destination address in its forwarding, table and determines the outgoing interface
C. By using a class II repeater in a collision domain
D. By using broadcast addresses as source addresses
Answer B. Packet-switching technique in which frames are completely processed
before being forwarded out the appropriate port. This processing includes
calculating the CRC and checking the destination address. In addition, frames must
be temporarily stored until network resources (such as an unused link) are
available to forward the message. Contrast with cut-through packet switching.
77. Choose all of the following that are needed to support full-duplex Ethernet.
A. Multiple paths between multiple stations on a link
B. Full-duplex NIC cards
C. Loop back and collision detection disabled
D. Automatic detection of full-duplex operation by all connected stations
Answer B C. Capability for simultaneous data transmission between a sending station
and a receiving station.
78. What two types of technology does 100BaseT use?
A. Switching with 53-byte cells
B. CSMA/CD
C. IEEE 802.5
D. 802.3u
Answer B D. 100-Mbps baseband Fast Ethernet specification using UTP wiring. Like
the 10BaseT technology on which it is based, 100BaseT sends link pulses over the
network segment when no traffic is present. However, these link pulses contain more
information than those used in 10BaseT. Based on the IEEE 802.3 standard.
79. Choose all of the following that are advantages to segmenting with routers.
A. Manageability
B. Flow control
C. Explicit packet lifetime control
D. Multiple active paths
Answers A, B, C, D. All of the above is correct. A router is a Network layer device
that uses one or more metrics to determine the optimal path along which network
traffic should be forwarded. Routers forward packets from one network to another
based on network layer information