Module 9- Cisco Netacad Intro to Networks

Which router component holds the routing table, ARP cache, and running configuration file?

• ROM

• RAM

• Flash

• NVRAM

What type of information is contained in an ARP table?

• IPv4 address to MAC address mappings

• switch ports associated with destination MAC addresses

• domain name to IPv4 address mappings

• routes to reach destination networks

A PC is configured to obtain an IPv4 address automatically from network 192.168.1.0/24. The network administrator issues the arp –a command and notices an entry of 192.168.1.255 ff-ff-ff-ff-ff-ff. Which statement describes this entry?

• This is a dynamic map entry.

• This entry refers to the PC itself.

• This entry maps to the default gateway

• This is a static map entry.

A cybersecurity analyst believes an attacker is spoofing the MAC address of the default gateway to perform a man-in-the-middle attack. Which command should the analyst use to view the MAC address a host is using to reach the default gateway?

• route print

• ipconfig /all

• arp -a

• netstat -r

What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?

• It initiates an ARP request

• It forwards the frame out of all ports except for the port at which the frame was received.

• It broadcasts the frame out of all ports on the switch.

• It notifies the sending host that the frame cannot be delivered.

Which two ICMPv6 messages are used during the Ethernet MAC address resolution process? (Choose two.)

• router advertisement

• neighbor advertisement

• neighbor solicitation

• echo request

• router solicitation

How does the ARP process use an IPv4 address?

• to determine the MAC address of the remote destination host

• to determine the MAC address of a device on the same network

• to determine the network number based on the number of bits in the IPv4 address

• to determine the amount of time a packet takes when traveling from source to destination

What is one function of the ARP protocol?

• resolving an IPv4 address to a MAC address

• maintaining a table of domain names with their resolved IP addresses

• obtaining an IPv4 address automatically

• mapping a domain name to its IP address

Which action is taken by a Layer 2 switch when it receives a Layer 2 broadcast frame?

• It sends the frame to all ports except the port on which it received the frame.

• It sends the frame to all ports.

• It sends the frame to all ports that are registered to forward broadcasts.

• It drops the frame.

What addresses are mapped by ARP?

• destination IPv4 address to the destination host name

• destination MAC address to the source IPv4 address

• destination IPv4 address to the source MAC address

• IPv4 address to a destination MAC address