Because they control the physical delivery of messages over the network, the lower layers of the OSI model are sometimes referred to as the media layers.

• TRUE

• FALSE

Network layer device that uses one or more metrics to determine the optimal path along which network traffic should be forwarded.

• router

• bridge

• switch

• NIC

Which two statements are true regarding the user EXEC mode? (Choose two.)

• All router commands are available

• Global configuration mode can accessed by entering the enable command

• the device prompt for this mode ends with the ">" symbol

• interfaces and routing protocols can be configured

• Only some aspects of the router configuration can be viewed

Why would a technician enter the command copy startup-config running-config?

• To remove all configurations from the switch

• to make a changed configuration the startup configuration

• to copy the existing configuration into RAM

• to save an active configuration into NVRAM

Which command encrypts all plaintext passwords access on a switch?

• enable secret

• login

• secret

• service password-encryption

Which is the command to configure a banner to be displayed when connecting to a switch?

• banner $ Keep out $

• banner motd $ Keep out $

• display $ Keep out $

• login banner $ Keep out $

What class of IP is the following - 172.16.1.1 ?

• Class A

• Class B

• Class C

What class of IP address is the following - 10.0.0.1

• Class B

• Class C

• Class A

Which of the following commands would activate an interface on a router?

• Enable

• shutdown

• no shutdown

• ip address 192.168.1.1

Is the following a valid IP address that could be allocated to a host on a network - 192.168.1.0

• Yes

• No