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【单选题】
自动喷水灭火系统是一种固定自动灭火系统，它具有()A.
自动灭火
B.
自动报警
C.
自动灭火和自动报警
D.
以上都不对
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反馈参考答案：
举一反三
【单选题】You are asked to change the cable on intece fe-4/2/3.Which statement is correct?（）
A.
The cable is found on port 4, FPC 2, and slot 3.
B.
The cable is found on slot 2, port 3, and FPC 4.
C.
The cable is found on FPC 4, slot 3, and port 2.
D.
The cable is found on slot 2, FPC 3, and port 4.
【单选题】You are asked to change the cable on intece ge-2/1/3.Which statement is correct?（）
A.
The cable is found on FPC 1, slot 3, and port 2.
B.
The cable is found on slot 1, port 2, and FPC 3.
C.
The cable is found on port 3, FPC 2, and slot 1.
D.
The cable is found on FPC 1, slot 2, and port 3.
【单选题】Which statement about an estimated position is TRUE?
A.
It is usually based on soundings.
B.
It is more reliable than a fix based on radar bearing.
C.
When a 3-LOP fix plots in a the center of the is the estimated position
D.
It may be based on a single LOP or questionable data.
【简答题】所谓恶性病毒，即该病毒发作时将破坏数据，删除文件或使系统处于瘫痪状态等。（ ）
【单选题】You are the Cisco Network Designer in Cisco.com. Which statement is correct regarding NBAR and NetFlow?（）
A.
NBAR examines data in Layers 1 and 4.
B.
NBAR examines data in Layers 3 and 4.
C.
NetFlow examines data in Layers 3 and 4.
D.
NBAR examines data in Layers 2 through 4.
【单选题】Which statement about computers does Jay probably agree with?
A.
Computers are disposable.
B.
Laptop computers are more convenient.
C.
Laptops are better than desktops.
D.
Old computers are more reliable than new ones.
【单选题】Refer to the exhibit. Which statement describes DLCI 17?
A.
DLCI 17 describes the ISDN circuit between R2 and R3.
B.
DLCI 17 describes a PVC on R2. It cannot be used on R3 or R1.
C.
DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3.
D.
DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider.
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