Networking Basics

Where is a hub specified in the OSI model?

A:

Session layer

B:

Physical layer

C:

Data Link layer

D:

Application layer

Answer: B

Hubs regenerate electrical signals, which are specified at the Physical layer.

📖

Which command is used to determine if an IP access list is enabled on a particular interface?

A:

show access-lists

B:

show interface

C:

show ip interface

D:

show interface access-lists

Answer: C

The show ip interface command will show you if any outbound or inbound interfaces have an access list set.

📖

Which protocol does DHCP use at the Transport layer?

A:

IP

B:

TCP

C:

UDP

D:

ARP

Answer: C

User Datagram Protocol is a connection network service at the Transport layer, and DHCP uses this connectionless service.

📖

Which of the following commands will allow you to set your Telnet password on a Cisco router?

A:

line telnet 0 4

B:

line aux 0 4

C:

line vty 0 4

D:

line con 0

Answer: C

The command line vty 0 4 places you in a prompt that will allow you to set or change your Telnet password.

📖

What protocol does PPP use to identify the Network layer protocol?

A:

NCP

B:

ISDN

C:

HDLC

D:

LCP

Answer: A

Network Control Protocol is used to help identify the Network layer protocol used in the packet.

📖

Questions for: Networking Basics