Cisco 300-320 Online Practice Questions and Exam Preparation

Cisco 300-320 Online Questions & Answers

• Question 271:

  What three benefits exist when utilizing Cisco Nexus technology for implementing a unified fabric design? (Choose three.)

  A. reduced cabling
  B. fewer adapters
  C. consolidated switching
  D. increased bandwidth
  E. enhanced redundancy
  F. improved convergence
  A. reduced cabling
  B. fewer adapters
  C. consolidated switching

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  https://www.safaribooksonline.com/library/view/foundation-learning-guide/9780132652933/ch06.html "Benefits of a unified fabric include the following:

  Reduced cabling: Multiple Fibre Channel and Ethernet connections can be replaced with a single 10 Gigabit Ethernet connection or a dual 10 Gigabit Ethernet connection for redundancy. In many cases, access layer cabling can be reduced

  by 50 percent, or even more if the server uses multiple 1 Gigabit Ethernet connections.

  Fewer access layer switches: In a typical top-of-rack (TOR) design, shown at the top of Figure 6-20, each rack contains at least four separate switches: two Ethernet switches to support redundant LAN connections and two Fibre Channel

  switches to support redundant SAN connections. By consolidating LAN and SAN connectivity on a single network, as shown in the lower part of Figure 6-20, each rack needs just two access switches that can provide both redundant LAN and

  SAN connectivity.

  Fewer network adapters per server: By combining LAN and SAN connectivity on a single 10 Gigabit Ethernet adapter, the number of network adapters that need to be installed in each server is heavily reduced. A single converged network

  adapter (CNA) can replace the combination of a Fibre Channel HBA and one or more Gigabit Ethernet adapters.

  Power and cooling savings: Reducing the number of access switches per rack and the number of network adapters per server leads to a reduced demand for power. The less power that is used, the less heat that is generated. This also leads

  to a reduction in cooling requirements. The lower number of access layer cables can also improve airflow in the data center, which can lead to more efficient use of the available cooling. Management integration: Combining LAN, SAN, and

  interprocess communication (IPC) networks on a single network infrastructure not only reduces the number of managed devices but also the overall management complexity.

  Wire once: Using a single type of connection, such as 10 Gigabit Ethernet, for LAN, SAN, and IPC eliminates the need to recable racks to provision storage or network connectivity to a server.

• Question 272:

  What are two benefits of using 6to4 as an IPv6 transition method? (Choose two.)

  A. 6to4 tunnels allow isolated IPv6 domains to be remotely connected over IPv4 networks.
  B. Manual configuration (scalability) is easier.
  C. Point-to-multipoint automatic tunneling (automatic 6to4) is available.
  D. An infinite number of address spaces are allocated to an IPv6 subnet.
  E. Globally unique IPv4 addresses are not required.
  A. 6to4 tunnels allow isolated IPv6 domains to be remotely connected over IPv4 networks.
  C. Point-to-multipoint automatic tunneling (automatic 6to4) is available.

• Question 273:

  Which three statements about zoning are correct? (Choose three.)

  A. Zoning increases security.
  B. DNS queries are used for software zoning.
  C. Software zoning is more secure than hardware zoning.
  D. When using zones and VSANs together, the zone is created first.
  E. Zoning requires that VSANs be established before it becomes operational.
  A. Zoning increases security.
  B. DNS queries are used for software zoning.
  E. Zoning requires that VSANs be established before it becomes operational.

• Question 274:

  SDN solution for WAN which is support automation, PnP (Plug and Play) application delivers on WAN...(Choose 1)

  A. APIC
  B. APIC-EM
  C. Enterprise NFV
  D. WAAS
  E. ACI
  B. APIC-EM

• Question 275:

  Which option maximizes EIGRP scalability?

  A. route redistribution
  B. route redundancy
  C. route filtering
  D. route summarization
  D. route summarization

• Question 276:

  While designing a backup BGP solution, a network engineer wants to ensure that a single router with multiplex connections prefers the routes from a specific connection over all others. Which BGP path selection attribute is considered first when seleccting a route?

  A. As-Length
  B. Link Bandwidth
  C. Local preference
  D. Weight
  E. MED
  D. Weight

• Question 277:

  Which technology allows network managers to centrally manage the VLAN database?

  A. VTP
  B. VLAN
  C. VSS
  D. vPC
  A. VTP

• Question 278:

  An engineer is designing an IP addressing scheme for a local company that requires multicast for its applications. For security reasons, only explicitly configured devices can be permitted to transmit across the network. Which multicast technology and address range must the engineer select?

  A. PIM-SM; 232.0.0.0/8
  B. ASM; 232.0.0.0/8
  C. SSM; 232.0.0.0/8
  D. SSM; 224.0.0.0/8
  C. SSM; 232.0.0.0/8

• Question 279:

  Which option is a benefit of the vPC+ feature?

  A. Cisco FabricPath is not required in the network domain.
  B. This feature provides fault domain separation.
  C. Nonfabric devices, such as a server or a classic Ethernet switch, can be connected to two fabric switches that are configured with vPC.
  D. The control plane and management plane are combined into one logical plane.
  C. Nonfabric devices, such as a server or a classic Ethernet switch, can be connected to two fabric switches that are configured with vPC.

• Question 280:

  Which two values does EIGRP use to calculate the metric of a route in a converged EIGRP topology (choose two):

  A. redundancy
  B. bandwidth
  C. cost
  D. delay
  E. hops
  B. bandwidth
  D. delay