2024 NETWORK AND SECURITY
FOUNDATIONS EXAM WITH
CORRECT ANSWERS
Physical Layer (Layer 1) - CORRECT ANSWERS-This layer is responsible for
the physical connections of the devices in the network. This layer is
implemented through the use of devices such as hubs, repeaters, modem
devices, and physical cabling.
ARP - CORRECT ANSWERS-Displays the IP to physical (MAC) address
mappings for hosts that have been discovered in the ARP cache. ARP can be
used to add, remove, or modify entries in the ARP cache.
Data Link Layer (Layer 2) - CORRECT ANSWERS-This layer is responsible for
the error-free delivery of data to the receiving device or node. This layer is
implemented through the use of devices such as switches and bridge
devices, as well as anything with a network interface, like wireless or wired
network cards.
What Layer(s) does a Hub operate at - CORRECT ANSWERS-Operates at the
Physical Level
What Layer(s) does a Repeater operate at - CORRECT ANSWERS-Operates at
the Physical Level
UTP Cables - CORRECT ANSWERS-These cables are created when pairs of
wires are twisted around each other to protect and cancel out interference
from each other and outside sources
Coaxial Cables - CORRECT ANSWERS-Analog cables made of copper but
specifically engineered with a metal shield intended to block signal
interference.
Fiber Cables - CORRECT ANSWERS-Use glass or plastic threads within cables
to transfer the data using light (lasers or LEDs) as opposed to traditional
metal cables using electricity.
Crossover cables - CORRECT ANSWERS-A type of twisted-pair cabling used to
connect one computer to another, useful for direct file transfers. Crossover
, cables can connect any similar devices; for example, computer to computer,
hub to hub, and so on.
Patch Cables - CORRECT ANSWERS-Are short cables that connect devices in
a rack within a MDF room.
ping - CORRECT ANSWERS-a DOS command that tests connectivity and
isolates hardware problems and any mismatched configurations
traceroute (tracert) - CORRECT ANSWERS-A command on many computer
operating systems that discovers the IP addresses, and possibly host names,
of the routers used by the network when sending a packet from one
computer to another.
tracepath - CORRECT ANSWERS-Is similar to traceroute or tracert in that it
displays the path taken by a packet from its source to its destination. This
command is useful because it can be used by any user instead of needing
superuser privileges. It is primarily used in Linux.
ipconfig - CORRECT ANSWERS-Windows command that shows the IP
configuration settings on a PC
ifconfig - CORRECT ANSWERS-A command-line tool used on Linux systems to
show and manipulate settings on a network interface card (NIC). Similar to
ipconfig used on Windows systems.
Network Layer (Layer 3) - CORRECT ANSWERS-This layer is responsible for
the transmission of data between hosts in different networks as well as
routing of data packets. This layer is implemented through the use of devices
such as routers and some switches.
Transport Layer (Layer 4) - CORRECT ANSWERS-This layer provides services
to the application layer and receives services from the network layer. It is
responsible for the reliable delivery of data. It segments and reassembles
data in the correct order for it to be sent to the receiving device. This layer is
often called the heart of OSI.
Session Layer (Layer 5) - CORRECT ANSWERS-This layer is responsible for
connection establishment, session maintenance, and authentication.
Presentation Layer (Layer 6) - CORRECT ANSWERS-This layer is responsible
for translating data from the application layer into the format required to
transmit the data over the network as well as encrypting the data for
security if encryption is used.
FOUNDATIONS EXAM WITH
CORRECT ANSWERS
Physical Layer (Layer 1) - CORRECT ANSWERS-This layer is responsible for
the physical connections of the devices in the network. This layer is
implemented through the use of devices such as hubs, repeaters, modem
devices, and physical cabling.
ARP - CORRECT ANSWERS-Displays the IP to physical (MAC) address
mappings for hosts that have been discovered in the ARP cache. ARP can be
used to add, remove, or modify entries in the ARP cache.
Data Link Layer (Layer 2) - CORRECT ANSWERS-This layer is responsible for
the error-free delivery of data to the receiving device or node. This layer is
implemented through the use of devices such as switches and bridge
devices, as well as anything with a network interface, like wireless or wired
network cards.
What Layer(s) does a Hub operate at - CORRECT ANSWERS-Operates at the
Physical Level
What Layer(s) does a Repeater operate at - CORRECT ANSWERS-Operates at
the Physical Level
UTP Cables - CORRECT ANSWERS-These cables are created when pairs of
wires are twisted around each other to protect and cancel out interference
from each other and outside sources
Coaxial Cables - CORRECT ANSWERS-Analog cables made of copper but
specifically engineered with a metal shield intended to block signal
interference.
Fiber Cables - CORRECT ANSWERS-Use glass or plastic threads within cables
to transfer the data using light (lasers or LEDs) as opposed to traditional
metal cables using electricity.
Crossover cables - CORRECT ANSWERS-A type of twisted-pair cabling used to
connect one computer to another, useful for direct file transfers. Crossover
, cables can connect any similar devices; for example, computer to computer,
hub to hub, and so on.
Patch Cables - CORRECT ANSWERS-Are short cables that connect devices in
a rack within a MDF room.
ping - CORRECT ANSWERS-a DOS command that tests connectivity and
isolates hardware problems and any mismatched configurations
traceroute (tracert) - CORRECT ANSWERS-A command on many computer
operating systems that discovers the IP addresses, and possibly host names,
of the routers used by the network when sending a packet from one
computer to another.
tracepath - CORRECT ANSWERS-Is similar to traceroute or tracert in that it
displays the path taken by a packet from its source to its destination. This
command is useful because it can be used by any user instead of needing
superuser privileges. It is primarily used in Linux.
ipconfig - CORRECT ANSWERS-Windows command that shows the IP
configuration settings on a PC
ifconfig - CORRECT ANSWERS-A command-line tool used on Linux systems to
show and manipulate settings on a network interface card (NIC). Similar to
ipconfig used on Windows systems.
Network Layer (Layer 3) - CORRECT ANSWERS-This layer is responsible for
the transmission of data between hosts in different networks as well as
routing of data packets. This layer is implemented through the use of devices
such as routers and some switches.
Transport Layer (Layer 4) - CORRECT ANSWERS-This layer provides services
to the application layer and receives services from the network layer. It is
responsible for the reliable delivery of data. It segments and reassembles
data in the correct order for it to be sent to the receiving device. This layer is
often called the heart of OSI.
Session Layer (Layer 5) - CORRECT ANSWERS-This layer is responsible for
connection establishment, session maintenance, and authentication.
Presentation Layer (Layer 6) - CORRECT ANSWERS-This layer is responsible
for translating data from the application layer into the format required to
transmit the data over the network as well as encrypting the data for
security if encryption is used.
