【单选题】WHAT IS TRUE CONCERNING PHYSICAL AND LOGICAL TOPOLOGIES?
A.
Logical topologies refer to how a network transfers data between devices.
B.
Physical topologies display the IP addressing scheme of each network.
C.
The logical topology is always the same as the physical topology.
D.
Physical topologies are concerned with how a network transfers frames.
【判断题】絮凝剂是一种能溶于水的高分子聚合物,具有长链状结构,其链节上含有许多活性官能团。
【单选题】Which statement is true about logical units?()
A.
Logical units are similar to VLANs used by other vendors.
B.
A logical unit is required for transit interfaces.
C.
Frame Relay encapsulation supports one logical unit.
D.
Link speed and duplex are configured in the logical unit properties.
【单选题】Which attribute of a logical volume can NOT be changed after it is created?()
A.
The placement of the logical volume
B.
The stripe size of the logical volume
C.
The upper bound of the logical volume
D.
The intra-policy of the logical volume
【简答题】A.lawful B.historical C.natural D.logical
【单选题】Give the logical variables X=Y=1, the value of X ∨ Y(logical addition) is( ).