Network+ N10-008 Study Guide UPDATED ACTUAL Questions and
CORRECT Answers
1. OSI Model Open Systems Interconnection Model, used to understand the "layers" of net-
working.
2. OSI Layers (1 to 1. Physical
7) 2. Data Link
3. Network
4. Transport
5. Session
6. Presentation
7. Application
3. OSI Mnemonic Please Do Not Throw Sausage Pizza Away
4. UTP (Unshielded A type of twisted pair cabling that does not include shielding around its conduc-
Twisted Pair) tors.
5. Physical Layer • moves bits between devices (or radio waves through air)
(Layer 1) • Specifies voltage, wire speed, pin-out of cables
(Example: physical topology)
( takes frames from the Data Link layer and encodes the 1s and 0s into a digital
signal for transmission on the network medium. responsible for the electrical and
mechanical connections)
, Network+ N10-008 Study Guide UPDATED ACTUAL Questions and
CORRECT Answers
6. MAC address A 48-bit hardware (or physical) address, written in hex, that uniquely identifies
each node on a network.
7. Organizationally The first 3 bytes of the MAC address that identifies the manufacturer of the network
Unique Identifier hardware.
(OUI)
8. MAC-48 and Numbering name spaces for MAC addresses defined by the IEEE.
EUI-48
9. Frames A term referring to an L2 data link header and trailer, plus the data encapsulated
between the header and trailer.
10. FCS (Frame Portion of an Ethernet frame used for error checking, most commonly with the
Check Sequence) CRC algorithm.
11. header, payload, Order in which data is structured in a Layer 2 data link frame.
trailer
12. MAC broadcast FF-FF-FF-FF-FF-FF, which is processed by every system on the network.
address
, Network+ N10-008 Study Guide UPDATED ACTUAL Questions and
CORRECT Answers
13. Data Link Layer • provides access to media using MAC address
(Layer 2) • Combines packets into bytes and bytes into frames
• Performs error detection, not correction
( example: LAN, framing)
responsible for the framing of data packets. protocol data units (PDU) at this layer
14. Network Layer • provides logical addressing, which routers use for path determination
(Layer 3) (Example: router)
(provides routing through an internetwork and logical addressing.)
15. Router Networking hardware that forwards data based on IP addresses.
16. TCP/IP Packets A packet, similar to a frame, is how data is transmitted at the layer 3 of networking.
, Network+ N10-008 Study Guide UPDATED ACTUAL Questions and
CORRECT Answers
17. TCP/IP Segmen- The process of dividing large chunks of data into packets for transmission.
tation
18. Transport Layer The fourth layer of the OSI model. In this layer protocols ensure that data are
(Layer 4) transferred from point A to point B reliably and without errors. this layer services
include flow control, acknowledgment, error correction, segmentation, reassem-
bly, and sequencing.
Example: TCP
19. Session Layer -responsible for establishing, maintaining, and terminating comm sessions b/t
(Layer 5) two computers
-manages dialogue discipline or dialogue control (simplex, half-duplex, full-du-
plex)
-re-transmits PDU's (packets) that have failed
20. netstat -a Displays all connections and listening ports.
21. Presentation Lay- -responsible for transforming data received from the app layer into a format that
er (Layer 6) any system following the OSI model can understand
-imposes standardized structure and formatting rules onto the data
CORRECT Answers
1. OSI Model Open Systems Interconnection Model, used to understand the "layers" of net-
working.
2. OSI Layers (1 to 1. Physical
7) 2. Data Link
3. Network
4. Transport
5. Session
6. Presentation
7. Application
3. OSI Mnemonic Please Do Not Throw Sausage Pizza Away
4. UTP (Unshielded A type of twisted pair cabling that does not include shielding around its conduc-
Twisted Pair) tors.
5. Physical Layer • moves bits between devices (or radio waves through air)
(Layer 1) • Specifies voltage, wire speed, pin-out of cables
(Example: physical topology)
( takes frames from the Data Link layer and encodes the 1s and 0s into a digital
signal for transmission on the network medium. responsible for the electrical and
mechanical connections)
, Network+ N10-008 Study Guide UPDATED ACTUAL Questions and
CORRECT Answers
6. MAC address A 48-bit hardware (or physical) address, written in hex, that uniquely identifies
each node on a network.
7. Organizationally The first 3 bytes of the MAC address that identifies the manufacturer of the network
Unique Identifier hardware.
(OUI)
8. MAC-48 and Numbering name spaces for MAC addresses defined by the IEEE.
EUI-48
9. Frames A term referring to an L2 data link header and trailer, plus the data encapsulated
between the header and trailer.
10. FCS (Frame Portion of an Ethernet frame used for error checking, most commonly with the
Check Sequence) CRC algorithm.
11. header, payload, Order in which data is structured in a Layer 2 data link frame.
trailer
12. MAC broadcast FF-FF-FF-FF-FF-FF, which is processed by every system on the network.
address
, Network+ N10-008 Study Guide UPDATED ACTUAL Questions and
CORRECT Answers
13. Data Link Layer • provides access to media using MAC address
(Layer 2) • Combines packets into bytes and bytes into frames
• Performs error detection, not correction
( example: LAN, framing)
responsible for the framing of data packets. protocol data units (PDU) at this layer
14. Network Layer • provides logical addressing, which routers use for path determination
(Layer 3) (Example: router)
(provides routing through an internetwork and logical addressing.)
15. Router Networking hardware that forwards data based on IP addresses.
16. TCP/IP Packets A packet, similar to a frame, is how data is transmitted at the layer 3 of networking.
, Network+ N10-008 Study Guide UPDATED ACTUAL Questions and
CORRECT Answers
17. TCP/IP Segmen- The process of dividing large chunks of data into packets for transmission.
tation
18. Transport Layer The fourth layer of the OSI model. In this layer protocols ensure that data are
(Layer 4) transferred from point A to point B reliably and without errors. this layer services
include flow control, acknowledgment, error correction, segmentation, reassem-
bly, and sequencing.
Example: TCP
19. Session Layer -responsible for establishing, maintaining, and terminating comm sessions b/t
(Layer 5) two computers
-manages dialogue discipline or dialogue control (simplex, half-duplex, full-du-
plex)
-re-transmits PDU's (packets) that have failed
20. netstat -a Displays all connections and listening ports.
21. Presentation Lay- -responsible for transforming data received from the app layer into a format that
er (Layer 6) any system following the OSI model can understand
-imposes standardized structure and formatting rules onto the data
