The Network Layer – Shuffle Q/A 1

28. Which IP address is Class C?

  • 128.42.39.72
  • 172.38.14.72
  • 224.24.45.69
  • 192.37.48.98

29. When describing blocks of IP addresses, what does CIDR do?

  • Interpolates data across multiple servers
  • Calls back to the source router for confirmation
  • Uses subnet masks to demarcate networks.
  • Encrypts the header data

30. What protocol communicates data between routers representing the edges of autonomous systems?

  • Distance-vector
  • Link state
  • Interior gateway
  • Exterior gateway

31. Which of the following IP address ranges have been defined as non-routable address space? Select all that apply.

  • 192.168.0.0/16
  • 172.16.0.0/12
  • 255.255.255.0/1
  • 10.0.0.0/8

32. In a datagram, what does the flag field indicate?

  • If a datagram should be scanned for viruses
  • If a datagram has degraded and become unusable
  • If a datagram is high or low priority
  • If a datagram is allowed to or has already been fragmented

33. A router is performing basic routing functions. What is the second step in the transmission of a packet?

  • A router receives a packet of data.
  • The router examines the destination IP of this packet.
  • Check the routing table.
  • Sent an ARP response.

34. Ranges of IP addresses anyone can use for their internal networks are known as ______.

  • MAC address
  • Non-routable address space
  • Subnet mask
  • IP address

35. Which of the following is a valid IP address?

  • 598.36.789
  • 126.396.659.100
  • 128.42.64.78
  • A8:97:4F:6D:H6:0F

36. A single octet in an IP address represents what range of decimal numbers?

  • 0-255
  • 0-250
  • 1-255
  • 0-155

37. A router is performing basic routing functions. What is the third step in the transmission of a packet?

  • The router looks up the destination network in its routing table.
  • The router forwards the packet.
  • The router examines the destination IP.
  • A router receives a packet of data.

Shuffle Q/A 2

38. Generally, what are Class E IP addresses used for?

  • CIDR
  • Multicasting
  • Broadcasting
  • Testing

39. Why do entries in a local Address Resolution Protocol (ARP) table expire after a short amount of time?

  • To keep space in the table
  • It will use too much memory
  • It only needs to be used one time
  • To account for network changes

Devendra Kumar

Project Management Apprentice at Google

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