300-320 practice test

1. Question 1 · 1

   An engineer notices that many BGP peers utilize the same configuration parameters. What can the engineer configure to simplify BGP neighbor statements and generate more efficient BGP peer updates?

   Choose one answer.

   • peer groups
   • policy templates
   • session templates
   • peer address families

2. Question 2 · 1

   Which QoS mechanism uses RSVP?

   Choose one answer.

   • IntServ
   • DiffServ
   • CoS
   • ToS

3. Question 3 · 1

   A company requires redundancy for its multihomed BGP external connections. What two features can be configured on the WAN routers to automate failover for both outbound and inbound traffic? (Choose two.)

   Choose all answers that apply.

   • AS path prepending
   • local preference
   • floating static route
   • HSRP
   • MED
   • weight

4. Question 4 · 1

   What are two methods of ensuring that the multicast RPF check passes without changing the unicast routing table? (Choose two.)

   Choose all answers that apply.

   • disabling the interface of the router back to the multicast source
   • disabling BGP routing protocol
   • implementing MBGP
   • implementing OSPF routing protocol
   • implementing static mroutes

5. Question 5 · 1

   Which option is correct when using Virtual Switching System to combine two physical switches into one logical switch?

   Choose one answer.

   • Both control planes forward traffic simultaneously.
   • Only one control plane is active, while the other control plane is in standby.
   • Only one data plane forwards traffic, while the other data plane is in standby.
   • Control planes are combined into one virtual control plane.

6. Question 6 · 1

   Which virtualization technology uses Layer 3 BFD to detect network failures between network devices?

   Choose one answer.

   • VTP
   • VSS
   • vPC
   • Cisco Fabric Path

7. Question 7 · 1

   A network engineer is designing a network that must incorporate active-active redundancy to eliminate disruption when a link failure occurs between the core and distribution layer. What two technologies will allow this? (Choose two.)

   Choose all answers that apply.

   • Equal Cost Multi-Path (ECMP)
   • Rapid Spanning Tree Protocol Plus (RSTP+)
   • Hot Standby Routing Protocol (HSRP)
   • Rapid Spanning Tree Protocol (RSTP)
   • Multichassis EtherChannel (MEC)

8. Question 8 · 1

   What is an advantage of using the vPC feature in a data center environment?

   Choose one answer.

   • supports FHRP
   • The two switches form a single control plane
   • All available uplink bandwidth is utilized
   • A single IP is used for management of both devices

9. Question 9 · 1

   A network engineer must select a network technology to simplify the extension of Layer 2 networks between data centers with a requirement of less than 4,000 VLANs. Which two network technologies accomplish this requirement? (Choose two.)

   Choose all answers that apply.

   • MPLS
   • L2TP
   • VXLAN
   • LISP

10. Question 10 · 1

    An organization is acquiring another company and merging the two company networks. No subnets overlap, but the engineer must limit the networks advertised to the new organization. Which feature implements this requirement?

    Choose one answer.

    • route filtering
    • stub area
    • passive interface
    • interface ACL

11. Question 11 · 1

    A company requires a simple network access control solution that allows for software defined segmentation based on user and device contextual information. Which two technologies must be implemented to meet these requirements? (Choose two.)

    Choose all answers that apply.

    • Clean Access
    • Identity Service Engine
    • TrustSec
    • Secure Access Control System
    • NAC Agent

    Read explanation

    References:

12. Question 12 · 1

    Multicast has been enabled and configured in the Enterprise, and PIM Sparse-mode has been enabled on all VLANs. What feature is required to stop multicast traffic from being broadcasted on the access layer switches?

    Choose one answer.

    • Multicast boundary filter
    • PIM dense-mode
    • IGMP snooping
    • Dynamic ARP inspection

13. Question 13 · 1

    An engineer has implemented a QoS architecture that requires a signaling protocol to tell routers which flows of packets require special treatment. Which two mechanisms are important building blocks to establishing and maintaining QoS in this architecture? (Choose two.)

    Choose all answers that apply.

    • policing
    • classification
    • admission control
    • tagging
    • low-latency queuing
    • resource reservation
    • packetscheduling

14. Question 14 · 1

    Which Nexus feature enables you to support server connectivity with one topology and address requirement for both high availability and high bandwidth?

    Choose one answer.

    • vPC
    • vPC+
    • Stackwise
    • EvPC

15. Question 15 · 1

    Refer to the exhibit. A customer discovers router R1 remains active even when the R1 uplink (F0/1) is down. Which two comments can be applied to R1 to allow R2 to take over as the HSRP active? (Choose two.)

    Choose all answers that apply.

    

    • standby 10 track 50 shutdown
    • standby 10 track 50 decrement 20
    • track 50 ip route 10.10.10.0/24 reachability
    • standby 10 track 50
    • track 50 interface Fa0/1 ip routing

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