Comptia Network+ n10-008
2026 Exam Questions and
Correct Answers | New
Update
OSI layers - ANSWER ✔✔7. Application
6. Presentation
5. Session
4. Transport
3. Network
2. Data Link
,1. Physical
What does OSI stand for? - ANSWER ✔✔Open Systems
Interconnection
Layer 1 - Physical - ANSWER ✔✔The physics of the network, cables,
connectors, signaling, etc
Layer 2 - Data Link Layer - ANSWER ✔✔handles how data moves in
and out of a physical link in a network
Layer 3 - Network Layer - ANSWER ✔✔dedicated to routing and
switching information to different networks. UOM= Packets
Layer 4 - Transport Layer - ANSWER ✔✔Describes how data is
being delivered and where it is being delivered into a system. Uses TCP,
UDP
Layer 5 - Session layer - ANSWER ✔✔• Communication
management between devices
- Start, stop, restart
• Half-duplex, full-duplex
• Control protocols, tunneling protocols
,Layer 6 - Presentation Layer - ANSWER ✔✔Takes the data and puts
it into a form we can understand
- encoding of characters, encryption of app data will occur at this level
Layer 7 - Application Layer - ANSWER ✔✔layer we see, HTTP, FTP,
DNS, POP3
PDU (protocol data unit) - ANSWER ✔✔A unit of data at any layer of
the OSI model.
Encapsulation and Decapsulation - ANSWER ✔✔
TCP Flag - ANSWER ✔✔The six flags in a TCP header are switches
that can be set to on or off to indicate the status of a port or service.
MTU (maximum transmission unit) - ANSWER ✔✔The largest IP
packet size in bytes allowable by routers in a path without fragmentation
and excluding the frame size.
Network Topologies - ANSWER ✔✔represents a network's physical
layout, including the arrangement of computers and cables
Star topology - ANSWER ✔✔A topology with one central node that
has each computer or network device attached to the central node. All
3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, data first goes into the central node and then is sent out to its
destination. (Think of it like a bicycle wheel with spokes.)
Ring topology - ANSWER ✔✔A LAN configuration in which all nodes
are connected in a closed loop
Bus topology - ANSWER ✔✔Network configuration wherein all
computers connect to the network via a central bus cable.
Mesh topology - ANSWER ✔✔every node is connected to every
other node
Hybrid network - ANSWER ✔✔network made up of a combination of
other network topologies
Wireless topologies - ANSWER ✔✔• Infrastructure
- All devices communicate through
an access point
- The most common wireless
communication mode
peer-to-peer network - ANSWER ✔✔No central server, each device
is a server and a client and communicate with each other to gain access
to the data they might need
2026 Exam Questions and
Correct Answers | New
Update
OSI layers - ANSWER ✔✔7. Application
6. Presentation
5. Session
4. Transport
3. Network
2. Data Link
,1. Physical
What does OSI stand for? - ANSWER ✔✔Open Systems
Interconnection
Layer 1 - Physical - ANSWER ✔✔The physics of the network, cables,
connectors, signaling, etc
Layer 2 - Data Link Layer - ANSWER ✔✔handles how data moves in
and out of a physical link in a network
Layer 3 - Network Layer - ANSWER ✔✔dedicated to routing and
switching information to different networks. UOM= Packets
Layer 4 - Transport Layer - ANSWER ✔✔Describes how data is
being delivered and where it is being delivered into a system. Uses TCP,
UDP
Layer 5 - Session layer - ANSWER ✔✔• Communication
management between devices
- Start, stop, restart
• Half-duplex, full-duplex
• Control protocols, tunneling protocols
,Layer 6 - Presentation Layer - ANSWER ✔✔Takes the data and puts
it into a form we can understand
- encoding of characters, encryption of app data will occur at this level
Layer 7 - Application Layer - ANSWER ✔✔layer we see, HTTP, FTP,
DNS, POP3
PDU (protocol data unit) - ANSWER ✔✔A unit of data at any layer of
the OSI model.
Encapsulation and Decapsulation - ANSWER ✔✔
TCP Flag - ANSWER ✔✔The six flags in a TCP header are switches
that can be set to on or off to indicate the status of a port or service.
MTU (maximum transmission unit) - ANSWER ✔✔The largest IP
packet size in bytes allowable by routers in a path without fragmentation
and excluding the frame size.
Network Topologies - ANSWER ✔✔represents a network's physical
layout, including the arrangement of computers and cables
Star topology - ANSWER ✔✔A topology with one central node that
has each computer or network device attached to the central node. All
3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, data first goes into the central node and then is sent out to its
destination. (Think of it like a bicycle wheel with spokes.)
Ring topology - ANSWER ✔✔A LAN configuration in which all nodes
are connected in a closed loop
Bus topology - ANSWER ✔✔Network configuration wherein all
computers connect to the network via a central bus cable.
Mesh topology - ANSWER ✔✔every node is connected to every
other node
Hybrid network - ANSWER ✔✔network made up of a combination of
other network topologies
Wireless topologies - ANSWER ✔✔• Infrastructure
- All devices communicate through
an access point
- The most common wireless
communication mode
peer-to-peer network - ANSWER ✔✔No central server, each device
is a server and a client and communicate with each other to gain access
to the data they might need
