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Designing Cisco Network Service Architectures (ARCH)

QUESTION 41

Which two statements about both FCIP and iSCSI are correct? (Choose two.)

 

A.

They support file-level storage for remote devices.

B.

They require high throughput with low latency and low jitter.

C.

Their purpose is to provide connectivity between host and storage

D.

They support block-level storage for remote devices.

E.

Their purpose is to provide connectivity between separate wide-area SANs.

 

Correct Answer: DE

 

 

QUESTION 42

here are 3 steps to confirm whether a range of IP addresses can be summarized. Which of the following is used in each of these 3 steps?

 

A.

The first number in the contiguous block of addresses

B.

The last number in the contiguous block of addresses

C.

The size of the contiguous block of addresses

D.

The subnet mask of the original network address

 

Correct Answer: C

 

 

QUESTION 43

Which three options are basic design principles of the Cisco Nexus 7000 Series for data center virtualization? (Choose three.)

 

A.

easy management

B.

infrastructure scalability

C.

cost minimization

D.

upgrade of technology

E.

transport flexibility

F.

operational continuity

 

Correct Answer: BEF

 

 

 

 

QUESTION 44

Which IPv4 multicast technical component measure provides architectural security?

 

A.

IGMP max groups

B.

access lists

C.

scoped addresses

D.

state limit

 

Correct Answer: C

 

 

QUESTION 45

Which option is the Cisco recommendation for data oversubscription for access ports on the access-todistribution uplink?

 

A.

4 to 1

B.

20 to 1

C.

16 to 1

D.

10 to 1

 

Correct Answer: B

 

 

QUESTION 46

With respect to address summarization, which of the following statements concerning IPv4 and IPv6 is true?

 

A.

The potential size of the IPv6 address blocks suggests that address summarization favors IPv6 over IPv4.

B.

Role based addressing using wildcard masks to match multiple subnets is suitable for IPv4, but unsuitable for IPv6.

C.

In order to summarize, the number of subnets in the IPv4 address block should be a power of 2 while the number of subnets in the IPv6 address block should be a power of 64.

D.

WAN link addressing best supports summarization with a /31 subnet for IPv4 and a /126 for IPv6.

 

Correct Answer: B

Explanation:

http://www.ciscopress.com/articles/article.asp?p=1763921

“For IPv6 access lists, the wildcard masks are not usually used. All source and destination addresses are notated in the form of prefixes. Therefore, it is important that subnets that are to be grouped in an access list falling within a summarized address range.”

 

 

QUESTION 47

Which one of these could you implement to sustain a large DDoS attack?

 

A.

Stateful firewall

B.

uRPF

C.

Connections limits and timeouts

D.

Access-lists

 

Correct Answer: C

 

QUESTION 48

When is a first-hop redundancy protocol needed in the distribution layer?

 

A.

when the design implements Layer 2 between the access and distribution blocks

B.

when multiple vendor devices need to be supported

C.

when preempt tuning of the default gateway is needed

D.

when a robust method of backing up the default gateway is needed

 

Correct Answer: A

 

 

QUESTION 49

Which option lists the EIGRP minimum timer settings for hello and dead timers in seconds?

 

A.

4 and 6

B.

2 and 4

C.

2 and 6

D.

Both 6

 

Correct Answer: C

 

 

QUESTION 50

How does ERS u
se the VLAN tag?

 

A.

to provide service internetworking

B.

to support transparency for Layer 2 frames

C.

as a connection identifier to indicate destination

D.

as a mapping to the DLCI in service internetworking

E.

to provide a trunk by which all VLANs can navigate from one site to one or multiple sites

 

Correct Answer: C

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