2 The old human telephone switches were quaint but very slow

2. The old human telephone “switches” were quaint but very slow. You would signal the operator and say you wanted to speak to Jill, but the operator knowing that Jill was visiting Sally, would connect you there. Other than slowness and inefficiency, name two disadvantages of this scheme.

Solution

The disadvantage of old telephone switching schene are like the absence of end to end encryption which discloses the message directly if man in the middle like attacks are done .. moreover it also causes time delay...there is no confidentiality of user call log because he has to inform the human operator