The fraction L.a/R ~ 0 (i.e., L.a/R is approaching 0) shows that there will be more queuing delay. Where L represents the packet size, a is the packet arrival rate, and R is the transmission rate. 

There is no need to allocate end-to-end resources between source and destination in circuit switching.

Packet switching is not suitable for bursty traffic.

Residential, institutional, and mobile networks are examples of access networks.

The Internet is a network of networks.

In Frequency Division Multiplexing (FDM), a single user can use the whole channel for a specific period.

Packet loss can occur if the network buffer overflows.