$1.$ Which of this is not a network edge device?a$)$ PCb$)$ Smartphonesc$)$ Routerd$)$ Serverse$)$ Printer$2.$ Internet works ona$)$ Circuit switchingb$)$ Free ISPc$)$ Packet switchingd$)$ FTP protocole$)$ a and b are correct$3.$ A set of rules that governs data communicationa$)$ Standardsb$)$ Protocolsc$)$ RFCsd$)$ Applicationse$)$ Physical Layer$4.$ IEEE has defined the specifications for a wireless LAN, called $\_\_\_\_\_\_\_,$ which covers the physical and datalink layers.a$)$ IEEE $802\mathrm{.}11$b$)$ IEEE $802\mathrm{.}5$c$)$ IEEE $802\mathrm{.}3$d$)$ IEEE $802\mathrm{.}2$e$)$ IEEE $802\mathrm{.}165.$ ISP exchanges internet traffic between their networks bya$)$ Access pointb$)$ subscriber end pointc$)$ ISP end pointd$)$ Ethernet pointe$)$ Internet Exchange Point$6.$ To join the internet, the computer has to be connected to aa$)$ Internet architecture boardb$)$ Internet societyc$)$ Digital subscriber lined$)$ Internet protocole$)$ Internet service provider$7.$ Determining the best path from the source to the destination called:a$)$ Forwardingb$)$ Storingc$)$ Cachingd$)$ Routinge$)$ Switching$8.$ When routers are very busy, and their queues are also full, they simply drop incoming packets this is anexample of $\_\_\_.$a$)$ Receiver feedbackb$)$ Retransmissionc$)$ Errord$)$ Packet losse$)$ Message Delay