Luyện thi THPT QG 2018
Remote ISDN Site not Answering
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Remote ISDN Site not Answering
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The London network administrator informs you that there is no WAN connectivity. ISDN connectivity has been lost between London and San Jose. After some investigation you contact the San Jose administrator. Based on logs maintained in San Jose, there has not been a successful ISDN session since yesterday when a security audit was performed. Though International Travel Agency (ITA) does not rely on sensitive “topsecret” information, the database of customer information has to be kept confidential. Also, the integrity of the reservation systems is mission-critical. Partners and customers need access to information, but the ability to modify information must be restricted and monitored....
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