Network and Security - Foundations – D315
UPDATED Exam Questions and
CORRECT Answers
802.11a/Wireless-A - CORRECT ANSWER- wireless 5GHz - 54Mbps - *75ft*
802.11b/Wireless-B - CORRECT ANSWER- wireless 2.4GHz - *11Mbps* - 100-150ft
802.11g/Wireless-G - CORRECT ANSWER- 2.4GHz - *54Mbps - 150ft*
802.11ac/Wireless-AC - CORRECT ANSWER- 5GHz - *1.3Gbps*
802.11n/Wireless-N - CORRECT ANSWER- 2.4GHz - *200+Mbps*
2.4GHz - CORRECT ANSWER- Frequency ranges of 802.11G/802.11B
5GHz - CORRECT ANSWER- Frequency ranges of 802.11AC/802.11A
Application Layer - CORRECT ANSWER- Layer 7 in the OSI model. Support for
applications. Examples: HTTP, FTP, SMTP
Presentation Layer - CORRECT ANSWER- Layer 6 in the OSI model. Protocol conversion,
data translation. Examples: ASCII, JPEG
Session Layer - CORRECT ANSWER- Layer 5 in the OSI model. Establishes, manages, and
terminates sessions. Examples: NFS, SQL
Transport Layer - CORRECT ANSWER- Layer 4 in the OSI model. Ensures error-free
packets. Examples: TCP, UDP
, Network Layer - CORRECT ANSWER- Layer 3 in the OSI model. Provides routing
decisions. Examples: IP, IPX
Data Link Layer - CORRECT ANSWER- Layer 2 in the OSI model. Provides for the flow of
data. Examples: MAC addresses.
Physical Layer - CORRECT ANSWER- Layer 1 in the OSI model. Signals and media.
Examples: NICs, twisted-pair cable, fiber.
OSI model - CORRECT ANSWER- Application, Presentation, Session, Transport, Network,
Data Link, Physical. (*P*lease *D*o not *T*hrough *S*asuage *P*izza *A*way)
Application Layer (TCP/IP) - CORRECT ANSWER- Defines the applications used to
process requests and which ports and sockets are used
Transport Layer (TCP/IP) - CORRECT ANSWER- Defines the type of connection
established between hosts and how acknowledgements are sent
Internet Layer (TCP/IP) - CORRECT ANSWER- Defines the protocols used for addressing
and routing the data packets
Network interface Layer (TCP/IP) - CORRECT ANSWER- Defines how the host connects to
the network
The well-known ports - CORRECT ANSWER- TCP/IP Ports 1-1023
Registered ports - CORRECT ANSWER- TCP/IP Ports 1024-49,151
Private ports - CORRECT ANSWER- TCP/IP Ports 49,152-65,535
Social Engineering - CORRECT ANSWER- A process by which an intruder obtains enough
information from people to gain access to the network
UPDATED Exam Questions and
CORRECT Answers
802.11a/Wireless-A - CORRECT ANSWER- wireless 5GHz - 54Mbps - *75ft*
802.11b/Wireless-B - CORRECT ANSWER- wireless 2.4GHz - *11Mbps* - 100-150ft
802.11g/Wireless-G - CORRECT ANSWER- 2.4GHz - *54Mbps - 150ft*
802.11ac/Wireless-AC - CORRECT ANSWER- 5GHz - *1.3Gbps*
802.11n/Wireless-N - CORRECT ANSWER- 2.4GHz - *200+Mbps*
2.4GHz - CORRECT ANSWER- Frequency ranges of 802.11G/802.11B
5GHz - CORRECT ANSWER- Frequency ranges of 802.11AC/802.11A
Application Layer - CORRECT ANSWER- Layer 7 in the OSI model. Support for
applications. Examples: HTTP, FTP, SMTP
Presentation Layer - CORRECT ANSWER- Layer 6 in the OSI model. Protocol conversion,
data translation. Examples: ASCII, JPEG
Session Layer - CORRECT ANSWER- Layer 5 in the OSI model. Establishes, manages, and
terminates sessions. Examples: NFS, SQL
Transport Layer - CORRECT ANSWER- Layer 4 in the OSI model. Ensures error-free
packets. Examples: TCP, UDP
, Network Layer - CORRECT ANSWER- Layer 3 in the OSI model. Provides routing
decisions. Examples: IP, IPX
Data Link Layer - CORRECT ANSWER- Layer 2 in the OSI model. Provides for the flow of
data. Examples: MAC addresses.
Physical Layer - CORRECT ANSWER- Layer 1 in the OSI model. Signals and media.
Examples: NICs, twisted-pair cable, fiber.
OSI model - CORRECT ANSWER- Application, Presentation, Session, Transport, Network,
Data Link, Physical. (*P*lease *D*o not *T*hrough *S*asuage *P*izza *A*way)
Application Layer (TCP/IP) - CORRECT ANSWER- Defines the applications used to
process requests and which ports and sockets are used
Transport Layer (TCP/IP) - CORRECT ANSWER- Defines the type of connection
established between hosts and how acknowledgements are sent
Internet Layer (TCP/IP) - CORRECT ANSWER- Defines the protocols used for addressing
and routing the data packets
Network interface Layer (TCP/IP) - CORRECT ANSWER- Defines how the host connects to
the network
The well-known ports - CORRECT ANSWER- TCP/IP Ports 1-1023
Registered ports - CORRECT ANSWER- TCP/IP Ports 1024-49,151
Private ports - CORRECT ANSWER- TCP/IP Ports 49,152-65,535
Social Engineering - CORRECT ANSWER- A process by which an intruder obtains enough
information from people to gain access to the network
