Answer:
(B) It allows an attacker to redirect targets to malicious webserver.
(D) It affects any clients querying the poisoned DNS server.
Explanation:
DNS cache poisoning is a serious type of attack that is designed to exploit the vulnerabilities inherent in a Domain Name Server (DNS) where a user is redirected from a real server to a fake one. It is also called DNS spoofing.
Normally, when your browser tries to visits a website through a given domain name, it goes through the DNS server. A DNS server maintains a list of domain names and their equivalent Internet Protocol addresses. This server (DNS) then responds to the request with one or more IP addresses for the browser to reach the website through the domain name.
The computer browser then get to the intended website through the IP address.
Now, if the DNS cache is poisoned, then it has a wrong entry for IP addresses. This might be via hacking or a physical access to the DNS server to modify the stored information on it. Therefore, rather than responding with the real IP address, the DNS replies with a wrong IP address which then redirects the user to an unreal website.
Although they might not be able to control your computer remotely as long as you are not trying to visit a web page via the poisoned information, there are other dangers attached to this type of attack.
Once the DNS server has been poisoned, any client trying to query the server will also be affected since there is no direct way of knowing if the information received from the server is actually correct.
the numbers are the size of the letters you type. the ab with the line through it is for marking stuff off of like a list or something. and the one all the way on the right I can't see good enough to tell what it is.
Answer:
Option D: NOW
Explanation:
In Microsoft Excel, NOW function can be used to return a serial number that corresponds to the system date and time beginning with December 31, 1899.
The NOW function is useful when a date and time is required for calculation or display. The value will be updated each time we open the Excel worksheet. To use the NOW function, we can type in the formula as follows:
<em>=NOW() </em>
If you mean glue, then heres a list of what I can remember.
1.<span>Epoxy resins
2.</span><span>.Acrylic resin.
3. polyester resin</span>
Answer:
The answer is "number of the column containing the return value".
Explanation:
In Excel, the "VLOOKUP" method is used to perform the vertical search by looking for both the value during the user table and retrieving the number of the index number location in the same row. It is a built-in function, which is classified as a Lookup or Reference worksheet function, and the following function can be defined as follows:
- In the 1st parameter, it is used to watch the value for the match.
- In the 2nd parameter, it is used to search the table.
- In the 3rd parameter, it is used as the column number representing the return value.
- In the 4th parameter, it is used to return only if the same match is found.
