LESSON1

Question 1

Provides a structured approach to explain the interaction of
networking devices.

Answer 1

Conceptual Framework

Question 2

Helps to visualize how networks operate and isolate network
problems.

Answer 2

Conceptual Framework

Question 3

Explains the connectivity to understand the protocols and technology
used in computer networks.

Answer 3

Conceptual Framework

Question 4

In networking, we have two most common frameworks—OSI and
TCP/IP model.

Answer 4

Conceptual Framework

Question 5

Networking most common frameworks.

Answer 5

OSI Model
TCP/IP Model

Question 6

7 Layers of OSI Model

Answer 6

Physical Layer
Data Link Layer
Network Layer
Transport Layer
Session Layer
Presentation Layer
Application Layer

Question 7

responsible for transmission and reception of unstructured raw data between a device. Handles data frames received from the Data Link layer into binary data bits of 1s and 0s.

Answer 7

Physical Layer

Question 8

directly connected nodes are
used to perform node-to-node data transfer where data is packaged
into frames. The ________ layer encompasses two sub-layers of its
own. The first, media access control (MAC), provides flow control and
multiplexing for device transmissions over a network.

Answer 8

Data Link Layer

Question 9

layer is responsible for receiving
frames from the data link layer, and delivering them to their intended
destinations among based on the addresses contained inside the
frame.

Answer 9

Network Layer

Question 10

finds the destination by using logical addresses, such as IP (internet protocol). At this layer, routers are a crucial component used to quite literally route information where it needs to go between networks.

Answer 10

Network Layer

Question 11

layer manages the delivery and
error checking of data packets. This is where TCP(transmission
control protocol) and UDP(user datagram protocol) takes place.

Answer 11

Transport Layer

Question 12

controls the conversations between
different computers. A _______ or connection between machines is set
up, managed, and determined at layer 5. __________ services also
include authentication and reconnections.

Answer 12

Session Layer

Question 13

layer formats or translates
data for the application layer based on the syntax or semantics that
the application accepts. Because of this, it at times also called the
syntax layer. This layer can also handle the encryption and decryption
required by the application layer.

Answer 13

Presentation Layer

Question 14

• At this layer, both the end user and the _________ interact directly with the software application.

Answer 14

Application Layer

Question 15

Network Interface (Data Link, Physical)
Network
Transport
Application Layer (Session, Presentation, Application)

Answer 15

TCP/IP Model

Question 16

Difference of TCP/IP on OSI Model

Answer 16

The TCP/IP model provides a practical approach, unlike the OSI
model, which is more theoretical.

The model divides the data into four (4) layers, where the data first
goes into each of the layers in order to perform communication.

Question 17

making the mask longer than the default for the IP class.

Answer 17

IP Subnetting

Question 18

This creates sub-networks that allow for the efficient use of the
address space.

Answer 18

IP Subnetting

Question 19

is used for taking a packet from one
device and sending it through the network to another network.

Answer 19

Routing

Question 20

_____ uses routing table to make decisions.

Answer 20

Router

Question 21

can be manually or dynamically configured.

Answer 21

Routing

Question 22

manually enter route information and uses simple routing algorithms and provides more security than
dynamic routing.

Answer 22

Static Routing

Question 23

It does not handle failures in external networks well.

Answer 23

Static Routing

Question 24

Static Routing Configuration

Answer 24

ip route <destination> <subnet> <next></next></subnet></destination>