Which of the following statements best describes where a border router is normally placed?

Wired Equivalent Privacy (WEP) is a security protocol for wireless local area networks (WLANs). It has two components, authentication and encryption. It provides security equivalent to wired networks for wireless networks. WEP encrypts data on a wireless network by using a fixed secret key. Which of the following statements are true about WEP? Each correct answer represents a complete solution. Choose all that apply.

What is the function of the TTL (Time to Live) field in IPv4 and the Hop Limit field in IPv6 In an IP Packet header?

Your customer wants to make sure that only computers he has authorized can get on his Wi-Fi. What is the most appropriate security measure you can recommend?

You have implemented a firewall on the company's network for blocking unauthorized network connections.
Which of the following types of security control is implemented in this case?