Choose the best answer.

1		What layer of the OSI model do routers operate?
			A)	Layer 1
			B)	Layer 2
			C)	Layer 3
			D)	Layer 4
2		How are most of today's routers updated?
			A)	dynamically
			B)	electronically
			C)	manually
			D)	statically
3		What protocol uses port 80 to transfer the data used on web pages?
			A)	FTP
			B)	HTTP
			C)	IMAP
			D)	SMTP
4		How is e-mail sent on computer networks?
			A)	using FTP on ports 20 and 21
			B)	using HTTP on port 80 and HTTPS on port 443
			C)	using POP3 on port 10 or IMAP on port 143
			D)	using SMTP on port 25
5		What protocol is commonly used to download special hardware driver files from manufacturers' websites?
			A)	BGP
			B)	FTP
			C)	OSPF
			D)	RIP
6		How is e-mail received on computer networks?
			A)	using FTP on ports 20 and 21
			B)	using HTTP on port 80 and HTTPS on port 443
			C)	using POP3 on port 10 or IMAP on port 143
			D)	using SMTP on port 25
7		What protocol will allow a user to log onto a remote computer as if they were directly logged onto that computer?
			A)	BGP
			B)	SMTP
			C)	SNMP
			D)	Telnet
8		What protocol is used when data is sent encrypted to a website using public and private keys?
			A)	FTP
			B)	HTTP
			C)	HTTPS
			D)	SNMP
9		What does NAT perform for a company network?
			A)	allows e-mail to be stored
			B)	allows for secure web transactions
			C)	allows many computers to use one external IP address
			D)	allows one computer to use many external IP addresses
10		Which one of the following is not an improvement of a Proxy server over NAT?
			A)	allowing faster printer throughput
			B)	blocking a certain type of web traffic
			C)	blocking certain sites
			D)	logging sites visited