640-864 Study Exam

QUESTION NO:15

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: CE

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.

QUESTION NO:16

Refer to the exhibit.

Which two statements correctly identify the layers of the Enterprise Campus module? (Choose two.)

A. A is the Data Center Module and C is the Campus Core layer.
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B. A is the Data Center Module and D is the Building Access layer.
C. B is the Campus Core layer and C is the Building Distribution layer.
D. B is the Building Distribution layer and C is the Campus Core layer.
E. A is the Internet Connectivity layer and B is the Campus Core layer.
F. B is the Building Distribution layer and D is the Building Access layer.

 Answer: BC