PROGRESSION: FIELD TECH III - IV CONVENTIONAL(NCTI)
ACTUAL EXAM QUESTIONS AND COMPLETE ANSWERS (A+
GUIDE SOLUTION) NEWEST 2025/2026
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.
COPYRIGHT © 2025 BY OLIVIA GREENWAYS, ALL RIGHTS RESERVED 1
,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 Physical 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 Data Link 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 Transport Layer.
Which Dynamic Host Configuration Protocol (DHCP) network address allocation
mechanism assigns a host a temporary IP address? - ANSWER✔✔-Dynamic
Which two choices are examples of trivial file transfer protocol (TFTP) use? (Choose
two.) - ANSWER✔✔-Download router upgrades. And
Software upgrades to IP telephones.
COPYRIGHT © 2025 BY OLIVIA GREENWAYS, ALL RIGHTS RESERVED 2
,How does the Domain Name System (DNS) resolve fully qualified domain names
(FQDN) to IP addresses? - ANSWER✔✔-By looking up the names in an address
mapping database.
Which TCP/IP application allows us to transfer files either within a browser or at the
command line? - ANSWER✔✔-File transfer protocol (FTP).
Which statement best describes Internet Message Access Protocol (IMAP)? -
ANSWER✔✔-IMAP allows users to scan email headers and choose email messages to
download from the email server.
To resolve fully qualified domain names (FQDN) to binary IP addresses, resolvers
contact which type of TCP/IP application server? - ANSWER✔✔-Domain Name
System (DNS).
Which protocol allows clients to locate and download IP addressing and configuration
information on an automatically renewable (lease) basis? - ANSWER✔✔-Dynamic Host
Configuration Protocol (DHCP).
Which TCP/IP application allows a network user to remotely log on and manipulate a
network device? - ANSWER✔✔-Telnet.
Which three of the following are Dynamic Host Configuration Protocol (DHCP) address
allocation mechanisms? (Choose three.) - ANSWER✔✔-Automatic, Dynamic, Manual
COPYRIGHT © 2025 BY OLIVIA GREENWAYS, ALL RIGHTS RESERVED 3
, Internet email uses which two protocols? (Choose two.) - ANSWER✔✔-Simple Mail
Transfer Protocol (SMTP). And Post Office Protocol version 3 (POP3).
If a Dynamic Host Configuration Protocol (DHCP) client fails to renew its lease at the
50-percent point, what happens next? - ANSWER✔✔-It attempts to obtain a lease at
87.5-percent lease time.
Of the five trivial file transfer protocol (TFTP) packet types, which three choices below
are TFTP packet types? (Choose three.) - ANSWER✔✔-Read request, Write request,
Acknowledgement
If you want to locate a previously saved Uniform Resource Locator (URL) so that you
can quickly return to it as needed, where on the browser toolbar would you look? -
ANSWER✔✔-Favorites
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 memory.
Which best describes why an hypertext transfer protocol (HTTP) server can handle
multiple simultaneous connections? - ANSWER✔✔-HTTP is stateless, which means the
server has no knowledge of previous connections after they are dropped.
For what purpose would you choose to run the Telnet application? - ANSWER✔✔-To
configure a router
COPYRIGHT © 2025 BY OLIVIA GREENWAYS, ALL RIGHTS RESERVED 4
ACTUAL EXAM QUESTIONS AND COMPLETE ANSWERS (A+
GUIDE SOLUTION) NEWEST 2025/2026
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.
COPYRIGHT © 2025 BY OLIVIA GREENWAYS, ALL RIGHTS RESERVED 1
,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 Physical 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 Data Link 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 Transport Layer.
Which Dynamic Host Configuration Protocol (DHCP) network address allocation
mechanism assigns a host a temporary IP address? - ANSWER✔✔-Dynamic
Which two choices are examples of trivial file transfer protocol (TFTP) use? (Choose
two.) - ANSWER✔✔-Download router upgrades. And
Software upgrades to IP telephones.
COPYRIGHT © 2025 BY OLIVIA GREENWAYS, ALL RIGHTS RESERVED 2
,How does the Domain Name System (DNS) resolve fully qualified domain names
(FQDN) to IP addresses? - ANSWER✔✔-By looking up the names in an address
mapping database.
Which TCP/IP application allows us to transfer files either within a browser or at the
command line? - ANSWER✔✔-File transfer protocol (FTP).
Which statement best describes Internet Message Access Protocol (IMAP)? -
ANSWER✔✔-IMAP allows users to scan email headers and choose email messages to
download from the email server.
To resolve fully qualified domain names (FQDN) to binary IP addresses, resolvers
contact which type of TCP/IP application server? - ANSWER✔✔-Domain Name
System (DNS).
Which protocol allows clients to locate and download IP addressing and configuration
information on an automatically renewable (lease) basis? - ANSWER✔✔-Dynamic Host
Configuration Protocol (DHCP).
Which TCP/IP application allows a network user to remotely log on and manipulate a
network device? - ANSWER✔✔-Telnet.
Which three of the following are Dynamic Host Configuration Protocol (DHCP) address
allocation mechanisms? (Choose three.) - ANSWER✔✔-Automatic, Dynamic, Manual
COPYRIGHT © 2025 BY OLIVIA GREENWAYS, ALL RIGHTS RESERVED 3
, Internet email uses which two protocols? (Choose two.) - ANSWER✔✔-Simple Mail
Transfer Protocol (SMTP). And Post Office Protocol version 3 (POP3).
If a Dynamic Host Configuration Protocol (DHCP) client fails to renew its lease at the
50-percent point, what happens next? - ANSWER✔✔-It attempts to obtain a lease at
87.5-percent lease time.
Of the five trivial file transfer protocol (TFTP) packet types, which three choices below
are TFTP packet types? (Choose three.) - ANSWER✔✔-Read request, Write request,
Acknowledgement
If you want to locate a previously saved Uniform Resource Locator (URL) so that you
can quickly return to it as needed, where on the browser toolbar would you look? -
ANSWER✔✔-Favorites
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 memory.
Which best describes why an hypertext transfer protocol (HTTP) server can handle
multiple simultaneous connections? - ANSWER✔✔-HTTP is stateless, which means the
server has no knowledge of previous connections after they are dropped.
For what purpose would you choose to run the Telnet application? - ANSWER✔✔-To
configure a router
COPYRIGHT © 2025 BY OLIVIA GREENWAYS, ALL RIGHTS RESERVED 4
