1Z0-404 Online Practice Questions and Answers

How doesthe Session Border Controller ensure that a pinhole is kept open for persistent communication to a SIP endpoint behind a NAT device?

A. by changing the expires= parameter to a defined value in 200 OK responses to REGISTERs

B. by changing the expires= parameter to a defined value in 200 OK responses to INVITEs

C. by issuing PINGs to the endpoint's NAT address

D. by sending Address Resolution Protocol (ARP) requests at a defined frequency

E. by sending messages at a defined frequency

Which statement is true when SNMP access is enabled to the Session Border Controller?

A. The default community strings are acme and packet.

B. The default community stringsare public and private.

C. Community strings are in passive mode.

D. There are no default community strings.

E. Only one trap receiver can be configured.

You are configuring access rules in a Session Border ControllerPeering architecture.

Which two configuration steps are required to allow access only from User Agents (UAs) configured as session agents? (Choose two.)

A. Navigate to the sip-port configuration element and set the allow-anonymous parameter to all.

B. Navigate to the session-agent configuration element and set the ip-address parameter to the IP subnet of your trusted User Agent (UA).

C. Navigate to the realm-config configuration element and set the addr-prefix parameter to the IP subnet of your trusted User Agent (UA).

D. Navigate to the sip-port configuration element and set the allow-anonymous parameter to agents-only.

E. Navigate to the sip-port configuration element and set the allow-anonymous parameter to address-prefix.

What is the effect of executing the save-config command in superuser mode?

A. The running configuration version is reset to 1.

B. The running configuration version does not increase and is equal to thesaved configuration version.

C. The saved configuration version increases by 1 and is higher than the running configuration version.

D. The running configuration version increases by 1 and is higher than the saved configuration version.

E. The editing configuration version increases by 1 and is higher than the saved configuration version.

A steering pool defines _____________.

A. a range of ports used to route media flows as they egress the Session Border Controller

B. an IP address and port the Session Border Controller uses for steering media to the external media server

C. an IP address and range of ports the Session Border Controller will use to declare itself as the destination for media flows in a session

D. a range of IP addresses and a pool of ports the Session Border Controller will use to declare itself as the destination for all subsequent media flows in a dialog

E. arange of IP addresses used to route media flows as they egress the Session Border Controller

The Session Border Controller needs to be configured to act as a Back-to-Back User Agent (B2BUA).

How would you accomplish this?

A. Navigate to the sip-config configuration element and set the operation-mode to stateless.

B. Navigate to the sip-configconfiguration element and set the operation-mode to dialog.

C. Navigate to the sip-config configuration element and set the operation-mode to stateful.

D. Navigate to the session-router configuration element and set the operation-mode to dialog.

E. Navigate to the session-router configuration element and set the operation-mode to none.

What configuration step is required for booting the SessionBorder Controller from an external FTP server?

A. Navigate to the bootparams configuration branch and set the host inet field to the IP address of the external BOOTP Server from which the Session Border Controller can boot.

B. Navigate to the system configuration branch and set the ip address field of the wancom1 management interface.

C. Navigate to the bootparams configuration branch and set the ip address field of the destination SIP device with which the Session Border Controller needs to interact.

D. Navigate to the system configuration branch and set the ip address field of the wancom0 management interface.

E. Navigate to the bootparams configuration branch, set the host inet or Host IP, FTP username, and FTP password for the external FTP Server in which the image file resides.

In which two ways can you remove support for telnet from a media interface? (Choose two.)

A. Navigate to the network-interface configuration element and run the delete-hip-ip command.

B. Navigate to the phy-interface configuration element and run the remove-hip-ip command.

C. Navigate to the network-interface configuration element and run the remove-telnet-ip command.

D. Navigate to the network-interface configuration element and run the remove-hip-ip command.

E. Navigate to the phy-interface configurationelement and run the remove-telnet-ip command.

What is used by the standby Session Border Controller to send ARP requests via the media interface in a High Availability (HA) architecture?

A. the IP utility address and its virtual MAC address

B. the virtual IP address and its hardcoded MAC address

C. the IP utility address and its hardcoded MAC address

D. the virtual IP address and its virtual MAC address

E. the IP utility address andthe MAC utility address

You are troubleshooting a SIP routing issue and you haveaccess to the SIP call ow processed by the Session Border Controller.

Which two steps are valid for troubleshooting this type of issues? (Choose two.)

A. It is necessary to locate the SIP session to troubleshoot and check if there is a 404 Routes Not Found SIP error message.

B. It is recommended to look for 183 Session Progress SIP error messages that indicate routing issues.

C. It is recommended to check the called number by looking at the Request-URI of the INVITE message and making sure it is a validnumber to be routed.

D. It is recommended to find the CANCEL method received by the Session Border Controller which typically identifies a SIP routing issue.

E. It is necessary to find an initial INVITE received by the Session Border Controller which getsa 503 Service Unavailable SIP error message.