You are the network administrator at Certkiller .com. One morning CEO who is out of town for a business meeting calls to complain that he cannot dial in to the corporate RAS server. The modem on his portable system reports a no dial tone error. What is the MOST probable cause of the problem?
A. The DNS server is down. B. The DHCP server is down. C. The Remote Access server is down. D. The phone line the CEO is using is digital. E. The phone line the CEO is using is faulty.
The phone line the ceo is using is digital.-the modems use an analog phone line. it seems the phone line the ceo is trying is a digital line.incorrect answers:a: a dns server is responsible for host name to ip address resolution. it will not cause a dialup problem.b: a dhcp server is responsible for the automatic ip configuration of dhcp clients. it will not cause a dialup problem.c: a problematic remote access server would prevent the remote user from logging on to the network. however, it will not cause a no dial tone error.e: the phone line cannot be problematic as the ceo has used it to call you.references:david groth and toby skandier, network+ study guide (4th edition), sybex, alamedaca, 2005, pp. 186-188, 194.