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New Cisco 300-320 Exam Dumps Collection (Question 5 - Question 14)
Q1. Which of the following should the Enterprise Campus network designer consider with respect to Video traffic?
A. While it is expected that the sum of all forms of video traffic will grow to over 90% by 2021, the Enterprise will be spared this rapid adoption of video by consumers through a traditional top-down approach
B. Avoid bandwidth starvation due to video traffic by preventing and controlling the wide adoption of unsupported video applications
C. Which traffic model is in use, the flow direction for the traffic streams between the application components, and the traffic trends for each video application
D. Streaming video applications are sensitive to delay while interactive video applications, using TCP as the underlying transport, are fairly tolerant of delay and jitter
Answer: C
Q2. Which two design concerns must be addressed when designing a multicast implementation? (Choose two.)
A. only the low-order 23 bits of the MAC address are used to map IP addresses
B. only the low-order 24 bits of the MAC address are used to map IP addresses
C. only the high-order 23 bits of the MAC address are used to map IP addresses
D. only the low-order 23 bits of the IP address are used to map MAC addresses
E. the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses
F. the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses
Answer: D,F
Explanation: Ethernet & FDDI Multicast Addresses
- The low order bit (0x01) in the first octet indicates that this packet is a Layer 2 multicast packet. Furthermore, the u201c0x01005eu201d prefix has been reserved for use in mapping L3 IP multicast addresses into L2 MAC addresses.
- When mapping L3 to L2 addresses, the low order 23 bits of the L3 IP multicast address are mapped into the low order 23 bits of the IEEE MAC address. Notice that this results in 5 bits of information being lost. https://www.cisco.com/networkers/nw00/pres/3200/3200_c1_Mod2_rev1.pdf
Q3. 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.
Answer: A,E
Q4. Which technology is an example of the need for a designer to clearly define features and desired performance when designing advanced WAN services with a service provider?
A. FHRP to remote branches
B. Layer 3 MPLS VPNs secure routing
C. Control protocols (for example Spanning Tree Protocol) for a Layer 3 MPLS service
D. Intrusion prevention, QoS, and stateful firewall support network wide
Answer: C
Q5. Which protocol is best when there are circuit connections with two different ISPs in a multihoming scenario ?
A. VRRP
B. BGP
C. IPsec
D. SSL
Answer: B
Q6. Which unique characteristics of the Data Center Aggregation layer must be considered by an Enterprise Campus designer?
A. Layer 3 routing between the Access and Aggregation layers facilitates the ability to span VLANs across multiple access switches, which is a requirement for many server virtualization and clustering technologies.
B. "East-west" server-to-server traffic can travel between aggregation modules by way of the core, but backup and replication traffic typically remains within an aggregation module.
C. Load balancing, firewall services, and other network services are commonly integrated by the use of service modules that are inserted in the aggregation switches.
D. Virtualization tools allow a cost effective approach for redundancy in the network design by using two or four VDCs from the same physical switch.
Answer: C
Q7. Which two of these correctly describe Fibre Channel? (Choose two.)
A. supports multiple protocols
B. works only in a shared or loop environment
C. allows addressing for up to 4 million nodes
D. allows addressing for up to 8 million nodes
E. provides a high speed transport for SCSI payloads
F. may stretch to a distance of up to 100 km before needing extenders
Answer: A,E
Explanation: https://www.safaribooksonline.com/library/view/foundation-learning- guide/9780132652933/ch06.html
"Fibre Channel includes these features:
u2022 Addressing for up to 16 million nodes
u2022 Loop (shared) and fabric (switched) transport options
u2022 Host speeds of 100 to 400 MBps, or an effective throughput of 1 to 4 Gbps on the fabric
u2022 Segment distances of up to 6 miles (10 km)
u2022 Support for multiple protocols"
Q8. Refer to the exhibit.
Which functionality must be enabled on router A to connect two networks for translating private addresses into "legal" public addresses on a one-for-one basis?
A. PAT
B. NAT
C. VLAN
D. GARP
E. PPP
Answer: B
Q9. 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
Q10. 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?
A. peer groups
B. policy templates
C. session templates
D. peer address families
Answer: A
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