Cisco CCNA 200-301 Questions & Answers

• Question 1171:

  Which type of attack is mitigated by dynamic ARP inspection?

  A. DDoS

  B. malware

  C. man-in-the-middle

  D. worm

  Correct Answer: C

• Question 1172:

  Which type of API allows SDN controllers to dynamically make changes to the network?

  A. northbound API

  B. REST API

  C. SOAP API

  D. southbound API

  Correct Answer: D

  Cisco overview doc for SDN here: https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/VMDC/SDN/SDN.html

• Question 1173:

  Which type of port is used to connect the wired network when an autonomous AP maps two VLANs to its WLANs?

  A. acceVss

  B. LAG

  C. trunk

  D. EtherChannel

  Correct Answer: C

• Question 1174:

  Refer to the exhibit. Which router or router group are NTP clients?

  

  A. R1

  B. R2 and R3

  C. R1, R3, and R4

  D. R1, R2, and R3

  Correct Answer: D

  Pretty sure you have to have the NTP server configured before you can be a client

• Question 1175:

  What occurs to frames during the process of frame flooding?

  A. Frames are sent to all ports, including those that are assigned to other VLANs.

  B. Frames are sent to every port on the switch that has a matching entry in MAC address table.

  C. Frames are sent to every port on the switch in the same VLAN except from the originating port.

  D. Frames are sent to every port on the switch in the same VLAN.

  Correct Answer: C

  Ref: Flooding vs Broadcast - Cisco Community

  Post by Kristian Alexander Brown

  “…

  Flooding is sometimes known as an unknown unicast. This happens when a switch receives a frame with a destination mac address it does not have in the CAM table. It will flood it out all ports except the receiving port of the frame.

  …”

• Question 1176:

  Refer to Exhibit.

  

  The loopback1 interface of the Atlanta router must reach the loopback3 interface of the Washington router. Which two static host routes must be configured on the NEW York router? (Choose two)

  A. ipv6 route 2000::1/128 2012::1

  B. ipv6 route 2000::3/128 2023::3

  C. ipv6 route 2000::3/128 s0/0/0

  D. ipv6 route 2000::1/128 2012::2

  E. ipv6 route 2000::1/128 s0/0/1

  Correct Answer: AB

  ipv6 [loopback network] [serial interface IP] IPv6: /128 provides a single IPv6 address

• Question 1177:

  Which two statements about the purpose of the OSI model are accurate? (Choose two.)

  A. Defines the network functions that occur at each layer

  B. Facilitates an understanding of how information travels throughout a network

  C. Changes in one layer do not impact other layer

  D. Ensures reliable data delivery through its layered approach

  Correct Answer: AB

  OSI model is an structure for Both TCP and UDP. So it doesn't ensure reliabile delivery always (For UDP)

• Question 1178:

  Which three statements about network characteristics are true? (Choose three.)

  A. Speed is a measure of the data rate in bits per second of a given link in the network.

  B. Scalability indicates how many nodes are currently on the network.

  C. The logical topology is the arrangement of cables, network devices, and end systems.

  D. Availability is a measure of the probability that the network will be available for use when it is required.

  E. Reliability indicates the dependability of the components that make up the network.

  Correct Answer: ADE

• Question 1179:

  Which statement about static and dynamic routes is true?

  A. Dynamic routes are manually configured by a network administrator, while static routes are automatically learned and adjusted by a routing protocol.

  B. Static routes are manually configured by a network administrator, while dynamic routes are automatically learned and adjusted by a routing protocol.

  C. Static routes tell the router how to forward packets to networks that are not directly connected, while dynamic routes tell the router how to forward packets to networks that are directly connected.

  D. Dynamic routes tell the router how to forward packets to networks that are not directly connected, while static routes tell the router how to forward packets to networks that are directly connected.

  Correct Answer: B

• Question 1180:

  Which three statements about MAC addresses are correct? (Choose three.)

  A. To communicate with other devices on a network, a network device must have a unique MAC address.

  B. The MAC address is also referred to as the IP address.

  C. The MAC address of a device must be configured in the Cisco IOS CLI by a user with administrative privileges.

  D. A MAC address contains two main components, the first of which identifies the manufacturer of the hardware and the second of which uniquely identifies the hardware.

  E. An example of a MAC address is 0A:26:B8: D6:65:90.

  F. A MAC address contains two main components, the first of which identifies the network on which the host resides and the second of which uniquely identifies the host on the network.

  Correct Answer: ADE