Objective 6.0

Network Fundamentals

200-901 Practice Questions

Use this page to practise Network Fundamentals questions for this certification. Focus on how the exam tests network fundamentals in scenario format — understanding the why behind each answer builds more durable knowledge than memorising options.

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What this objective tests

200-901 Network Fundamentals — Key Topics

Network Fundamentals questions on this certification test your ability to deploy and manage network fundamentals concepts in scenario-based situations.

Core Network Fundamentals concepts and how they apply in real-world cloud scenarios.
How to deploy network fundamentals correctly and verify the outcome.
Troubleshooting network fundamentals issues by interpreting error output and system state.
Cloud best practices and Network Fundamentals design trade-offs tested by this certification.

Common exam traps

Where candidates lose marks on Network Fundamentals

⚠Selecting the most expensive service when a simpler managed option meets the requirement.
⚠Forgetting that cloud resources must be explicitly secured — defaults are rarely secure.
⚠Choosing a global service fix when the issue is region-specific.
⚠Overlooking cost implications of cross-region data transfer in architecture questions.

200-901 Network Fundamentals — Practice Questions

30 questions from this objective

Question 2mediummultiple choice

Network Fundamentals

200-901 Network Fundamentals — Key Topics

Where candidates lose marks on Network Fundamentals

200-901 Network Fundamentals — Practice Questions

A network engineer is troubleshooting slow connectivity between two sites connected via a WAN link. The engineer suspects packet loss due to collisions. Which interface counter should be examined to confirm this?

A DevOps team is deploying a containerized application across multiple hosts. They need to ensure that traffic between containers on the same host is isolated from other tenants. Which network implementation best meets this requirement?

An engineer notices that a switch port configured as an access port in VLAN 10 is not forwarding traffic. The switch shows the port is up/up. What is the most likely cause?

A network administrator is configuring SNMPv3 on a router for secure monitoring. Which combination of parameters is required to ensure authentication and encryption?

A technician needs to verify the IP address of a remote server using DNS. Which command should be used on a Cisco IOS device?

A network engineer is designing a data center network with leaf-spine topology. The requirement is to minimize latency and maximize bandwidth for east-west traffic. Which type of links should be used between leaf and spine switches?

An organization uses Cisco ISE for network access control. A user reports inability to access the network. The switch port shows the authenticator state as 'connecting'. What does this indicate?

Which TWO statements are true about VXLAN? (Choose two.)

Which THREE factors influence the convergence time of OSPF in a large enterprise network? (Choose three.)

Which TWO functions are performed by the data plane in a network device? (Choose two.)

An engineer configures a trunk port as shown. A device connected to this port sends an untagged frame. Which VLAN will the switch associate the frame with?

Exhibit

Based on the routing table, what type of OSPF route is the default route (0.0.0.0/0)?

Exhibit

Exhibit

Drag and drop the steps to configure a Cisco switch for remote management (SSH) into the correct order.

Match each Cisco platform to its primary use case.

An engineer needs to identify which hosts are reachable in a 10.0.0.0/24 network using an automated script that does not require any credentials on the target devices. Which protocol is best suited for this task?

A developer is writing an application that needs to send a large amount of data reliably over a network. Which transport layer protocol should the developer use?

A network automation script uses RESTCONF to configure a router. The script receives an HTTP 409 Conflict response. What is the most likely cause?

An engineer wants to verify that a switch port is configured as an access port in VLAN 10. Which command provides this information?

A company has multiple subnets. A device in subnet 192.168.1.0/24 needs to communicate with a device in subnet 192.168.2.0/24. What is required for this communication?

An application sends a packet with destination IP 10.0.0.10. The sending host's routing table has a default gateway of 10.0.0.1. The host's ARP cache is empty. What is the next step after the host determines the packet should go to the default gateway?

Which IPv6 address type is equivalent to a private IPv4 address?

An engineer needs to transfer a router configuration file to a server in the same network using a simple protocol that does not require authentication. Which protocol is best?

A developer is building a chat application that requires low-latency communication, and occasional packet loss is acceptable. Which transport protocol should the developer choose?

Which TWO of the following are examples of application layer protocols?

All 200-901 Objectives

Network Fundamentals

200-901 Network Fundamentals — Key Topics

Where candidates lose marks on Network Fundamentals

200-901 Network Fundamentals — Practice Questions

A network engineer is troubleshooting slow connectivity between two sites connected via a WAN link. The engineer suspects packet loss due to collisions. Which interface counter should be examined to confirm this?

A DevOps team is deploying a containerized application across multiple hosts. They need to ensure that traffic between containers on the same host is isolated from other tenants. Which network implementation best meets this requirement?

An engineer notices that a switch port configured as an access port in VLAN 10 is not forwarding traffic. The switch shows the port is up/up. What is the most likely cause?

A network administrator is configuring SNMPv3 on a router for secure monitoring. Which combination of parameters is required to ensure authentication and encryption?

A technician needs to verify the IP address of a remote server using DNS. Which command should be used on a Cisco IOS device?

A network engineer is designing a data center network with leaf-spine topology. The requirement is to minimize latency and maximize bandwidth for east-west traffic. Which type of links should be used between leaf and spine switches?

An organization uses Cisco ISE for network access control. A user reports inability to access the network. The switch port shows the authenticator state as 'connecting'. What does this indicate?

Which TWO statements are true about VXLAN? (Choose two.)

Which THREE factors influence the convergence time of OSPF in a large enterprise network? (Choose three.)

Which TWO functions are performed by the data plane in a network device? (Choose two.)

An engineer configures a trunk port as shown. A device connected to this port sends an untagged frame. Which VLAN will the switch associate the frame with?

Exhibit

Based on the routing table, what type of OSPF route is the default route (0.0.0.0/0)?

Exhibit

Exhibit

Drag and drop the steps to configure a Cisco switch for remote management (SSH) into the correct order.

Match each Cisco platform to its primary use case.

An engineer needs to identify which hosts are reachable in a 10.0.0.0/24 network using an automated script that does not require any credentials on the target devices. Which protocol is best suited for this task?

A developer is writing an application that needs to send a large amount of data reliably over a network. Which transport layer protocol should the developer use?

A network automation script uses RESTCONF to configure a router. The script receives an HTTP 409 Conflict response. What is the most likely cause?

An engineer wants to verify that a switch port is configured as an access port in VLAN 10. Which command provides this information?

A company has multiple subnets. A device in subnet 192.168.1.0/24 needs to communicate with a device in subnet 192.168.2.0/24. What is required for this communication?

An application sends a packet with destination IP 10.0.0.10. The sending host's routing table has a default gateway of 10.0.0.1. The host's ARP cache is empty. What is the next step after the host determines the packet should go to the default gateway?

Which IPv6 address type is equivalent to a private IPv4 address?

An engineer needs to transfer a router configuration file to a server in the same network using a simple protocol that does not require authentication. Which protocol is best?

A developer is building a chat application that requires low-latency communication, and occasional packet loss is acceptable. Which transport protocol should the developer choose?

Which TWO of the following are examples of application layer protocols?

All 200-901 Objectives