GIAC GSNA Exam With Confidence Using Practice Dumps

Secure Sockets Layer (SSL) is a protocol used to transmit private documents via the Internet. SSL uses a combination of public key and symmetric encryption to provide communication privacy, authentication, and message integrity. Using the SSL protocol, clients and servers can communicate in a way that prevents eavesdropping and tampering of data on the Internet. Many Web sites use the SSL protocol to obtain confidential user information, such as credit card numbers. By convention, URLs that require an SSL connection start with https: instead of http:. By default, SSL uses port 443 for secured communication. For a SSL connection between a Web browser and Web server, you must enter https, for example, " ", instead of http as the protocol type in the URL. This will instruct the Web browser to use a different port for communication. SSL uses TCP port 443 for communication.

In Unix, the hdparm command is used to get or set hard disk geometry parameters, cylinders, heads, and sectors. Answer: C is incorrect. In Unix, the mkfs command initializes a Unix filesystem. This is a front end that runs a separate program depending on the filesystem's type. Answer: A is incorrect. In Unix, the mke2fs command creates a Unix second extended filesystem. Answer: B is incorrect. In Unix, the mkswap command sets up a Unix swap area on a device or file.

Switches differ from hubs in that they break up Collision Domains. Each port on a switch equals one Collision Domain. Therefore, a switch will lower the number of collisions within the infrastructure. Managed switches typically offer the ability to create Virtual LANs. Virtual LANs allow the switch to create multiple LANs/network segments that are Virtual. This allows the switch to create additional environments where needed.