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New Cisco 300-320 Exam Dumps Collection (Question 6 - Question 15)
Q1. Which statement about NIC teaming configurations is true?
A. With ALB, all ports use one IP address and multiple MAC addresses.
B. With AFT, two NICs connect to the different switches.
C. With SFT, all ports are active.
D. With AFT, all ports use one IP address and multiple MAC addresses.
Answer: A
Explanation:
u2022 Adapter fault tolerance (AFT): With AFT designs, two NICs connect to the same switch. One adapter is active and the other standby, and they use one common IP address and MAC address.
u2022 Switch fault tolerance (SFT): With SFT designs, one port is active and the other standby, and they use one common IP address and MAC address.
u2022 Adaptive load balancing (ALB): With ALB designs, one port receives and all ports transmit using one IP
address and multiple MAC addresses.
Q2. Which three options are basic technical metrics that a good SLA includes? (Choose three.)
A. packet loss
B. devices
C. latency
D. clients
E. IP availability
F. distance
Answer: A,C,E
Q3. How does ERS use the VLAN tag?
A. to provide service internetworking
B. to support transparency for Layer 2 frames
C. as a connection identifier to indicate destination
D. as a mapping to the DLCI in service internetworking
E. to provide a trunk by which all VLANs can navigate from one site to one or multiple sites
Answer: C
Q4. Which two options are advantages of having a modular design instead of an EOR design in a data center? (Choose two.)
A. cooling constraints
B. cable bulk
C. decreased STP processing
D. redundancy options
E. cost minimization
F. low-skilled manager
Answer: A,B
Explanation:
"There are some disadvantages with EOR designs:
u2022 Cable bulk: More cabling needs to be routed and managed.
u2022 Cooling constraints: The cable bulk at the cabinet floor entry can be difficult to manage and can block
cool airflow."
-> So these are advantages of modular design. (Less cooling constraints and no cable bulk)
NOTE for your learnings:
"There are several advantages with EOR designs:
u2022 Decreased management complexity: There are fewer devices to manage, which makes this task less
complex.
u2022 Decreased STP processing: With fewer devices in the Layer 2 infrastructure and significantly fewer
uplinks, there is less impact on STP processing.
u2022 Redundancy options: Redundant switch power and CPUs can be supported on modular switches."
Q5. What feature is a benefit of using Cisco UCS blade servers for data center virtualization?
A. guest VM high availability
B. converged LAN and SAN infrastructure
C. host based etherchannel
D. built-in hypervisor
Answer: B
Q6. Which two statements are correct regarding Flex Links? (Choose two.)
A. An interface can belong to multiple Flex Links
B. Flex Links operate only over single pairs of links.
C. Flex Link pairs must be of the same interface type.
D. Flex Links automatically disable STP so no BPDUs are propagated.
E. Failover from active to standby on Flex Links takes less than a second.
Answer: B,D
Explanation: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12- 2SX/configuration/guide/book/flexlink.html
"Flex Links are a pair of a Layer 2 interfaces (ports or port channels), where one interface is configured to
act as a backup to the other. Flex Links are typically configured in service-provider or enterprise networks
where customers do not want to run STP. Flex Links provide link-level redundancy that is an alternative to
Spanning Tree Protocol (STP). STP is automatically disabled on Flex Links interfaces." "A backup link does not have to be the same type as the active link"
Q7. A customer with a single Cisco Adaptive Security Appliance wants to separate multiple segments of the ecommerce network to allow for different security policies. What firewall technology accommodates these design requirements?
A. virtual contexts
B. private VLANs
C. admission control
D. virtual private network
Answer: A
Q8. Which two benefits are achieved if a network is designed properly with a structured addressing scheme? (Choose two.)
A. efficient ACLs
B. improved redundancy
C. hardened security
D. easier troubleshooting
E. added resiliency
Answer: A,D
Q9. The direction of the flow of multicast traffic is based on which protocol?
A. PIM
B. IGMP
C. underlying IGP
D. MSDP
Answer: C
Explanation: 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."
Q10. Which first-hop redundancy protocol that was designed by Cisco allows packet load sharing among groups of redundant routers?
A. GLBP
B. HSRP
C. VRRP
D. VSS
Answer: A
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