preFinals ITC

Question 1

links computers for shared resources through
the internet.

Answer 1

Computer Networking

Question 2

List all 5 Network Categories based on Geography

Answer 2

Personal Area Network (PAN)
Local Area Network (LAN)
Campus Area Network (CAN)
Metropolitan Area Network (MAN)
Wide Area Network (WAN)

Question 3

The smallest type of network with
a limited span interconnects compatible personal devices.
Examples include wireless earphones-to-smartphone and
computer-to-printer connections.

Answer 3

Personal Area Network (PAN)

Question 4

This is used to interconnect and
share computer resources in an establishment such as a
corporate building, house, or several buildings in a limited area.

Answer 4

Local Area Network

Question 5

An enterprise network covering
multiple buildings in a campus environment, including universities
and large organizations.

Answer 5

Campus Area Network

Question 6

This covers multiple city
buildings, traffic lights, and parking meters, connecting wirelessly
as a metropolitan area network.

Answer 6

Metropolitan Area Network

Question 7

A much larger network covering vast
areas, such as cities, provinces, and countries. WAN can also be
a bigger network consisting of LANs and MANs.

Answer 7

Wide Area Network

Question 8

It is a diagram displaying the structure of network devices and services to serve the clients’ connectivity needs.

Answer 8

Network Architecture

Question 9

Common Types of Network Architecture

Fulfilling the needs of the client is the biggest goal of computer
networks.

What are the three common types of enterprise networks:

Answer 9

Access networks
Networks for data centers
Wide-area Networks (WAN)

Question 10

in campuses and branches bring users and devices together, such as linking employees in a corporate building.

Answer 10

Access networks

Question 11

in a company link multiple servers
with data and applications and make them easily accessible to users.

Answer 11

Networks for data centers

Question 12

connect users to programs and
services, such as hospital employees connecting to health applications.

Answer 12

Wide-area Networks (WAN)

Question 13

reference model of the
International Organization for Standardization was developed in 1984 as an open standard for every communication system to allow the
interlinking of different types of networks.

Answer 13

The Open Systems Interconnection Model

or

The Open Systems Interconnection (OSI)

Question 14

What are the 7 layers of OSI model?
IN ORDER!!

Answer 14

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

Question 15

gives electrical and mechanical connections to
the network.

Answer 15

Physical Layer

Question 16

handles error recovery, flow control, and sequencing of terminals that are either sending or receiving. It is the media access control (MAC) layer where MAC addressing is defined.

Answer 16

Data Link Layer

Question 17

acts as the network controller that receives outgoing messages and combines messages and segments into packets with a header detailing the routing information.

Answer 17

Network layer

Question 18

liable for end-to-end delivery between devices. It deals with message integrity between source and destination and segmenting and reassembling packets.

Answer 18

Transport Layer

Question 19

provides the control functions required to start, manage, and end connections to satisfy user requests.

Answer 19

Session Layer

Question 20

accepts and structures the messages for an application by converting the message from one code to another.
It also processes data compression and encryption.

Answer 20

Presentation Layer

Question 21

It interacts with application programs with communication components such as a web browser and email. It is responsible for recording a message, understanding the request, and identifying the information needed to support it.

Answer 21

Application Layer

Question 22

_____ Layer : Handles signal and media

Answer 22

Physical Layer

Question 23

_____ Layer: Assigned for the flow of data

Answer 23

Data Link Layer

Question 24

Provides addressing and routing decisions

Answer 24

Network Layer

Question 25

Manages end-to-end delivery to ensure error-free packets

Answer 25

Transport Layer

Question 26

Establishes, manages, and terminates sessions

Answer 26

Session Layer

Question 27

Manages protocol conversion and data translation

Answer 27

Presentation Layer

Question 28

Provides support for applications

Answer 28

Application Layer

Question 29

These are devices required for communication and interaction between components on a computer network, either wired or wireless.

Answer 29

Network Types and Devices

Question 30

uses cabling and connectors to initiate network connections.

Answer 30

Wired Network

Question 31

uses radio signals to initiate network connections. It is the most common home network configuration today.

Answer 31

Wireless Network

Question 32

Network type: _______ Advantages: • Faster network data transfer speed • inexpensive setup • Not susceptible to outside interference Disadvantages: • Specialized tools for cable connections • Labor intensive

Answer 32

Wired

Question 33

Network type: _______ Advantages: • User mobility • Simple installation Disadvantages: • Security issues • Slower data transfer

Answer 33

Wireless

Question 34

What are the 6 Wired Network Devices?

Answer 34

Lan Ethernet Cable Hub Switch Cable Modem Servers Firewall

Question 35

connects devices within a local area network. It is limited by length and durability specifications resulting in a bad signal if the cable is too long or of poor quality.

Answer 35

Lan Ethernet Cable

Question 36

interconnects networking devices but risks the broadcast of data it receives to all devices connected to it.

Answer 36

Hub

Question 37

initiates a direct connection from the sender to the destination bypassing the data traffic to ensure data privacy, unlike a hub. It is best for interconnecting networking devices.

Answer 37

Switch

Question 38

uses a cable connection to create a broadband network connection from a home network to the internet service provider (ISP). This setup needs a splitter to divide the cable TV from the home network.

Answer 38

Cable Modem

Question 39

provide resources, data, services, and programs to other computers or clients over a network. It is tasked to handle complex operations such as databases, emails, and shared files.

Answer 39

Servers

Question 40

a security device that monitors and secures incoming and outgoing network traffic based on established security policies. It is essentially the barrier between a private internal network and the public Internet.

Answer 40

Firewall

Question 41

What are the 3 Wireless Network Devices?

Answer 41

Wireless Access Point Wireless Router WiFi Modem

Question 42

connects wireless devices and provides a connection to wired LANs.

Answer 42

Wireless Access Point

Question 43

consists of a router, switch, and wireless access point that uses radio frequency to link networking devices. It is the most common way to connect wireless LANs to the ISP’s access device.

Answer 43

Wireless Router

Question 44

combines the functionality of a modem and a router, thus making it a convenient source for Internet connectivity.

Answer 44

WiFi Modem

Question 45

is the rule for users to exchange information.

Answer 45

Networking Protocol

Question 46

is the physical and logical arrangement of nodes such as a switch or hub and connections in a network.

Answer 46

Network Topology

Question 47

The most common topologies for LANs are (there are 5)..

Answer 47

Point-to-point Token ring Bus Star Mesh

Question 48

the simplest network topology where two devices, like a computer or router, are connected directly. With this, the communication only flows between the two devices.

Answer 48

Point-to-point

Question 49

Its deterministic nature ensures access to message transmissions at regular or fixed time intervals for each connected station.

Answer 49

Token Ring

Question 50

occurs when computers share the media for data transmission using a coaxial cable, preventing data transmission from being extremely bandwidth efficient.

Answer 50

Bus

Question 51

the most common networking topology in LANs today, where all the devices connect to a central switch or hub.

Answer 51

Star

Question 52

it is when the networking devices are directly connected where several paths exist between the end devices.

Answer 52

Mesh

Question 53

deals with the fundamental human rights of a person’s privacy on the Internet, including the rights to the privacy of an owner's displayed, stored, and confidential information.

Answer 53

Internet Privacy

Question 54

Different Techniques to Protect Internet Privacy (there are 5)

Answer 54

Securing Web Browser Using a Virtual Private Network (VPN) Double-checking Unfamiliar Links Limited Sharing on Social Media Using Multi-factor Authentication

Question 55

Web browsers such as Google Chrome and Mozilla Firefox are the most used browsers online for their specific features and familiarity, although a total security guarantee is not automatic.

Answer 55

Securing Web Browser

Question 56

It is the best way to have Internet privacy. It does not just change the IP address; it also protects incoming and outgoing Internet traffic with extensive encryption. Online activities and personal information stay secure and private from snoopers because of this technology.

Answer 56

Using a Virtual Private Network (VPN)

Question 57

Never trust links from suspicious emails, sketchy websites, and advertisements. Double-check the URL to see if it has the correct format before clicking.

Answer 57

Double-checking unfamiliar links

Question 58

Social media platforms like Instagram, Facebook, and Twitter are all publicly accessible. Their privacy protection is optional by locking the account or making it private.

Answer 58

Limited sharing on social media

Question 59

is an added verification step besides a conventional password. Google applies this wherein the users must provide a specific code sent to their smartphones to access their accounts.

Answer 59

Using Multi-factor authentication

Question 60

It ensures the integrity, confidentiality, and accessibility of computer networks. It is relevant when cybercriminals are becoming more dominant in exploiting new users and enterprises, then it is vital to take extra precautions to avoid any data breach.

Answer 60

Network Security

Question 61

Network Technologies What are some 5 network security technologies of today:

Answer 61

Firewall Intrusion Detection System (IDS) Wi-Fi Protected Access 3 (WPA3) Virtual Privacy Network (VPN) Email Security

Question 62

It was previously stated that it monitors and filters incoming and outgoing network traffic. Additionally, it serves as a “wall,” either hardware or software, between the trusted internal and untrusted external Internet by only allowing the verified traffic based on the predetermined set of rules in place.

Answer 62

Firewall

Question 63

It is a software or a device for closely monitoring a network for any malicious activity or intrusion at the network or the host.

Answer 63

Intrusion Detection System (IDS)

Question 64

It is the latest wireless network security certificate protocol by the WiFi alliance. It focuses its filtering at the “entry” when a new device requests to connect to the network.

Answer 64

Wi-Fi Protected Access 3 (WPA3)

Question 65

It connects any remote device to an enterprise server wherein company data is hosted. 1It piggybacks on a public network to directly access the server, ensuring that the users' online activities are publicly hidden. This feature makes it one of the most powerful network security tools.

Answer 65

Virtual Private Network (VPN)

Question 66

As emails allow scripts to be embedded inside the device, it is easier for anyone to write a code, attach it to an email, then send it. Receivers tend to click this email which can comprise the device. The most effective security methods include email spam filters with deep learning to filter domains that send spam.

Answer 66

Email Security

Question 67

What are the following 5 consequences of combined failures of the internet and network:

Answer 67

Revenue Loss Maintenance Cost Laser productivity Damaged Reputation Legal Repercussions

Question 68

One of the most significant consequences companies face during an internet, and network downtime is revenue loss. Even if the downtime only lasts minutes, it still puts operations and transactions on hold, which is considered a revenue loss for these companies. Proper cable management is the best way to ensure network reliability, as well as an occasional internet check-up and monitoring.

Answer 68

Revenue Loss

Question 69

Repairing damaged internet and network lines consumes both time and maintenance costs, including acquiring new cables and upgraded network devices for replacement. Daily monitoring of the cables and network devices is encouraged to prevent sudden company downtime.

Answer 69

Maintenance Cost

Question 70

Internet and network failure significantly affect productivity as tasks heavily rely on the internet. Employees will remain stagnant until the downtime is fixed, causing low productivity outcomes. It is advisable to provide a backup network and a backup internet service provider for quick resolutions for sudden downtimes.

Answer 70

Lesser Productivity

Question 71

If internet and network failures regularly occur, it negatively impacts the employees and the company’s clients and partners. Reoccurring internet and network problems could be interpreted as negligence, reflecting bad management and maintenance. It is encouraged to maintain a system that would ensure the reoccurrence of the problems, and it is advisable to assure everyone of the internet and network security in place.

Answer 71

Damaged Reputation

Question 72

Failures in operations and transactions mean failure to meet agreedupon outputs and deliverables on time. It could lead to legal repercussions, especially when crucial outputs are at risk. The best way to prevent this is by alerting every concerned party as soon as failure happens to lay down plans of recovery without compromising the quality and the demand of the clients.

Answer 72

Legal Repercussions