A server administrator suspects that an unauthorized email relay agent is running on a web server. The web server has a hostname of web1.example.com and an IP address of 199.90.89.51. Which of the following commands should the server administrator execute to verify these suspicions?

A. telnet web1.example.com 25
B. telnet web1.example.com 23
C. telnet 199.90.89.51
D. telnet 199.90.89.51 80

Answer: A. telnet web1.example.com 25

Computer Science & Information Technology

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Assume a schema for the following set of relations :

Shelves(Sid, Size) with primary key Sid
Items(Iid, Man, Name, Space, Cost, Price) with primary key Iid
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________ are frequently shown in a functional dependency diagram

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Good techs bring essential software tools to every troubleshooting scenario. Name two types of tasks performed by software in a troubleshooting situation.

What will be an ideal response?

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