PROGRESSION: FIELD TECH III - IV CONVENTIONAL(NCTI)
ACTUAL COMPLETE REAL EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) A+
GUIDE SOLUTION/2025/2026 NEWEST!!!
What happens if the retransmission timer set by the sending
transmission control protocol (TCP) times out before it receives
an acknowledgment. - ANSWER-It retransmits the outstanding
segments.
How does a transmission control protocol (TCP) process
handle a failed connection? - ANSWER-It sends an RST
segment when the maximum retry count is exceeded.
How does a sending transmission control protocol (TCP)
process handle a zero receive window size? - ANSWER-It
sends periodic probe segments and waits for an ACK with a
nonzero window size.
At which Open Systems Interconnection reference model
(OSI/RM) layer does the physical address reside? - ANSWER-
Data Link
,In TCP/IP, what does a network host use to find a physical
address, given a logical address? - ANSWER-Address
resolution protocol (ARP).
Transmission control protocol (TCP) establishes which type of
circuit between applications? - ANSWER-Virtual
Which three of the following terms refer to a physical address?
(Choose three.) - ANSWER-Media access control (MAC)
address.
Adapter address.
Hardware address.
Which two of the following are examples of local area network
(LAN) logical addresses? (Choose two.) - ANSWER-
201.90.35.78
Port 23
Which Internet protocol (IP) packet fragmentation header field
specifies where the fragment belongs in the original datagram?
- ANSWER-Fragment Offset.
Which is the Internet protocol (IP) header protocol number used
to specify that the packet's contents were created with
transmission control protocol (TCP)? -
,ANSWER-6
What types of processes are located on two computers that
perform approximately the same services? - ANSWER-Peer
Which of the following best describes the function of a media
access control (MAC) layer address? - ANSWER-Identifies the
destination device's physical address
A peer-to-peer network is a practical solution in which of the
following applications? (Choose two.) - ANSWER-Building a
simple network supporting a few clients accessing a shared
printer
Creating an inexpensive solution for a small business just
starting out
What three addresses are needed to move data from one
application to another across a network? - ANSWER-Network
address, network interface card (NIC) address, process address
Encapsulation means that each layer on the sending node does
which of the following? - ANSWER-Adds its protocol header to
the data
, What is the primary purpose of a Transport Layer protocol? -
ANSWER-
Transmit messages from process to process
Which of the following is the lowest layer? - ANSWER-Physical
Layer
Which of the following layers is only concerned with the
physical signals that represent data bits? - ANSWER-Physical
Layer
If segmentation occurs on the sending node, what must occur
on the receiving node? - ANSWER-Reassembly
What is the primary purpose of a Physical Layer protocol? -
ANSWER-Transmit bits across a physical link
What is the primary purpose of a Data Link Layer protocol? –
ANSWER-Transmit frames across a physical link
What is the primary purpose of a Network Layer protocol? -
ANSWER-Transmit packets across a network
Which of the choices below is a Transport Layer protocol? -
ANSWER-User datagram protocol (UDP)
ACTUAL COMPLETE REAL EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) A+
GUIDE SOLUTION/2025/2026 NEWEST!!!
What happens if the retransmission timer set by the sending
transmission control protocol (TCP) times out before it receives
an acknowledgment. - ANSWER-It retransmits the outstanding
segments.
How does a transmission control protocol (TCP) process
handle a failed connection? - ANSWER-It sends an RST
segment when the maximum retry count is exceeded.
How does a sending transmission control protocol (TCP)
process handle a zero receive window size? - ANSWER-It
sends periodic probe segments and waits for an ACK with a
nonzero window size.
At which Open Systems Interconnection reference model
(OSI/RM) layer does the physical address reside? - ANSWER-
Data Link
,In TCP/IP, what does a network host use to find a physical
address, given a logical address? - ANSWER-Address
resolution protocol (ARP).
Transmission control protocol (TCP) establishes which type of
circuit between applications? - ANSWER-Virtual
Which three of the following terms refer to a physical address?
(Choose three.) - ANSWER-Media access control (MAC)
address.
Adapter address.
Hardware address.
Which two of the following are examples of local area network
(LAN) logical addresses? (Choose two.) - ANSWER-
201.90.35.78
Port 23
Which Internet protocol (IP) packet fragmentation header field
specifies where the fragment belongs in the original datagram?
- ANSWER-Fragment Offset.
Which is the Internet protocol (IP) header protocol number used
to specify that the packet's contents were created with
transmission control protocol (TCP)? -
,ANSWER-6
What types of processes are located on two computers that
perform approximately the same services? - ANSWER-Peer
Which of the following best describes the function of a media
access control (MAC) layer address? - ANSWER-Identifies the
destination device's physical address
A peer-to-peer network is a practical solution in which of the
following applications? (Choose two.) - ANSWER-Building a
simple network supporting a few clients accessing a shared
printer
Creating an inexpensive solution for a small business just
starting out
What three addresses are needed to move data from one
application to another across a network? - ANSWER-Network
address, network interface card (NIC) address, process address
Encapsulation means that each layer on the sending node does
which of the following? - ANSWER-Adds its protocol header to
the data
, What is the primary purpose of a Transport Layer protocol? -
ANSWER-
Transmit messages from process to process
Which of the following is the lowest layer? - ANSWER-Physical
Layer
Which of the following layers is only concerned with the
physical signals that represent data bits? - ANSWER-Physical
Layer
If segmentation occurs on the sending node, what must occur
on the receiving node? - ANSWER-Reassembly
What is the primary purpose of a Physical Layer protocol? -
ANSWER-Transmit bits across a physical link
What is the primary purpose of a Data Link Layer protocol? –
ANSWER-Transmit frames across a physical link
What is the primary purpose of a Network Layer protocol? -
ANSWER-Transmit packets across a network
Which of the choices below is a Transport Layer protocol? -
ANSWER-User datagram protocol (UDP)
