Download Cisco Certified Design Expert Qualification Exam.352-001.CertDumps.2017-12-09.95q.vcex

Vendor: Cisco
Exam Code: 352-001
Exam Name: Cisco Certified Design Expert Qualification Exam
Date: Dec 09, 2017
File Size: 4 MB
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Demo Questions

Question 1
Refer to the exhibit. 
   
The server supports 802.1q and is running multiple VLANs on its NIC. Which two Layer 2 features should be applied to the network location identified by a circle? (Choose two.)
  1. PortFast
  2. PortFast trunk
  3. BPDU guard
  4. UDLD
  5. BPDU filter
Correct answer: BE
Question 2
Which option describes a design benefit of Bridge Assurance?
  1. It allows small, unmanaged switches to be plugged into ports of access switches without the risk of switch loops.
  2. It makes the port go immediately into the forwarding state after being connected.
  3. It does notgeneratea spanning-tree topology change upon connecting and disconnecting a station on a port.
  4. It prevents switched traffic from traversing suboptimal paths on the network.
  5. It prevents switch loops by detecting one-way communications on the physicalport.
Correct answer: C
Question 3
   
Refer to the exhibit. As the new network designer for a manufacturing company, you are designing this resilient Ethernet ring for the plant Ethernet network that is connected to the core, which does not use STP. Both edge ports are on the same switch in a ring segment. There is connectivity between the edge ports throughout the segment, so you create a redundant connection between any two switches in the ring. Which four options are characteristics of this design? (Choose four.)
  1. If a link fails, then the alternate ports quickly unblock. When the failed ink comes back up, a physically blocked port per VLAN is selected with minimal disruption to the network.
  2. If a link fails, then the alternate portsquickly unblock. Whenthe failed ink comes back up, a logically blocked port per VLAN is selected with minimal disruption to the network.
  3. If VLAN load balancing is configured, then two ports in the segment control the blocked state of VLANs.
  4. If VLAN load balancing is configured, then one port in the segment controls the blocked state of VLANs.
  5. If all ports in the segment are operational, then one port is in the blocked state for each VLAN.
  6. If one or more ports in a segment are not operational, thereby causing a linkfailure, then all ports forward traffic on all VLANs to ensure connectivity.
  7. If all ports in the segment are operational, then two ports are in the blocked state for each VLAN.
Correct answer: BCEF
Explanation:
REP segments have thefollowing characteristics:If all ports in a segment are operational, one port (referred to as the alternate port) is in the blocked state for each VLAN. If VLAN load balancing is configured, two ports in the segment control the blocked state of VLANs. If one or more ports in a segment is not operational, and cause a link failure, all ports forward traffic on all VLANs to ensure connectivity. In case of a link failure, alternate ports are unblocked as quickly as possible. When the failed link is up, a logically blocked portper VLAN is selected with minimal disruption to the network. References:
REP segments have thefollowing characteristics:
  • If all ports in a segment are operational, one port (referred to as the alternate port) is in the blocked state for each VLAN. If VLAN load balancing is configured, two ports in the segment control the blocked state of VLANs. 
  • If one or more ports in a segment is not operational, and cause a link failure, all ports forward traffic on all VLANs to ensure connectivity. 
  • In case of a link failure, alternate ports are unblocked as quickly as possible. When the failed link is up, a logically blocked portper VLAN is selected with minimal disruption to the network. 
References:
Question 4
Refer to the exhibit. 
   
A service provider would like to use Ethernet OAM to detect end-to-end connectivity failures between SP-SW1 and SP-SW2. In which two of these ways can you design this solution? (Choose two.)
  1. Enable Y.1731 Connectivity Fault Management on the SP switches.
  2. E-LMI PDUs must be forwarded over VPLS.
  3. Cisco Discovery Protocol PDUs must be forwarded over the VPLS.
  4. Use upward maintenance endpoints on the SP switches.
  5. Enable IEEE 802.1ag Connectivity Fault Management on the SP switches.
Correct answer: DE
Question 5
Which option describes a design benefit of root guard?
  1. It prevents switch loops caused by unidirectional point-to-point link condition of Rapid PVST+ and MST.
  2. It allows small, unmanaged switches to be plugged into ports of access switches without the risk of switch loops.
  3. It does not generate a spanning-tree topology change upon connecting and disconnecting a station on a port.
  4. It prevents switched traffic from traversing suboptimal paths on the network
  5. It prevents switch loops by detecting one-way communications onthe physical port
  6. It makes the port go immediately into the forwarding state after being connected.
Correct answer: B
Question 6
Company ABC is using an Ethernet virtual circuit as it’s provider’s DCI solution. A goal is to reduce the time to detect the link failure. Which protocol accomplishes this goal?
  1. UDLP
  2. spanning tree bridge assurance
  3. link aggregation group
  4. Ethernet OAM
Correct answer: D
Question 7
   
Refer to the exhibit. In this design, which technology provides for the best use of resources to provide end-to-end Layer 2 connectivity?
  1. PAgP
  2. Multichassis EtherChannel
  3. LACP
  4. MSTP
Correct answer: B
Question 8
   
Refer to the exhibit. 
This Layer 2 network is expected to add 150 VLANs over the next year, in addition to the existing 50 VLANs within the network. Which STP type will support this design requirement using the least amount of CPU resources and achieving load-balancing?
  1. MST
  2. CST
  3. PVST+
  4. RSTP
Correct answer: A
Explanation:
References:
References:
Question 9
In a network design using carrier Ethernet, which three mechanisms can be used to improve Layer 2 down detection and thereby reduce routing convergence time? (Choose three.)
  1. BFD
  2. Ethernet port debounce timers
  3. link-state tracking
  4. object tracking
  5. fast IGP hello
Correct answer: ADE
Question 10
When creating a network design, which one of these options provides for basic Layer 2 client isolation to prevent broadcast traffic exposure?
  1. SVI
  2. VLAN
  3. routed port
  4. edge port
Correct answer: B
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