Questão 1
Questão
Bridges segregate LANs into broadcast domains.
Questão 2
Questão
Choose the correct sequence for the TCP 3 way hand shake
Responda
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SYN, SYN/ACK, ACK
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ACK , SYN/ACK SYN
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SYN/ACK, ACK, SYN
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SYN/ACK, SYN, ACK
Questão 3
Questão
Switches make forwarding decisions based on the
Responda
-
destination mac address
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source mac address
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ip address
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default gateway
Questão 4
Questão
All of the following are fields in a TCP header except ________.
Responda
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FCS
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offset
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destination
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window
Questão 5
Questão
If a switch receives a frame with an unknown destination address, the frame is _________.
Responda
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flooded
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broadcast
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multicast
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unicast
Questão 6
Questão
________, __________, and ____________ are needed to construct a socket.
Responda
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an IP address
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a transport protocol
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a port number
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ethertype
Questão 7
Questão
A switch populates its MAC address table with addresses from the destination field of received Ethernet frames.
Questão 8
Questão
Choose the correct description for the function below.
Multiplexing using ports
Responda
-
Function that allows receiving hosts to choose the correct application for which the data is destined, based on the port number.
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Process of numbering and acknowledging data with Sequence and Acknowledgment header fields.
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Process that uses window sizes to protect buffer space and routing devices from being overloaded with traffic.
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Process used to initialize port numbers and Sequence and Acknowledgment fields
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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.
Questão 9
Questão
In order to make accurate forwarding decision, a switch needs __________
Questão 10
Questão
Choose the correct description for the function below.
Error recovery (reliability)
Responda
-
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.
Questão 11
Questão
With an empty MAC address table, a switch acts like a _______.
Questão 12
Questão
Choose the correct description for the function below.
Flow control using windowing
Responda
-
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.
Questão 13
Questão
Without _____, flooded frames would loop indefinitely.
Questão 14
Questão
Choose the correct description for the function below.
Ordered data transfer and data segmentation
Responda
-
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.
Questão 15
Questão
With store and forward processing the entire ________ must be received before it is processed by the switch.
Responda
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frame
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packet
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segment
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bit stream
Questão 16
Questão
With store and forward processing the entire ________ must be received before it is processed by the switch.
Responda
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TCP segment
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UDP segment
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TCP Packet
-
UDP packet
Questão 17
Questão
Fragment free processing waits to receive the first ___ bytes of a frame before it makes it's forwarding decision
Questão 18
Questão
Port numbers are a vital part of the socket concept.
Questão 19
Questão
Fragment free processing is the most desirable decision logic because it allows for error free transmission along with minimal latency.
Questão 20
Questão
Fragment free processing is the most desirable decision logic because it allows for error free transmission along with minimal latency.
Questão 21
Questão
When creating a modern LAN, you use _______ and __________
Responda
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Switches
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Routers
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bridges
-
hubs
Questão 22
Questão
A protocol that requires an exchange of messages before data transfer begins, or that has a required preestablished correlation between two endpoints.
Questão 23
Questão
________ and ________ segregate LANs into collision domains.
Responda
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switches
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routers
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hubs
-
bridges
Questão 24
Questão
A protocol that does not require an exchange of messages and that does not require a preestablished correlation between two endpoints.
Questão 25
Questão
An Ethernet collision domain is comprised of the set of devices that receive a frame when broadcast by another device.
Questão 26
Questão
The UDP header is the same length as the TCP header
Questão 27
Questão
VoIP requires low delay, but can tolerate more jitter than web browsing
Questão 28
Questão
___________ defines the quality of the data transfer between two applications and in the network as a whole.
Responda
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QoS
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bandwidth
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delay
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jitter
-
loss
Questão 29
Questão
When a host receives a ________ frame, it must process the received frame.
Responda
-
broadcast
-
unicast
-
multicast
-
experimental
Questão 30
Questão
A LAN consists of all devices in the same _________.
Responda
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broadcast-domain
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collision-domain
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sub-domain
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active directory