Réseaux

Question 1

What is a system in the context of information technology?

Answer 1

A system is a set of interconnected components that work together to achieve a common goal.

Question 2

True or False: A network is only comprised of physical devices.

Answer 2

False

Question 3

Fill in the blank: The primary function of a network is to facilitate __________ between devices.

Answer 3

communication

Question 4

What does LAN stand for?

Answer 4

Local Area Network

Question 5

Which of the following is a type of network topology? A) Star B) Circle C) Square D) Triangle

Answer 5

A) Star

Question 6

What is the purpose of a router in a network?

Answer 6

To direct data packets between different networks.

Question 7

True or False: Protocols are rules that define how data is transmitted over a network.

Answer 7

True

Question 8

What does the acronym TCP/IP stand for?

Answer 8

Transmission Control Protocol/Internet Protocol

Question 9

Short Answer: Name one advantage of using a wireless network.

Answer 9

Increased mobility for users.

Question 10

Fill in the blank: A __________ is a device that connects multiple computers to a network and forwards data to the appropriate destination.

Answer 10

switch

Question 11

What is the main purpose of network security?

Answer 11

To protect data and resources from unauthorized access and attacks.

Question 12

Which layer of the OSI model is responsible for data encryption?

Answer 12

Presentation layer

Question 13

True or False: IPv6 provides a larger address space than IPv4.

Answer 13

True

Question 14

What is the function of a firewall in a network?

Answer 14

To monitor and control incoming and outgoing network traffic based on security rules.

Question 15

Fill in the blank: __________ is the process of converting data from one format to another.

Answer 15

Encoding

Question 16

What does the acronym DNS stand for?

Answer 16

Domain Name System

Question 17

Which of the following is a common network protocol? A) FTP B) HTML C) CSS D) XML

Answer 17

A) FTP

Question 18

Short Answer: What is bandwidth?

Answer 18

The maximum rate of data transfer across a network.

Question 19

True or False: A VPN provides a secure connection over a less secure network.

Answer 19

True

Question 20

What is the primary purpose of an IP address?

Answer 20

To identify a device on a network.

Question 21

Fill in the blank: __________ networks are typically used for connecting devices in a limited geographical area.

Answer 21

Local area

Question 22

What does NAT stand for?

Answer 22

Network Address Translation

Question 23

Which layer of the OSI model deals with routing?

Answer 23

Network layer

Question 24

True or False: Peer-to-peer networks require a central server.

Answer 24

False

Question 25

What is the purpose of a subnet mask?

Answer 25

To divide an IP address into network and host portions.

Question 26

Short Answer: Name one type of network attack.

Answer 26

Denial of Service (DoS) attack.

Question 27

Fill in the blank: __________ is a secure method for accessing a network remotely.

Answer 27

SSH (Secure Shell)

Question 28

What is a network system?

Answer 28

A network system is a collection of hardware and software components that enables communication and data exchange between devices.

Question 29

True or False: A router connects different networks.

Answer 29

True

Question 30

Fill in the blank: The _______ layer of the OSI model is responsible for data transmission over a physical medium.

Answer 30

Physical

Question 31

What does IP stand for in networking?

Answer 31

Internet Protocol

Question 32

Which device is used to connect multiple devices within the same network?

Answer 32

Switch

Question 33

True or False: A firewall is used to enhance network security.

Answer 33

True

Question 34

What is the primary function of a modem?

Answer 34

To modulate and demodulate signals for data transmission over telephone lines or cable.

Question 35

Multiple Choice: Which protocol is commonly used for secure data transmission? A) HTTP B) FTP C) HTTPS D) SMTP

Answer 35

C) HTTPS

Question 36

What is a subnet?

Answer 36

A subnet is a segmented piece of a larger network that allows for better organization and management of IP addresses.

Question 37

True or False: The Transport layer in the OSI model is responsible for session management.

Answer 37

False

Question 38

What does DNS stand for?

Answer 38

Domain Name System

Question 39

Fill in the blank: A _______ is an address that identifies a device on a network.

Answer 39

IP address

Question 40

What is the purpose of network protocols?

Answer 40

Network protocols define the rules and conventions for communication between network devices.

Question 41

Multiple Choice: Which of the following is a type of network topology? A) Star B) Circle C) Square D) Triangle

Answer 41

A) Star

Question 42

What is bandwidth in networking?

Answer 42

Bandwidth refers to the maximum rate of data transfer across a network path.

Question 43

True or False: IPv4 addresses are 128 bits long.

Answer 43

False

Question 44

What is NAT?

Answer 44

Network Address Translation, a method used to remap one IP address space into another.

Question 45

Fill in the blank: A _______ is a network device that forwards data packets between computer networks.

Answer 45

Router

Question 46

What does VPN stand for?

Answer 46

Virtual Private Network

Question 47

Multiple Choice: Which layer of the OSI model is responsible for error checking? A) Application B) Transport C) Network D) Data Link

Answer 47

B) Transport

Question 48

What is a packet?

Answer 48

A packet is a formatted unit of data carried by a packet-switched network.

Question 49

True or False: Ethernet is a protocol used for wireless networking.

Answer 49

False

Question 50

What is the purpose of a network switch?

Answer 50

To receive incoming data packets and redirect them to their destination on a local area network.

Question 51

Fill in the blank: The _______ layer provides end-to-end communication services for applications.

Answer 51

Transport

Question 52

What is a MAC address?

Answer 52

A Media Access Control address is a unique identifier assigned to network interfaces for communications at the data link layer.

Question 53

Multiple Choice: Which of the following is an example of a network security measure? A) Encryption B) Compression C) Formatting D) Deletion

Answer 53

A) Encryption

Question 54

What is the function of DHCP?

Answer 54

Dynamic Host Configuration Protocol automatically assigns IP addresses to devices on a network.