CSCi 434 please help thank you

Question 4 (1 point) is the rate at which bits are transferred between two end systems. 1) Bandwidth 2) Throughput 3) Delay 4) Link capacity Question 5 (1 point) A(n) is a cluster of routers in the ISP's network that provides the connectivity to other ISPs. 1) peer link 2) high end server 3) point of presence (POP) 4) content provider network Question 6 (1 point) Consider link capacities of N links (R1, ..., Rn} between two end systems. What is the definition of bottleneck link? 1) min(R1, ..., RN) 2) max(R1, ..., RN) 3) mean(R1, RN) 4) sum(Rq...., RN Question 7 (1 point) Which of the following physical media can be classified into unguided media? 1) 3G 2) Twisted pairs 3) Fiber optics 4) All of the above