Cisco 300-320 Online Practice Questions and Exam Preparation

Cisco 300-320 Online Questions & Answers

• Question 321:

  Which two ways to support secure transport of multicast traffic are true? (Choose two.)

  A. Use spoke-to-spoke design.
  B. Use IPsec over GRE tunnel.
  C. Use GET VPN.
  D. Use NBMA instead of broadcast.
  E. Disable encryption for multicast traffic.
  B. Use IPsec over GRE tunnel.
  C. Use GET VPN.

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  GET VPN = Group Encrypted Transport VPN. It is tunnel-less and can support multicast traffic

• Question 322:

  An engineer is developing an enterprise strategy for IPv6 migration. The legacy IPv4 environment should not be in any way affected by migration to avoid production outages. Which deployment model accomplishes this goal?

  A. hybrid
  B. distributed
  C. dual-stack
  D. service block
  C. dual-stack

• Question 323:

  Refer to the exhibit. Which of the following two are advantages of Server virtualization using VMware vSphere? (Choose two) A. Retains the one-to-one relationship between switch ports and functional servers

  

  B. Enables the live migration of a virtual server from one physical server to another without disruption to users or loss of services
  C. The access layer of the network moves into the vSphere ESX servers, providing streamlined vSphere management
  D. Provides management functions including the ability to run scripts and to install third-party agents for hardware monitoring, backup, or systems management
  E. New functional servers can be deployed with minimal physical changes on the network
  B. Enables the live migration of a virtual server from one physical server to another without disruption to users or loss of services
  C. The access layer of the network moves into the vSphere ESX servers, providing streamlined vSphere management

• Question 324:

  Two Cisco switches with 1 SUP and many 10G line-card ports for each switch, run in VSS mode. Why don't connect all VSL to SUP (Choose 1)

  A. The SUP diversity...
  B. Bandwidth congestion at SUP
  C. Pending
  D. Qos must be configured on both
  A. The SUP diversity...

• Question 325:

  An engineer must add a new firewall in front of the public web server infrastructure in an ACI network. Which ACI function is used to accomplish this requirement?

  A. Application Network Profile
  B. Service chaining
  C. Static binding
  D. Layer 4-7 services
  D. Layer 4-7 services

• Question 326:

  Which protocol should be configured if a network administrator wants to configure multiple physical gateways to participate simultaneously in packet forwarding?

  A. HSRP
  B. VRRP
  C. GLBP
  D. VTP
  C. GLBP

• Question 327:

  Refer to the exhibit.

  

  How does the network treat excess SIP traffic when congestion occurs?

  A. It queues the traffic by using a DSCP value of CS1.
  B. It assigns the default DSCP value to the traffic.
  C. It drops the traffic.
  D. It transmits the traffic by using a QoS value of 1.
  D. It transmits the traffic by using a QoS value of 1.

• Question 328:

  An engineer is working on a design solution for a large hub-and-spoke EIGRP network. Which feature helps to make this design more stable while also reducing resource utilization?

  A. QoS
  B. network summarization
  C. stub routing
  D. route filtering
  C. stub routing

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  Reference: https://www.cisco.com/en/US/technologies/tk648/tk365/technologies_white_paper0900aecd8023df6f.html

• Question 329:

  About DDOS attack .What you can do on device to block DDOS attack ?

  A. Policy map
  B. ACL
  C. Control plane policy
  D. Used zoned firewall on router
  C. Control plane policy

• Question 330:

  What is the outcome when RPF check passes successfully?

  A. Packet is dropped because it arrived on the interface that used to forward the packet back to source.
  B. Packet is dropped because it arrived on the interface that used to forward the packet back to destination.
  C. Packet is forwarded because it arrived on the interface that used to forward the packet back to destination
  D. Packet is forwarded because it arrived on the interface that used to forward the packet back to source
  D. Packet is forwarded because it arrived on the interface that used to forward the packet back to source

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  Routers perform a reverse path forwarding (RPF) check to ensure that arriving multicast packets were received through the interface that is on the most direct path to the source that sent the packets. An RPF check is always performed regarding the incoming interface, which is considered to be the RPF interface. The RPF check will succeed if the incoming interface is the shortest path to the source. The router determines the RPF interface by the underlying unicast routing protocol or the dedicated multicast routing protocol in cases where one exists. An example of a dedicated multicast routing protocol is MP-BGP. It is important to note that the multicast routing protocol relies on the underlying unicast routing table. Any change in the unicast routing table immediately triggers an RPF recheck on most modern routers.