Semestral

Question 1

Malware

Answer 1

any type of software that compromises your computer’s functions, data, or access control.

Question 2

Virus

Answer 2

is capable of copying itself and spreading to whatever program/file is in contact with.

Question 3

Worms

Answer 3

they replicate and spread themselves causing harm to the host networks by consuming bandwidth and overloading web servers.

Question 4

Spyware

Answer 4

it steals private information and sends it to the hacker.

Question 5

Ransomeware

Answer 5

it restricts access to the computer and encrypts users’ files until the user pays a ransom.

Question 6

Keyloggers

Answer 6

it records everything the user types on the computer to obtain passwords and other sensitive information and sends them to the source of the keylogging program.

Question 7

Rootkit

Answer 7

A rootkit modifies the OS to make a backdoor. Hackers then use the backdoor to access the computer distantly to take control of it and steal information.

Question 8

Spyware

Answer 8

is the use of messaging systems to send an unsolicited message to large numbers of recipients for commercial advertising, proselytizing, or any other purpose.

Question 9

Bots

Answer 9

can be used for hacking, spamming, spying, interrupting, and compromising websites

Question 10

Security Recommendations

Answer 10

backup, anti-malware, two-factor authentication, up-to-date software, and avoid suspicious links.

Question 11

Network

Answer 11

a group of digital devices connected with each other through a transmission medium.

Question 12

Network Devices

Answer 12

computers, phones, printers, servers, etc. Nodes or hosts.

Question 13

Network Media

Answer 13

Cables: use electricity= 50-100 Mbps
Optical fiber: use light= 100 Mbps
Wifi: use radio frequency= 11-54 Mbps
Bluetooth: use radio frequency= 2 Mbps

Question 14

Network Interfaces

Answer 14

integrated network adapter, twisted pair cable, etc. Host to the medium.

Question 15

Network Protocol

Answer 15

agreed set of rules on how information is formatted. Common language.

Question 16

Data Sharing

Answer 16

The ability to share data

Question 17

Reliability

Answer 17

measured by the frequency of failure.

Question 18

Performance

Answer 18

measured by the quality of the service in terms of speed.

Question 19

Scalability

Answer 19

the ability to continue adding devices/work demand to a network.

Question 20

Network Backup

Answer 20

It’s the process of backing up network components and copying data onto another server.

Question 21

Security

Answer 21

protects the usability and integrity of your network and data.

Question 22

NIC

Answer 22

(Network Interface Card) hardware component that provides a computer network connection, wired or wireless.

Question 23

MAC Address

Answer 23

(Media Access Control address) a unique identifier assigned to a network interface card (NIC).

Question 24

Hub

Answer 24

a device used to connect internal network devices together

Question 25

Router

Answer 25

Is the device that allows the communication of the devices in a local network with the internet.

Question 26

Modem

Answer 26

a device that modulates and demodulates electrical signals sent through phone lines, coaxial cables, or other types of wiring. It transforms digital information from your computer into analog signals that can be transmitted over wires.

Question 27

Types

Answer 27

LAN: Local Area Network
MAN: Metropolitan Area Network
WAN: Wide Area Network

Question 28

IP address

Answer 28

(internet protocol address) a unique identifier number associated with a specific computer or network.

Question 29

Domain

Answer 29

the location of a website. Example: the domain name “google.com” points to the IP address “216.58.216.164”

Question 30

DNS

Answer 30

(Domain Name System) a directory service used for transforming alphanumeric domain names into numeric IP addresses.

Question 31

Network protocols

Answer 31

a standard set of rules that define how data is transmitted among devices, allowing them to communicate with each other.

Question 32

Application layer

Answer 32

applications such as web browsers and email programs operate at this layer. They use protocols such as HTTP, HTTPS, SMTP, and FTP among others.

Question 33

HTTP and HTTPS

Answer 33

(Hypertext Transfer Protocol) governs communication between a web server and a client. HTTPS (Secure) includes encryption to allow secure transactions over the internet

Question 34

VPN

Answer 34

(Virtual Private Network) provides high-security encryption from your device to the VPN server. The way they provide security is called tunneling, as if the data traveled through a tunnel where no one else has access to it.

Question 35

5G

Answer 35

enables a new kind of network that is designed to connect virtually everyone and everything together (IoT*) including machines, objects, and devices.

Question 36

Cloud vs On-Premise

Answer 36

enterprises have to decide if they want to manage their computer infrastructure locally or let a third party manage it for them.

Question 37

Computer infrastructure

Answer 37

are the servers and databases where all the applications and information of a company take place.

Question 38

Cloud advantages

Answer 38

dedicated experts team, staff available 24/7, backup services, cutting edge technology, flexible bandwidth, etc.

Question 39

On-Premise advantages

Answer 39

total ownership and control, and not dependable on the internet connection. It is used by companies who handle sensitive data like Banks and Governments.