CompTIA
Network+
Question Dumps
,Section 1 - Questions
Domain 1 - Networking Fundamentals
1. What is the purpose of a subnet mask?
A. To identify the network portion
B. To establish a secure VPN connection
C. To determine the broadcast address
D. To allocate IP addresses dynamically
2. Which of the following devices operates at Layer 2 of the OSI model?
A. Hub
B. Router
C. Switch
D. Bridge
3. What is the purpose of ARP (Address Resolution Protocol)?
A. To map IP addresses to MAC addresses
B. To route traffic between networks
C. To encrypt data in transit
D. To establish a secure VPN connection
4. Which of the following is a private IP address?
A. 192.168.1.1
B. 172.16.0.1
C. 10.0.0.1
D. 169.254.0.1
5. What is the purpose of ICMP (Internet Control Message Protocol)?
A. To diagnose network connectivity issues
, B. To encrypt data in transit
C. To authenticate users on the network
D. To route traffic between networks
6. Which OSI layer is responsible for translating between the network and data link layers?
A. Transport Layer
B. Network Layer
C. Presentation Layer
D. Data Link Layer
7. What is the purpose of the DNS (Domain Name System) in a network?
A. To map domain names to IP addresses
B. To encrypt data in transit
C. To authenticate users on the network
D. To route traffic between networks
8. What is the function of a MAC address in networking?
A. To uniquely identify a network interface
B. To encrypt data during transmission
C. To assign IP addresses to devices
D. To manage DNS resolution
9. What is the purpose of a gateway in networking?
A. To connect different networks
B. To encrypt data during transmission
C. To manage DNS resolution
D. To filter and forward internet requests
10. What is the default subnet mask for an IP address in the range 192.168.0.1 to 192.168.255.254?
3
, A. 255.255.0.0
B. 255.255.255.0
C. 255.255.255.255
D. 255.255.255.0
11. Which device operates at Layer 1 (Physical Layer) of the OSI model?
A. Hub
B. Switch
C. Router
D. Firewall
12. What is the primary purpose of the OSI (Open Systems Interconnection) model?
A. To provide a framework for understanding and designing networks
B. To filter and forward internet requests
C. To map IP addresses to MAC addresses
D. To manage DNS resolution
13. What is the purpose of a MAC address in networking?
A. To uniquely identify a network interface
B. To encrypt data during transmission
C. To assign IP addresses to devices
D. To manage DNS resolution
14. What is the purpose of a DNS (Domain Name System) server in a network?
A. To translate domain names into IP addresses
B. To encrypt data during transmission
C. To manage DHCP leases
D. To filter and forward internet requests
4
Network+
Question Dumps
,Section 1 - Questions
Domain 1 - Networking Fundamentals
1. What is the purpose of a subnet mask?
A. To identify the network portion
B. To establish a secure VPN connection
C. To determine the broadcast address
D. To allocate IP addresses dynamically
2. Which of the following devices operates at Layer 2 of the OSI model?
A. Hub
B. Router
C. Switch
D. Bridge
3. What is the purpose of ARP (Address Resolution Protocol)?
A. To map IP addresses to MAC addresses
B. To route traffic between networks
C. To encrypt data in transit
D. To establish a secure VPN connection
4. Which of the following is a private IP address?
A. 192.168.1.1
B. 172.16.0.1
C. 10.0.0.1
D. 169.254.0.1
5. What is the purpose of ICMP (Internet Control Message Protocol)?
A. To diagnose network connectivity issues
, B. To encrypt data in transit
C. To authenticate users on the network
D. To route traffic between networks
6. Which OSI layer is responsible for translating between the network and data link layers?
A. Transport Layer
B. Network Layer
C. Presentation Layer
D. Data Link Layer
7. What is the purpose of the DNS (Domain Name System) in a network?
A. To map domain names to IP addresses
B. To encrypt data in transit
C. To authenticate users on the network
D. To route traffic between networks
8. What is the function of a MAC address in networking?
A. To uniquely identify a network interface
B. To encrypt data during transmission
C. To assign IP addresses to devices
D. To manage DNS resolution
9. What is the purpose of a gateway in networking?
A. To connect different networks
B. To encrypt data during transmission
C. To manage DNS resolution
D. To filter and forward internet requests
10. What is the default subnet mask for an IP address in the range 192.168.0.1 to 192.168.255.254?
3
, A. 255.255.0.0
B. 255.255.255.0
C. 255.255.255.255
D. 255.255.255.0
11. Which device operates at Layer 1 (Physical Layer) of the OSI model?
A. Hub
B. Switch
C. Router
D. Firewall
12. What is the primary purpose of the OSI (Open Systems Interconnection) model?
A. To provide a framework for understanding and designing networks
B. To filter and forward internet requests
C. To map IP addresses to MAC addresses
D. To manage DNS resolution
13. What is the purpose of a MAC address in networking?
A. To uniquely identify a network interface
B. To encrypt data during transmission
C. To assign IP addresses to devices
D. To manage DNS resolution
14. What is the purpose of a DNS (Domain Name System) server in a network?
A. To translate domain names into IP addresses
B. To encrypt data during transmission
C. To manage DHCP leases
D. To filter and forward internet requests
4
