Get all latest (August) Cisco 642-874 Actual Test 41-50

Ensurepass

 

QUESTION 41

Which type of application traffic typically requires prioritization across networks and may use a DSCP value of 34 (AF41)?

 

A.

voice

B.

interactive video

C.

call signaling

D.

routing

E.

streaming video

F.

network management

Correct Answer: B

 

 

QUESTION 42

Which two of these correctly describe asymmetric routing and firewalls? (Choose two.)

 

A.

only operational in routed mode

B.

only operational in transparent mode

C.

only eight interfaces can belong to an asymmetric routing group

D.

operational in both failover and non-failover configurations

E.

only operational when the firewall has been configured for failover

 

Correct Answer: CD

 

 

QUESTION 43

What Nexus technology avoids blocking links between the access layer and the aggregation layer in a data center network design?

 

A.

FCoE

B.

LACP

C.

vPC

D.

FEX

 

Correct Answer: C

 

 

QUESTION 44

A network engineer is implementing virtualization into the enterprise network. Which system should be used to address policy enforcement at the distribution layer?

 

A.

Cisco IOS based firewall

B.

multilayer switches

C.

integrated firewall services

D.

identity services engine

E.

intrusion protection systems

 

Correct Answer: C

 

 

QUESTION 45

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

E.

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

 

Correct Answer: A

 

 

 

QUESTION 46

Which option is a recommended firewall topology?

 

A.

using two firewalls with stateful failover switched mode

B.

using one firewall with NAT enabled in transparent mode

C.

using two firewalls in active/active mode

D.

using one firewall with stateful failover enabled in routed mode

 

Correct Answer: C

 

 

QUESTION 47

Which two of these are correct regarding the recommended practice for distribution layer design? (Choose two.)

 

A.

use a redundant link to the core

B.

use a Layer 2 link between distribution switches

C.

never use a redundant link to the core because of convergence issues

D.

use a Layer 3 link between distribution switches with route summarization

E.

use a Layer 3 link between distribution switches without route summarization

 

Correct Answer: AD

 

 

QUESTION 48

Which statement about IPS and IDS solutions is true?

 

A.

IDS and IPS read traffic only in inline mode.

B.

IDS and IPS read traffic only in promiscuous mode.

C.

An IDS reads traffic in inline mode, and an IPS reads traffic in promiscuous mode.

D.

An IDS reads traffic in promiscuous mode, and an IPS reads traffic in inline mode.

 

Correct Answer: D

 

 

QUESTION 49

To which network layer should Cisco Express Forwarding be tuned to support load balancing and to make more informed forwarding decisions?

 

A.

Layer 1

B.

Layer 2

C.

Layer 3

D.

Layer 4

E.

Layer 5

F.

Layer 6

G.

Layer 7

 

Correct Answer: D

 

 

 

 

 

QUESTION 50

Which three options are features of IP SLAs? (Choose three.)

 

A.

enables verification of service guarantees

B.

dynamically adjusts QoS parameters

C.

validates network performance and metrics

D.

initiates failover for saturated links

E.

proactively identifies network related issues

 

Correct Answer: ACE

 

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