NET 125 Test 3 Questions and Answers Already Passed Latest Update 2025/2026
Which PDU format is used when bits are received from the network medium by the NIC of a
host?
a. packet
b. segment
c. frame
d. file - Answers c
A user sends an HTTP request to a web server on a remote network. During encapsulation for
this request, what information is added to the address field of a frame to indicate the
destination?
a. the MAC address of the default gateway
b. the IP address of the destination host
c. the MAC address of the destination host
d. the IP address of the default gateway - Answers a
What is a benefit of using a layered model for network communications?
a. fostering competition among device and software vendors by enforcing the compatibility of
their products
b. avoiding possible incompatibility issues by using a common set of developing tools
c. enhancing network transmission performance by defining targets for each layer
d. simplifying protocol development by limiting every layer to one function - Answers a
What method can be used by two computers to ensure that packets are not dropped because
too much data is being sent too quickly?
a. flow control
b. encapsulation
c. access method
d. response timeout - Answers a
A web client is sending a request for a webpage to a web server. From the perspective of the
client, what is the correct order of the protocol stack that is used to prepare the request for
, transmission?
a. HTTP, TCP, IP, Ethernet
b. Ethernet, TCP, IP, HTTP
c. HTTP, IP, TCP, Ethernet
d. Ethernet, IP, TCP, HTTP - Answers a
Which statement accurately describes a TCP/IP encapsulation process when a PC is sending
data to the network?
a. Packets are sent from the network access layer to the transport layer.
b. Segments are sent from the transport layer to the internet layer.
c. Data is sent from the internet layer to the network access layer.
d. Frames are sent from the network access layer to the internet layer. - Answers b
Which protocol is responsible for controlling the size and rate of the HTTP messages
exchanged between server and client?
a. ARP
b. HTTP
c. TCP
d. DHCP - Answers c
A computer in a given network is communicating with a specific group of computers. What type
of communication is this?
a. broadcast
b. HTTP
c. multicast
d. unicast
e. ARP - Answers c
What is a function of Layer 4 of the OSI model?
a. to represent data to the user, including encoding and dialog control
b. to specify the packet type to be used by the communications
Which PDU format is used when bits are received from the network medium by the NIC of a
host?
a. packet
b. segment
c. frame
d. file - Answers c
A user sends an HTTP request to a web server on a remote network. During encapsulation for
this request, what information is added to the address field of a frame to indicate the
destination?
a. the MAC address of the default gateway
b. the IP address of the destination host
c. the MAC address of the destination host
d. the IP address of the default gateway - Answers a
What is a benefit of using a layered model for network communications?
a. fostering competition among device and software vendors by enforcing the compatibility of
their products
b. avoiding possible incompatibility issues by using a common set of developing tools
c. enhancing network transmission performance by defining targets for each layer
d. simplifying protocol development by limiting every layer to one function - Answers a
What method can be used by two computers to ensure that packets are not dropped because
too much data is being sent too quickly?
a. flow control
b. encapsulation
c. access method
d. response timeout - Answers a
A web client is sending a request for a webpage to a web server. From the perspective of the
client, what is the correct order of the protocol stack that is used to prepare the request for
, transmission?
a. HTTP, TCP, IP, Ethernet
b. Ethernet, TCP, IP, HTTP
c. HTTP, IP, TCP, Ethernet
d. Ethernet, IP, TCP, HTTP - Answers a
Which statement accurately describes a TCP/IP encapsulation process when a PC is sending
data to the network?
a. Packets are sent from the network access layer to the transport layer.
b. Segments are sent from the transport layer to the internet layer.
c. Data is sent from the internet layer to the network access layer.
d. Frames are sent from the network access layer to the internet layer. - Answers b
Which protocol is responsible for controlling the size and rate of the HTTP messages
exchanged between server and client?
a. ARP
b. HTTP
c. TCP
d. DHCP - Answers c
A computer in a given network is communicating with a specific group of computers. What type
of communication is this?
a. broadcast
b. HTTP
c. multicast
d. unicast
e. ARP - Answers c
What is a function of Layer 4 of the OSI model?
a. to represent data to the user, including encoding and dialog control
b. to specify the packet type to be used by the communications
