Cisco CCNA 200-301 Questions & Answers

• Question 621:

  Which WAN topology provides a combination of simplicity quality, and availability?

  A. partial mesh

  B. full mesh

  C. point-to-point

  D. hub-and-spoke

  Correct Answer: C

  Simplicity : Point-to-point communication links require minimal expertise to install and maintain.

  Quality : Point-to-point communication links usually offer high quality service, if they have adequate bandwidth. The dedicated capacity removes latency or jitter between the endpoints.

  Availability : Constant availability is essential for some applications, such as e-commerce. Point-to-point communication links provide permanent, dedicated capacity which is required for VoIP or Video over IP.

• Question 622:

  If a switch port receives a new frame while it is actively transmitting a previous frame, how does it process the frames?

  A. The new frame is delivered first, the previous frame is dropped, and a retransmission request is sent.

  B. The previous frame is delivered, the new frame is dropped, and a retransmission request is sent.

  C. The new frame is placed in a queue for transmission after the previous frame.

  D. The two frames are processed and delivered at the same time.

  Correct Answer: C

  First in First out (FIFO) is default config for a queue

• Question 623:

  What are two functions of an SDN controller? (Choose two)

  A. Layer 2 forwarding

  B. coordinating VTNs

  C. tracking hosts

  D. managing the topology

  E. protecting against DDoS attacks

  Correct Answer: BD

• Question 624:

  Refer to the graphic.

  R1 is unable to establish an OSPF neighbor relationship with R3.

  What are possible reasons for this problem? (Choose two.)

  

  A. All of the routers need to be configured for backbone Area 1.

  B. R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3.

  C. A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established.

  D. The hello and dead interval timers are not set to the same values on R1 and R3.

  E. EIGRP is also configured on these routers with a lower administrative distance.

  F. R1 and R3 are configured in different areas.

  Correct Answer: DF

  This question is to examine the conditions for OSPF to create neighborhood. So as to make the two routers become neighbors, each router must be matched with the following items:

  1.

  The area ID and its types

  2.

  Hello and failure time interval timer

  3.

  OSPF Password (Optional)

• Question 625:

  Which resource is able to be shared among virtual machines deployed on the same physical server?

  A. disk

  B. applications

  C. VM configuration file

  D. operating system

  Correct Answer: A

• Question 626:

  Which implementation provides the strongest encryption combination for the wireless environment?

  A. WPA2 + AES

  B. WPA + AES

  C. WEP

  D. WPA + TKIP

  Correct Answer: A

• Question 627:

  Refer to the exhibit. After running the code in the exhibit, which step reduces the amount of data that the NETCONF server returns to the NETCONF client, to only the interface's configuration?

  

  A. Use the Ixml library to parse the data returned by the NETCONF server for the interface's configuration.

  B. Create an XML filter as a string and pass it to get_config() method as an argument.

  C. Create a JSON filter as a string and pass it to the get_config() method as an argument.

  D. Use the JSON library to parse the data returned by the NETCONF server for the interface's configuration.

  Correct Answer: D

• Question 628:

  What does a switch use to build its MAC address table?

  A. VTP

  B. DTP

  C. egress traffic

  D. ingress traffic

  Correct Answer: D

• Question 629:

  Which network plane is centralized and manages routing decisions?

  A. policy plane

  B. management plane

  C. control plane

  D. data plane

  Correct Answer: C

• Question 630:

  What does a router do when configured with the default DNS lookup settings, and a URL is entered on the CLI?

  A. initiates a ping request to the URL

  B. prompts the user to specify the desired IP address

  C. continuously attempts to resolve the URL until the command is cancelled

  D. sends a broadcast message in an attempt to resolve the URL

  Correct Answer: D