A.Line construction expenses

B.Equipment depreciation expenses

C.Line lease expenses

D.Energy expenses

E.Staff expenses

A.TRUE

B.FALSE

A.The client settings are incorrect.

B.The email server is faulty.

C.The link is faulty.

D.The user does not have the required rights.

A.FALSE

B.TRUE

A.To prevent or reduce external network attacks and harm.

B.To ensure that sensitive management information will not be intercepted.

C.To achieve secure user access control.

D.To ensure secure access to key services.