The Five-Layer Network Model – Shuffle Q/A 1

56. 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

  • Version: 5

    Header Length: 16

    Source IP Address: 10.1.1.0/24.

    Destination IP address: 172.16.1.0/24.

  • Version: 4

    Header Length: 32

    Source IP Address: 10.1.1.1

    Destination IP address:172.16.1.1

  • Version: 6

    Header Length: 20

    Source IP Address: 8a:1a:2b:3c:4d:5f

    Destination IP address: 2a:2b:3c:4d:8f

57. The Cat6 cable is part of the ______ layer.

  • Transport
  • Application
  • Physical
  • Network

58. What information is computer 1 looking at in the ARP table on Router Y?

  • Destination MAC address
  • Port number
  • TTL value
  • MAC address

59. 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?

  • Source Port: 5000

    Destination Port: 80

    Sequence Number: 1

    Acknowledgment Number: 2

  • Source Port: 8081

    Destination Port: 50

    Sequence Number: 4

    Acknowledgment Number: 1

  • Source Port: 5000

    Destination Port: 80

    Sequence Number: 4

    Acknowledgment Number: 5

  • Source Port: 80

    Destination Port: 5000

    Sequence Number: 1

    Acknowledgment Number: 1

60. When constructing the Ethernet datagram to send the packet from Router Z to Computer 2 which is on Network C, what information needs to be in the destination MAC address?

  • Computer 2’s MAC address
  • Router Y’s MAC address
  • Computer 1’s MAC address
  • No MAC address is needed

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

  • Sends back the packages to router Y for confirmation
  • Decrements the TTL by 1, calculates a new checksum, and makes a new IP datagram. This new IP datagram is again encapsulated on a new Ethernet frame.
  • Strips away the Ethernet frame, leaving the IP datagram. Performs a checksum calculation against the entire datagram
  • Calculates a checksum and compares this checksum with the one in the Ethernet frame header

62. 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?

  • 65
  • 60
  • 0
  • 62

63. The ________ layer is responsible for sending ones and zeros through a process called modulation from Computer 1 to Computer 2.

  • Transport
  • Physical
  • Network
  • Application

64. If it’s a TCP connection, which is the first segment that computer 1 needs to build?

  • IP datagram
  • handshake
  • TCP segment
  • Ethernet frame

65. What information is in the payload section of the TCP segments?

  • The application layer data
  • ART Table
  • The MAC address of Computer 1
  • Handshake

Shuffle Q/A 2

Use the following scenario to answer the 10 questions below:

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.

66. Computer 1 on network A, with IP address of 10.1.1.205, wants to send a packet to Computer 2, with IP address of 172.16.1.57. On which network is computer 2?

  • Network A
  • Network B
  • Local network
  • Network C

Devendra Kumar

Project Management Apprentice at Google

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