Quiz: QZ-20251027-44704

Quiz Details

QZ-20251027-44704

Topics:

Computer Network Routing Switching

Difficulty: Level 2 - Easy

Questions: 20

Generated: October 27, 2025 at 12:28 PM

Generated by: Guest User

Instructions: Select an answer for each question and click "Check Answer" to see if you're correct. Then view the explanation to learn more!

1 What does LAN stand for?

A) Logical Area Network

B) Local Area Network

C) Large Area Network

D) Long Area Network

Correct Answer: B
Explanation: LAN stands for Local Area Network, which is a network that connects computers within a limited area such as a home, school, or office.

2 Which device is used to connect multiple devices within a LAN?

A) Switch

B) Router

C) Firewall

D) Modem

Correct Answer: A
Explanation: A switch is used to connect multiple devices within a LAN, allowing them to communicate with each other.

3 What is the main purpose of a router?

A) To store data

B) To amplify signals

C) To connect different networks

D) To block unauthorized access

Correct Answer: C
Explanation: The primary function of a router is to connect different networks and route data between them.

4 Which protocol is commonly used for sending emails?

A) HTTP

B) FTP

C) POP3

D) SMTP

Correct Answer: D
Explanation: SMTP (Simple Mail Transfer Protocol) is the standard protocol used for sending emails across the Internet.

5 What does the term 'bandwidth' refer to?

A) The speed of the Internet connection

B) The type of network connection

C) The physical distance of the network

D) The amount of data that can be transmitted in a given time

Correct Answer: D
Explanation: Bandwidth refers to the amount of data that can be transmitted over a network in a given amount of time, typically measured in bits per second (bps).

6 Which of the following is NOT a type of network topology?

A) Mesh

B) Circle

C) Bus

D) Star

Correct Answer: B
Explanation: Circle is not recognized as a standard network topology. Common topologies include star, bus, and mesh.

7 What is a subnet mask used for?

A) To improve network speed

B) To assign IP addresses

C) To encrypt data

D) To identify the network and host portion of an IP address

Correct Answer: D
Explanation: A subnet mask is used to distinguish the network and host portions of an IP address, facilitating routing within a network.

8 What is the function of a DHCP server?

A) To provide IP addresses to devices on a network

B) To secure a network

C) To monitor network traffic

D) To connect to the Internet

Correct Answer: A
Explanation: A DHCP (Dynamic Host Configuration Protocol) server automatically assigns IP addresses to devices on a network.

9 Which layer of the OSI model is responsible for routing?

A) Network Layer

B) Application Layer

C) Data Link Layer

D) Transport Layer

Correct Answer: A
Explanation: The Network Layer (Layer 3) of the OSI model is responsible for routing data packets between devices across different networks.

10 What is the purpose of a firewall in a network?

A) To increase bandwidth

B) To provide data storage

C) To protect the network from unauthorized access

D) To boost signal strength

Correct Answer: C
Explanation: A firewall is a security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

11 Which cable type is commonly used in Ethernet networks?

A) Twisted pair cable

B) Fiber optic cable

C) HDMI cable

D) Coaxial cable

Correct Answer: A
Explanation: Twisted pair cable is the most commonly used cable type in Ethernet networks due to its cost-effectiveness and reliability.

12 What does the term 'IP address' stand for?

A) Internet Protocol Address

B) Interconnected Protocol Address

C) Internal Protocol Address

D) Internet Provider Address

Correct Answer: A
Explanation: IP address stands for Internet Protocol Address, which is a unique identifier for a device on a network.

13 Which of the following is a common wireless networking standard?

A) 802.15

B) 802.11

C) 802.3

D) 802.16

Correct Answer: B
Explanation: The 802.11 standard is widely used for wireless networking, commonly known as Wi-Fi.

14 What does NAT stand for in networking?

A) Network Application Tool

B) Network Address Translation

C) Node Address Transfer

D) Network Access Time

Correct Answer: B
Explanation: NAT stands for Network Address Translation, a method used to remap one IP address space into another.

15 Which of the following protocols is used to retrieve emails from a server?

A) HTTP

B) SMTP

C) FTP

D) IMAP

Correct Answer: D
Explanation: IMAP (Internet Message Access Protocol) is used to retrieve and manage emails from a mail server.

16 What is the primary function of a modem?

A) To manage network traffic

B) To create a network

C) To connect to the Internet

D) To store data

Correct Answer: C
Explanation: A modem modulates and demodulates signals for data transmission over telephone lines, enabling connection to the Internet.

17 Which network topology connects all devices to a single central hub?

A) Mesh

B) Star

C) Ring

D) Bus

Correct Answer: B
Explanation: In a star topology, all devices are connected to a central hub or switch, facilitating easy management and troubleshooting.

18 Which of the following is a benefit of using switches in a network?

A) Requires more cables

B) Eliminates the need for routers

C) Decreases network speed

D) Increases bandwidth by preventing collisions

Correct Answer: D
Explanation: Switches improve network performance by increasing bandwidth and reducing collisions by creating separate collision domains for each connected device.

19 Which protocol is used for secure data transmission over the Internet?

A) FTP

B) HTTP

C) SMTP

D) HTTPS

Correct Answer: D
Explanation: HTTPS (Hypertext Transfer Protocol Secure) is an extension of HTTP that encrypts data for secure transmission over the Internet.

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