Acme Packet AP0-001 Exam Questions Free Practice Test

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Questions # 11:

Of the following configured local policy preferences that the Net-Net 4000 sorts through, which one of the four preference discriminators listed below would be ranked the second highest priority?

Options:

codec

lowest cost

next hop

realm

Expert Solution

Questions # 12:

When two associated H323 stacks in different realms have the gatekeeper parameter defined, which one of the following statements is TRUE?

Options:

The Net-Net 4000 will proxy LRQ and LCF messages from one gatekeeper to the other and the TCP connection for H.225.0 will be established afterwards.

The Net-Net 4000 will respond locally to the LRQ with a LCF, and upon receiving the SETUP on the ingress leg, will open the TCP connection on the egress leg to send the SETUP.

It is not possible to have two associated H323 stacks when both have gatekeepers defined.

Registrations will be forwarded from one Gatekeeper to the other using unique RRQ messages.

Expert Solution

Questions # 13:

The ____________feature instructs the Net-Net 4000 whether to locally store all bindings for endpoints not located behind a NAT.

Options:

Registration caching

Reverse latching

Adaptive NAT traversal

Hairpinning

Expert Solution

Questions # 14:

Which one of the following statements about H.323 networks is FALSE?

Options:

The collection of all terminals, gateways, and MCU managed by a single gatekeeper is known as an Autonomous System (AS).

Gateways are not mandatory in an H.323 network.

Gatekeepers are not mandatory in an H.323 network.

Gateways translate call set-up messages and convert media formats.

Expert Solution

Questions # 15:

In a Net-Net 4000 high availability (HA) architecture, the standby Net-Net 4000 sends ARP requests using which one of the following?

Options:

The utility IP address and its hard coded MAC address.

The IP address and its hard coded MAC address.

The virtual IP address and its virtual MAC address.

The utility IP address and the configured virtual MAC address.

Expert Solution

Questions # 16:

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?

Options:

Policy Based Realm Bridging

SIP-NAT Bridging

Header Manipulation Rule Bridging

Session Agent Bridging

Expert Solution

Questions # 17:

Which two of the following statements regarding SIP processing are FALSE?

Options:

An initial INVITE will contain a From header tag and a To header tag as a globally unique identifier for the dialog.

To avoid retransmissions, User Agents must forward received 100 Trying messages to their next hop.

Calls Per Second are typically measured using a 7-10 message SIP call flow including call set-up and tear down.

The combination of the To tag, From tag, and Call-ID completely defines a peer-to-peer SIP relationship and is referred to as a dialog.

Expert Solution

Questions # 18:

Which two of the following statements about realms are TRUE?

Options:

You must have a minimum of three realms in any configuration as one realm must be designated as the home realm.

All endpoints within a realm must reside within the same subnet as the Net-Net 4000.

Although you can use both TCP and UDP concurrently as the transport protocol, you can only have one SIP-interface per realm.

You can associate multiple realms with a single network interface.

Expert Solution

Questions # 19:

When the nat-traversal parameter is set to always the Net-Net 4000 compares the __________________ and the Layer-3 source address to determine whether the endpoint is behind a NAT device and further compares the __________________ to the Layer-3 source address to determine whether to add the registration to its registration cache.

Options:

sent-by of the top most Via header host address of the Contact URI

sent-by of the bottom most Via header host address of the Contact URl

From address host address of the Contact URI

host address of the Contact URI From address

Expert Solution

Questions # 20:

You have copied a new Net-Net OS to the Net-Net 4000 and changed the boot parameters according to the display below. On reboot, the Net-Net 4000 is in a boot loop.

training1# check-space-remaining boot boot:

0/29702144 bytes (0%) remaining

training1# configure terminal

training1(configure)# bootparam

'.' = clear field; '-' = go to previous field; q = quit

boot device : wancom0

processor number : 0

host name :

file name : /tffs0/sd200p23.gz /tffs0/sd400q10.gz

inet on ethernet (e) : 10.0.3.11:ffff0000

inet on backplane (b) :

host inet (h) : 10.0.3.1

gateway inet (g) : 10.0.0.1

user (u) : anonymous

ftp password (pw) (blank = use rsh) : anonymous

flags (f) : 0x80008

target name (tn) : training1

startup script (s) :

other (o) :

NOTE: These changed parameters will not go into effect until reboot. Also, be aware that some boot parameters may also be changed through PHY and Network Interface Configurations.

training1(configure)# exit

training1# reboot force

Based on the information above, which three of the following scenarios could be the cause of the boot loop?

Options:

You did not copy the Net-Net OS file into the /boot directory.

The Net-Net OS file was truncated while being copied to the /boot directory due to lack of file space.

You mistyped the name of the Net-Net OS file in the file name property of the boot parameters.

The Net-Net 4000 was reset using the reboot force command without saving and activating the configuration changes first.

Expert Solution

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