Question 8 A router receives a datagram that contains echo request message and decrease the TTL in the header by 1. What does the router do if TTL becomes 0? Sends an echo reply message to the original sender. Sends an ICMP time exceeded message to the original sender Sends an echo reply message to the last router from which the datagram was received. Sends an ICMP time exceeded message to the last router from which the datagram was received. 2 pts Question 9 2 pts
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Computer 1 on Network A sends a packet to Computer 2 on Network C. What's the first step that Router Z does after receiving the Ethernet frame? Sends an ARP broadcast message Checks the destination IP address and changes it to its own Calculates a checksum and compares this checksum with the one in the Ethernet frame header Increases the TTL by one
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You have 3 networks (A, B, and C) and 2 routers (Y and Z). Network A has an address space of 10.1.1.0/24 and is connected to router Y, using the interface 10.1.1.1. Network B has an address space of 192.168.1.0/24 and is connected to Router Y, using the interface 192.168.1.254. Network B is also connected with router Z, using the interface of 192.168.1.1. Network C has an address space of 172.16.1.0/24 and is connected to router Z, using the interface 172.16.1.1. The diagram below represents these connections and interfaces. 1. Computer 1 on network C, with IP address of 172.16.1.57, wants to send a packet to Computer 2, with IP address of 172.16.1.133. If the TTL value was set to 64 at the beginning, what is the value of the TTL once it reaches its destination? 0 65 61 64 2. What information is in the data payload of the Ethernet frame? ART message Network interface Handshake IP datagram
Computer 1 on network C, with IP address of 172.16.1.57, wants to send a packet to Computer 2, with IP address of 172.16.1.133. If the TTL value was set to 64 at the beginning, what is the value of the TTL once it reaches its destination?
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