NCTI FIELD TECH 2 TO 3 ACTUAL EXAM
PAPER 2026 QUESTIONS AND SOLUTIONS
GRADED A+
◉ 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?
PAPER 2026 QUESTIONS AND SOLUTIONS
GRADED A+
◉ 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?
