To increase security on your companys internal network, the administrator has disabled as many ports as possible. Now, though you can browse the internet, you are unable to perform secure credit card transactions.Which port needs to be enabled to allow secure transactions?

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

To increase security on your company’s internal network, the administrator has disabled as many ports as possible. Now, though you can browse the internet, you are unable to perform secure credit card transactions.Which port needs to be enabled to allow secure transactions?

A	69
B	21
C	23
D	80
E	443

Explanation:

Detailed explanation-1: -Which port needs to be enabled to allow secure transactions? EXPLANATION To perform secure transactions, SSL on port 443 needs to be enabled. HTTPS uses port 443 by default.

Detailed explanation-2: -For instance, if you run a mail server and provide your clients POP3 access, and you also run an FTP and Web server, you will want to allow external access to ports 25 (SMTP), 110 (POP3), 20 and 21 (FTP), and 80 (HTTP). If you also have SSL-enabled Web pages, you will want to open port 443 (HTTPS).

Detailed explanation-3: -Which of the following describes how access control lists can be used to improve network security? EXPLANATION An access control list filters traffic based on the IP header information, such as source or destination IP address, protocol, or socket number.

Detailed explanation-4: -A firewall is software or firmware that prevents unauthorized access to a network. It inspects incoming and outgoing traffic using a set of rules to identify and block threats.

There is 1 question to complete.

COMPUTER NETWORKING

NETWORK SECURITY

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