Cisco CCNA 200-301 Questions & Answers

• Question 831:

  What are two benefits of using the PortFast feature? (Choose two)

  A. Enabled interfaces are automatically placed in listening state

  B. Enabled interfaces come up and move to the forwarding state immediately

  C. Enabled interfaces never generate topology change notifications.

  D. Enabled interfaces that move to the learning state generate switch topology change notifications

  E. Enabled interfaces wait 50 seconds before they move to the forwarding state

  Correct Answer: BC

  Portfast does two things for us: Interfaces with portfast enabled that come up will go to forwarding mode immediately, the interface will skip the listening and learning state. A switch will never generate a topology change notification for an interface that has portfast enabled.

  https://networklessons.com/switching/cisco-portfast-configuration

• Question 832:

  A network administrator is asked to configure VLANS 2, 3 and 4 for a new implementation. Some ports must be assigned to the new VLANS with unused remaining. Which action should be taken for the unused ports?

  A. configure port in the native VLAN

  B. configure ports in a black hole VLAN

  C. configure in a nondefault native VLAN

  D. configure ports as access ports

  Correct Answer: B

  A black hole VLAN is a virtual LAN that is configured on a network switch, but it is not connected to any device or port. Traffic that is sent to a port in a black hole VLAN is discarded, effectively "sinking" into a "black hole." Black hole VLANs are sometimes used as a security measure to isolate or quarantine certain ports or devices, or to prevent unauthorized access or traffic on a network.

• Question 833:

  Refer to the exhibit.

  

  Router R4 is dynamically learning the path to the server. If R4 is connected to R1 via OSPF Area 20, to R2 via R2 BGP, and to R3 via EIGRP 777, which path is installed in the routing table of R4?

  A. the path through R1, because the OSPF administrative distance is 110

  B. the path through R2. because the IBGP administrative distance is 200

  C. the path through R2 because the EBGP administrative distance is 20

  D. the path through R3. because the EIGRP administrative distance is lower than OSPF and BGP

  Correct Answer: C

• Question 834:

  What is a function of the Cisco DNA Center Overall Health Dashboard?

  A. It provides a summary of the top 10 global issues.

  B. It provides detailed activity logging for the 10 devices and users on the network.

  C. It summarizes the operational status of each wireless devise on the network.

  D. It summarizes daily and weekly CPU usage for servers and workstations in the network.

  Correct Answer: A

• Question 835:

  Which protocol requires authentication to transfer a backup configuration file from a router to a remote server?

  A. DTP

  B. FTP

  C. SMTP

  D. TFTP

  Correct Answer: B

• Question 836:

  Where is the interface between the control plane and data plane within the softwaredefined architecture?

  A. control layer and the infrastructure layer

  B. application layer and the infrastructure layer

  C. control layer and the application layer

  D. application layer and the management layer

  Correct Answer: A

• Question 837:

  When a switch receives a frame for a known destination MAC address, how is the frame handed?

  A. sent to the port identified for the known MAC address

  B. broadcast to all ports

  C. forwarded to the first available port

  D. flooded to all ports except the one from which it originated

  Correct Answer: A

• Question 838:

  Why was the RFC 1918 address space defined?

  A. conserve public IPv4 addressing

  B. preserve public IPv6 address space

  C. reduce instances of overlapping IP addresses

  D. support the NAT protocol

  Correct Answer: A

  Private IPv4 addresses were developed to conserve IPv4 address space. NAT was developed as a way to use private addresses and allow for them to be able to communicate with other hosts outside of their LAN. C and D do not deal at all with private IP addresses

• Question 839:

  After installing a new Cisco ISE server, which task must the engineer perform on the Cisco WLC to connect wireless clients on a specific VLAN based on their credentials?

  A. Enable the allow AAA Override

  B. Enable the Even: Driven RRM.

  C. Disable the LAG Mode or Next Reboot.

  D. Enable the Authorized MIC APs against auth-list or AAA.

  Correct Answer: A

• Question 840:

  Which level of severity must be set to get informational syslogs?

  A. alert

  B. critical

  C. notice

  D. debug

  Correct Answer: D

  Specifying a level causes messages at that level and numerically lower levels to be displayed at the destination. From Table 3 : informational level = 6, debugging level = 7, notice/notifications level = 5 Severity Level 7 - Making informational, notice, Warning, Error, Critical, Alert, Emergency appear in the syslog https://www.cisco.com/c/en/us/td/docs/routers/access/wireless/software/guide/SysMsgLogging.html