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a random access protocol

a random access protocol

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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QUESTION 19 1 points Save Ardwer How do stations using a random access protocol for multi-access channels generally recover from a collision? O Two stations involved in a collision open a TCP connection so they can align on who transmits next. O A central access point will take over and specify which station may transmit first. O They implement a randomized backof period before trying to retransmit. O They use TDMA, FDMA, or CDMA so that collisions never actually happen. QUESTION 20 1 points Save Answer Which of the following is not a true statement regarding MAC addresses? O When sending data to a host in an external network, we can use either the IP address or the MAC address to specity that host in our request. There are more possible unique MAC addresses than there are unique IP(V4) addresses; however there are more unique IPV6 addresses than unique MAC addresses. O A link-layer hardware device (e.g. NIC) has a permanent and constant MAC address irespective of which network it attaches to. O MAC addresses are used to send data from one node to another within a single subnet.
Transcribed Image Text:QUESTION 19 1 points Save Ardwer How do stations using a random access protocol for multi-access channels generally recover from a collision? O Two stations involved in a collision open a TCP connection so they can align on who transmits next. O A central access point will take over and specify which station may transmit first. O They implement a randomized backof period before trying to retransmit. O They use TDMA, FDMA, or CDMA so that collisions never actually happen. QUESTION 20 1 points Save Answer Which of the following is not a true statement regarding MAC addresses? O When sending data to a host in an external network, we can use either the IP address or the MAC address to specity that host in our request. There are more possible unique MAC addresses than there are unique IP(V4) addresses; however there are more unique IPV6 addresses than unique MAC addresses. O A link-layer hardware device (e.g. NIC) has a permanent and constant MAC address irespective of which network it attaches to. O MAC addresses are used to send data from one node to another within a single subnet.
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