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AP0-001 Questions and Answers

Question # 6

A(n) __________ is an association between a globally unique SIP or SIPS URI and the user agent's contact address. This association is written by the registrar server to a database where it can be used by a proxy in the local domain.

A.

location record

B.

AOR

C.

binding

D.

public address

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Question # 7

A __________ is a real-time interactive voice, video or multimedia communication that is established using IP signaling protocols such as SIP, H.323 or MGCP.

A.

session agent

B.

call content connection

C.

steering agent

D.

session

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Question # 8

To enable the Net-Net 4000 to provide next hop signaling load balancing, which two of the following licenses must be installed?

A.

session agent group

B.

load balancing

C.

routing

D.

local policy

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Question # 9

Which two the following Best Current Practice configuration models would be used to provide complete topology hiding by re-writing the From and To headers of a SIP message?

A.

Policy Based Realm Bridging

B.

SIP-NAT Bridging

C.

Header Manipulation Rule Bridging

D.

Session Agent Bridging

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Question # 10

The Net-Net 4000 will release media between SIP endpoints that are located in the same realm when the ____________parameter is set to____________.

A.

msm-networkdisabled

B.

mm-in-realmdisabled

C.

mm-in-networkenabled

D.

mm-in-realmenabled

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Question # 11

In a(n) __________ exchange, a Master Slave Determination message is an example of a type of message that might be exchanged during the media setup portion of the call.

A.

RAS

B.

ISDN

C.

H.245

D.

H.225

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Question # 12

Using the command show redundancy sipd, redundancy statistics and transactions are displayed. Which 3 of the following statistics provide information about the state of SIP signaling checkpointing?

A.

CPU Utilization

B.

Error responses

C.

Retransmissions sent

D.

Duplicate requests

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Question # 13

Which one of the following statements about the SIP-NAT is TRUE?

A.

The Net-Net 4000 uses the SIP-NAT element to rewrite the contact-URI, the Via header and the SDP.

B.

The Net-Net 4000 uses the SIP-NAT to provide translation between a home address space and an external address space.

C.

The Net-Net 4000 uses the SIP-NAT to act as a service pipe to SIPD.

D.

You must have at least one SIP-NAT to route traffic between realms.

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Question # 14

You have changed a parameter in the realm-config element and have issued the done command. The change has now been committed to the __________ configuration.

A.

saved

B.

active

C.

edited

D.

running

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Question # 15

In a(n) __________ exchange, a Master Slave Determination message is an example of a type of message that might be exchanged during the media setup portion of the call.

A.

RAS

B.

ISDN

C.

H.245

D.

H.225

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Question # 16

How many simultaneous Telnet sessions does the Net-Net 4000 support in configuration mode in standard Net-Net OS version 2.x and above?

A.

5

B.

2

C.

1

D.

10

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Question # 17

Which three of the following are NAPT mappings that are pulled by the Standby node during media state checkpointing in high availability (HA) architectures?

A.

Source port

B.

Protocol ID

C.

Route

D.

Ingress Interface

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Question # 18

Before activating a configuration, you should use the ___________ ACLI command to verify the integrity of associated configuration objects.

A.

verify-config

B.

check-integrity

C.

verify-objects

D.

verify-integrity

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Question # 19

A __________ is a real-time interactive voice, video or multimedia communication that is established using IP signaling protocols such as SIP, H.323 or MGCP.

A.

session agent

B.

call content connection

C.

steering agent

D.

session

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Question # 20

Which two of the following statements about network interfaces are FALSE?

A.

For each physical interface, you must have at least one network interface with a sub-port-id of 999.

B.

More than one realm can be assigned to a network interface.

C.

By configuring the hip-ip-list and icmp-address parameters, you enable the Net-Net 4000 network processor to respond to PING.

D.

Network interfaces define a subnet of useable addresses, not necessarily the address that signaling and media has to be directed to.

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Question # 21

Which one of the following statements about SIP is FALSE?

A.

The Via header field indicates the transport used for the transaction.

B.

The Contact header field provides a SIP or SIPS URI that can be used to contact that specific instance of the UA for subsequent requests.

C.

A SIP transaction consists of a single request and any responses to that request, which include zero or more provisional responses and one or more final responses.

D.

A dialog is identified at each UA with a dialog ID, which consists of a Call-ID value, a Contact and a Request URI.

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