The Five-Layer Network Model

Question 7 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?

64

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?

Calculates a checksum and compares this checksum with the one in the Ethernet frame header

Which layer constructs the Ethernet frame?

Data link Layer

Question 2 What information is computer 1 looking at in the ARP table on Router Y?

MAC address

Question 1 Computer 1 on network B, with IP address of 192.168.1.233, wants to send a packet to Computer 2, with IP address of 10.1.1.205. On which network is computer 2? 0 / 1 point

NOT Network C

Computer 1 on Network A sends a packet to Computer 2 on Network C. What's the second step that Router Z does after receiving the Ethernet frame?

NOT!! : Calculates a checksum and compares this checksum with the one in the Ethernet frame header

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 192.168.1.14. Taking in consideration that computer 1 is sending a request to a web server on computer 2, listening on port 80, and the source port on computer 1 is 5000, which of the following contains the correct information for the fourth TCP segment of data?

NOT: Source Port: 8081 Destination Port: 50 Sequence Number: 4 Acknowledgment Number: 1

Computer 1 on network A, with IP address of 10.1.1.8, wants to send a packet to Computer 2, with IP address of 172.16.1.64. If the TTL value was set to 64 at the beginning, what is the value of the TTL once it reaches its destination?

NOT: 65

Question 2 For what purpose would computer 1 send a FF:FF:FF:FF:FF broadcast ARP message to all nodes on network A?

NOT: To obtain Computer 2 MAC address

Question 3 Which layer constructs the IP datagram?

Network Layer

When constructing the Ethernet datagram to send the packet from Router Y to Router Z, what information needs to be in the destination MAC address?

Router Z's MAC address

When constructing the Ethernet datagram to send the packet from computer 1 to its gateway (Router Y), what information needs to be in the destination MAC address?

Router's Y's MAC address

Computer 1 on network A, with IP address of 10.1.1.8, wants to send a packet to Computer 2, with IP address of 10.1.1.205. Taking in consideration that computer 1 is sending a FTP request to computer 2, and the source port on computer 1 is 21086, which of the following contains the correct information for the first TCP segment of data?

Source Port: 21086 Destination Port: 21 Sequence Number: 1 Acknowledgment Number: 2

What information is in the data payload for the IP datagram?

TCP Segment

Question 4 What information is in the payload section of the TCP segments?

The Application Layer Data

Computer 1 on network B, with IP address of 192.168.1.121, wants to send a packet to Computer 2, with IP address of 172.16.1.57. Which of the following has the correct IP datagram information for the fields: Version, minimum Header Length, Source IP, and Destination IP?

Version: 4 Header Length: 20 Source IP Address: 192.168.1.121 Destination IP address: 172.16.1.57

Computer 1 on network B, with IP address of 192.168.1.233, wants to send a packet to Computer 2, with IP address of 172.16.1.133. Which of the following has the correct IP datagram information for the fields: Version, minimum Header Length, Source IP, and Destination IP?

Version: 4 Header Length: 20 Source IP Address: 192.168.233 Destination IP address: 172.16.1.133

When referring to RJ45, we are referring to _________.

cable plug