Question

 

Wireless IEEE 802.11 LANs can use either CSMA/CD or CSMA/CA access methods; however, CSMA/CA is preferred since it eliminates all data collisions between nodes.

True

False

 

“1GBaseT” is a separate standard that competes with “IEEE 802.3”. i.e., 1GBaseT is not compatible with IEEE 802.3.

True

False

 

IEEE 802.3 Ethernet only describes the OSI RM data link layer specification over UTP.

True

False

Answer 1

1. Wireless IEEE 802.11 LANs can use either CSMA/CD or CSMA/CA access methods; however, CSMA/CA is preferred since it eliminates all data collisions between nodes

False, CSMA/CA is preferred because CSMA/CD is not compatible with wireless IEEE 802.11 LAN because at the time of data transmission it starts desensing their reciever

2. “1GBaseT” is a separate standard that competes with “IEEE 802.3”. i.e., 1GBaseT is not compatible with IEEE 802.3.

False ,1GBaseT is compatible with IEEE 802.3.

3. IEEE 802.3 Ethernet only describes the OSI RM data link layer specification over UTP

True because UTP (unshielded twisted pair cable) is been used for the Ethernet the environmental effect is not more on the UTP. The shielded twisted pair cable is used on the data link when there is some sort environmental effect like when cabling underground the shielded twisted pair cable is used.