Cisco CCNA 200-301 Questions & Answers

• Question 891:

  What is the purpose of traffic shaping?

  A. to provide fair queuing for buffered flows

  B. to mitigate delays over slow links

  C. to limit the bandwidth that a flow can use

  D. to be a marking mechanism that identifies different flows

  Correct Answer: A

  Traffic shaping retains excess packets in a queue and then schedules the excess for later transmission over increments of time

• Question 892:

  Refer to the exhibit.

  

  A packet sourced from 10.10.10.1 is destined for 10.10.8.14. What is the subnet mask of the destination route?

  A. 255.255.254.0

  B. 255.255.255.240

  C. 255.255.255.248

  D. 255.255.255.252

  Correct Answer: B

  255.255.255.240, means /28. The IP 10.10.8.14 falls within the 10.10.8.0/28 range, which is: 10.10.8.0 network ID - 10.10.8.15 Broadcast IP.

• Question 893:

  An engineer needs to add an old switch back into a network. To prevent the switch from corrupting the VLAN database which action must be taken?

  A. Add the switch in the VTP domain with a lower revision number

  B. Add the switch with DTP set to dynamic desirable

  C. Add the switch in the VTP domain with a higher revision number

  D. Add the switch with DTP set to desirable

  Correct Answer: A

  One danger of VTP:

  If you connect an old switch with a higher revision number to your network (and the VTP domain name matches), all switches in the domain will sync their VLAN database to that switch.

• Question 894:

  Which JSON data type is an unordered set of attribute- value pairs?

  A. array

  B. string

  C. object

  D. Boolean

  Correct Answer: C

  JSON (JavaScript Object Notation) is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of attribute–value pairs and arrays (or other serializable values).

• Question 895:

  What occurs when overlapping Wi-Fi channels are implemented?

  A. The wireless network becomes vulnerable to unauthorized access.

  B. Wireless devices are unable to distinguish between different SSIDs

  C. Users experience poor wireless network performance.

  D. Network communications are open to eavesdropping.

  Correct Answer: C

• Question 896:

  Which technology allows for multiple operating systems to be run on a single host computer?

  A. virtual routing and forwarding

  B. network port ID visualization

  C. virtual device contexts

  D. server visualization

  Correct Answer: D

• Question 897:

  Which two QoS tools provides congestion management? (Choose two)

  A. CAR

  B. CBWFQ

  C. PQ

  D. PBR

  E. FRTS

  Correct Answer: BC

  Type of queuing methods are available:* First-In-First-Out (FIFO)* Priority Queuing (PQ)* Custom

  Queuing (CQ)* Weighted Fair Queuing (WFQ)* Class-Based Weighted Fair Queuing (CBWFQ)* LowLatency Queuing (LLQ)

• Question 898:

  What is a role of access points in an enterprise network?

  A. connect wireless devices to a wired network

  B. support secure user logins to devices or the network

  C. integrate with SNMP in preventing DDoS attacks

  D. serve as a first line of defense in an enterprise network

  Correct Answer: A

• Question 899:

  What is a similarity between OM3 and OM4 fiber optic cable?

  A. Both have a 50 micron core diameter

  B. Both have a 9 micron core diameter

  C. Both have a 62.5 micron core diameter

  D. Both have a 100 micron core diameter

  Correct Answer: A

  In terms of core sizes, OM1 and OM2 have a core of 62.5 microns while OM3, OM4, and OM5 have a core of 50 microns

• Question 900:

  What describes the operation of virtual machines?

  A. Virtual machines are responsible for managing and allocating host hardware resources

  B. In a virtual machine environment, physical servers must run one operating system at a time.

  C. Virtual machines are the physical hardware that support a virtual environment.

  D. Virtual machines are operating system instances that are decoupled from server hardware

  Correct Answer: D