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Quizz in networks architecture please answer each question with clear explaination ( calculus if necessary ) How does a machine know whether the destination is
Quizz in networks architecture please answer each question with clear explaination calculus if necessary How does a machine know whether the destination is in the same current network or in a remote network?
By checking the destination MAC address
By applying the mask to the destination IP address.
By checking the destination port number
By using the broadcast IP address
What operation does a machine perform when sending an IP packet if the destination is on a remote network?
send the packet to the gateway router
obtain the MAC address of the destination using ARP
look up the MAC address of the gateway router in the ARP table.
check the routing table and send the packet with the IP address of the gateway router
as the destination address
Data is sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in this situation? Choose three.
The source port field identifies the running application or service that will process the data returned to the PC
returned to the PC
The TCP process running on the PC randomly selects the destination port when establishing a session with the server.
UDP segments are encapsulated in IP packets for transport over the network. The UDP destination port number identifies the server application or service that will process the data.
data.
TCP is the preferred protocol when a function requires lower network latency and overhead.
The TCP source port number identifies the sending machine on the network.
See the diagram. Which two network addresses can be assigned to the network containing machines? Your answers should waste as few addresses as possible, not reuse addresses already allocated and stay within the address range. The addresses shown in the diagram are network addresses. Choose two.
Which subnet mask should be used for three subnets? pts
Which two pieces of information are displayed in the output of the ifconfig command? Choose two.
IP address
Broadcast address
Nexthop addresses
Gateway MAC address
Default gateway IP address
What is the valid machine address range to which the IP address belongs?
Which subnet would include the address as a usable machine address?
What happens if the default gateway address is incorrectly configured on a machine?
The machine cannot communicate with other machines on the local network.
The machine cannot communicate with machines on other networks.
The machine will have to use ARP to determine the correct address of the default gateway.
The switch does not forward packets sent by the machine.
What are the two characteristics of the ARP protocol choose two
When a machine encapsulates a packet in a frame, it refers to the routing table to determine the correspondence between IP addresses and MAC addresses.
If a machine is ready to send a packet to a local destination machine and it has the IP address but not the MAC address of the destination, it generates an ARP broadcast request.
If no device responds to the ARP request, the source machine broadcasts the data packet to
all the machines on the network.
If a device receiving an ARP request has the destination IP address, it responds with an ARP reply.
A network administrator adds a new subnet. The new subnet must support connected machines. What is the smallest network mask the network administrator can use for the new network?
During the routing process, what does the router do immediately after matching the destination IP address to a network on a directly connected routing table entry?
analyse the destination IP address
forward the packet to the directly connected interface
find the next hop address for the packet abandon the traffic after consulting the route table
What is the purpose of the TCP sliding window?
to ensure that segments arrive at their destination in order
terminate communication when data transmission is complete
inform a source to retransmit data
to inform the source of the amount of data it can send
What feature do TCP and UDP share?
reception window size
port numbers
connection opening
aquitement
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