Which NAT type is used to translate a single inside address to a single outside address?
Correct Answer: D
Network address translation (NAT) is the process of modifying IP address information in IP packet headers
while in transit across a traffic routing device.
There are two different types of NAT:
What is the default lease time for a DHCP binding?
Correct Answer: A
By default, each IP address assigned by a DHCP Server comes with a one- day lease, which is the amount
of time that the address is valid. To change the lease value for an IP address, use the following command
in DHCP pool configuration mode:
Which RFC was created to alleviate the depletion of IPv4 public addresses?
Correct Answer: C
Which method does a connected trunk port use to tag VLAN traffic?
A.IEEE 802 1w
B.IEEE 802 1D
C.IEEE 802 1Q
D.IEEE 802 1p
Correct Answer: C
Configuration of which option is required on a Cisco switch for the Cisco IP phone to work?
A.PortFast on the interface
B.the interface as an access port to allow the voice VLAN ID
C.a voice VLAN ID in interface and global configuration mode
D.Cisco Discovery Protocol in global configuration mode
Correct Answer: B
Configure the Switch Port to Carry Both Voice and Data TrafficWhen you connect an IP phone to a switch
using a trunk link, it can cause high CPU utilization in the switches. As all the VLANs for a particular
interface are trunked to the phone, it increases the number of STP instances the switch has to manage.
This increases the CPU utilization. Trunking also causes unnecessary broadcast / multicast / unknown
unicast traffic to hit the phone link. In order to avoid this, remove the trunk configuration and keep the voice
and access VLAN configured along with Quality of Service (QoS). Technically, it is still a trunk, but it is
called a Multi-VLAN Access Port (MVAP). Because voice and data traffic can travel through the same port,
you should specify a different VLAN for each type of traffic. You can configure a switch port to forward voice
and data traffic on different VLANs. Configure IP phone ports with a voice VLAN configuration. This
configuration creates a pseudo trunk, but does not require you to manually prune the
unnecessary VLANs. The voice VLAN feature enables access ports to carry IP voice traffic from an IP
phone. The voice VLAN feature is disabled by default. The Port Fast feature is automatically enabled when
voice VLAN is configured. When you disable voice VLAN, the Port Fast feature is not automatically
Which IOS 12.4 software package integrates full features, including voice, security, and VPN capabilities, for all routing protocols?
Advanced IP Services
Advanced Enterprise Services*
Service Provider Services
What is the major release number in the IOS image name c1900-universalk9-mz.SPA.152-3.T.bin?
What statement describes a Cisco IOS image with the “universalk9_npe” designation for Cisco ISR G2 routers?
It is an IOS version that can only be used in the United States of America.
It is an IOS version that provides only the IPBase feature set.
It is an IOS version that offers all of the Cisco IOS Software feature sets.
It is an IOS version that, at the request of some countries, removes any strong cryptographic functionality. *
Which statement describes a difference between the IOS 15.0 extended maintenance release and a standard maintenance release?
They consist of two separate parallel trains.
The extended maintenance release will deliver new IOS features as soon as they are available.
The standard maintenance release enables faster IOS feature delivery than the extended maintenance release does.*
A new standard maintenance release will synchronize with the latest extended maintenance release before the extended is made available.
When a router is powered on, where will the router first search for a valid IOS image to load by default?
A network engineer is upgrading the Cisco IOS image on a 2900 series ISR. What command could the engineer use to verify the total amount of flash memory as well as how much flash memory is currently available?