Cisco 300-320 Online Practice Questions and Exam Preparation

Cisco 300-320 Online Questions & Answers

• Question 121:

  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.)

  A. Equal Cost Multi-Path (ECMP)
  B. Rapid Spanning Tree Protocol Plus (RSTP+)
  C. Hot Standby Routing Protocol (HSRP)
  D. Rapid Spanning Tree Protocol (RSTP)
  E. EtherChannel (MEC)
  C. Hot Standby Routing Protocol (HSRP)
  E. EtherChannel (MEC)

• Question 122:

  Which two characteristics of the 802.1X standard are true? (Choose two.)

  A. This standard supports only wired LANs.
  B. It can package EAP messages in Ethernet frames and not use PPP.
  C. It was created by IEEE
  D. It was created by IETF
  E. Its EAP messages always require underlying PPP protocol
  B. It can package EAP messages in Ethernet frames and not use PPP.
  C. It was created by IEEE

• Question 123:

  When a new data center fabric is designed, which to protocols can be replaced when using FabricPath to create a loop-free topology? (Choose two)

  A. LACP
  B. MST
  C. GLBP
  D. HSRP
  E. STP
  B. MST
  E. STP

• Question 124:

  One-to-one ratio mapping for access switches close to servers.

  A. ToR
  B. EoR
  A. ToR

• Question 125:

  Which one is IETF standared

  A. Cisco Fabric Path
  B. Data Center Bridging
  C. CUS
  D. Transparent Interconnection of Lots of Links
  D. Transparent Interconnection of Lots of Links

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  The Data Center Bridging (DCB) architecture is based on a collection of open standards Ethernet extensions developed through the IEEE 802.1 working group to improve and expand Ethernet networking and management capabilities in the

  data center.

  https://www.cisco.com/c/dam/en/us/solutions/collateral/data-center-virtualization/ieee-802-1-data-centerbridging/at_a_glance_c45-460907.pdf TRILL

  ("Transparent Interconnection of Lots of Links") is an IETF Standard[1] implemented by devicescalled RBridges (routing bridges) or TRILL Switches.

  https://en.wikipedia.org/wiki/TRILL_(computing)

• Question 126:

  Which cisco NX-OS feature can be used to build highly scalable layer 2 multipath networks without utilizing the spanning tree protocol?

  A. OTV
  B. FabricPath
  C. vPC
  D. MST
  B. FabricPath

• Question 127:

  Which two statements about Layer 3 access designs are correct? (Choose two.)

  A. IP address space is difficult to manage.
  B. Broadcast and fault domains are increased.
  C. Convergence time is fractionally slower than STP.
  D. Limits on clustering and NIC teaming are removed.
  E. Fast uplink convergence is supported for failover and fallback.
  A. IP address space is difficult to manage.
  E. Fast uplink convergence is supported for failover and fallback.

• Question 128:

  NAC: Simple access control at user and device contextual level. Which features support (Choose 2)

  A. secure access control
  B. TrustSec
  C. ISE
  D. NAC agent
  C. ISE
  D. NAC agent

• Question 129:

  Which three of these are major scaling, sizing, and performance considerations for an IPsec design? (Choose three.)

  A. connection speed
  B. number of remote sites
  C. features to be supported
  D. types of devices at the remote site
  E. whether packets are encrypted using 3DES or AES
  F. number of routes in the routing table at the remote site
  A. connection speed
  B. number of remote sites
  C. features to be supported

• Question 130:

  The direction of the flow of multicast traffic is based on which protocol?

  A. PIM
  B. IGMP
  C. underlying IGP
  D. MSDP
  C. underlying IGP

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  https://www.cisco.com/c/en/us/td/docs/ios/solutions_docs/ip_multicast/White_papers/mcst_ovr.html "Reverse Path Forwarding (RPF) PIM uses the unicast routing information to create a distribution tree along the reverse path from the receivers towards the source. The multicast routers then forward packets along the distribution tree from the source to the receivers. RPF is a key concept in multicast forwarding. It enables routers to correctly forward multicast traffic down the distribution tree. RPF makes use of the existing unicast routing table to determine the upstream and downstream neighbors. A router will forward a multicast packet only if it is received on the upstream interface. This RPF check helps to guarantee that the distribution tree will be loopfree."