cisco certification example questions

cisco certification example questions.Note: CiscoSenderBase is the world's leading email and web traffic monitoring network, providing real-time threat intelligence from CiscoSlOoThe Cisco ESA can act as the mail gateway for a unit network, handling all mail connections, accepting mail, and forwarding it to the relevant systems. The Cisco ESA can take over mail connections from the Internet to intranet users and from the intranet to the Internet. Mail connections use Simple Mail Transfer Protocol (SMTP) O ESA takes over all SMTP connections and acts as an SMTP gateway by default.Tip: Mail gateways are also called MailExchanger (MX). oCiscoESA uses a listener to handle SMTP connection requests from the outside in. The listener defines a mail processing service (configured on the CiscoESA interface). The listener detects mail flowing into the ESA from the Internet or internal systems.The following various listeners can be configured.Public listener: Used to detect mail originating from the Internet. Private listener: Used to detect mail originating from the unit's intranet host. (This type of mail usually originates from a groupware, Exchange, POP, or IMAP mail server on the intranet.)The CiscoESA listener, commonly known as the SMTP daemon, runs on the specified interface of the CiscoESA. When configuring the listener, the following information is required.Listener properties: for example, the specific interface of the CiscoESA and the TCP port to be used. In addition, it is also necessary toIndicate whether the listener is public or private. Hosts that are allowed to connect to the listener (in conjunction with access control rules): The network administrator can specify which remote2.2 Network Security Systems 139