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2021 Nov 1Z0-400 exams
Q1. On a Net-Net 4500, a hardware-based timer will reset the system in the event of a catastrophic software or operating system failure.
This hardware timer is reset (preventing it from triggering) by the__________.
A. Acme Control Protocol Daemon
B. Border Element Redundancy Protocol Daemon (BERPD)
C. Console-timeout/telnet-timeout configuration in system-config
D. System clock
E. Watchdog process
Q2. Which two parameters MUST be specified when configuring a local policy for SIP peering?
D. Ingress-policy element and egress-policy element
E. Home realm
Q3. Which is NOT part of the Net-Net 4500's front panel:
A. Power and status LEDs B. A pinhole for issuing reset
C. A flip-down door covering two PCMCIA slots
D. A fan pack with removable and cleanable fan filter
E. A USB port for local storage
Q4. Which two parameters are NOT phy-interface parameters?
Q5. Your Net-Net 4500 is configured as the source and destination for all signaling messages and media streams coming into and leaving the provider's network.
Which two SIP functions does it provide?
A. Edge proxy
C. Back to Back User Agent
D. Media gateway
E. An IP edge router
Leading 1Z0-400 dumps:
Q6. When SNMP access is enabled to the Session Border Controller, which statement is TRUE?
A. There are no default community strings.
B. Only one trap receiver can be configured.
C. The default community strings are acme and packet.
D. The default community strings are public and private.
E. Community strings are in passive mode.
Q7. A steering pool defines__________.
A. A range of IP addresses used to route media flows as they egress the box.
B. A range of IP addresses and a pool of ports Net-Net 4500 will use to declare itself as the destination for all subsequent media flows in a dialog.
C. An IP address and range of ports the Net-Net 4500 will use to declare itself as the destination for media flows in a session.
D. An IP address and port the Net-Net 4500 uses for steering media to the external media server.
E. A range of ports used to route media flows as they egress the Net-Net 4500.
Q8. RRQ, ARQ, DRQ, and IRR are all examples of ________ signaling messages.
A. H.225.0 RAS
Q9. How does the Session Border Controller ensure that a pinhole is kept open for persistent communication to a SIP endpoint behind a NAT device?
A. By sending messages at a defined frequency
B. By sending ARP requests at a defined frequency
C. By issuing PINGs to the endpoint's NAT address
D. By changing the expires= parameter to a defined value in 200 OK responses to INVITEs
E. By changing the expires= parameter to a defined value in 200 OK responses to REGISTERS
Q10. Which statement about the Net-Net 4500 is FALSE?
A. The Net-Net 4500 can perform interworking between SIP REGISTER messages and
H.323 RRQs (Registration Request).
B. Different SIP Response Code mappings can be configured for each Soft-switch to which the Net-Net 4500 signals.
C. MGCP to SIP interworking function (IWF) is not supported.
D. The Net-Net 4500 media directing and control hides network topology at the forwarding level, while session routing and signaling hide it at the signaling level.
E. The Net-Net 4500 is the source and destination for all signaling messages and media streams coming into and leaving the provider's network.