A.Energy expenses

B.Equipment depreciation expenses

C.Line lease expenses

D.Staff expenses

E.Line construction expenses

A.The mask length of /24 can simplify network design.

B.IPv4 addresses are classified into Classes A, B, and C.

C.Variable length subnet mask (VLSM) is often used for determining mask lengths to improve IP address efficiency.

D.All IP addresses on a network must be unique except when anycast is used.

A.The BPDU tunnel configuration has no impact on MSTP.

B.The port connected to a user device has MSTP disabled or is configured as the edge port.

C.Check whether the interface is added to the correct VLAN.

D.Check the port configuration to verify that the MSTP-enabled port is configured (for example, using the bpdu enable command) to send protocol packets.

A.Snapshot before the migration

B.Check after the migration

C.Delivery during the migration

D.Attendance after the migration

A.Security

B.Scalability

C.Availability

D.Cost-effectiveness