Mark works as a Network Administrator for NetTech Inc. The company has a Windows 2003 domain-based network. The company has two offices in different cities. The offices are connected through the Internet. Both offices have a Windows 2003 server named SERV1 and SERV2 respectively. Mark is required to create a secure connection between both offices. He configures a VPN connection between the offices using the two servers. He uses L2TP for VPN and also configures an IPSec tunnel. Which of the following will he achieve with this configuration? Each correct answer represents a part of the solution. Choose two.

When designing wireless networks, one strategy to consider is implementing security mechanisms at all layers of the OSI model. Which of the following protection mechanisms would protect layer 1?

The Linux command to make the /etc/shadow file, already owned by root, readable only by root is which of the following?

Which of the following protocols implements VPN using IPSec?

You are examining an IP packet with a header of 40 bytes in length and the value at byte 0 of the packet header is 6. Which of the following describes this packet?