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Cisco Certified Network Associate (CCNA 200-301)
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Questions updated at Jul 10, 2026, 12:01 AM CDT
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Cisco Certified Network Associate (CCNA 200-301)
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Question 1 of 10
Objective 1.6
Network Fundamentals
A team proposes assigning a large IPv4 subnet to a link that only needs two router interface addresses. What should the engineer say about the proposal?
IPv4 subnet sizing should conserve addresses when a link needs only two router interface addresses. No, because it wastes address space is the right assessment for a large subnet that consumes far more usable addresses than the link requires.
Concept tested: Network Fundamentals (1.6)
Question 2 of 10
Objective 2.1
Network Access
Two switches must carry VLAN 100 and VLAN 200 traffic across the link between them. Which configuration approach is required?
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Concept tested: Network Access (2.1)
Question 3 of 10
Objective 1.4
Network Fundamentals
A switch link comes up, but file transfers are slow and the interface shows collisions even though both devices are connected to the same Ethernet segment. One endpoint is configured for full duplex and the other for half duplex. Which issue should the engineer identify?
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Concept tested: Network Fundamentals (1.4)
Question 4 of 10
Objective 2.2
Network Access
Hosts in VLAN 5 cannot communicate across a trunk between two switches, while other VLANs on the same trunk work normally. Which trunk configuration issue is most likely?
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Concept tested: Network Access (2.2)
Question 5 of 10
Objective 1.5
Network Fundamentals
A database replication process must track sessions, acknowledge received data, and retransmit missing segments. Which transport protocol should be used?
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Concept tested: Network Fundamentals (1.5)
Question 6 of 10
Objective 2.3
Network Access
Which global Cisco IOS command enables LLDP on the device?
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Concept tested: Network Access (2.3)
Question 7 of 10
Objective 1.8
Network Fundamentals
A network engineer is assigning an IPv6 prefix to a standard Ethernet LAN segment with end hosts. Which prefix length should normally be used for that LAN?
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Concept tested: Network Fundamentals (1.8)
Question 8 of 10
Objective 2.4
Network Access
An EtherChannel bundle is carrying more active member links than the design allows. Which adjustment would bring the bundle closer to the intended active-link count?
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Concept tested: Network Access (2.4)
Question 9 of 10
Objective 1.13
Network Fundamentals
A switch receives an Ethernet frame with a destination MAC address that is not in its MAC address table. What does the switch do with the unknown unicast frame?
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Concept tested: Network Fundamentals (1.13)
Question 10 of 10
Objective 2.5
Network Access
In Spanning Tree, a non-root port must prevent loops by not forwarding user traffic. Which port state provides that behavior?
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Concept tested: Network Access (2.5)
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UpdatedJul 10, 2026, 12:01 AM CDT
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Question 1 A team proposes assigning a large IPv4 subnet to a link that only needs two router interface addresses. What should the engineer say about the proposal?
Answer choices
- A. No, because it wastes address space
- B. Yes, because it maximizes address space
- C. It depends on future expansion plans
- D. Yes, because routing protocols automatically conserve subnet space
Correct answer
No, because it wastes address space
IPv4 subnet sizing should conserve addresses when a link needs only two router interface addresses. No, because it wastes address space is the right assessment for a large subnet that consumes far more usable addresses than the link requires.
Wrong-answer review
- B. Yes, because it maximizes address space: Maximizing address space is a wasteful-subnet misconception because conservation matters on small links.
- C. It depends on future expansion plans: Future expansion is a capacity-planning distraction because the stated link needs only two addresses.
- D. Yes, because routing protocols automatically conserve subnet space: Routing-protocol conservation is a routing misconception because protocols do not shrink assigned subnet sizes.
Question 2 Two switches must carry VLAN 100 and VLAN 200 traffic across the link between them. Which configuration approach is required?
Answer choices
- A. Configure each switch's default VLAN as VLAN 200 for voice traffic
- B. Set the native VLAN to VLAN 200 on all trunks connecting VLANs
- C. Assign an IP address from VLAN 100 subnet to a port in VLAN 200
- D. Create a trunk link between switches with both VLAN 100 and VLAN 200 allowed
Correct answer
Create a trunk link between switches with both VLAN 100 and VLAN 200 allowed
Question 3 A switch link comes up, but file transfers are slow and the interface shows collisions even though both devices are connected to the same Ethernet segment. One endpoint is configured for full duplex and the other for half duplex. Which issue should the engineer identify?
Answer choices
- A. Incorrect IP address configuration
- B. Faulty network cable
- C. Mismatched full-duplex and half-duplex settings
- D. Router software malfunction
Correct answer
Mismatched full-duplex and half-duplex settings
Question 4 Hosts in VLAN 5 cannot communicate across a trunk between two switches, while other VLANs on the same trunk work normally. Which trunk configuration issue is most likely?
Answer choices
- A. The native VLAN on both switches is set to VLAN 1 instead of VLAN 5
- B. Both switches have their trunk mode disabled for VLAN 5
- C. One switch has its trunk encapsulation type mismatched with the other
- D. VLAN 5 is not allowed on one or both switch interfaces
Correct answer
VLAN 5 is not allowed on one or both switch interfaces
Question 5 A database replication process must track sessions, acknowledge received data, and retransmit missing segments. Which transport protocol should be used?
Answer choices
- A. UDP
- B. TCP
- C. FTP
- D. HTTP
Correct answer
TCP
Question 6 Which global Cisco IOS command enables LLDP on the device?
Answer choices
- A. configure cdp
- B. lldp run
- C. set lldp enable
- D. activate cisco-discovery
Correct answer
lldp run
Question 7 A network engineer is assigning an IPv6 prefix to a standard Ethernet LAN segment with end hosts. Which prefix length should normally be used for that LAN?
Answer choices
- A. /56
- B. /64
- C. /127
- D. /48
Correct answer
/64
Question 8 An EtherChannel bundle is carrying more active member links than the design allows. Which adjustment would bring the bundle closer to the intended active-link count?
Answer choices
- A. Ensuring all participating ports have identical duplex settings
- B. Minimizing the number of active ports in the channel
- C. Maximizing port speeds on individual interfaces
- D. Increasing the number of channels for redundancy
Correct answer
Minimizing the number of active ports in the channel
Question 9 A switch receives an Ethernet frame with a destination MAC address that is not in its MAC address table. What does the switch do with the unknown unicast frame?
Answer choices
- A. The switch broadcasts the frame out all interfaces on the network
- B. The switch sends an ARP request to find the destination MAC address
- C. The switch forwards the frame out all ports except the receiving port
- D. The switch drops the frame and logs it as a security event
Correct answer
The switch forwards the frame out all ports except the receiving port
Question 10 In Spanning Tree, a non-root port must prevent loops by not forwarding user traffic. Which port state provides that behavior?
Answer choices
- A. Listening
- B. Blocking
- C. Forwarding
- D. Learning
Correct answer
Blocking
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