Questions

  1. Which of the following are firewall types?
    1. Packet filtering firewall
    2.  Application-layer gateway
    3. Screen Host Firewall
    4. All of the mentioned
  1. An application proxy firewall filters at:
    1. Physical layer 1
    2. Data link layer 2
    3. Network layer 3
    4. Application layer 7
  2. This 8-bit value identifies the maximum time the packet can remain in the system before it is dropped:
    1. Fragment
    2. Time to live
    3. Protocol
    4. Checksum

Get Practical Network Scanning now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial