CCNP ENCOR 350-401: Implementing Cisco Enterprise Network Core Technologies Practice Questions Part 1

A switch has 48 ports and 4 VLANs. How many collision and broadcast domains exist on the switch (collision, broadcast)?

How are entries populated into the MAC Address Table?

Which of the following are not in the list of possible actions a switch can perform on a received frame?

Once a MAC address is dynamically learned and if that MAC address is never seen again, how long will the switch wait before purging the entry?

Which statements are valid on a switch that utilizes SDM Templates?

What does “TCAM” stand for?

TCAM memory is split into which sub-components?

What command can view a list of all possible templates on a switch that uses SDM Templates?

Which VLAN is reserved only for use with 802.1p?

Within a Cisco IOS switch, what is the command to apply VLAN-99 to interface FastEthernet0/1?

Which of the following commands will cause an interface to initiate the transmission of DTP frames? (Choose 2)

Which combination of DTP modes will successfully form a VLAN Trunk between a Cisco switch and a Cisco Router?

What field can be used within an 802.1q tag to insert a QoS value?

A network admin enters the following command on an interface currently trunking, “switchport trunk allowed vlan except 10”. A few days later, a different network admin configures that same interface with the following command “switchport trunk allowed vlan 1-20”. Based on these actions, which of the following answers is true?

Which of the following is the correct command to allow the 802.1q native VLAN tagging on a trunk?

Which of the following statements about the 802.1q Native VLAN are true? (Select the best answer)

Which VTP mode is activated by default when using VTP version 3?

Which of the following statements about the VTP Configuration Revision Number are true? (Choose two)

Which of the following statements about VTP are true? (Choose Two)

Which type of VTP message carries the complete list of current VLANs?

When using VTP version 3, which modes allow you to manually add-and-remove VLANs on the local switch? (Choose Two)

Which of the following commands will place a switch into a VTP Mode where you can create VLANs on that switch, but it will not learn of any VLANs from other switches?

Which commands will cause the VTP Configuration Revision value to reset back to the default/starting value?

Which command, when issued on a switch running VTP version 3, will allow you to add-or-delete VLANs on that local switch?

What is the maximum number of active links that can participate in an Etherchannel bundle?

Which of the following commands will allow you to view the current Etherchannel Load-Balancing Algorithm in use?

Which of the following is an IEEE protocol for dynamically creating-and-maintaining EtherChannel?

Which statements would be true when multiple links are bundled into an EtherChannel?

Which command can be used to monitor EtherChannel?

Which mode(s) of Etherchannel utilize LACP?

Which mode(s) of Etherchannel will not transmit LACP or PAgP frames?

A network admin issues the following commands. Based on what you see here, which of the following answers is true?
Switch(config)#interface range FastEthernet0/1-4, GigabitEthernet2/1-5
Switch(config-if-range)#channel-group 4 mode active

How are “Edge Ports” identified by a switch that is running RSTP?

Which of the following correctly identifies the mechanism by which a switch running RSTP can identify a port as either “Shared” or “Point-to-Point”?

Which of the following statements about Rapid-PVST are true?

In RSTP, what triggers a switch to determine that its upstream, Designated Bridge is no longer reachable?

A customer wishes to modify the default value of the Spanning-Tree Hello interval. Where does this change need to occur across the Layer-2 bridging domain?

A single “instance” of MST corresponds to which of the following?

A company has a layer-2 bridging domain consisting entirely of Cisco switches running PVST. What is their most likely motivation for migrating to 802.1s MST?

Which commands will migrate a Cisco switch from PVST to MST?

However, if a Cisco switch has been migrated to MST, no other MST-related configuration commands were applied. Which of the following statements would be true?

Which configurable values must match between all switches intended to be in the same MST domain?

VLAN-5 has been assigned to MST Instance-2. What will be the default Bridge Priority value for this instance within a transmitted MST BPDU?

After migrating to MST, what is the default cost of a GigabitEthernet interface?

Given the following graphic, which of the following pairs of commands would ensure that traffic from the laptop to the server would leave/egress Switch-X on interface GigabitEthernet0/7? (Select two answers)

Which of the following statements are true regarding MST Boundary ports?

Which events would trigger a switchport to be considered a “Boundary” port by MST?

Which statements are true regarding the election of the CIST Regional Root when using MST?

Switch-X (outside the MST Region) is the CST Root Bridge, and Switch-Y is the IST Master. Which port will Switch-Z (a switch internal to the MST Region) select as its Root Port for Instance-0?

A PVST switch (containing five VLANs) is connected via an 802.1q Trunk to an MST switch. The port on the MST switch is a Designated Port. Based on these facts, which of the following answers is true?

A PVST switch (Switch-X, containing VLANs-1 through VLAN-5) is connected via an 802.1q Trunk to an MST switch (Switch-Y). The CIST Regional Root and the CST Root Bridge have elected the MST switch. Based on this fact, which of the following answers is true?

Select the correct answer that fills in the blank. In many Wi-Fi standards, a single data bit is encoded into a multi-bit pattern called a(n) [___] sequence to provide more resilience.

Within the context of physics, Wi-Fi consists of manipulating the following?

In the context of Wi-Fi in the United States, three groupings of frequencies are free to use, not requiring any license or regulation. What are these groups collectively called?

Which statements are true regarding comparing Spread Spectrum technologies against Narrowband Transmission technologies? (Choose two)

Which of the following characteristics of Radio Frequencies can be changed due to modulation but are not intentionally changed to encode data?

What is the name of a particular frequency assigned to a given channel modified/manipulated to carry data?

RF amplitude weakens over distance and as it passes through objects. This weakening of the signal is technically called ______.

The act of modifying/manipulating a Radio Frequency to encode data is called?

Which statements are true regarding comparing BPSK to DQPSK?

A typical indoor wireless access point will transmit at what maximum power level?

The relative value of 0 dBm is equivalent to what absolute value?

What unit of measurement is typically used when measuring RF power (used in Wireless LANs) in absolute values?

When transmitting a WiFi signal, an antenna ¬¬¬___________ to the transmitted signal

The original signal transmitted from a WiFi Access Point starts at 20dBm. By reaching a WiFi receiver, it has degraded to -16dBm. Does this mean that the absolute power received by the WiFi receiver is?

Using the “Rule of 10s and 3s,” an increase in power of 3dB is equivalent to which of the following?

Which of the following statements are true about Isotropic antennas?

Which of the following (in a WLAN environment) would be considered a very strong (and reasonable) received Wi-FI signal?

Which statements are true regarding WiFi signals in an extremely high Noise Floor environment?

As radio frequencies propagate through the air, they induce a measurable and predictable amount of loss based on distance. Is it technically called?