CCNA 200-301 PRACTICE EXAM ENSA V7.0

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CCNA (200-301) PRACTICE EXAM (ENSA V7.0)

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -100 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: A network engineer is designing a borderless switched network in a

hierarchical fashion. Which guideline might cause the engineer to implement a three-tier layer model?Fault isolation is one of the primary purposes of the distribution layer.xx Access layer L2 switches connect to distribution layer L3 switches, which implement routing, quality of service, and security.The core layer provides differentiated services to various classes of service applications at the edge of the network.xx The access layer provides aggregation of Layer 2 broadcast domains.

Answer:

The access layer provides aggregation of Layer 2 broadcast domains.

Explanation:

The access layer represents the network edge, where traffic enters or exits the campus network.Traditionally, the primary function of an access layer switch is to provide network access to the user.Access layer switches connect to distribution layer switches, which implement network foundation technologies such as routing, quality of service, and security.Question 2: When configuring a wireless LAN, to which category does a home wireless router belong?controller-based AP LWAPP-protocol based autonomous AP CAPWAP-protocol based

Answer:

autonomous AP Question 3: A technician is troubleshooting a network device and suspects there might be a duplex mismatch. What could cause a duplex mismatch?data corruption interconnection of unlike devices interface misconfiguration auto-MDIX detection failure

Answer:

interface misconfiguration Question 4: A network administrator is using the Cisco DNA Center to monitor network health and to troubleshoot network issues. Which area should the administrator use to perform these tasks?

ASSURANCE

PROVISION

PLATFORM

POLICY

Answer:

ASSURANCE

Question 5: What are two syntax rules for writing a JSON array? (Choose two.)

Values are enclosed in square brackets.A semicolon separates the key and list of values.A space must separate each value in the array Each value in the array is separated by a comma.The array can include only one value type.

Answer:

Values are enclosed in square brackets.Each value in the array is separated by a comma.Question 6: Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. Which task has to be performed on Router 1 for it to establish an OSPF adjacency with Router 2?Issue the clear ip ospf process command.Change the subnet mask of interface FastEthernet 0/0 to 255.255.255.0.Remove the passive interface command from interface FastEthernet 0/0.Add the network 10.0.1.0 0.0.0.255 area 0 command to the OSPF process.

Answer:

Change the subnet mask of interface FastEthernet 0/0 to 255.255.255.0.

Explanation:

Each interface on the link connecting the OSPF routers must be in the same subnet for an adjacency to be established. The IP address subnet mask on FastEthernet interface 0/0 must be changed to 255.255.255.0. The FastEthernet interface 0/0 is not passive. The 10.0.1.0/24 network is only connected to Router2 so should not be advertised by Router1. The clear ip ospf process command will start the OPSF process on Router1 but will not cause an adjacency to be established if the subnet mask mismatch on the connecting interfaces still exists.

Question 7: Which statement is an accurate description of a VPN type?

Site-to-site VPNs are typically created and secured using SSL.In a Clientless VPN the connection is secured using a web browser IPsec connection.In a Client-based VPN, users initiate a connection using VPN client software and the VPN gateway does the data encryption.In a site-to-site VPN internal hosts have no knowledge that a VPN is being used.

Answer:

In a Client-based VPN, users initiate a connection using VPN client software and the VPN gateway does the data encryption.Question 8: Which LAN attack enables traffic from one VLAN to be seen by another VLAN without the aid of a router?VLAN hopping attack ARP attack DHCP spoofing attack DHCP starvation attack

Answer:

VLAN hopping attack Question 9: Match the STP port state with the appropriate description. (Not all options are used.)

Answer:

Explanation:

The details of each port state:

Blocking The port is an alternate port and does not participate in frame forwarding. The port receives BPDU frames to determine the location and root ID of the root bridge. BPDU frames also determine which port roles each switch port should assume in the final active STP topology. With a Max Age timer of 20 seconds, a switch port that has not received an expected BPDU from a neighbor switch will go into the blocking state.Listening After the blocking state, a port will move to the listening state. The port receives BPDUs to determine the path to the root. The switch port also transmits its own BPDU frames and informs adjacent switches that the switch port is preparing to participate in the active topology.

Learning A switch port transitions to the learning state after the listening state. During the learning state, the switch port receives and processes BPDUs and prepares to participate in frame forwarding. It also begins to populate the MAC address table. However, in the learning state, user frames are not forwarded to the destination.Forwarding In the forwarding state, a switch port is considered part of the active topology. The switch port forwards user traffic and sends and receives BPDU frames.Disabled A switch port in the disabled state does not participate in spanning tree and does not forward frames.The disabled state is set when the switch port is administratively disabled.Question 10: An administrator who is troubleshooting connectivity issues on a switch notices that a switch port configured for port security is in the err-disabled state. After verifying the cause of the violation, how should the administrator re-enable the port without disrupting network operation?Reboot the switch.Issue the no switchport port-security violation shutdown command on the interface.Issue the no switchport port-security command, then re-enable port security.Issue the shutdown command followed by the no shutdown command on the interface.

Answer:

Issue the shutdown command followed by the no shutdown command on the interface.

Explanation:

To re-enable the port, use the shutdown interface configuration mode command (Figure 3). Then, use the no shutdown interface configuration command to make the port operational.Question 11: A group of network technicians is discussing IPv6 multicast processes. What is a feature of one type of IPv6 multicast address that should be discussed?A solicited-node multicast address is similar to the all-routers multicast address.It can be a source or a destination address.It has the prefix fe00::/8.The all-nodes multicast group has the same effect as an IPv4 broadcast address.

Answer:

A solicited-node multicast address is similar to the all-routers multicast address.

Question 12: Which is a characteristic of EtherChannel?

EtherChannel uses physical ports that have been upgraded to provide a faster connection.EtherChannel configuration is applied to each physical port.STP treats all interfaces in an EtherChannel bundle as a single logical link.STP will not block redundant EtherChannel bundles between two switches.

Answer:

EtherChannel uses physical ports that have been upgraded to provide a faster connection.