You are introducing a co-worker to the security systems in place in your organization. During the
discussion you begin talking about the network, and how it is implemented. You decide to run a
packet capture to identify different aspects of network traffic for your co-worker. In the packet
capture you are able to identify Protocol IDs. What is the IP protocol ID for TCP?

The three-way handshake utilizes three steps, identified as: Step 1, 2 and 3, that take place
between a client and a server in order to establish a TCP connection.

In Step 2 of a normal three-way handshake, the server is said to be performing:

A significant function of TCP is the ability to guarantee session information. The method used by
TCP to guarantee the uniqueness of a session between two hosts is which of the following?

You are capturing network traffic in Wireshark, for in-depth analysis. When looking at a TCP
Header, what is the function of the first sixteen bits?

Your office branch has been assigned the network address of 10.10.0.0/16 by the Corporate HQ.
Presently your network addressing scheme has these addresses split into eight networks as
shown below:

1: 10.10.0.0/19
2: 10.10.32.0/19
3: 10.10.64.0/19
4: 10.10.96.0/19
5: 10.10.128.0/19
6: 10.10.160.0/19
7: 10.10.192.0/19
8: 10.10.224.0/19
You need to take the currently unused block of network 10.10.160.0/19 and further divide it into
eight networks for use by a satellite branch that is being designed on the fourth floor of your
building. What will the new subnet mask be for these new networks?

During a network capture in Network Monitor, you capture some UDP traffic. In a UDP Header,
what is the function of the first sixteen bits?

During a network capture in Wireshark, you capture some IP traffic. In the IP Datagram, what is
the function of the Protocol field?

You are configuring the IP addressing for your network. One of the subnets has been defined with
addresses already. You run ifconfig on a host and determine that it has an address of
172.18.32.54 with a mask of 255.255.254.0. What is the network ID to which this host belongs?

As you increase the layers of security in your organization you watch the network behavior closely.
What kind of problems can be introduced by adding file encryption to the computers in your
network?

The following exhibit is a screen shot of a capture using Network Monitor. Examine the details as
shown for a frame and identify which of the statements that follow best describes it.