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
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
