CCNA - Cisco Certified Network Associate Practice Questions: Network Fundamentals Domain
Test your CCNA - Cisco Certified Network Associate knowledge with 10 practice questions from the Network Fundamentals domain. Includes detailed explanations and answers.
CCNA - Cisco Certified Network Associate Practice Questions
Master the Network Fundamentals Domain
Test your knowledge in the Network Fundamentals domain with these 10 practice questions. Each question is designed to help you prepare for the CCNA - Cisco Certified Network Associate certification exam with detailed explanations to reinforce your learning.
Question 1
A technician is reviewing an IPv6 network configuration for a new site. The site requires a unique local address (ULA). What prefix should be used?
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Correct Answer: B
Explanation: Option B is correct because 'FD00::/8' is the designated prefix for IPv6 unique local addresses (ULAs), designed for local communications within a site. Option A is for link-local addresses, not site-specific. Option C is a global unicast prefix. Option D is for multicast addresses.
Question 2
In which scenario is a default gateway used?
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Correct Answer: B
Explanation: A default gateway is used to forward packets to destinations outside the local subnet, providing access to remote networks.
Question 3
While configuring IPv6 on a new interface, an engineer needs to ensure the interface auto-configures its address using router advertisements. What needs to be enabled?
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Correct Answer: B
Explanation: Option B is correct because SLAAC allows an interface to automatically configure its IPv6 address based on router advertisements without a stateful server. Option A is an older protocol not used for IPv6 autoconfiguration. Option C is a stateful method that typically requires additional server setup. Option D is irrelevant to IPv6 configuration.
Question 4
What is the effect of applying the command 'switchport mode access' on a switch port?
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Correct Answer: B
Explanation: CORRECT: 'switchport mode access' configures the port to belong to a single VLAN. Access mode does not support multiple VLANs. Correct, as it assigns the port to a single VLAN. Trunk mode is necessary for multiple VLANs, not access mode. The command does not disable the port.
Question 5
A network associate needs to verify the subnet mask used on a specific subnet in a branch office running IPv4. Which command will they use?
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Correct Answer: D
Explanation: Option D is correct because 'show ip interface' provides detailed information about the interfaces, including the subnet mask. Option A shows a brief overview of interfaces without subnet mask details. Option B includes the entire running configuration, which can be cumbersome to extract subnet information from. Option C shows routing information, which might not explicitly display the subnet mask in the context of interface configuration.
Question 6
Which addressing scheme uses a 128-bit address?
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Correct Answer: B
Explanation: IPv6 uses a 128-bit address space, providing significantly more addresses than IPv4's 32-bit addresses. MAC addresses are 48-bit, and IPX is an outdated network protocol.
Question 7
A technician is troubleshooting a connectivity issue on a router. The router has the following static route: 'ip route 172.16.0.0 255.255.0.0 192.168.1.1'. However, packets are not reaching the 172.16.0.0 network. What could be the issue?
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Correct Answer: D
Explanation: CORRECT: Option D is correct because if the router's interface to the next-hop is down, the static route will not be used. Incorrect because the next-hop IP could be correct if the interface is operational. Incorrect because the destination network is correctly configured. Incorrect because static routes do not require a metric. Correct because a down interface would prevent the route from being used.
Question 8
A network administrator needs to configure a router to allow only SSH access and disable Telnet access. Which command should be used?
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Correct Answer: B
Explanation: The command 'transport input ssh' allows only SSH access and disables Telnet.
Question 9
You are configuring a new network and need to assign IP addresses to devices. Which subnet mask would you use to create a network with 30 usable IP addresses?
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Correct Answer: A
Explanation: A subnet mask of 255.255.255.224 provides 32 IP addresses, of which 30 are usable for hosts.
Question 10
How does a router determine the best path for forwarding packets?
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Correct Answer: A
Explanation: Routers use the longest prefix match algorithm to determine the most specific route available in the routing table for forwarding packets.
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About CCNA - Cisco Certified Network Associate Certification
The CCNA - Cisco Certified Network Associate certification validates your expertise in network fundamentals and other critical domains. Our comprehensive practice questions are carefully crafted to mirror the actual exam experience and help you identify knowledge gaps before test day.