Bridges segregate LANs into broadcast domains.
Choose the correct sequence for the TCP 3 way hand shake
SYN, SYN/ACK, ACK
ACK , SYN/ACK SYN
SYN/ACK, ACK, SYN
SYN/ACK, SYN, ACK
Switches make forwarding decisions based on the
destination mac address
source mac address
ip address
default gateway
All of the following are fields in a TCP header except ________.
FCS
offset
destination
window
If a switch receives a frame with an unknown destination address, the frame is _________.
flooded
broadcast
multicast
unicast
________, __________, and ____________ are needed to construct a socket.
an IP address
a transport protocol
a port number
ethertype
A switch populates its MAC address table with addresses from the destination field of received Ethernet frames.
Choose the correct description for the function below.
Multiplexing using ports
Function that allows receiving hosts to choose the correct application for which the data is destined, based on the port number.
Process of numbering and acknowledging data with Sequence and Acknowledgment header fields.
Process that uses window sizes to protect buffer space and routing devices from being overloaded with traffic.
Process used to initialize port numbers and Sequence and Acknowledgment fields
Continuous stream of bytes from an upper-layer process that is “segmented” for transmission and delivered to upper-layer processes at the receiving device, with the bytes in the same order.
In order to make accurate forwarding decision, a switch needs __________
a populated MAC address table
a management IP address
a default gateway
a default VLAN
Error recovery (reliability)
With an empty MAC address table, a switch acts like a _______.
hub
bridge
router
switch
Flow control using windowing
Without _____, flooded frames would loop indefinitely.
STP
802.1Q
CSMA/CD
Ordered data transfer and data segmentation
With store and forward processing the entire ________ must be received before it is processed by the switch.
frame
packet
segment
bit stream
TCP segment
UDP segment
TCP Packet
UDP packet
Fragment free processing waits to receive the first ___ bytes of a frame before it makes it's forwarding decision
64
48
32
128
Port numbers are a vital part of the socket concept.
Fragment free processing is the most desirable decision logic because it allows for error free transmission along with minimal latency.
When creating a modern LAN, you use _______ and __________
Switches
Routers
bridges
hubs
A protocol that requires an exchange of messages before data transfer begins, or that has a required preestablished correlation between two endpoints.
Connection-oriented protocol
Connectionless protocol
________ and ________ segregate LANs into collision domains.
switches
routers
A protocol that does not require an exchange of messages and that does not require a preestablished correlation between two endpoints.
An Ethernet collision domain is comprised of the set of devices that receive a frame when broadcast by another device.
The UDP header is the same length as the TCP header
VoIP requires low delay, but can tolerate more jitter than web browsing
___________ defines the quality of the data transfer between two applications and in the network as a whole.
QoS
bandwidth
delay
jitter
loss
When a host receives a ________ frame, it must process the received frame.
experimental
A LAN consists of all devices in the same _________.
broadcast-domain
collision-domain
sub-domain
active directory