Cisco CCNA 200-301 Questions & Answers

• Question 811:

  In QoS, which prioritization method is appropriate for interactive voice and video?

  A. expedited forwarding

  B. traffic policing

  C. round-robin scheduling

  D. low-latency queuing

  Correct Answer: D

  Low Latency Queuing (LLQ) is the preferred queuing policy for VoIP audio. Given the stringent delay/jitter sensitive requirements of voice and video and the need to synchronize audio and video for CUVA, priority (LLQ) queuing is the recommended for all video traffic as well. Note that, for video, priority bandwidth is generally fudged up by 20% to account for the overhead.

• Question 812:

  What Is the path for traffic sent from one user workstation to another workstation on a separate switch In a Ihree-lter architecture model?

  A. access - core - distribution - access

  B. access - distribution - distribution - access

  C. access - core - access

  D. access -distribution - core - distribution - access

  Correct Answer: D

  Distribution switches normally don't have connections to other distribution layer switches, they only connect to access layer switches and core layer switches. If you're still in doubt, search Google images for "Cisco three tier architecture"

• Question 813:

  Which type of traffic Is sent with pure iPsec?

  A. broadcast packets from a switch that is attempting to locate a MAC address at one of several remote sites

  B. multicast traffic from a server at one site to hosts at another location

  C. spanning-tree updates between switches that are at two different sites

  D. unicast messages from a host at a remote site lo a server at headquarters

  Correct Answer: D

  Pure IPsec is typically used to secure unicast traffic between two endpoints. Unicast traffic refers to one-to-one communication between a specific sender and receiver. In this case, it would involve unicast messages from a host at a remote site to a server at headquarters.

  IPsec is a protocol suite used to provide secure communication over IP networks. It can be used to encrypt and authenticate IP packets, ensuring the confidentiality, integrity, and authenticity of the transmitted data. While IPsec can also support multicast and broadcast traffic, the term "pure IPsec" generally refers to the use of IPsec in a point-to-point unicast communication scenario.

• Question 814:

  Which virtual MAC address is used by VRRP group 1?

  A. 0050.0c05.ad81

  B. 0007.c061.bc01

  C. 0000.5E00.0101

  D. 0500.3976.6401

  Correct Answer: C

  VRRP = 0000.5E00.01XX (XX = GROUP ID)

  HSRP V1 = 0000.0C07.ACXX (XX = GROUP ID)

  HSRP V2 = 0000.0C9F.FXXX (XXX = GROUP ID)

  GLBP = 0007.B400.XXYY (XX = GROUP ID) (YY = AVF ID)

• Question 815:

  What are two characteristics of a public cloud Implementation? (Choose two.)

  A. It is owned and maintained by one party, but it is shared among multiple organizations.

  B. It enables an organization to fully customize how It deploys network resources.

  C. It provides services that are accessed over the Internet.

  D. It Is a data center on the public Internet that maintains cloud services for only one company.

  E. It supports network resources from a centralized third-party provider and privately-owned virtual resources

  Correct Answer: CE

• Question 816:

  How does WPA3 improve security?

  A. It uses SAE for authentication.

  B. It uses a 4-way handshake for authentication.

  C. It uses RC4 for encryption.

  D. It uses TKIP for encryption.

  Correct Answer: A

• Question 817:

  Where does wireless authentication happen?

  A. SSID

  B. radio

  C. band

  D. Layer 2

  Correct Answer: D

• Question 818:

  How are the switches in a spine-and-leaf topology interconnected?

  A. Each leaf switch is connected to one of the spine switches.

  B. Each leaf switch is connected to two spine switches, making a loop.

  C. Each leaf switch is connected to each spine switch.

  D. Each leaf switch is connected to a central leaf switch, then uplinked to a core spine switch.

  Correct Answer: C

  In spine-leaf two-tier architecture, every lower-tier switch (leaf layer) is connected to each of the top-tier switches (spine layer) in a full-mesh topology. The leaf layer consists of access switches that connect to devices such as servers. The spine layer is the backbone of the network and is responsible for interconnecting all leaf switches. Every leaf switch connects to every spine switch. Typically a Layer 3 network is established between leaves and spines, so all the links can be used simultaneously.

• Question 819:

  An engineer is configuring data and voice services to pass through the same port. The designated switch interface fastethernet0/1 must transmit packets using the same priority for data when they are received from the access port of the IP phone. Which configuration must be used?

  A. interface fastethernet0/1 switchport priority extend cos 7

  B. interface fastethernet0/1 switchport voice vlan untagged

  C. interface fastethernet0/1 switchport voice vlan dot1p

  D. interface fastethernet0/1 switchport priority extend trust

  Correct Answer: D

• Question 820:

  Which mode must be set for APs to communicate to a Wireless LAN Controller using the Control and Provisioning of Wireless Access Points (CAPWAP) protocol?

  A. bridge

  B. route

  C. autonomous

  D. lightweight

  Correct Answer: D