an Ethernet LAN with frames of size 10,000 bits. Assume the signal speed in the...
Medium Access Control (ALOHA, CSMA/CD) and Ethernet/Switching

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