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2021 Mar 300-320 test preparation
Q51. With respect to address summarization, which of the following statements concerning IPv4 and IPv6 is true?
A. The potential size of the IPv6 address blocks suggests that address summarization favors IPv6 over IPv4.
B. Role based addressing using wildcard masks to match multiple subnets is suitable for IPv4, but unsuitable for IPv6.
C. In order to summarize, the number of subnets in the IPv4 address block should be a power of 2 while the number of subnets in the IPv6 address block should be a power of 64.
D. WAN link addressing best supports summarization with a /126 subnet for IPv4 and a /31 for IPv6.
Answer: B
Q52. A company requires real-time SAN replication between two remote locations. What is the standard path selection protocol for fabric routing?
A. FSPF
B. FICON
C. FCOE
D. SCSI
Answer: A
Q53. Which virtualization technology allows for HSRP protocol to be used in the active/active configuration where both HSRP Layer 3 devices can forward network traffic?
A. OTV
B. VSS
C. vPC
D. VDC
Answer: C
Q54. What is an advantage of using the Virtual Device Contexts feature in a data center environment?
A. The same VLAN cannot be configured in separate Virtual Device Contexts.
B. This feature provides fault domain separation.
C. Supervisor modules are shared between Virtual Device Contexts.
D. Fabric modules are shared between Virtual Device Contexts.
Answer: B
Q55. What are two characteristics of Server Load Balancing router mode? (Choose two.)
A. The design supports multiple server subnets.
B. An end-user sees the IP address of the real server.
C. SLB routes between the outside and inside subnets.
D. The source or destination MAC address is rewritten, but the IP addresses left alone.
E. SLB acts as a "bump in the wire" between servers and upstream firewall or Layer 3 devices.
Answer: A,C
Down to date 300-320 test:
Q56. Which option is a primary requirement for the deployment of an IPv6-enabled network via the native method (dual-stack model) within the enterprise campus environment?
A. hardware-based switching support for IPv6 forwarding on all campus switches
B. restriction of IPv6-enabled devices to the core layer
C. manual implementation of tunneling between IPv6-incompatible devices in an IPv4-over-IPv6 tunnel
D. disabling of multicast in the distribution layer prior to implementation of IPv6
Answer: A
Q57. Which two VPN solutions extend the routing capabilities of basic IPsec VPNs? (Choose two.)
A. GRE
B. NVI
C. DES
D. VTI
E. AES
Answer: A,D
Q58. 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.
Answer: B,C
Q59. Recently, the WAN links between the headquarters and branch offices have been slow under peak congestion, yet multiple alternate WAN paths exist that are not always congested. What technology can allow traffic to be routed in a more informed manner to utilize transport characteristics such as delay, loss, or link load?
A. performance routing
B. static routing
C. on demand routing
D. policy based routing
Answer: A
Q60. Which two options are storage topologies? (Choose two.)
A. WAS
B. DAS
C. CAS
D. NAS
Answer: B,D
