ICND Interconnecting Cisco Networking Devices Part 1

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Question 1 of 724

Which address type does a switch use to make selective forwarding decisions?

Answer

Suggested Answer

The suggested answer is E.

Switches analyze the destination MAC to make its forwarding decision since it is a layer 2 device.
Routers use the destination IP address to make forwarding decisions.
Community Votes1 vote
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Question 2 of 724

In which two ways does TCP differ from UDP? (Choose two.)

Answer

Suggested Answer

The suggested answer is A, C.

TCP differs from UDP primarily in two ways: it provides synchronized communication to ensure that both ends of the connection are in agreement about the state of the communication, and it provides sequence numbering of packets to ensure data is received in the correct order. These features enable reliable, ordered, and error-checked delivery of a stream of packets. UDP, on the other hand, does not offer these reliability features and is used for faster, connectionless communication.

Community Votes1 vote
ABMost voted
100%
Question 3 of 724

Under which circumstance should a network administrator implement one-way NAT?

Answer

Suggested Answer

The suggested answer is B.

One-way NAT is used when traffic that originates outside the network must be routed to internal hosts. This configuration helps manage situations where internal hosts use private IP addresses that are not directly accessible from the internet. By implementing one-way NAT, the network administrator can translate the destination IP address of incoming packets from the outside network to the appropriate internal private IP address, allowing external sources to communicate with internal hosts. This setup is crucial for services that need to be accessed from outside the network, such as web servers or mail servers hosted internally.

Question 4 of 724

Which destination IP address can a host use to send one message to multiple devices across different subnets?

Answer

Suggested Answer

The suggested answer is D.

Multicast is a networking protocol where one host can send a message to a special multicast IP address and one or more network devices can listen for and receive those messages.
Multicast works by taking advantage of the existing IPv4 networking infrastructure, and it does so in something of a weird fashion. As you read, keep in mind that things are a little confusing because multicast was "shoe-horned" in to an existing technology. For the rest of this article, let's use the multicast IP address of
239.255.0.1.
Question 5 of 724

Which option must occur before a workstation can exchange HTTP packets with a web server?

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