单项选择题

Which of the following is the functional description of a server connected between two separate IP subnets？（）

A. server as a bridge
B. server as a router
C. server as a switch
D. server as a data link

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单项选择题

Click the Exhibit button.
From a local machine， connectivity with a server named server1.comptia.org is checked. It cannot be reached， but it can be accessed via the IP address.
Which of the following is the MOST common cause of this error？（）

A. The server is down.
B. The DNS server is down.
C. The local DNS cache is full.
D. The local DNS client is stopped.
E. The local DNS cache is corrupted.

多项选择题

Which three should be documented after upgrading a SCSI RAID controller？（）

A. disk utilization
B. installation date
C. adapter baselines
D. location slot of the RAID controller
E. status of the adapter card installation
F. RAID controller information （warranty， specifications etc.）