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Q71. Which two routing protocols converge most quickly? (Choose two.)
A. RIPv1
B. RIPv2
C. BGP
D. OSPF
E. EIGRP
Answer: D,E
Q72. Which protocol is used to reserve bandwidth for the transport of a particular application data flow across the network?
A. cRTP
B. IEEE 802.1P
C. RSVP
D. LFI
E. Auto QOS
Answer: C
Explanation:
RSVP Signaling protocol that enables end stations or applications to obtain guaranteed bandwidth and low delays for their data flows.
Q73. Which two are types of network virtualization? (Choose two.)
A. VSS: Virtual Switching System
B. VRF: virtual routing and forwarding
C. VCI: virtual channel identifier
D. VLSM: variable length subnet masking
E. VM: virtual machine
F. VMP: Virtual Memory Pool
Answer: A,B
Explanation:
Network virtualization encompasses logical isolated network segments that share the same
physical infrastructure. Each segment operates independently and is logically separate
from the other segments. Each network segment appears with its own privacy, security,
independent set of policies, QoS levels, and independent routing paths.
Here are some examples of network virtualization technologies:
VLAN: Virtual local-area network
VSAN: Virtual storage-area network
VRF: Virtual routing and forwarding
VPN: Virtual private network
VPC: Virtual Port Channel
Q74. A hierarchical design of the EIGRP domain facilitates which two of the following? (Choose two.)
A. route summarization
B. faster convergence
C. unequal cost load balancing
D. redistribution
E. virtual links
Answer: A,B
Q75. What three considerations should be taken into account when selecting a routing protocol? (Choose three.)
A. classful routing
B. scalability
C. default route origination
D. multi vendor support
E. link load balancing
F. hop count
Answer: B,D,E
Q76. Which network virtualization technology involves creating virtual routers with its own individual routing tables on a physical router?
A. VSS
B. vPC
C. VRF
D. VLAN
Answer: C
Q77. What are two advantages of employing scalability when designing a campus network? (Choose two.)
A. reduces operational cost
B. higher port density
C. investment protection
D. consistent operation
E. improved fault tolerance
Answer: D,E
Q78. When designing a WAN backup for voice and video applications, what three types of connections should be used? (Choose three.)
A. Private WAN
B. internet
C. ISDN
D. MPLS
E. dial-up
F. ATM
G. DSL
Answer: A,C,D
Q79. A campus network needs end-to-end QoS tools to manage traffic and ensure voice quality. Which three types of QoS tools are needed? (Choose three.)
A. interface queuing and scheduling
B. congestion management
C. compression and fragmentation
D. bandwidth provisioning
E. traffic classification
F. buffer management
Answer: A,D,E
Q80. Which two statements about designing the Data Center Access layer are correct? (Choose two.)
A. Multiport NIC servers should each have their own IP address.
B. Layer 3 connectivity should never be used in the access layer.
C. Layer 2 connectivity is primarily implemented in the access layer.
D. Multiport NIC servers should never be used in the access layer.
E. Layer 2 clustering implementation requires servers to be Layer 2 adjacent.
Answer: C,E
Explanation:
User access is primarily layer 2 in nature, layer 2 clustering is possible only in layer 2 Here is the Explanation: from the Cisco press CCDA certification guide Figure 4-8. Enterprise Data Center Infrastructure Overview
Defining the DC Access Layer
The data center access layer’s main purpose is to provide Layer 2 and Layer 3 physical port density for various servers in the data center. In addition, data center access layer switches provide high-performance, low-latency switching and can support a mix of oversubscription requirements. Both Layer 2 and Layer 3 access (also called routed access) designs are available, but most data center access layers are built using Layer 2 connectivity. The Layer 2 access design uses VLAN trunks upstream, which allows data center aggregation services to be shared across the same VLAN and across multiple switches. Other advantages of Layer 2 access are support for NIC teaming and server clustering that requires network connections to be Layer 2 adjacent or on the same VLAN with one another.
CCDA 640-864 Official Certification Guide Fourth Edition, Chapter 4