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Which device connects a computer to an analog data
service provided by the local telephone company?
A. Fax machine
B. V.90 modem
C. ISDN adapter
D. LAN adapter
A user has configured a Windows 9x workstation with
a dial-up SLIP connection to an ISP. The system connects
without a problem; however the user cannot access
What is the first thing you should instruct the user
A. Verify the userID
B. Verify the password
C. Verify the phone number of the ISP
D. Change the protocol from SLIP to PPP
Which connector connects an external transceiver to
Which networking topology requires less hardware and
cabling than other topologies?
Which two communication protocols utilize a vector
distance protocol to maintain routing table information?
Answer: A, C
You have completed a weekly backup of your network
servers. Where should you keep the tapes, for disaster
A. In the CIO's office
B. In the Network administrator's desk
C. In a locked safe at an onsite location
D. In a locked safe at on offsite location
You have a permanent connection to the Internet for
your network. Your local network includes a Web server
and an SMTP server. You are concerned about the threat
of hackers gaining access from the Internet. You have
enforced HTTPS access to your Web server.
After you make this change, your Web server is no
longer accessible from the Internet, but can still
be accessed by your internal network users.
What would you predict is causing this problem?
A. Your DNS server is down.
B. Your Web server address has changed.
C. Your Internet router is blocking port 389.
D. Your Internet router is blocking port 443.
What is the process of changing the configuration
of an A, B, or C network so that it treats the network
and node number differently?
D. Reverse lookup
Which three services does a proxy server provide?
A. Cached e-mail
B. Cached client files
C. Cached web pages
D. Cached DNS information
Answer: A, B, C
Which is a benefit of fault tolerance?
A. The efficient use of network bandwidth
B. The elimination of a single point of failure
C. The ability to restore data after a disk crash
D. The ability to distribute CPU load across multiple