netwoking quiz

1. What does TCP stand for?

• A) Transmission Control Protocol
  

• 
  B) Transfer Communication Protocol
  

• 
  C) Transport Control Program
  

• 
  D) Transmission Computer Protocol

2. What is the purpose of a subnet mask?

• A) To define the default gateway
  

• 
  B) To identify the local network address and divide it from host addresses
  

• 
  C) To hide the IP address
  

• 
  D) To convert IP addresses into domain names

3. Which device operates at the network layer of the OSI model?

• A) Router
  

• B) Switch

• C) Hub

• D) Repeater

4. Which protocol is used to find the MAC address of a device from its IP address?

• A) DNS
  

• B) DHCP

• C) ARP

• D) ICMP

5. What does DHCP stand for?

• A) Data Host Control Protocol
  

• 
  B) Dynamic Host Configuration Protocol
  

• 
  C) Domain Host Communication rotocol
  

• 
  D) Direct Host Connection Protocol

8. What is the primary purpose of DNS?

• A) To map domain names to IP addresses
  

• 
  B) To assign dynamic IP addresses
  

• 
  C) To monitor network traffic
  

• 
  D) To create a firewall

9. Which port number is used by HTTP?

• A) 25
  

• B) 80
  

• C) 443
  

• D) 21

11. In which layer of the OSI model do switches primarily operate?

• A) Layer 2
  

• B) Layer 3
  

• C) Layer 4
  

• D) Layer 1

12. Which type of cable is used for long-distance fiber-optic communication?

• A) Single-mode fiber
  

• B) Multi-mode fiber
  

• C) Coaxial cable
  

• D) Twisted pair cable

13. What is the main function of a firewall?

• A) To route packets across networks
  

• B) To filter incoming and outgoing traffic
  

• C) To connect multiple devices in a network
  

• D) To provide internet access