FREE AND STUDY GAMES ABOUT CISCO EXAM

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FREE AND STUDY GAMES ABOUT CISCO EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -80 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: dynamic ARP inspection (DAI)

Answer:

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

Answer:

It forwards the frame out of all ports excepts for the port at which the frame was received

Topic 9.2.0 - A Layer 2 switch determines how to handle incoming frames by using its MAC address table. When an incoming frame contains a destination MAC address that is not in the table, the switch forwards the frame out all ports, except for the port on which it was received.Question 3: Which router component holds the routing table, ARP cache, and running configuration file?

Answer:

Ram

Topic 9.2.0 - The routing table, ARP cache, and running configuration file are stored in volatile RAM.

Question 4: How does the sending host know the IPv4 address?

Answer:

are either known or resolved by device name Question 5: 2. Which two ICMPv6 messages are used in to determine the MAC address of a known IPv6 address?

Answer:

• The two ICMPv6 messages used in determining the MAC address of a known IPv6 address are the

neighbor solicitation and the neighbor advertisement.Question 6: If the destination IP address is on the same network, the destination MAC address will be that of the ?

Answer:

Destination device Question 7: How does the Neighbor Discovery process differ when a destination host is on the same LAN and when it is on a remote LAN?

Answer:

When a destination host is on the same LAN segment only the device that matches the IPv6 address responds and other devices drop the packet. When the device is remote the gateway device (usually a router) provides the MAC address of the interface on the local interface for the destination MAC and then searches for the MAC address on the remote network. The router will then place the responding IPv6/MAC address pair in the IPv6 Neighbor table. (similar to an ARP table in IPv4)

Question 8: show ip arp

Answer:

command is used to display the ARP table Question 9: 3. To what type of address are ICMPv6 neighbor solicitation messages sent?

Answer:

• ICMPv6 neighbor solicitation messages are sent as a multicast.

Question 10: What type of information is contained in an ARP table?

Answer:

IPv4 address to MAC Address Maping

Topic 9.2.0 - ARP tables are used to store mappings of IPv4 addresses to MAC addresses. When a network device needs to forward a packet, the device knows only the IPv4 address. To deliver the

packet on an Ethernet network, a MAC address is needed. ARP resolves the MAC address and stores it in an ARP table.Question 11: Which action is taken by a Layer 2 switch when it receives a Layer 2 broadcast frame?

Answer:

It sends the fame to all ports except the port on winch it received the frame

Topic 9.2.0 - When a Layer 2 switch receives a frame with a broadcast destination address, it floods the frame to all ports except the port on which it received the frame.

Question 12: What happens if there are no responses to an ARP request

Answer:

the packet is dropped because a frame cannot be created.Question 13: When the destination IP address (IPv4 or IPv6) is on a remote network, the destination MAC address will be the address of the

Answer:

Host default gateway (router interface)

Question 14: What was the highest OSI layer that the Hub and Access Point used?

Answer:

Layer 1 Question 15: Do the wireless Access Point do anything with the information given to it?

Answer:

Yes. It repackaged it as wireless 802.11 frames.

Question 16: SLAAC

Answer:

Stateless Address Auto-configuration for dynamic address allocation Question 17: How does a router help to minimize the amount of IPv6 Neighbor Discovery traffic on a network?

Answer:

The router keeps neighbor tables so that it doesn't need to initiate ND for every destination host.

Question 18: What header information is in the ARP Message ethernet frame.

Answer:

? Destination MAC address - This is a broadcast address FF-FF-FF-FF-FF-FF requiring all Ethernet NICs on the LAN to accept and process the ARP request.? Source MAC address - This is MAC address of the sender of the ARP request.? Type - ARP messages have a type field of 0x806. This informs the receiving NIC that the data portion of the frame needs to be passed to the ARP process.

Question 19: What device will receive the reply of an ARP request.

Answer:

Only the device that originally sent the ARP request will receive the unicast ARP reply.

Question 20: What addresses are mapped by ARP?

Answer:

IPv4 address to a destination MAC address

Topic 9.2.0 - ARP, or the Address Resolution Protocol, works by mapping the IPv4 address to a destination MAC address. The host knows the destination IPv4 address and uses ARP to resolve the corresponding destination MAC address.

Question 21: ow does the sending host know the MAC address on IPv4?

Answer:

Must be discovered with ARP

Question 22: Where is the IPv4 address of the default gateway stored

Answer:

In the configuration of the hosts Question 23: What is sent when a device needs to determine the MAC address that is associated with an IPv4 address, and it does not have an entry for the IPv4 address in its ARP table.

Answer:

An ARP request