Cisco ENCOR IP Services and QoS

Question 1

Which QoS model provides per-flow resource reservation using RSVP signaling?

Accepted Answer

IntServ

Answer

Integrated Services (IntServ) uses RSVP to reserve bandwidth and guarantee QoS on a per-flow basis end-to-end.

Question 2

What DSCP value corresponds to Expedited Forwarding (EF), commonly used for voice traffic?

Accepted Answer

DSCP 46

Answer

Expedited Forwarding (EF) is defined as DSCP 46 (binary 101110) and is used for delay-sensitive traffic like VoIP.

Question 3

Which NTP stratum level indicates the NTP server is directly connected to an authoritative time source?

Accepted Answer

Stratum 1

Answer

Stratum 1 NTP servers are directly synchronized to a Stratum 0 reference clock (e.g., GPS or atomic clock).

Question 4

What is the purpose of SNMP traps?

Accepted Answer

Send asynchronous event notifications from agent to manager

Answer

SNMP traps are unsolicited notifications sent by an SNMP agent to the manager when a significant event occurs.

Question 5

Which NAT type maps one internal IP address to one unique external IP address on a one-to-one basis?

Accepted Answer

Static NAT

Answer

Static NAT creates a permanent one-to-one mapping between an inside local and inside global IP address.

Cisco ENCOR Practice Test