单项选择题

A technician needs to install the first SCSI controller in an application server. The SCSI card is factory-configured with a SCSI ID of 1. Which SCSI ID should the technician configure the card before installation？（）

A. 0
B. 1
C. 4
D. 7

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单项选择题

Which of the following SCSI signaling systems uses one return line for every outgoing line， is less susceptible to interference， signal degradation， crosstalk， and allows a cable length of up to 25 meters？（）

A. SE （Single Ended）
B. DE （Double Ended）
C. LVD （Low Voltage Differential）
D. HVD （High Voltage Differential）

单项选择题

After upgrading a server motherboard to the latest firmware revision， configuring LAN access in the SSU （System Setup Utility） fails. Which action should be taken FIRST to correct this problem？（）

A. replace the NIC
B. install the latest SSU （System Setup Utility） version
C. upgrade the firmware on the NIC
D. assign the NIC a static IRQ in the SSU （System Setup Utility）

单项选择题

The current data center has run out of space. A room that is located next to the existing data center is then used to house two racks containing six servers. Six months later， physical housekeeping is performed as part of a mid-year maintenance plan. Which environmental condition discovered in the room is LEAST critical？（）

A. There are discolored ceiling tiles near the middle of the room.
B. Large amounts of dust have accumulated in the corners of the room.
C. The anti-static carpet has been removed resulting in a bare painted concrete floor.
D. A wet pipe water-based sprinkler system has been installed above the racks.