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New Cisco 300-320 Exam Dumps Collection (Question 1 - Question 10)
Question No: 1
Which three statements about Network Attached Storage are correct? (Choose three.)
A. Data is accessed using NFS or CIFS.
B. Data is accessed at the block level.
C. NAS is referred to as captive storage.
D. Storage devices can be shared between servers.
E. A NAS implementation is not as fast as a DAS implementation.
Answer: A,D,E
Question No: 2
Which option is a common cause of congestion found in a campus network?
A. input serialization delay
B. output serialization delay
C. Rx-queue starvation
D. Tx-queue starvation
Answer: D
Question No: 3
Which STP enhancement can be configured on Layer 2 ports between distribution layer switches?
A. LoopGuard
B. PortFast
C. UplinkFast
D. RootGuard
Answer: A
Question No: 4
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
Question No: 5
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
Question No: 6
Which two of these are characteristics of multicast routing? (Choose two.)
A. multicast routing uses RPF.
B. multicast routing is connectionless.
C. In multicast routing, the source of a packet is known.
D. When network topologies change, multicast distribution trees are not rebuilt, but use the original path
E. Multicast routing is much like unicast routing, with the only difference being that it has a a group of receivers rather than just one destination
Answer: A,C
Question No: 7
Which statement is correct regarding NBAR and NetFlow?
A. NetFlow uses five key fields for the flow.
B. NBAR examines data in Layers 3 and 4.
C. NetFlow examines data in Layers 3 and 4.
D. NBAR examines data in Layers 2 through 4.
E. NetFlow examines data in Layers 2 through 4.
Answer: C
Explanation:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/netflow/configuration/12-4/nf-12-4-book/ios-netflowov.html#GUID-D670C93B-E93A-419A-968D-E5A953788418
Specifically, a flow is defined by the combination of the following seven key fields: Source IP address
Destination IP address
Source port number Destination port number Layer 3 protocol type Type of service (ToS) Input logical interface
Question No: 8
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
Question No: 9
What is the purpose of an OTV edge device?
A. connect to other data centers
B. connect to the access layer
C. connect to the end users
D. connect to mobile devices
Answer: A
Explanation:
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/DCI/whitepaper/DCI3_OTV_Intro/DCI_1.html
"Edge Device
The edge device (Figure 1-1) performs OTV functions: it receives the Layer 2 traffic for all VLANs that need to be extended to remote locations and dynamically encapsulates the Ethernet frames into IP packets that are then sent across the transport infrastructure.
[...]
Finally, the OTV edge device can be positioned in different parts of the data center. "
Question No: 10
Which two options are VRF components. (Choose two.)
A. RIB
B. VSS
C. FIB
D. HSRP
Answer: A,C
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