problem 1) Which protocol does DHCP use at Transport layer?

A) IP
B) TCP
C) UDP   
D) ARP

problem 2) Which command is used to find out if the IP access list is enabled on particular interface?

A) show access-lists
B) show interface
C) show ip interface
D) show interface access-lists

problem 3) Where is a hub specified in a OSI model?

A) Session layer
B) Physical layer
C) Data Link layer
D) Application layer

problem 4) What does the passive command provide to dynamic routing protocols?

A) Stops a interface from sending or receiving periodic dynamic updates.
B) Stops a interface from sending periodic dynamic updates but not from receiving updates.
C) Stops a router from receiving any dynamic updates.
D) Stops a router from sending any dynamic updates.

problem 5) Which protocol is used to send the destination network unknown message back to originating hosts?

A) TCP
B) ARP
C) ICMP   
D) BootP

problem 6) How often are BPDUs sent from the layer 2 device?

A) Never
B) Every 2 seconds
C) Every 10 minutes
D) Every 30 seconds

problem7)  How many broadcast domains are created when you segment the network with a 12-port switch?

A) 1
B) 2
C) 5
D) 12

problem 8) What does the command routerA(config)#line cons 0 permit you to perform next?

A) Set the Telnet password.
B) Shut down the router.
C) Set your console password.
D) Disable console connections.

problem 9) Which router command permit you to view the whole contents of all access lists?

A) show all access-lists
B) show access-lists
C) show ip interface
D) show interface

problem 10) Which class of IP address has the most host addresses available by default?

A) A
B) B
C) C
D) A and B