The Bits and Bytes of Computer
Networking Questions and Answers
Rated A
TCP/IP Five Layer Model ✔✔Physical layer , Data link Layer, network Layer, Transport Layer,
Application Layer
OSI Model (7 layers) ✔✔The seven layers Physical, Data link Layer, Network layer, Transport
Layer, Session Layer, Presentation Layer, Application Layer
Internetwork ✔✔The loose collection of networks called "the Internet" is the short form of
which of the following words?
a. internetwork c. interarpanet
b. internexus d. interconnect
Protocal (Network) ✔✔code of correct conduct Defined set of standards that computers must
follow in order to communicate properly
Computer Networking ✔✔The sharing of information or services between computers using
wireless or cable transmission media
,Physical Layer (Layer 1) ✔✔Represents the physical devices that interconnect computers.
Specifies how signals are sent over connections.
Data Link Layer (Layer 2) ✔✔The second layer in the OSI model and TCPIP Model. This layer
bridges the networking media with the Network layer. Its primary function is to divide the data it
receives from the Network layer into frames that can then be transmitted by the Physical layer.
Network Layer (Layer 3) ✔✔-responsible for adding routing and addressing info to the data
-accepts the segment from the transport layer and adds info, creating a packet (includes
source/destination IP)
-responsible for providing routing/delivery info, but not guaranteed delivery
-manages error detection and node data traffic (i.e, traffic control)
Client ✔✔A computer that requests data stored on a server.
Server ✔✔A computer that awaits and responds to requests for data.
,Transport Layer ✔✔The fourth layer of the OSI model. In this layer protocols ensure that data
are transferred from point A to point B reliably and without errors. this layer services include
flow control, acknowledgment, error correction, segmentation, reassembly, and sequencing.
Session Layer (Layer 5) ✔✔OSI Layer: Responsible for managing and controlling the
synchronization of data between applications. Performs connections between apps.
Presentation Layer (Layer 6) ✔✔OSI Layer: Converts data intended for or received from the
application layer into other formats. For example graphics, text, and sound/video data.
Also handles encryption.
Application Layer ✔✔The seventh layer of the OSI model. Fifth Layer of the TCP Model.
Application layer protocols enable software programs to negotiate formatting, procedural,
security, synchronization, and other requirements with the network.
Cat5 cable Category 5 ✔✔- Networking twisted pair cabling standard used to support 100 Mbps
and 2 Gbps Ethernet connection speeds.
, CAT5e Category 5e ✔✔- Networking twisted pair cabling standard used to support 100 Mbps
and 2 Gbps Ethernet connection speeds.
- Provides additional protection from EMI. Replaced CAT5
CAT6 (category 6) ✔✔Twisted-pair cables capable of carrying up to 1000Mbps (1 gigabit) of
data up to a length of 100 meters
Crosstalk ✔✔occurs when the signals of one wire affect the signals on an adjacent wire
Copper cable ✔✔Characteristic features of Category 5 (CAT5) cabling. RJ-45 connector
100 Mbps Ethernet
fiber-optic cable ✔✔Cable that uses light guided through thin glass tubes, instead of electrical
signals, to transmit data. It is very fast but also expensive.
hub ✔✔A device that uses its ports to connect devices (computers, printers, etc.) together
switch ✔✔A computer networking device that connects network segments
Networking Questions and Answers
Rated A
TCP/IP Five Layer Model ✔✔Physical layer , Data link Layer, network Layer, Transport Layer,
Application Layer
OSI Model (7 layers) ✔✔The seven layers Physical, Data link Layer, Network layer, Transport
Layer, Session Layer, Presentation Layer, Application Layer
Internetwork ✔✔The loose collection of networks called "the Internet" is the short form of
which of the following words?
a. internetwork c. interarpanet
b. internexus d. interconnect
Protocal (Network) ✔✔code of correct conduct Defined set of standards that computers must
follow in order to communicate properly
Computer Networking ✔✔The sharing of information or services between computers using
wireless or cable transmission media
,Physical Layer (Layer 1) ✔✔Represents the physical devices that interconnect computers.
Specifies how signals are sent over connections.
Data Link Layer (Layer 2) ✔✔The second layer in the OSI model and TCPIP Model. This layer
bridges the networking media with the Network layer. Its primary function is to divide the data it
receives from the Network layer into frames that can then be transmitted by the Physical layer.
Network Layer (Layer 3) ✔✔-responsible for adding routing and addressing info to the data
-accepts the segment from the transport layer and adds info, creating a packet (includes
source/destination IP)
-responsible for providing routing/delivery info, but not guaranteed delivery
-manages error detection and node data traffic (i.e, traffic control)
Client ✔✔A computer that requests data stored on a server.
Server ✔✔A computer that awaits and responds to requests for data.
,Transport Layer ✔✔The fourth layer of the OSI model. In this layer protocols ensure that data
are transferred from point A to point B reliably and without errors. this layer services include
flow control, acknowledgment, error correction, segmentation, reassembly, and sequencing.
Session Layer (Layer 5) ✔✔OSI Layer: Responsible for managing and controlling the
synchronization of data between applications. Performs connections between apps.
Presentation Layer (Layer 6) ✔✔OSI Layer: Converts data intended for or received from the
application layer into other formats. For example graphics, text, and sound/video data.
Also handles encryption.
Application Layer ✔✔The seventh layer of the OSI model. Fifth Layer of the TCP Model.
Application layer protocols enable software programs to negotiate formatting, procedural,
security, synchronization, and other requirements with the network.
Cat5 cable Category 5 ✔✔- Networking twisted pair cabling standard used to support 100 Mbps
and 2 Gbps Ethernet connection speeds.
, CAT5e Category 5e ✔✔- Networking twisted pair cabling standard used to support 100 Mbps
and 2 Gbps Ethernet connection speeds.
- Provides additional protection from EMI. Replaced CAT5
CAT6 (category 6) ✔✔Twisted-pair cables capable of carrying up to 1000Mbps (1 gigabit) of
data up to a length of 100 meters
Crosstalk ✔✔occurs when the signals of one wire affect the signals on an adjacent wire
Copper cable ✔✔Characteristic features of Category 5 (CAT5) cabling. RJ-45 connector
100 Mbps Ethernet
fiber-optic cable ✔✔Cable that uses light guided through thin glass tubes, instead of electrical
signals, to transmit data. It is very fast but also expensive.
hub ✔✔A device that uses its ports to connect devices (computers, printers, etc.) together
switch ✔✔A computer networking device that connects network segments
