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What address does the router use to compare to the routing table?
in general the router uses the network address to compare to the routing table. Specifically, on the internet, the Router looks up the destination IP address in the router table to determine where to route the packet.
What is the default amount of time that an entry remains in your ARP cache before being removed?
The default time to keep the ARP table entry is 20 mins...For every 20mins the ARP table will be refreshed. Because, The neighboring device can be out of the network so the ARP table should be updated according to the network states. When the table gets refreshed the content will get erased and when the chance comes to resolve the MAC address to the known IP address the ARP request will be sent in broadcast mode where the reply will be in Unicast mode.
What is the purpose of a simple routing table in a computer network?
A simple routing table in a computer network is used to determine the best path for data packets to travel from one network device to another. It helps the network devices efficiently route and deliver data to their intended destinations.
How do you show the mac address table on an extreme Network Summit 300 24 switch?
Try show fdb. if you want to show the ARP table use: show iparp
In an IPv4 environment what information is used by the router to forward data packets from one interface of a router to another?
It uses the MAC address, Media Access Control. Every packet sent from a computer contains its MAC address. The router stores this in its routing table. When it receives a packet with a destiation address of that MAC address, then it forwards it to that computer. This is called NAT, Network Address Translation. It uses the Destination IP address
What is the role of the device-status table and what type of information does it contain?
The device-status table tracks the current operational status of devices in a network, such as whether they are online or offline, their health status, and any performance metrics. It provides real-time information on the availability and condition of network devices, which is crucial for network monitoring and troubleshooting.
Which device uses mac address table to send data from the input port to the port that connects to the destination device?
You seem to be referring to a NIC (Network interface card).
What is different between router and bridgi?
A router is a layer 3 device that allows different networks to be connected together. This device has to find the network address of the sender and receiver to determine whether or not to route a packet from one network to the next. A bridge is a layer 2 device, and only looks at MAC addresses. It is commonly used in LAN environments to segregate LAN segments; it will forward packets from one end of the bridge to another if the target MAC addresses are in the bridge's table. This helps to keep traffic that is destined for the same network segment in that segment and not sent across the entire network.
The PC the routing table of which is displayed is configured correctly To which network device or interface does the IP address 192.168.1.254 belong?
router interface fa0/0
What device builds a MAC address table?
BRIDGE
How do you get segmented base and offset when you have logical address?
You cannot. The conversion goes this way: segment+offset -> [segment-table] -> linear_address -> [page-table] -> physical_address PS: In most cases there is only one (4GB long) segment (or one code-segment and one data-segment), so offset is quite the same as linear address
When a host on network A sends a message to a host on network B which address does the router look at?
When a host on network A sends a message to a host on network B, the router looks at the destination IP address in the packet’s header to determine where to forward the message. This IP address is used to identify the specific network and host within that network. The router uses its routing table to decide the best path for the packet based on this destination IP address. The MAC address is not used for routing between different networks, as it only applies to the local network segment.
Can a routing table in a datagram network have two entries with the same destination address?
In a datagram network, the destination addresses are unique. They cannot be duplicated in the routing table.
What network device contains a table of all locally connected networks?
It's a router NOT a nic
Which type of network device keeps a table of the MAC addresses of the devices connected to it?
The correct answer is switch.
Memory segmentation in operating system?
Segmentation is a Memory Management technique in which memory is divided into variable sized chunks which can be allocated to processes. Each chunk is called a segment. A table stores the information about all such segments and is called Global Descriptor Table (GDT). A GDT entry is called Global Descriptor. It comprise of :To translate a logical address into a linear address, the processor does the following: # Uses the offset in the segment selector to locate the segment descriptor for the segment in the GDT or LDT and reads it into the processor. (This step is needed only when a new segment selector is loaded into a segment register.) # Examines the segment descriptor to check the access rights and range of the segment to insure that the segment is accessible and that the offset is within the limits of the segment. # Adds the base address of the segment from the segment descriptor to the offset to form a linear address. If paging is not used, the processor maps the linear address directly to a physical address (that is, the linear address goes out on the processor's address bus). If the linear address space is paged, a second level of address translation is used to translate the linear address into a physical address.A segment selector is a 16-bit identifier for a segment. It does not point directly to the segment, but instead points to the segment descriptor that defines the segment. A segment selector contains the following items: ; Index ; : (Bits 3 through 15). Selects one of 8192 descriptors in the GDT or LDT. The processor multiplies the index value by 8 (the number of bytes in a segment descriptor) and adds the result to the base address of the GDT or LDT (from the GDTR or LDTR register, respectively). ; ;TI (table indicator) flag ; : (Bit 2). Specifies the descriptor table to use: clearing this flag selects the GDT; setting this flag selects the current LDT. ;
What address does the router use to compare to the routing table?
in general the router uses the network address to compare to the routing table. Specifically, on the internet, the Router looks up the destination IP address in the router table to determine where to route the packet.
