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NCTI 3 to 4 100% SOLUTION 2023//2024
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NCTI 3 to 4 100% SOLUTION 2023//2024 The Open Systems Interconnection reference model (OSI/RM) Network Layer serves which primary purpose? - ANSWER It uses Layer 3 addresses to create multiple routed networks. The address 68.56.189.17 belongs to which Internet protocol (IP) class? - ANSWER ...

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  • May 24, 2023
  • 10
  • 2022/2023
  • Exam (elaborations)
  • Questions & answers

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  • ncti 3
  • ncti 3 to 4 100 solution 20232024
  • ncti
  • the open systems interconnection reference model osirm network layer serves which primary purpose answer it uses layer 3 addresses to create mu

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NCTI 3 to 4 100%
SOLUTION 2023//2024
The Open Systems Interconnection reference model (OSI/RM) Network Layer serves
which primary purpose? - ANSWER It uses Layer 3 addresses to create multiple routed
networks.

The address 68.56.189.17 belongs to which Internet protocol (IP) class? - ANSWER
Class A

What happens to a datagram sent by a higher level protocol to a 127.x.y.z address? -
ANSWER The datagram loops back inside the host and never leaves the network
interface card (NIC).

Which device evaluates and acts upon a packet's Internet protocol (IP) address? -
ANSWER Router.

The Network Layer must do what to a received frame first, in order to determine the
route over which it will forward the datagram to the next network? - ANSWER
Decapsulate the packet.

What network information can be determined from a logical Internet protocol (IP)
address? - ANSWER The host portion and network portion.

The physical address of a device is processed by which layer of the Open Systems
Interconnection reference model (OSI/RM)? - ANSWER The Data Link Layer.

Which layer of the Open Systems Interconnection reference model (OSI/RM) would you
suspect as being the problem when packets are arriving at the server but no information
is being returned to the client? - ANSWER The Transport Layer.

All computers running on the transmission control protocol/Internet protocol (TCP/IP)
suite have which of the following in common? - ANSWER Each computer is assigned
its own Internet protocol (IP) address.

, A repeater operates at which layer of the Open Systems Interconnection reference
model (OSI/RM)? - ANSWER The Physical Layer.

Which one of the following protocols allows email clients to download their messages
from an email server? - ANSWER Post Office Protocol version 3 (POP3).

Hypertext transfer protocol (HTTP) is what type of protocol? - ANSWER Stateless.

On the file transfer protocol (FTP) server, what manages client requests for file retrieval
or transmission? - ANSWER A daemon.

What are the primary requirements to connect to a transmission control protocol/Internet
protocol (TCP/IP) network? - ANSWER Unique pairs of Network Layer and Transport
Layer addresses and use of the TCP/IP protocol suite.

What type of delivery method uses an email server between the sender and the receiver
of messages? - ANSWER Store-and-forward.

Host names and uniform resource locators (URL) are resolved to Internet protocol (IP)
addresses by which of the following applications? - ANSWER Domain Name System
(DNS).

What happens when the browser application finishes downloading the files necessary to
display a web page? - ANSWER The browser and server drop the connections, and the
browser maintains the page and its elements in local memory.

Which email protocol enables the messages to be viewed without first downloading
them from the email server? - ANSWER Internet Message Access Protocol version 4
(IMAP4).

What type of server maintains an access log to assist with troubleshooting and tracking
down malicious users? - ANSWER A file transfer protocol (FTP) server.

A store-and-forward email system will not deliver messages until: - ANSWER The host
requests the information.

What is the binary equivalent of decimal 136? - ANSWER 10001000.

Convert the Internet protocol (IP) address 172.68.10.2 from decimal to binary: -
ANSWER 10101100.01000100.00001010.00000010.

Convert the binary Internet protocol (IP) address
01110011.11001000.00101100.00000010 to decimal: - ANSWER 115.200.44.2.

Which is the result of ANDing the Internet protocol (IP) address 23.176.224.18 with the
subnet mask 255.224.0.0? - ANSWER 23.160.0.0.

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