[Free] 2017(June) Ensurepass Testking Cisco 300-320 Actual Tests 111-120

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Designing Cisco Network Service Architectures (ARCH)

QUESTION 111

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

 

Correct Answer: AB

Explanation:

“There are some disadvantages with EOR designs:

Cable bulk: More cabling needs to be routed and managed.

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:

Decreased management complexity: There are fewer devices to manage, which makes this task less complex.

Decreased STP processing: With fewer devices in the Layer 2 infrastructure and significantly fewer uplinks, there is less impact on STP processing.

Redundancy options: Redundant switch power and CPUs can be supported on modular switches.”

QUESTION 112

Which statement about the ToR design model is true?

 

A.

It can shorten cable runs and simplify rack connectivity.

B.

Each ToR switch must be individually managed.

C.

Multiple ToR switches can be interconnected to provide a loop-free spanning-tree infrastructure.

D.

It can connect servers that are located in separate racks.

 

Correct Answer: A

 

 

QUESTION 113

Which three virtualization categories are in campus networks? (Choose three.)

 

A.

Layer 2 virtualization

B.

Layer 3 clustering

C.

network virtualization

D.

device virtualization

E.

network clustering

F.

device clustering

 

Correct Answer: CDF

 

 

QUESTION 114

DRAG DROP

Drag the task on the left to the appropriate layer category on the right.

 

clip_image002

 

Correct Answer:

clip_image004

 

 

QUESTION 115

In which NAS operating mode are ACL filtering and bandwidth throttling only provided during posture assessment?

 

A.

Layer 2

B.

in-band

C.

out-of-band

D.

edge

E.

central

F.

Layer 3

 

Correct Answer: C

Explanation:

https://www.safaribooksonline.com/library/view/foundation-learning-guide/9780132652933/ch06.html

 

“In out-of-band traffic flow, the Cisco NAS is in the traffic path only during the posture assessment. Out-of-band mode provides VLAN port-based and role-based access control. ACL filtering and bandwidth throttling are provided only during posture assessment.”

 

 

QUESTION 116

What are two point-to-multipoint overlay tunneling strategies that are used in transitioning to IPv6? (Choose two)

 

A.

ISATAP

B.

6to4

C.

Nat64

D.

Dual-stack

 

Correct Answer: AB

Explanation:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/interface/configuration/xe-3s/ir-xe-3s-book/ip6-6to4-tunlsxe.html

 

“The key difference between automatic 6to4 tunnels and manually configured tunnels is that the tunnel is not point-to-point; it is point-to-multipoint.”

 

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/interface/configuration/xe-3s/ir-xe-3s-book/ip6-isatap-xe.html

 

“ISATAP Point-to-multipoint tunnels that can be used to connect systems within a site.”

 

 

QUESTION 117

Which QoS architecture provides scalability of implementation?

 

A.

IntServ

B.

DiffServ

C.

LLQ

D.

RSVP

 

Correct Answer: B

 

 

QUESTION 118

Which technology fulfills these requirements?

 

clip_image006Utilize a connection that must support a range of traffic, voice, video, and data.

clip_image006[1]This traffic must also support transmission via a fixed blank 53-byte cell.

 

A.

PPP

B.

Frame Relay

C.

ATM

D.

MPLS

E.

X.25

 

Correct Answer: C

 

 

QUESTION 119

A company needs to configure a new firewall and have only one public IP address to use in this firewall. The engineer need to configure the firewall with NAT to handle inbound traffic to the mail server in addition to internet outbound traffic. Which options could he use? (Choose two)

 

A.

Static NAT for inbound traffic on port 25

B.

Dynamic NAT for outbound traffic

C.

Static NAT for outbound traffic on port 25

D.

Dynamic NAT for inbound traffic

E.

NAT overload for outbound traffic

F.

NAT overload for inboud traffic on port 25

 

Correct Answer: AE

 

 

 

QUESTION 120

What is an advantage of using the Cisco FabricPath feature in a data center environment?

 

A.

VSS does not have to be configured.

B.

Transparent Interconnection of Lots of Links can be configured simultaneously.

C.

Equal-Cost Multipath can be used to choose the forwarding path.

D.

The control plane and management plane remain separate.

 

Correct Answer: C

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